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Cheapest Flights from Washington (IAD) to Seattle (SEA)
The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $356 round trip and CA $180 one way. Prices and availability subject to change. Additional terms may apply.
Sat., 11 Jan. - Wed., 22 Jan.
IAD
Washington
SEA
Seattle
CA $356 Roundtrip, found 6 days ago
CA $356
Roundtrip
found 6 days ago
Mon., 27 Jan. - Mon., 3 Feb.
IAD
Washington
SEA
Seattle
CA $400 Roundtrip, found 4 days ago
CA $400
Roundtrip
found 4 days ago
Thu., 13 Feb. - Mon., 17 Feb.
IAD
Washington
SEA
Seattle
CA $402 Roundtrip, found 2 days ago
CA $402
Roundtrip
found 2 days ago
Wed., 8 Jan. - Sun., 12 Jan.
IAD
Washington
SEA
Seattle
CA $444 Roundtrip, found 20 hours ago
CA $444
Roundtrip
found 20 hours ago
Thu., 1 May - Sat., 10 May
IAD
Washington
SEA
Seattle
CA $486 Roundtrip, found 3 days ago
CA $486
Roundtrip
found 3 days ago
Wed., 9 Jul. - Wed., 23 Jul.
IAD
Washington
SEA
Seattle
CA $488 Roundtrip, found 9 hours ago
CA $488
Roundtrip
found 9 hours ago
Thu., 1 May - Sat., 10 May
IAD
Washington
SEA
Seattle
CA $498 Roundtrip, found 3 days ago
CA $498
Roundtrip
found 3 days ago
Thu., 1 May - Sat., 10 May
IAD
Washington
SEA
Seattle
CA $499 Roundtrip, found 3 days ago
CA $499
Roundtrip
found 3 days ago
Wed., 9 Jul. - Wed., 23 Jul.
IAD
Washington
SEA
Seattle
CA $502 Roundtrip, found 9 hours ago
CA $502
Roundtrip
found 9 hours ago
Thu., 1 May - Sat., 10 May
IAD
Washington
SEA
Seattle
CA $505 Roundtrip, found 3 days ago
CA $505
Roundtrip
found 3 days ago
Frequently asked questions
Popular Flight Routes from Washington (IAD)
Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington (IAD) 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 To SEA
- WestJet Ottawa to Seattle
- Alaska Airlines Newark Liberty Intl. Airport to Seattle
- Alaska Airlines Phoenix to Seattle
- WestJet Calgary to Seattle
- Alaska Airlines Los Angeles to Seattle
- WestJet Kelowna to Seattle
- Alaska Airlines Detroit to Seattle
- WestJet Winnipeg to Seattle
- Air Canada Delhi to Seattle
- Alaska Airlines Victoria to Seattle