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SEA - WAS

C$ 115 Find cheap flights from Seattle to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Washington, D.C. departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 2/6
Sun 9/6

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Washington, D.C., as well as popular online travel agencies
In the last 7 days, travellers have searched 43,693,958 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Washington, D.C. (SEA-WAS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:08 p.m. - 12:03 p.m.SEA-DCA
10h 55m1 stop
6:57 p.m. - 7:01 a.m.DCA-SEA
15h 04m1 stop
C$ 334Frontier
Find Deal
Sat, 25 May - Tue, 4 Jun
8:04 a.m. - 9:59 p.m.SEA-DCA
10h 55m1 stop
12:59 p.m. - 9:36 p.m.DCA-SEA
11h 37m1 stop
C$ 360Frontier
Find Deal
Sun, 26 May - Sat, 8 Jun
11:28 p.m. - 7:40 a.m.SEA-IAD
5h 12mdirect
7:00 a.m. - 9:30 a.m.IAD-SEA
5h 30mdirect
C$ 377Alaska Airlines
Find Deal
Tue, 28 May - Wed, 5 Jun
10:22 p.m. - 6:25 a.m.SEA-IAD
5h 03mdirect
7:31 a.m. - 10:20 a.m.IAD-SEA
5h 49mdirect
C$ 380Delta
Find Deal
Tue, 28 May - Tue, 4 Jun
4:00 p.m. - 11:59 p.m.SEA-IAD
4h 59mdirect
7:00 a.m. - 9:30 a.m.IAD-SEA
5h 30mdirect
C$ 384Alaska Airlines
Find Deal
Sun, 26 May - Wed, 5 Jun
9:10 a.m. - 8:47 p.m.SEA-IAD
8h 37m1 stop
11:20 a.m. - 7:25 p.m.IAD-SEA
11h 05m1 stop
C$ 388Sun Country Air
Find Deal
Sat, 1 Jun - Wed, 5 Jun
10:22 p.m. - 6:25 a.m.SEA-IAD
5h 03mdirect
7:31 a.m. - 10:20 a.m.IAD-SEA
5h 49mdirect
C$ 396Delta
Find Deal
Thu, 30 May - Sun, 2 Jun
8:45 a.m. - 8:22 p.m.SEA-IAD
8h 37m1 stop
12:30 p.m. - 7:55 a.m.IAD-SEA
22h 25m1 stop
C$ 404Sun Country Air
Find Deal
Sat, 25 May - Sun, 26 May
11:59 p.m. - 11:38 a.m.SEA-IAD
8h 39m1 stop
5:20 p.m. - 8:08 p.m.IAD-SEA
5h 48mdirect
C$ 545United Airlines
Find Deal
Mon, 16 Sep - Mon, 30 Sep
11:59 p.m. - 9:55 a.m.SEA-IAD
6h 56m1 stop
10:15 p.m. - 12:59 a.m.IAD-SEA
5h 44mdirect
C$ 548United Airlines
Find Deal
Mon, 27 May - Sun, 2 Jun

Flights from Seattle to Washington, D.C. - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seattle to Washington, D.C. flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Seattle to Washington, D.C..
Our data shows that the cheapest route for a one-way flight from Seattle to Washington, D.C. cost C$ 242 and was between Seattle and Baltimore. On average, the best prices are found if you fly this route. The average price for a return flight for this route is C$ 484.

What’s the cheapest day of the week to fly from Seattle to Washington, D.C.?

The average price of all flights from Seattle to Washington, D.C. clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to Washington, D.C., look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington, D.C., Wednesday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Seattle to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to Washington, D.C. is January, where tickets cost C$ 358 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 737 and C$ 669 respectively.

How far in advance should I book a flight from Seattle to Washington, D.C.?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Washington, D.C., you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 42 days before departure.

Which airlines provide the cheapest flights from Seattle to Washington, D.C.?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Seattle to Washington, D.C. found on KAYAK was with JetBlue for C$ 115. Frontier proposed a round-trip connection from C$ 334 and Alaska Airlines from C$ 377.

Which airlines fly most frequently between Seattle and Washington, D.C.?

