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SEA - DCA

C$ 158 Find cheap flights from Seattle to Reagan Washington National Airport

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 29/5. 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
Sat 8/6
Sat 15/6

Search hundreds of travel sites at once for deals on flights to Reagan Washington National Airport

 
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 43,968,530 times on KAYAK, and here is why:

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

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
9:37 a.m. - 12:09 p.m.SEA-DCA
23h 32m1 stop
12:59 p.m. - 8:37 a.m.DCA-SEA
22h 38m1 stop
C$ 365Frontier
Find Deal
Tue, 20 Aug - Sun, 25 Aug
10:26 p.m. - 12:07 p.m.SEA-DCA
10h 41m1 stop
12:59 p.m. - 9:50 p.m.DCA-SEA
11h 51m1 stop
C$ 481Frontier
Find Deal
Sat, 29 Jun - Fri, 5 Jul
8:40 p.m. - 10:43 a.m.SEA-DCA
11h 03m1 stop
11:30 a.m. - 7:20 p.m.DCA-SEA
10h 50m1 stop
C$ 497JetBlue
Find Deal
Wed, 12 Jun - Mon, 17 Jun
11:47 p.m. - 10:39 a.m.SEA-DCA
7h 52m1 stop
3:00 p.m. - 9:09 p.m.DCA-SEA
9h 09m1 stop
C$ 561United Airlines
Find Deal
Wed, 3 Jul - Mon, 8 Jul
12:30 a.m. - 10:39 a.m.SEA-DCA
7h 09m1 stop
3:00 p.m. - 9:09 p.m.DCA-SEA
9h 09m1 stop
C$ 607United Airlines
Find Deal
Tue, 2 Jul - Mon, 8 Jul
8:50 p.m. - 10:43 a.m.SEA-DCA
10h 53m1 stop
1:05 p.m. - 7:20 p.m.DCA-SEA
9h 15m1 stop
C$ 609JetBlue
Find Deal
Sun, 16 Jun - Mon, 17 Jun
1:47 p.m. - 9:59 p.m.SEA-DCA
5h 12mdirect
9:30 a.m. - 9:58 a.m.DCA-SEA
27h 28m1 stop
C$ 644Alaska Airlines
Find Deal
Wed, 29 May - Fri, 31 May
8:32 a.m. - 4:45 p.m.SEA-DCA
5h 13mdirect
5:45 p.m. - 8:28 p.m.DCA-SEA
5h 43mdirect
C$ 655Alaska Airlines
Find Deal
Wed, 29 May - Tue, 4 Jun
9:45 p.m. - 8:54 a.m.SEA-DCA
8h 09m1 stop
6:05 a.m. - 10:31 a.m.DCA-SEA
7h 26m1 stop
C$ 723Delta
Find Deal
Fri, 28 Jun - Tue, 9 Jul
12:30 a.m. - 10:25 a.m.SEA-DCA
6h 55m1 stop
10:00 a.m. - 2:12 p.m.DCA-SEA
7h 12m1 stop
C$ 736Delta
Find Deal
Mon, 26 Aug - Mon, 23 Sep

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 month to fly from Seattle to Washington, D.C. Reagan-National Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Washington, D.C. Reagan-National Airport, 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. Reagan-National Airport is September, where tickets cost C$ 558 on average. On the other hand, the most expensive months are June and December, where the average cost of tickets is C$ 888 and C$ 848 respectively.

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

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. Reagan-National Airport, 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. Reagan-National Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 43 days before departure.

Which airlines provide the cheapest flights from Seattle to Reagan Washington National Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, JetBlue offered the best one-way deal for that route, at C$ 158. KAYAK users also found Seattle to Reagan Washington National Airport round-trip flights on Frontier from C$ 365 and on JetBlue from C$ 497.

Which airlines fly direct between Seattle and Washington, D.C. Reagan-National Airport?

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. Reagan-National Airport.
There is just one airline that flies from Seattle to Washington, D.C. Reagan-National Airport direct and that is Alaska Airlines. The best one-way deal found from Alaska Airlines for the route is C$ 563.

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

Each day, there are 4 nonstop flights that take off from Seattle and land in Washington, D.C. Reagan-National Airport, with an average flight time of 5h 12m. The most common departure time is 8:00 a.m. and most flights take off in the afternoon. Each week, there are 28 flights and there are the same amount of flights each day 4.

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

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is 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 Reagan Washington National Airport take?

The duration of a direct flight to Reagan Washington National Airport from Seattle is typically 5h 02m. The journey crosses a distance of 6,012 km.

What’s the earliest departure time from Seattle to Reagan Washington National Airport?

Early birds can take the earliest flight from Seattle at 8:32 am and will be landing in Washington, D.C. Reagan-National Airport at 4:45 pm.

