£97 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 £97 for one-way flights and £243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Alaska Airlines
Alaska Airlines
JetBlue Airways
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
JetBlue Airways
Alaska Airlines
Flight from Seattle to Washington route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, JetBlue Airways
Return price
£242
Distance
3715 km

Compare flights from Seattle to Washington easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Washington. Operating between them 9 flights per day, 20 airlines cover the route. And JAL, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, Air Tahiti Nui, Korean Air fly direct, getting you to Ronald Reagan Washington National in just 11hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to Ronald Reagan Washington National.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to Ronald Reagan Washington National (DCA) 

The easiest way to view the best deals on flights from Seattle to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to Ronald Reagan Washington National start at just £243 and range up to £267.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seattle and Washington
  • booking your flight during July, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seattle to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to Ronald Reagan Washington National for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

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 £243. 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 kilometres 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.

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