Alaska Airlines (11 flights per day), United Airlines (5 flights per day), and Delta (2 flights per day) are the most frequent flyers of this route.

Which airlines fly direct between Seattle and Washington, D.C.?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to Washington, D.C..
There are 3 airlines that fly direct from Seattle to Washington, D.C.. They are: Alaska Airlines, Delta and United Airlines. The cheapest price of all airlines flying this route was found with Alaska Airlines at C$ 313. On average, the best prices for this route can be found at Delta.

How many flights are there between Seattle and Washington, D.C. per day?

Each day, there are between 16 and 20 nonstop flights that take off from Seattle and land in Washington, D.C., with an average flight time of 5h 06m. The most common departure time is 8:00 a.m. and most flights take off in the morning, while the most flights land at Washington, D.C. Dulles Intl Airport. Each week, there are 129 flights. The most frequent day of departure is Friday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Seattle and Washington, D.C.?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Seattle to Washington, D.C. take?

A direct flight to Washington, D.C. will take on average 4h 49m to travel the 6,007 km flying distance from Seattle.

What’s the earliest departure time from Seattle to Washington, D.C.?

Early birds can take the earliest flight from Seattle at 7:35 am and will be landing in Washington, D.C. at 3:40 pm.

What’s the latest departure time from Seattle to Washington, D.C.?

If you prefer to fly at night, the latest flight from Seattle to Washington, D.C. jets off at 11:29 pm and lands at 7:28 am.

Good to know

Low season

January

High season

April

Cheapest flight

C$ 115
Best time to beat the crowds (36% less expensive on average)
Most popular time to fly (3% more expensive on average)
Flight from Seattle to Reagan Washington National Airport

When to book flights from Seattle to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Seattle to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Washington, D.C.

  • Does IAD have an on-site hotel?

    IAD has one on-site hotel. Referred to as Sleepbox Lounge, this hotel is between Gates A6 and A14, near the AeroTrain in Concourse A. You'll have a good rest at this hotel, as it features comfortable rooms.

  • Is there an on-site restaurant at DCA?

    If you're hungry, you can order food before exiting DCA, as this airport is full of restaurants. Some notable restaurants at this airport include Matsutake Sushi, American Tap Room, District Bar, Custom Burger, Cava Mezze Grill, and Grille District. If you just want snacks, you can visit the retail stores located throughout the airport.

  • Can I rent a car at BWI?

    If you want to rent a car once you disembark from your flight at BWI, you'll be able to do so. This is because BWI is connected to an off-site car rental facility that houses branches for reliable car rental agencies like Budget, Hertz, National, Alamo, Avis, Thrifty, and Enterprise. To board the shuttle, you'll use to travel to the airport's car rental facility, and head to the lower level of BWI's main terminal.

  • Does SEA have a children's play area?

    SEA has a children's play area. Located between the Central Terminal and Gates A, across from Seattle Taproom, this children's play area features several toys and soft playgrounds. Daily, it operates round-the-clock.

  • What is the cheapest flight from Seattle to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Seattle to Washington, D.C. was C$ 84 for a one-way ticket and C$ 244 for a round-trip.

  • Which airports will I be using when flying from Seattle to Washington, D.C.?

    On your way to Washington, D.C., you’ll fly out from Seattle/Tacoma Intl. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Washington, D.C.?

    Alaska Airlines, American Airlines, JetBlue, and Delta offer inflight Wi-Fi service on the Seattle to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Seattle to Washington, D.C.?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Seattle to Washington, D.C. flight route.

  • Which airline alliances offer flights from Seattle to Washington, D.C.?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and Washington, D.C., with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Washington, D.C.?

