![](https://images.trvl-media.com/media/content/shared/images/travelguides/tvly/flight-desktop.jpg?impolicy=fcrop&w=900&h=225&q=mediumHigh)
Cheap Flights From Ronald Reagan Washington National (DCA) To Seattle - Tacoma Intl. (SEA)
Wander Wisely with exceptional service, 24/7 supportOpens in a new window
Feel at ease with free flight cancellations within 24 hours of booking
Change your flight without a fee on select flights
Find The Best Dates To Fly
Cheapest Flights from Washington (DCA) to Seattle (SEA)
The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $394 round trip and CA $193 one way. Prices and availability subject to change. Additional terms may apply.
DCA
Washington
SEA
Seattle
CA $394 Roundtrip, found 6 days ago
CA $394
Roundtrip
found 6 days ago
DCA
Washington
SEA
Seattle
CA $408 Roundtrip, found 4 hours ago
CA $408
Roundtrip
found 4 hours ago
DCA
Washington
SEA
Seattle
CA $410 Roundtrip, found 4 hours ago
CA $410
Roundtrip
found 4 hours ago
DCA
Washington
SEA
Seattle
CA $432 Roundtrip, found 4 hours ago
CA $432
Roundtrip
found 4 hours ago
DCA
Washington
SEA
Seattle
CA $433 Roundtrip, found 4 hours ago
CA $433
Roundtrip
found 4 hours ago
DCA
Washington
SEA
Seattle
CA $445 Roundtrip, found 4 days ago
CA $445
Roundtrip
found 4 days ago
DCA
Washington
SEA
Seattle
CA $447 Roundtrip, found 4 hours ago
CA $447
Roundtrip
found 4 hours ago
DCA
Washington
SEA
Seattle
CA $449 Roundtrip, found 4 hours ago
CA $449
Roundtrip
found 4 hours ago
DCA
Washington
SEA
Seattle
CA $450 Roundtrip, found 4 days ago
CA $450
Roundtrip
found 4 days ago
DCA
Washington
SEA
Seattle
CA $458 Roundtrip, found 4 days ago
CA $458
Roundtrip
found 4 days ago
Seattle - Tacoma Intl. flight + hotel packages - economy flights
Price found within the past 48 hours. Click for updated prices.
![Staypineapple, Hotel FIVE, Downtown Seattle](https://images.trvl-media.com/lodging/1000000/20000/12000/11969/5c9da0a7_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![Lotte Hotel Seattle](https://images.trvl-media.com/lodging/49000000/48220000/48217800/48217742/129d0a6f_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![Mediterranean Inn](https://images.trvl-media.com/lodging/1000000/900000/897600/897598/7d676bd3_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![Coast Seattle Downtown Hotel by APA](https://images.trvl-media.com/lodging/1000000/10000/8000/7910/f83ee252_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![Mayflower Park Hotel](https://images.trvl-media.com/lodging/1000000/30000/26900/26893/3e2a8bbc_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
Don't see what you're looking for?
See all available trips from Ronald Reagan Washington National to Seattle - Tacoma Intl.
View all tripsFrequently asked questions
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!
Top Airlines Routes From DCA
Most Popular
Flights
YVR - PSPYVR - LASDTW - DFWWestJet Vancouver (YVR) to Las Vegas (LAS) flightsYUL - FLLYVR - FLLBUF - DFWDelta Detroit (DTW) to Las Vegas (LAS) flightsJetBlue Airways Buffalo (BUF) to Boston (BOS) flightsDTW - FLLFLL - YYZYVR - SANYVR - DFWYYZ - DFWJetBlue Airways Buffalo (BUF) to Fort Lauderdale (FLL) flightsPorter Airlines Toronto (YTZ) to Philadelphia (PHL) flightsAir Canada Toronto (YYZ) to Las Vegas (LAS) flightsWestJet Edmonton (YEG) to Las Vegas (LAS) flightsYYZ - NYCYYZ - PHLSwoop Edmonton (YEG) to Las Vegas (LAS) flightsSTL - GUFAir Canada Toronto (YYZ) to Fort Lauderdale (FLL) flightsYYZ - LASAir Canada Montreal (YUL) to Las Vegas (LAS) flightsSwoop Abbotsford (YXX) to Las Vegas (LAS) flightsSpirit Airlines Niagara Falls (IAG) to Fort Lauderdale (FLL) flightsYYZ - BOSAir Canada Toronto (YYZ) to San Diego (SAN) flightsDelta Buffalo (BUF) to Las Vegas (LAS) flights