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Cheap flights from Seattle to Washington, D.C. Reagan-National Airport from $73

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Washington, D.C. Reagan-National Airport departing on 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Washington, D.C.

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Washington, D.C..

Cheap last minute flights

Planning a quick getaway from Seattle to Washington, D.C.? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Washington, D.C., so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Washington, D.C.

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All round-trip flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
3:15 pm - 12:01 pmSEA-DCA
17h 46m1 stop
1:01 pm - 3:35 pmDCA-SEA
29h 34m1 stop
$133Frontier
Find Deal
Thu, Jan 9 - Wed, Jan 15
3:15 pm - 12:01 pmSEA-DCA
17h 46m1 stop
7:00 am - 2:19 pmDCA-SEA
10h 19m1 stop
$136Frontier
Find Deal
Thu, Jan 9 - Mon, Jan 13
11:48 pm - 11:44 amSEA-DCA
8h 56m1 stop
4:15 pm - 10:38 pmDCA-SEA
9h 23m1 stop
$269JetBlue
Find Deal
Tue, Mar 11 - Wed, Mar 19
7:20 am - 8:39 pmSEA-DCA
10h 19m1 stop
6:59 am - 12:34 pmDCA-SEA
8h 35m1 stop
$290American Airlines
Find Deal
Sat, Mar 1 - Wed, Mar 5
5:22 am - 4:29 pmSEA-DCA
8h 07m1 stop
6:38 am - 12:41 pmDCA-SEA
9h 03m1 stop
$296American Airlines
Find Deal
Wed, Jan 8 - Sat, Jan 11
6:10 am - 8:48 pmSEA-DCA
11h 38m2 stops
4:13 pm - 9:11 pmDCA-SEA
7h 58m1 stop
$311United Airlines
Find Deal
Fri, Jan 10 - Mon, Jan 13
11:55 pm - 9:23 amSEA-DCA
6h 28m1 stop
3:30 pm - 10:46 pmDCA-SEA
10h 16m1 stop
$314United Airlines
Find Deal
Sat, Dec 14 - Mon, Dec 16
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
8:00 am - 11:04 amDCA-SEA
6h 04mnonstop
$317Alaska Airlines
Find Deal
Wed, Jan 8 - Sat, Jan 11
11:17 pm - 11:35 amSEA-DCA
9h 18m1 stop
4:15 pm - 10:38 pmDCA-SEA
9h 23m1 stop
$330JetBlue
Find Deal
Thu, Feb 20 - Fri, Feb 28
8:24 am - 4:29 pmSEA-DCA
5h 05mnonstop
5:29 pm - 8:35 pmDCA-SEA
6h 06mnonstop
$338Alaska Airlines
Find Deal
Thu, Jan 9 - Wed, Jan 15
3:15 pm - 12:01 pmSEA-DCA
17h 46m1 stop
$73Frontier
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Mon, Jan 13
3:15 pm - 12:01 pmSEA-DCA
17h 46m1 stop
$75Frontier
Find Deal
Thu, Jan 9
11:55 pm - 9:23 amSEA-DCA
6h 28m1 stop
$148United Airlines
Find Deal
Sat, Dec 14
12:15 am - 10:55 amSEA-DCA
7h 40m1 stop
$153American Airlines
Find Deal
Sun, Dec 15
4:58 pm - 9:20 amSEA-DCA
13h 22m2 stops
$158United Airlines
Find Deal
Mon, Feb 24
1:59 pm - 9:59 pmSEA-DCA
5h 00mnonstop
$159Alaska Airlines
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Wed, Dec 25
12:15 am - 10:55 amSEA-DCA
7h 40m1 stop
$178American Airlines
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Thu, Dec 12
8:20 am - 4:27 pmSEA-DCA
5h 07mnonstop
$199Alaska Airlines
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Tue, Feb 18