    There are direct flights from Seattle to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from Seattle to Washington, D.C., Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Washington, D.C. are Alaska Airlines and Delta. With an average price for the route of C$ 501 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 474 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Seattle to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Seattle to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 487 or less round-trip.
  • To travel from Seattle's city center to Seattle-Tacoma International Airport (SEA), you can board a King County Metro bus, a private taxi, or a LINK Light Rail train. You should board a taxi if you're in a rush, a metro bus if you'd like to travel cheaply, and a train if you want to balance speed and cost.
  • In case you need help at SEA, you'll be able to easily get it, as this airport features several staff members mandated with the responsibility of assisting passengers at the airport. Given that they all wear distinct blue vests, you'll be able to spot one without hassle.
  • If you've got time to spare, while waiting for your flight to Washington at SEA, you can enjoy relaxing spa services at the outstanding Terminal Gateway Spa. This spa, situated a short distance from gate A5, is normally open from 7 am to 10 pm. It features adequately experienced professionals, state-of-the-art spa equipment, and high-quality spa oils.
  • In Washington, you can land at Baltimore/Washington International Thurgood Marshall Airport (BWI), Dulles International Airport (IAD), or Ronald Reagan Washington National Airport (DCA). When booking your flight to Washington, you should book one that lands at DCA. This is because, among the three Washington airports, it is the closest to Washington's city center. Given that it also has the least passenger traffic, you won't encounter massive queues at DCA.
  • If you've traveled to Washington with your pet, you can let it relieve itself in one of DCA's designated pet relief areas once you land at the airport. These pet relief areas are opposite Doors 1 and 5 in Terminal A, opposite the South Metrorail station entrance in Terminal B, and across from the North Metrorail Station Entrance in Terminal C.
See more tips

Prefer to fly non-stop from Seattle to Washington, D.C.?

Find which airlines fly direct from Seattle/Tacoma Intl to Washington, D.C., which days they fly and book direct flights.

Nonstop departures

Seattle/Tacoma Intl to Washington, D.C.

Monday

ANA, Air Tahiti Nui, Alaska Airlines, +13 more

ANA, Air Tahiti Nui, +14 more

Tuesday

ANA, Air Tahiti Nui, Alaska Airlines, +15 more

ANA, Air Tahiti Nui, +16 more

Wednesday

ANA, Air Tahiti Nui, Alaska Airlines, +13 more

ANA, Air Tahiti Nui, +14 more

Thursday

ANA, Air Tahiti Nui, Alaska Airlines, +15 more

ANA, Air Tahiti Nui, +16 more

Friday

ANA, Air Tahiti Nui, Alaska Airlines, +14 more

ANA, Air Tahiti Nui, +15 more

Saturday

ANA, Air Tahiti Nui, Alaska Airlines, +15 more

ANA, Air Tahiti Nui, +16 more

Sunday

ANA, Air Tahiti Nui, Alaska Airlines, +14 more

ANA, Air Tahiti Nui, +15 more

See more nonstop flights

Nonstop returns

Washington, D.C. to Seattle/Tacoma Intl

Monday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Tuesday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Wednesday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Thursday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Friday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

Saturday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +13 more

Air Tahiti Nui, Alaska Airlines, +14 more

Sunday

Air Tahiti Nui, Alaska Airlines, Austrian Airlines, +12 more

Air Tahiti Nui, Alaska Airlines, +13 more

See more nonstop flights
See more nonstop flights

Top 4 airlines serving from Seattle to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9128 reviews
7.3Entertainment
8.6Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

The only issue was in the wheelchair waiting area before we got on the plane. They seemed very disorganized. Everyone we encountered after that was great! We loved Cassandra at check-in. She was awesome. The flight attendants were wonderful too! The lady helping with the waiting wheelchair when we got off the plane was awesome too!

10.0 ExcellentPeggy, May 2024SEA - EWR
Read more about Alaska Airlines reviews

The only issue was in the wheelchair waiting area before we got on the plane. They seemed very disorganized. Everyone we encountered after that was great! We loved Cassandra at check-in. She was awesome. The flight attendants were wonderful too! The lady helping with the waiting wheelchair when we got off the plane was awesome too!

Expect to get miles for us having to miss our first planned flight due to them waiting on passengers that decided to be late to the airport.

Up on arrival, due to twisted ankle, I wasn’t able to walk. Requested for a wheelchair. They immediately asked for it. After 10 minutes wait a young man named Carlos picked me up at the gate, got my baggage and took me to the pick up area. It was a great service. Thanks Alaska Air line

Once I was in my seat, it wasn't as comfortable. It was very tight (width wise).

