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 $320 round trip and CA $154 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Feb 5 - Wed, Feb 11
DCA
Washington
SEA
Seattle
CA $320 Roundtrip, found 3 days ago
CA $320
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Feb 5 from Washington to Seattle, returning Wed, Feb 11, priced at CA $320 found 3 days ago
Fri, Jan 23 - Thu, Jan 29
DCA
Washington
SEA
Seattle
CA $333 Roundtrip, found 22 hours ago
CA $333
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Washington to Seattle, returning Thu, Jan 29, priced at CA $333 found 22 hours ago
Sat, Feb 28 - Fri, Mar 6
DCA
Washington
SEA
Seattle
CA $344 Roundtrip, found 4 days ago
CA $344
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Feb 28 from Washington to Seattle, returning Fri, Mar 6, priced at CA $344 found 4 days ago
Fri, Jan 23 - Thu, Jan 29
DCA
Washington
SEA
Seattle
CA $349 Roundtrip, found 22 hours ago
CA $349
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Washington to Seattle, returning Thu, Jan 29, priced at CA $349 found 22 hours ago
Thu, Feb 5 - Wed, Feb 11
DCA
Washington
SEA
Seattle
CA $371 Roundtrip, found 3 days ago
CA $371
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Feb 5 from Washington to Seattle, returning Wed, Feb 11, priced at CA $371 found 3 days ago
Thu, Feb 5 - Wed, Feb 11
DCA
Washington
SEA
Seattle
CA $376 Roundtrip, found 3 days ago
CA $376
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Feb 5 from Washington to Seattle, returning Wed, Feb 11, priced at CA $376 found 3 days ago
Sat, Feb 28 - Sat, Mar 7
DCA
Washington
SEA
Seattle
CA $395 Roundtrip, found 4 days ago
CA $395
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Feb 28 from Washington to Seattle, returning Sat, Mar 7, priced at CA $395 found 4 days ago
Sat, Feb 28 - Fri, Mar 6
DCA
Washington
SEA
Seattle
CA $400 Roundtrip, found 4 days ago
CA $400
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Feb 28 from Washington to Seattle, returning Fri, Mar 6, priced at CA $400 found 4 days ago
Sat, Feb 28 - Sat, Mar 7
DCA
Washington
SEA
Seattle
CA $406 Roundtrip, found 4 days ago
CA $406
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Feb 28 from Washington to Seattle, returning Sat, Mar 7, priced at CA $406 found 4 days ago
Tue, Mar 24 - Wed, Apr 1
DCA
Washington
SEA
Seattle
CA $407 Roundtrip, found 6 days ago
CA $407
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Mar 24 from Washington to Seattle, returning Wed, Apr 1, priced at CA $407 found 6 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.