CA $190 Cheap Flights from Seattle (SEA) to Washington (DCA)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Ronald Reagan National Airport (DCA)

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Cheap flights from Seattle (SEA) to Washington (DCA)

Prices were available within the past 7 days and start at CA $190 for one-way flights and CA $376 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Delta
Alaska Airlines
American Airlines
Alaska Airlines
Delta
Alaska Airlines
Delta
Hawaiian Airlines
JetBlue Airways

Find the cheapest month to fly from Seattle (SEA) to Washington (DCA)

September is typically the cheapest month to fly

From CA $189 - CA $359 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Washington (SEA - DCA) route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, JetBlue Airways, United
Roundtrip price
CA $376
Distance
3715 km
Average flight time
8 hours 6 mins

Seattle to Washington Flights

The easy way to book your flights from Seattle to Washington 

With Expedia, it’s simple to find and book flights to Washington from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are JAL, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, Korean Air, Air Tahiti Nui nonstop flights to Ronald Reagan Washington National, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Washington today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Ronald Reagan Washington National, DCA 

Sort your search results by price to find great deals on your flight from Seattle to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Seattle currently is just CA $376 rising to CA $506.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Washington  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Washington from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Washington with Expedia today.

Frequently asked questions

How much is a flight from Sea-Tac Airport to National Airport?
The lowest price advertised for a round-trip flight from Sea-Tac Airport to Ronald Reagan Washington National Airport (DCA) is CA $376. But you better act quick. This figure is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to National Airport?
Each air carrier has its own terms and conditions. If you decide to cancel your escape, visit our Customer Service Portal.
How do I find cheap flights from Sea-Tac Airport to Ronald Reagan Washington National Airport (DCA) that have flexible change policies?
Plenty of carriers offer the option to move your flight at no extra charge. All you pay is the fare difference. When looking for Seattle - Tacoma Intl. Airport (SEA) to National Airport flights, you'll see a "No change fees" filter for you to tick.
How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to Ronald Reagan Washington National Airport (DCA)?
The flight time from Sea-Tac Airport to National Airport is roughly 6 hours and 44 minutes. Put your headphones on, listen to your favourite podcast and the time will whiz by.
How far is the flight from SEA to Ronald Reagan Washington National Airport (DCA)?
The flight distance from SeaTac to Arlington is 3,700 kilometres. Bring along a drink, some snacks and a good book to read. Keep yourself entertained and the hours will zip by.
Which airlines fly direct from SEA to Ronald Reagan Washington National Airport (DCA)?
Flying straight from Sea-Tac Airport to Ronald Reagan Washington National Airport (DCA) is simple with Alaska Airlines (AS). This leading airline offers 60 flights every month.
Are SEA to Ronald Reagan Washington National Airport (DCA) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Sea-Tac Airport to National Airport can be hit-or-miss. It is possible to find a bargain, but then again, you could miss out altogether! If you'd prefer to play it safe and start planning early on, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines list their prices so far in advance. Our suggestion? Check back often as updates are made regularly.

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