Just a little delay in our takeoff but all was well and pleasant.

Command crew was excellent in handling dangerous flying conditions (weather).

I usually choose Alaska Airlines over any other airline. They try the hardest to make flying a great experience.

Staff being friendly would have help since the flight was delayed, again. Folks answered questions but no one seemed happy to be working today and if showed.

It was a full flight without any issues or stress. Really surprised with how so many flights seem to have issues nowadays.

Flight was good. Glad it was delayed or I may have missed the connection since I got to Seattle at about the same time my connection was to leave. The snack was a small bag of pretzels and a small soda. Can’t really call that food. There was no entertainment available on the flight.

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

The weather caused a delayed but I was impressed how United did everything they could to try to get us out which included bussing us to the plane doing a Hardstand and bringing us to the plane since the fog was too thick to tow the plane from the overnight stay in the cargo area.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Food was really good. Chicken curry delicious. Great service. Had 3 seats, what a pleasure. What about a healthier desert option on the dinner? Yogurt, fruit? Thankyou

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Book cheap flights from Seattle to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Washington, D.C. found on KAYAK in the last 72 hours.
5/6Wed
1 stopJetBlue
8h 11mSEA-DCA
C$ 115
25/5Sat
1 stopFrontier
8h 37mSEA-DCA
C$ 147
1/6Sat
1 stopSun Country Air
8h 37mSEA-IAD
C$ 186
4/6Tue
directAlaska Airlines
4h 59mSEA-IAD
C$ 188
28/5Tue
directAlaska Airlines
4h 59mSEA-IAD
C$ 189
28/5Tue
directDelta
5h 03mSEA-IAD
C$ 190
31/5Fri
1 stopSun Country Air
17h 48mSEA-IAD
C$ 195
8/6Sat
directDelta
5h 05mSEA-IAD
C$ 199
25/6Tue
directUnited Airlines
4h 59mSEA-IAD
C$ 267
5/6Wed
1 stopUnited Airlines
9h 17mSEA-IAD
C$ 270

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Last minute flights from Seattle to Washington, D.C.

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Washington, D.C. that are departing in the next 10 days.
4/5Sat
multi-stopSun Country Air
17h 27mSEA-IAD
9/5Thu
multi-stopSun Country Air
29h 45mIAD-SEA
C$ 692
4/5Sat
multi-stopSun Country Air
17h 27mSEA-IAD
9/5Thu
multi-stopSun Country Air
29h 45mIAD-SEA
C$ 719
4/5Sat
multi-stopSun Country Air
17h 27mSEA-IAD
9/5Thu
multi-stopSun Country Air
29h 45mIAD-SEA
C$ 733
8/5Wed
multi-stopDelta
7h 25mSEA-IAD
16/5Thu
directDelta
5h 45mIAD-SEA
C$ 818
8/5Wed
multi-stopUnited Airlines
13h 26mSEA-IAD
16/5Thu
directUnited Airlines
5h 48mIAD-SEA
C$ 837
8/5Wed
directAlaska Airlines
4h 56mSEA-IAD
21/5Tue
directAlaska Airlines
5h 30mIAD-SEA
C$ 840
8/5Wed
directAlaska Airlines
4h 56mSEA-IAD
18/5Sat
multi-stopAlaska Airlines
8h 54mIAD-SEA
C$ 852
4/5Sat
directDelta
4h 55mSEA-IAD
16/5Thu
directDelta
5h 45mIAD-SEA
C$ 887
7/5Tue
multi-stopJetBlue
12h 04mSEA-DCA
11/5Sat
multi-stopJetBlue
11h 21mDCA-SEA
C$ 904
8/5Wed
multi-stopUnited Airlines
16h 17mSEA-IAD
12/5Sun
directUnited Airlines
5h 48mIAD-SEA
C$ 961

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Seattle - Washington, D.C. Flights

Departure:

Seattle (SEA)United States

Cabin classes:

C$ 1,532
C$ 2,613
C$ 465

Browse origins:

  • Flights » 
  • Seattle