Book United Washington, D.C. to Seattle flight deals from $327

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Search flights from Washington, D.C. to Seattle (IAD - SEA)

August

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Wednesday 29th

Return Thursday 13th
from$ 385*Viewed: 1 hour ago

Thursday 30th

Return Friday 14th
from$ 435*Viewed: 1 hour ago

Friday 31st

Return Saturday 15th
from$ 428*Viewed: 1 hour ago

September

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Tuesday 11th

Return Wednesday 26th
from$ 327*Viewed: 1 hour ago

Tuesday 18th

Return Wednesday 3rd
from$ 327*Viewed: 1 hour ago

Tuesday 25th

Return Wednesday 10th
from$ 327*Viewed: 1 hour ago

October

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Tuesday 9th

Return Wednesday 24th
from$ 327*Viewed: 1 hour ago

Tuesday 16th

Return Wednesday 31st
from$ 327*Viewed: 1 hour ago

Tuesday 30th

Return Wednesday 14th
from$ 327*Viewed: 1 hour ago
**Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply..
Downtown Seattle at sunset

Plan ahead for flights from Washington, D.C. to Seattle

from
to
Type
Dates
Price*
Washington, D.C. (IAD)
to Seattle (SEA)
Roundtrip
Depart Tue 11 Sep 2018
Return Wed 26 Sep 2018
from$ 327*Viewed: 1 hour ago
Washington, D.C. (WAS)
to Seattle (SEA)
Roundtrip
Depart Tue 11 Sep 2018
Return Wed 26 Sep 2018
from$ 327*Viewed: 32 minutes ago
Washington, D.C. (IAD)
to Seattle (SEA)
Roundtrip
Depart Tue 18 Sep 2018
Return Wed 3 Oct 2018
from$ 327*Viewed: 1 hour ago
Washington, D.C. (WAS)
to Seattle (SEA)
Roundtrip
Depart Tue 18 Sep 2018
Return Wed 3 Oct 2018
from$ 327*Viewed: 31 minutes ago
Washington, D.C. (IAD)
to Seattle (SEA)
Roundtrip
Depart Tue 25 Sep 2018
Return Wed 10 Oct 2018
from$ 327*Viewed: 1 hour ago
Washington, D.C. (WAS)
to Seattle (SEA)
Roundtrip
Depart Tue 25 Sep 2018
Return Wed 10 Oct 2018
from$ 327*Viewed: 31 minutes ago
Washington, D.C. (IAD)
to Seattle (SEA)
Roundtrip
Depart Tue 2 Oct 2018
Return Wed 17 Oct 2018
from$ 327*Viewed: 1 hour ago
Washington, D.C. (WAS)
to Seattle (SEA)
Roundtrip
Depart Tue 2 Oct 2018
Return Wed 17 Oct 2018
from$ 327*Viewed: 31 minutes ago
Washington, D.C. (IAD)
to Seattle (SEA)
Roundtrip
Depart Tue 9 Oct 2018
Return Wed 24 Oct 2018
from$ 327*Viewed: 1 hour ago
Washington, D.C. (WAS)
to Seattle (SEA)
Roundtrip
Depart Tue 9 Oct 2018
Return Wed 24 Oct 2018
from$ 327*Viewed: 31 minutes ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Seattle

82 °FWednesday08/15/2018
74 °FThursday08/16/2018
71 °FFriday08/17/2018
67 °FSaturday08/18/2018
73 °FSunday08/19/2018
76 °FMonday08/20/2018
75 °FTuesday08/21/2018
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