CA $158 Cheap Flights from Washington (DCA) to Seattle (SEA)

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

Prices were available within the past 7 days and start at CA $158 for one-way flights and CA $305 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
American Airlines
Frontier Airlines
American Airlines
American Airlines
Frontier Airlines
Flight from Washington to Seattle (DCA - SEA) route information
Origin airport
Ronald Reagan Washington National
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, United
Roundtrip price
CA $304
Distance
3715 km
Average flight time
2 hours 51 mins

Washington to Seattle Flights

The easy way to book your flights from Washington to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Washington 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, Air Tahiti Nui, Korean Air nonstop flights to Seattle - Tacoma Intl., 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 Washington to Seattle today, tomorrow, or this week.  

 

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

Sort your search results by price to find great deals on your flight from Washington to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Washington currently is just CA $305 rising to CA $423.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • 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 Seattle from Washington 

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 Seattle with Expedia today.

Frequently asked questions

How much is a flight from Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA)?
Round-trip flights from National Airport to Sea-Tac Airport start from CA $305. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from National Airport to Sea-Tac Airport?
The majority of flights can be conveniently canceled online, but whether or not you incur a fee varies between airlines. If you do have to cancel your getaway, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport 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 Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from DCA to Sea-Tac Airport?
It’s around 3,700 kilometers from Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA), so you’ll be strapped into your seat for a while. Keep yourself entertained with things like your e-reader or the latest bestseller.
Which airlines fly direct from National Airport to Seattle - Tacoma Intl. Airport (SEA)?
Check out the fares with Alaska Airlines (AS) if you want to fly straight from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport. This popular carrier operates 60 flights monthly, so you’re sure to find one that suits your schedule.
Are Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes score a bargain, with some of the cheapest airfares from Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA) showing up a few weeks before the date of departure. If you’d rather book ahead, Expedia compares and updates the best flight deals continually — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines advertise prices that far in advance.
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