CA $169 Cheap Flights from Seattle (SEA) to Washington (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 $169 for one-way flights and CA $337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
JetBlue Airways
American Airlines
American Airlines
American Airlines
American Airlines
American Airlines
JetBlue Airways
JetBlue Airways
American Airlines
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, JetBlue Airways, United
Roundtrip price
CA $336
Distance
3715 km
Average flight time
8 hours 1 min

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, 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 $337 rising to CA $394.  

Here are more money-saving tips: 

  • Fly in April 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 to National Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey between Seattle - Tacoma Intl. Airport (SEA) and National Airport was CA $337. Great fares don’t stick around for long, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to DCA?
Every air carrier has its own set of terms and conditions. If you decide to cancel your trip, 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?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for SEA to National Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Sea-Tac Airport to Ronald Reagan Washington National Airport (DCA)?
Around 3,700 kilometers separates SeaTac and Arlington, so pack something to keep you occupied for a couple of hours. That latest bestseller you’ve yet to start will be ideal.
Which airlines fly direct from SEA to Ronald Reagan Washington National Airport (DCA)?
Flying nonstop from SEA to National Airport is easy with Alaska Airlines (AS). This top airline operates 60 flights every month.
Are SEA to National Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices from Seattle - Tacoma Intl. Airport (SEA) to DCA are available up to a year prior to departure on Expedia. And although you may nab a fantastic last-minute deal, it’s never something you can count on. Also, booking your flights well in advance means you’ll have more options — and you can avoid getting trapped in the dreaded middle seat! We frequently update our fares to bring you the biggest bargains, so check back often for all the latest specials.
Washington nearby Airports
Seattle nearby Airports

Seattle Paine Field Intl. Airport

*Available to Expedia members.