6:15 am - 10:10 pmSEA-DCA
12h 55m2 stops
$242Delta
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Wed, Dec 18
12:50 am - 11:05 amSEA-DCA
7h 15m1 stop
$278Delta
Find Deal
Sat, Dec 7
12:10 pm - 12:06 pmSEA-DCA
20h 56m1 stop
7:00 am - 11:29 amDCA-SEA
31h 29m1 stop
$334Frontier
Find Deal
Fri, Nov 22 - Sat, Dec 7
8:41 am - 12:06 pmSEA-DCA
24h 25m1 stop
6:00 pm - 8:19 amDCA-SEA
17h 19m1 stop
$378Frontier
Find Deal
Sat, Nov 23 - Mon, Nov 25
12:55 am - 11:00 amSEA-DCA
7h 05m1 stop
5:10 pm - 12:15 amDCA-SEA
10h 05m1 stop
$676Delta
Find Deal
Tue, Nov 26 - Tue, Dec 3
12:25 am - 10:54 amSEA-DCA
7h 29m1 stop
4:40 pm - 10:05 pmDCA-SEA
8h 25m1 stop
$762American Airlines
Find Deal
Sun, Nov 24 - Wed, Nov 27
8:30 am - 9:59 pmSEA-DCA
10h 29m2 stops
2:00 pm - 6:54 pmDCA-SEA
7h 54m1 stop
$767United Airlines
Find Deal
Mon, Nov 25 - Wed, Nov 27
12:55 am - 11:00 amSEA-DCA
7h 05m1 stop
5:10 pm - 12:15 amDCA-SEA
10h 05m1 stop
$802Delta
Find Deal
Fri, Nov 22 - Tue, Dec 3
7:11 pm - 8:25 amSEA-DCA
10h 14m2 stops
6:00 am - 12:43 pmDCA-SEA
9h 43m1 stop
$849United Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
9:14 am - 8:59 pmSEA-DCA
8h 45m1 stop
5:20 pm - 8:29 pmDCA-SEA
6h 09mnonstop
$931Alaska Airlines
Find Deal
Fri, Nov 22 - Sat, Dec 7
7:00 am - 8:59 pmSEA-DCA
10h 59m1 stop
9:20 am - 6:03 amDCA-SEA
23h 43m2 stops
$1,066Alaska Airlines
Find Deal
Fri, Nov 22 - Sat, Dec 7
1:16 am - 12:17 pmSEA-DCA
8h 01m1 stop
7:54 am - 2:55 pmDCA-SEA
10h 01m1 stop
$1,166American Airlines
Find Deal
Tue, Nov 26 - Sun, Dec 1
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
8:00 am - 11:04 amDCA-SEA
6h 04mnonstop
$317Alaska Airlines
Find Deal
Wed, Jan 8 - Sat, Jan 11
8:24 am - 4:29 pmSEA-DCA
5h 05mnonstop
5:29 pm - 8:35 pmDCA-SEA
6h 06mnonstop
$338Alaska Airlines
Find Deal
Thu, Jan 9 - Wed, Jan 15
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
5:29 pm - 8:35 pmDCA-SEA
6h 06mnonstop
$358Alaska Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
5:30 pm - 8:30 pmDCA-SEA
6h 00mnonstop
$359Alaska Airlines
Find Deal
Sat, Mar 15 - Mon, Mar 24
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
8:00 am - 11:04 amDCA-SEA
6h 04mnonstop
$378Alaska Airlines
Find Deal
Tue, Jan 7 - Sun, Jan 12
8:20 am - 4:27 pmSEA-DCA
5h 07mnonstop
5:30 pm - 8:30 pmDCA-SEA
6h 00mnonstop
$398Alaska Airlines
Find Deal
Fri, Mar 14 - Sat, Mar 22
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
5:29 pm - 8:35 pmDCA-SEA
6h 06mnonstop
$408Alaska Airlines
Find Deal
Sun, Jan 12 - Wed, Jan 15
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
8:00 am - 11:00 amDCA-SEA
6h 00mnonstop
$409Alaska Airlines
Find Deal
Tue, Mar 11 - Sun, Mar 23
2:05 pm - 9:59 pmSEA-DCA
4h 54mnonstop
5:25 pm - 8:35 pmDCA-SEA
6h 10mnonstop
$428Alaska Airlines
Find Deal
Thu, Feb 20 - Sun, Feb 23
1:55 pm - 9:59 pmSEA-DCA
5h 04mnonstop
5:29 pm - 8:35 pmDCA-SEA
6h 06mnonstop
$438Alaska Airlines
Find Deal
Thu, Dec 5 - Tue, Jan 7

