Cheap Flights From Seattle - Tacoma Intl. (SEA) To Washington Dulles Intl. (IAD)

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

The cheapest flights to Washington Dulles Intl. found within the past 7 days were CA $384 round trip and CA $183 one way. Prices and availability subject to change. Additional terms may apply.

Thu., Sep. 4 - Wed., Sep. 10
SEA
Seattle
IAD
Washington
CA $384 Roundtrip, found 21 hours ago
CA $384
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Thu., Sep. 4 from Seattle to Washington, returning Wed., Sep. 10, priced at CA $384 found 21 hours ago
Thu., Oct. 23 - Wed., Oct. 29
SEA
Seattle
IAD
Washington
CA $385 Roundtrip, found 3 days ago
CA $385
Roundtrip
found 3 days ago
Select Delta flight, departing Thu., Oct. 23 from Seattle to Washington, returning Wed., Oct. 29, priced at CA $385 found 3 days ago
Tue., Sep. 16 - Sun., Sep. 21
SEA
Seattle
IAD
Washington
CA $386 Roundtrip, found 5 days ago
CA $386
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue., Sep. 16 from Seattle to Washington, returning Sun., Sep. 21, priced at CA $386 found 5 days ago
Tue., Jun. 17 - Sat., Jun. 21
SEA
Seattle
IAD
Washington
CA $390 Roundtrip, found 2 days ago
CA $390
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue., Jun. 17 from Seattle to Washington, returning Sat., Jun. 21, priced at CA $390 found 2 days ago
Thu., Oct. 23 - Wed., Oct. 29
SEA
Seattle
IAD
Washington
CA $391 Roundtrip, found 3 days ago
CA $391
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., Oct. 23 from Seattle to Washington, returning Wed., Oct. 29, priced at CA $391 found 3 days ago
Thu., Oct. 23 - Wed., Oct. 29
SEA
Seattle
IAD
Washington
CA $411 Roundtrip, found 3 days ago
CA $411
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., Oct. 23 from Seattle to Washington, returning Wed., Oct. 29, priced at CA $411 found 3 days ago
Wed., Jul. 2 - Sat., Jul. 5
SEA
Seattle
IAD
Washington
CA $414 Roundtrip, found 4 days ago
CA $414
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed., Jul. 2 from Seattle to Washington, returning Sat., Jul. 5, priced at CA $414 found 4 days ago
Thu., Oct. 23 - Wed., Oct. 29
SEA
Seattle
IAD
Washington
CA $420 Roundtrip, found 3 days ago
CA $420
Roundtrip
found 3 days ago
Select Delta flight, departing Thu., Oct. 23 from Seattle to Washington, returning Wed., Oct. 29, priced at CA $420 found 3 days ago
Wed., Jul. 2 - Sat., Jul. 5
SEA
Seattle
IAD
Washington
CA $421 Roundtrip, found 4 days ago
CA $421
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed., Jul. 2 from Seattle to Washington, returning Sat., Jul. 5, priced at CA $421 found 4 days ago
Wed., Aug. 6 - Mon., Aug. 11
SEA
Seattle
IAD
Washington
CA $425 Roundtrip, found 3 days ago
CA $425
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed., Aug. 6 from Seattle to Washington, returning Mon., Aug. 11, priced at CA $425 found 3 days ago

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!

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!

*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.