Question 1

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

Accepted Answer

The duration of a direct flight to Washington, D.C. from Seattle is typically 4h 55m. The journey crosses a distance of 6,007 km. Visit our flight page for the latest deals!>/a>

Question 2

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

Accepted Answer

Each day, there are between 9 and 12 nonstop flights that take off from Seattle and land in Washington, D.C., 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 morning, while the most flights land at Washington, D.C. Dulles Intl Airport. Each week, there are 78 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Tuesday. Visit our flight page for the latest deals!>/a>

Question 3

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

Accepted Answer

Each day, there are between 9 and 12 nonstop flights that take off from Seattle and land in Washington, D.C., 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 morning, while the most flights land at Washington, D.C. Dulles Intl Airport. Each week, there are 78 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Tuesday. Visit our flight page for the latest deals!>/a>

Question 4

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

Accepted Answer

In the last 3 days, the lowest price for a flight from Seattle to Washington, D.C. was C$ 188 for a one-way ticket and C$ 335 for a round-trip. <a href='/flight-routes/Seattle-Tacoma-Intl-SEA/Washington-D-C--WAS'>Visit our flight page for the latest deals!>/a>

Question 5

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

Accepted Answer

Seattle and Washington, D.C. are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (45 flights per week), United Airlines (19 flights per week), and Delta (14 flights per week). Visit our flight page for the latest deals!>/a>

Question 6

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

Accepted Answer

Seattle and Washington, D.C. are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (45 flights per week), United Airlines (19 flights per week), and Delta (14 flights per week). Visit our flight page for the latest deals!>/a>

Question 7

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

Accepted Answer

When flying from Seattle to Washington, D.C., you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Wednesdays. Visit our flight page for the latest deals!>/a>

Question 8

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

Accepted Answer

When flying from Seattle to Washington, D.C., you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Wednesdays. Visit our flight page for the latest deals!>/a>

Question 9

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

Accepted Answer

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. <a href='/flight-routes/Seattle-Tacoma-Intl-SEA/Washington-D-C--WAS'>Visit our flight page for the latest deals!>/a>

Question 10

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

Accepted Answer

Early birds can take the earliest flight from Seattle at 7:20 am and will be landing in Washington, D.C. at 3:30 pm.

Question 11

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

Accepted Answer

If you prefer to fly at night, the latest flight from Seattle to Washington, D.C. jets off at 11:30 pm and lands at 7:34 am.

Question 12

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

Accepted Answer

There are 2 airlines that fly direc from Seattle to Washington, D.C.. They are Alaska Airlines and Hawaiian Airlines. The cheapest airline for this route is Alaska Airlines, with the best round-trip deal found costing C$ 272. On average, the best prices for this route can be found at Hawaiian Airlines.

Question 13

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

Accepted Answer

There are 2 airlines that fly direc from Seattle to Washington, D.C.. They are Alaska Airlines and Hawaiian Airlines. The cheapest airline for this route is Alaska Airlines, with the best round-trip deal found costing C$ 272. On average, the best prices for this route can be found at Hawaiian Airlines.

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

The cheapest month for flights from Seattle to Washington, D.C. is January, where tickets cost C$ 135 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is C$ 1,651 and C$ 1,479 respectively.

Question 18

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

Accepted Answer

The cheapest month for flights from Seattle to Washington, D.C. is January, where tickets cost C$ 135 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is C$ 1,651 and C$ 1,479 respectively.

Question 19

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

Accepted Answer

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.. <a href='/flight-routes/Seattle-Tacoma-Intl-SEA/Washington-D-C--WAS'>Visit our flight page for the latest deals!>/a>

Question 20

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.?

