Cheap Flights From Ronald Reagan Washington National (DCA) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Washington (DCA) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $385 round trip and CA $210 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Nov. 16 - Tue, Nov. 25
DCA
Washington
SEA
Seattle
CA $385 Roundtrip, found 23 hours ago
CA $385
Roundtrip
found 23 hours ago
Select Hawaiian Airlines flight, departing Sun, Nov. 16 from Washington to Seattle, returning Tue, Nov. 25, priced at CA $385 found 23 hours ago
Sat, Nov. 15 - Tue, Nov. 18
DCA
Washington
SEA
Seattle
CA $412 Roundtrip, found 1 day ago
CA $412
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Nov. 15 from Washington to Seattle, returning Tue, Nov. 18, priced at CA $412 found 1 day ago
Sat, Nov. 15 - Tue, Nov. 18
DCA
Washington
SEA
Seattle
CA $425 Roundtrip, found 1 day ago
CA $425
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Nov. 15 from Washington to Seattle, returning Tue, Nov. 18, priced at CA $425 found 1 day ago
Sat, Nov. 8 - Tue, Nov. 11
DCA
Washington
SEA
Seattle
CA $440 Roundtrip, found 1 day ago
CA $440
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Nov. 8 from Washington to Seattle, returning Tue, Nov. 11, priced at CA $440 found 1 day ago
Mon, Sep. 22 - Tue, Sep. 30
DCA
Washington
SEA
Seattle
CA $447 Roundtrip, just found
CA $447
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Sep. 22 from Washington to Seattle, returning Tue, Sep. 30, priced at CA $447 just found
Sat, Nov. 8 - Tue, Nov. 11
DCA
Washington
SEA
Seattle
CA $454 Roundtrip, found 1 day ago
CA $454
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Nov. 8 from Washington to Seattle, returning Tue, Nov. 11, priced at CA $454 found 1 day ago
Sat, Nov. 15 - Tue, Nov. 18
DCA
Washington
SEA
Seattle
CA $455 Roundtrip, found 1 day ago
CA $455
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov. 15 from Washington to Seattle, returning Tue, Nov. 18, priced at CA $455 found 1 day ago
Mon, Sep. 22 - Tue, Sep. 30
DCA
Washington
SEA
Seattle
CA $461 Roundtrip, found 15 hours ago
CA $461
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Mon, Sep. 22 from Washington to Seattle, returning Tue, Sep. 30, priced at CA $461 found 15 hours ago
Sat, Nov. 8 - Tue, Nov. 11
DCA
Washington
SEA
Seattle
CA $467 Roundtrip, found 1 day ago
CA $467
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Nov. 8 from Washington to Seattle, returning Tue, Nov. 11, priced at CA $467 found 1 day ago
Tue, Jan. 13 - Tue, Jan. 20
DCA
Washington
SEA
Seattle
CA $469 Roundtrip, found 2 days ago
CA $469
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Jan. 13 from Washington to Seattle, returning Tue, Jan. 20, priced at CA $469 found 2 days ago

Frequently asked questions

Are there direct flights from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport?
Wander wisely and get your hands on a direct flight from National Airport to SEA with Alaska Airlines. This carrier is the ideal choice if you'd rather get to Seattle as fast as you can.
What airlines fly from National Airport to Sea-Tac Airport?
Many seasoned wanderers choose to take to the skies with Alaska Airlines (AS) from Arlington to Seattle. This reputable air carrier not only offers as many as 60 flights per month, it also has direct services.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Washington (DCA)

Travelers at DCA love to visit these top cities. Roam to the top destinations from Washington (DCA) today with the cheap prices from Travelocity!

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle(SEA) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.