What’s the latest departure time from Seattle to Reagan Washington National Airport?

If you prefer to fly at night, the latest flight from Seattle to Washington, D.C. Reagan-National Airport jets off at 1:54 pm and lands at 9:59 pm.

Good to know

Low season

January

High season

April

Cheapest flight

C$ 158
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 0% lower 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 Seattle to Reagan Washington National Airport flights

  • How far is Reagan National Airport from the White House and National Mall?

    Reagan National Airport is roughly 3 miles from the two destinations. A typical taxi journey might deliver you to your destination in 5-10 minutes. It is also convenient to take the metro into the city center, although given how close the airport is, a taxi may be the better alternative.

  • What is there to do at Seattle-Tacoma International Airport?

    Sea-Tac Airport offers passengers more eye candy than duty-free shops with its artistic offerings. The airport has an inspiring collection of art pieces by international and local artists not to mention sculptures, paintings, and rotating exhibits that transform its terminals into museum hallways. Feast your eyes on Concourses B, A, D, C, N, and the Baggage Claim Area. The Airport’s Art Walk, half a mile long, is also a good alternative for those looking to stretch before jetting off.

  • Does SEA offer any services for travelers with pets?

    There are a variety of pet relief spots provided throughout Seattle Tacoma International Airport (SEA) for travelers who are flying with pets. Outside the main terminal, there are two relief stations, and three are placed inside the airport. North Satellite, South Satellite, and Concourse B all host inside pet relief spaces.

  • What are the transport options from DCA to the city center?

    The Metropolitan Center of Washington D.C. is close to DCA, making access fast and easy via the blue and yellow metro system lines. If you wish to get there faster, taxis are available although you may have to pay more.

  • What is the cheapest flight from Seattle to Washington, D.C. Reagan-National Airport?

    In the last 3 days, the lowest price for a flight from Seattle to Washington, D.C. Reagan-National Airport was C$ 115 for a one-way ticket and C$ 266 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Reagan Washington National Airport?

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

  • Which aircraft models fly most regularly from Seattle to Reagan Washington National Airport?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Seattle to Reagan Washington National Airport flight route.

  • Which airline alliances offer flights from Seattle to Reagan Washington National Airport?

    oneworld, and SkyTeam are the airline alliances operating flights between Seattle and Reagan Washington National Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Reagan Washington National Airport?

    There are direct flights from Seattle to Reagan Washington National Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to Reagan Washington National Airport?

    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 Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Reagan Washington National Airport?

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

  • What is the Hacker Fare option on flights from Seattle to Reagan Washington National Airport?

    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 Reagan Washington National Airport 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 Reagan Washington National Airport?

    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 Reagan Washington National Airport 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.

  • If you are looking to be environmentally friendly in your journey, book flights from Seattle to Reagan Washington National Airport (DCA) with layovers. Roughly 1,721 kg of carbon is released per individual on these flights. Eco-friendlier trips are handled by United Airlines and American Airlines which emit 21% and 20% less carbon respectively.
  • Reagan National Airport (DCA) ensures universal access to all public facilities and services at the airport if you require accessible services. The terminal has elevators, and the parking lot is also accessible. If you require wheelchair assistance during your journey or upon arrival, please notify your airline ahead of time to ensure that the required assistance is provided when you deplane at DCA.
  • If you have any inquiries related to Sea-Tac Airport (SEA) or need assistance finding your gate, keep an eye out for airport personnel sporting bright blue vests. These volunteers are positioned around each terminal and are eager to answer any questions you may have regarding the airport's services and flights.
  • For passengers taking their bikes to Sea-Tac Airport, there is a bike facility on the premises equipped with complimentary pumps and tools, making assembling and dismantling your bike an instant process before your voyage. Long-term and day storage services are available at the Artirum between baggage claim carousel 2 and door 4 or the baggage claim near Gates C and D.
  • Although Washington D.C is served by two airports, Dulles International Airport (IAD) and Ronald Reagan Washington National Airport, DCA is a better alternative. The airport is closer and a major gateway for domestic flights to D.C.
See more tips

Prefer to fly non-stop from Seattle to Reagan Washington National Airport?

Find which airlines fly direct from Seattle/Tacoma Intl to Reagan-National, which days they fly and book direct flights.