Accepted Answer

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. <a href='/flight-routes/Seattle-Tacoma-Intl-SEA/Washington-D-C--WAS'>Visit our flight page for the latest deals!>/a>

Question 21

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

Accepted Answer

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. <a href='/flight-routes/Seattle-Tacoma-Intl-SEA/Washington-D-C--WAS'>Visit our flight page for the latest deals!>/a>

Question 22

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

Accepted Answer

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. <a href='/flight-routes/Seattle-Tacoma-Intl-SEA/Washington-D-C--WAS'>Visit our flight page for the latest deals!>/a>

Question 23

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

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 24

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

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 25

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

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Seattle to Washington, D.C. were found on Delta (C$ 335) and Frontier (C$ 337).

Question 26

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

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Seattle to Washington, D.C. were found on Delta (C$ 335) and Frontier (C$ 337).

Question 27

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

Accepted Answer

The cheapest return flight from Seattle to Washington, D.C. costs C$ 522 on the route between Seattle (SEA) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 59% cheaper than other Seattle-Washington, D.C. routes. The most popular route is between Seattle (SEA) and Baltimore (BWI).

Question 28

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

Accepted Answer

The cheapest return flight from Seattle to Washington, D.C. costs C$ 522 on the route between Seattle (SEA) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 59% cheaper than other Seattle-Washington, D.C. routes. The most popular route is between Seattle (SEA) and Baltimore (BWI).

Question 29

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

Accepted Answer

To get a below average price on the flight from Seattle to Washington, D.C., you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Question 30

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

Accepted Answer

To get a below average price on the flight from Seattle to Washington, D.C., you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Question 31

Can I save money by flying with a layover from Seattle to Washington, D.C.?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 409 on average.

Question 32

Can I save money by flying with a layover from Seattle to Washington, D.C.?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 409 on average.

Question 33

How much is a round-trip flight from Seattle to Washington, D.C.?

Accepted Answer

Flight prices are below average for this route right now.Flights to Washington, D.C. from Seattle usually cost between C$ 672 and C$ 403 in June.
The lowest price found in the past 3 days was C$ 335 on Delta (4 Jun-9 Jun).

Question 34

What are the most popular airlines flying to Washington, D.C.?

Accepted Answer

The most popular airline among KAYAK users flying to Washington, D.C. is Hawaiian Airlines, followed by Alaska Airlines.

Low season	January
High season	April
Cheapest flight	C$ 188

SEA - WAS

C$ 188 Find Cheap Flights from Seattle to Washington, D.C.

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Everything you should know

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

Recent round-trip flight deals from Seattle to Washington, D.C.

Recent one-way flight deals from Seattle to Washington, D.C.

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KAYAK's insights & trends for Seattle to Washington, D.C. flights

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.

How much is a round-trip flight from Seattle to Washington, D.C.?

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

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

When flying from Seattle to Washington, D.C., you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Wednesdays.

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

The cheapest month for flights from Seattle to Washington, D.C. is January, where tickets cost C$ 135 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is C$ 1,651 and C$ 1,479 respectively.

Can I save money by flying with a layover from Seattle to Washington, D.C.?

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 409 on average.

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

To get a below average price on the flight from Seattle to Washington, D.C., you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

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

In the past 3 days, the cheapest round-trip tickets from Seattle to Washington, D.C. were found on Delta (C$ 335) and Frontier (C$ 337).

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

Seattle and Washington, D.C. are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (45 flights per week), United Airlines (19 flights per week), and Delta (14 flights per week).

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

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

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

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

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

The duration of a direct flight to Washington, D.C. from Seattle is typically 4h 55m. The journey crosses a distance of 6,007 km.

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

Early birds can take the earliest flight from Seattle at 7:20 am and will be landing in Washington, D.C. at 3:30 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 11:30 pm and lands at 7:34 am.

Expert advice for your flight from Seattle to Washington, D.C.

Good to know

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

Flights from Seattle to Washington, D.C.: the best tips from KAYAK users' own experiences

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

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$ 188 for a one-way ticket and C$ 335 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, 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 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Seattle to Washington, D.C. flight 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.

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.

Prefer to fly direct from Seattle to Washington, D.C.?

Everything you need to know for your flight from Seattle to Washington, D.C.

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Cabin class types available on flights from Seattle to Washington, D.C.

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