Frontier flights from Seattle to Washington, D.C. Reagan-National Airport

Our best Frontier deals on Seattle to Washington, D.C. Reagan-National Airport flight tickets
Frontier
Jan 9
SEA3:15 pmSeattle/Tacoma Intl
17h 46m
1 stop
DCA12:01 pmWashington, D.C. Reagan-National
Jan 15
DCA1:01 pmWashington, D.C. Reagan-National
29h 34m
1 stop
SEA3:35 pmSeattle/Tacoma Intl
Frontier
Jan 9
SEA3:15 pmSeattle/Tacoma Intl
17h 46m
1 stop
DCA12:01 pmWashington, D.C. Reagan-National
Jan 13
DCA7:00 amWashington, D.C. Reagan-National
10h 19m
1 stop
SEA2:19 pmSeattle/Tacoma Intl
Frontier
Jan 9
SEA3:15 pmSeattle/Tacoma Intl
17h 46m
1 stop
DCA12:01 pmWashington, D.C. Reagan-National
Jan 13
DCA7:00 amWashington, D.C. Reagan-National
10h 19m
1 stop
SEA2:19 pmSeattle/Tacoma Intl

JetBlue flights from Seattle to Washington, D.C. Reagan-National Airport

Our best JetBlue deals on Seattle to Washington, D.C. Reagan-National Airport flight tickets
JetBlue
Mar 11
SEA11:48 pmSeattle/Tacoma Intl
8h 56m
1 stop
DCA11:44 amWashington, D.C. Reagan-National
Mar 19
DCA4:15 pmWashington, D.C. Reagan-National
9h 23m
1 stop
SEA10:38 pmSeattle/Tacoma Intl
JetBlue
Feb 20
SEA11:17 pmSeattle/Tacoma Intl
9h 18m
1 stop
DCA11:35 amWashington, D.C. Reagan-National
Feb 28
DCA4:15 pmWashington, D.C. Reagan-National
9h 23m
1 stop
SEA10:38 pmSeattle/Tacoma Intl
JetBlue
Jan 11
SEA3:20 pmSeattle/Tacoma Intl
15h 26m
1 stop
DCA9:46 amWashington, D.C. Reagan-National
Jan 18
DCA3:00 pmWashington, D.C. Reagan-National
26h 10m
1 stop
SEA2:10 pmSeattle/Tacoma Intl

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Seattle to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

January. The cheapest time of year to fly to Washington, D.C. Reagan-National Airport from Seattle is January. Most expensive is June

What is the cheapest day to depart Seattle for Washington, D.C. Reagan-National Airport?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Seattle to Washington, D.C. Reagan-National Airport?

In the afternoon. Seattle to Washington, D.C. Reagan-National Airport flights are approximately 38% more expensive at noon than in the afternoon

How far in advance should you book Seattle to Washington, D.C. Reagan-National Airport flights?

16 days before. The cheapest time to buy a flight from Seattle to Washington, D.C. Reagan-National Airport is approximately 16 days to departure

Can stopping save me money on Seattle to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 54% on your flight if you consider stops on a Seattle to Washington, D.C. Reagan-National Airport flight.

How have Seattle to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of November 2024, prices for Seattle to Washington, D.C. Reagan-National Airport flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Washington, D.C. Reagan-National Airport (SEA to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Washington, D.C. Reagan-National Airport

Best Price Found

$73

Fastest flight time

4h 54m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Seattle in the past 72 hours is $73. The best round-trip flight deal from Seattle to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $133.
The fastest flight from Seattle to Washington, D.C. Reagan-National Airport takes 4h 54m
Direct flights go from Seattle to Washington, D.C. Reagan-National Airport every day.

  • How far is Seattle/Tacoma Intl to Washington, D.C. Reagan-National by plane?

    A flight from Seattle/Tacoma Intl to Washington, D.C. Reagan-National will travel around 2322.2 mi. A reasonable flight in good conditions will take 4h 54m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Washington, D.C. Reagan-National Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Washington, D.C. Reagan-National Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Washington, D.C. Reagan-National Airport?

  • What is the most popular airline from Seattle to Washington, D.C. Reagan-National Airport?


Best airlines flying from Seattle to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Seattle to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $135Free CancellationRating
6.1
3,539 reviews
Search Frontier flights
JetBluePriceFrom $248Free CancellationRating
7.4
3,396 reviews
Search JetBlue flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
DeltaPriceFrom $307Free CancellationRating
8.0
8,758 reviews
Search Delta flights
Alaska AirlinesPriceFrom $382Free CancellationRating
8.0
9,458 reviews
Search Alaska Airlines flights
  • Alaska Airlines Flights From Seattle to Washington, D.C. Reagan-National Airport

    The lowest priced Alaska Airlines flight from Seattle to Washington, D.C. Reagan-National Airport from the last 72 hours was $382. Generally, Alaska Airlines has 3 flights on this route every week with an average price of $598. Alaska Airlines is rated 8.0/10 by our users.


Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Washington, D.C.?

It is quick and easy to find Seattle to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Seattle to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Washington, D.C.?

momondo helps you find the best flight between Seattle and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Seattle and alert you when they change.


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