Nonstop departures

Seattle/Tacoma Intl to Washington, D.C. Reagan-National

Monday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Tuesday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Wednesday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Thursday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Friday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Saturday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Sunday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

See more nonstop flights

Nonstop returns

Washington, D.C. Reagan-National to Seattle/Tacoma Intl

Monday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Tuesday

Air Tahiti Nui, Alaska Airlines, Finnair, +2 more

Air Tahiti Nui, Alaska Airlines, +3 more

Wednesday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Thursday

Air Tahiti Nui, Alaska Airlines, Finnair, +2 more

Air Tahiti Nui, Alaska Airlines, +3 more

Friday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

Saturday

Air Tahiti Nui, Alaska Airlines, Finnair, +2 more

Air Tahiti Nui, Alaska Airlines, +3 more

Sunday

Air Tahiti Nui, Alaska Airlines, Japan Airlines, +1 more

Air Tahiti Nui, Alaska Airlines, +2 more

See more nonstop flights
See more nonstop flights

Top airline flying 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 9140 reviews
7.9Comfort
7.3Entertainment
8.2Boarding
7.3Food
8.6Crew
Airline reviews

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

2.0 MediocreAnonymous, May 2024SEA - LAX
Read more about Alaska Airlines reviews

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Delayed an hour and sat without updates. Ended up an hour late to destination

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

It was fine since it ensure we went to our destination in time.

I bought the cheapest ticket. No meal, no checked luggage so I didn't expect much and was surprised by how good the flight and service was. Alaska is now my favorite airline.

No entertainment, food was cookies & juice,water, soda or coffee.

My baggage was in another flight, anit was delayed for one hour.

The maintenance delay was seemingly handled very poorly... Little to no information was provided to the passengers sitting on board for an extended period of time. On a brighter note, at least the cabin crew (flight attendants) did the best they could. They seemingly were provided very little information with regards to the delay. Unless absolutely beyond my control, I can’t imagine buying a ticket on Alaska airlines again, based on this and a previous experience my wife recently had, along with complaints overheard from other passengers.

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.
29/5Wed
1 stopJetBlue
11h 01mSEA-DCA
C$ 158
17/6Mon
1 stopJetBlue
11h 45mSEA-DCA
C$ 166
20/5Mon
1 stopFrontier
9h 19mSEA-DCA
C$ 184
16/8Fri
1 stopUnited Airlines
8h 09mSEA-DCA
C$ 280
29/5Wed
2 stopsAlaska Airlines
30h 33mSEA-DCA
C$ 305
17/7Wed
1 stopUnited Airlines
7h 09mSEA-DCA
C$ 327
29/5Wed
directAlaska Airlines
5h 13mSEA-DCA
C$ 328
4/9Wed
2 stopsUnited Airlines
25h 07mSEA-DCA
C$ 335
3/6Mon
1 stopDelta
6h 51mSEA-DCA
C$ 361
16/6Sun
1 stopDelta
6h 48mSEA-DCA
C$ 368

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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.
13/5Mon
multi-stopJetBlue
12h 04mSEA-DCA
15/5Wed
multi-stopJetBlue
11h 00mDCA-SEA
C$ 877
11/5Sat
multi-stopDelta
6h 51mSEA-DCA
15/5Wed
multi-stopDelta
9h 19mDCA-SEA
C$ 933
11/5Sat
multi-stopDelta
6h 51mSEA-DCA
12/5Sun
multi-stopDelta
10h 19mDCA-SEA
C$ 970
12/5Sun
multi-stopAmerican Airlines
8h 00mSEA-DCA
16/5Thu
multi-stopAmerican Airlines
9h 26mDCA-SEA
C$ 998
12/5Sun
multi-stopAmerican Airlines
14h 24mSEA-DCA
15/5Wed
multi-stopAmerican Airlines
8h 37mDCA-SEA
C$ 1,003
11/5Sat
multi-stopAmerican Airlines
10h 29mSEA-DCA
15/5Wed
multi-stopAmerican Airlines
10h 33mDCA-SEA
C$ 1,004
10/5Fri
multi-stopUnited Airlines
13h 02mSEA-DCA
13/5Mon
multi-stopUnited Airlines
9h 45mDCA-SEA
C$ 1,211
9/5Thu
multi-stopUnited Airlines
13h 02mSEA-DCA
12/5Sun
multi-stopUnited Airlines
9h 58mDCA-SEA
C$ 1,382
12/5Sun
directAlaska Airlines
5h 07mSEA-DCA
15/5Wed
directAlaska Airlines
5h 50mDCA-SEA
C$ 1,561
9/5Thu
directAlaska Airlines
5h 07mSEA-DCA
16/5Thu
multi-stopAlaska Airlines
10h 42mDCA-SEA
C$ 1,641

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Seattle - Reagan Washington National Airport Flights

Departure:

Seattle (undefined)United States

Destination:

Reagan Washington National Airport (DCA)United States

Return flight deals:

Reagan Washington National Airport - Seattle

Cabin classes:

C$ 833

Browse origins:

  • Flights » 
  • Seattle

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Washington, D.C. » 
  • Reagan Washington National Airport