Book United Philadelphia to Seattle flight deals from $410

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Search flights from Philadelphia to Seattle (PHL - SEA)

August

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Monday 27th

Return Tuesday 11th
from$ 410*Viewed: 2 hours ago

Tuesday 28th

Return Wednesday 12th
from$ 410*Viewed: 2 hours ago

Wednesday 29th

Return Thursday 13th
from$ 410*Viewed: 2 hours ago

September

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Wednesday 5th

Return Thursday 20th
from$ 410*Viewed: 2 hours ago

Wednesday 12th

Return Thursday 27th
from$ 410*Viewed: 2 hours ago

Monday 17th

Return Tuesday 2nd
from$ 410*Viewed: 2 hours ago

October

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Monday 1st

Return Tuesday 16th
from$ 410*Viewed: 2 hours ago

Wednesday 3rd

Return Thursday 18th
from$ 410*Viewed: 2 hours ago

Wednesday 10th

Return Thursday 25th
from$ 410*Viewed: 2 hours 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 Philadelphia to Seattle

from
to
Type
Dates
Price*
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Tue 21 Aug 2018
Return Wed 5 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Wed 22 Aug 2018
Return Thu 6 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Mon 27 Aug 2018
Return Tue 11 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Tue 28 Aug 2018
Return Wed 12 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Wed 29 Aug 2018
Return Thu 13 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Sun 2 Sep 2018
Return Mon 17 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Tue 4 Sep 2018
Return Wed 19 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Wed 5 Sep 2018
Return Thu 20 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Mon 10 Sep 2018
Return Tue 25 Sep 2018
from$ 410*Viewed: 2 hours ago
Philadelphia (PHL)
to Seattle (SEA)
Roundtrip
Depart Tue 11 Sep 2018
Return Wed 26 Sep 2018
from$ 410*Viewed: 2 hours 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

65 °FThursday07/19/2018
70 °FFriday07/20/2018
72 °FSaturday07/21/2018
70 °FSunday07/22/2018
76 °FMonday07/23/2018
77 °FTuesday07/24/2018
75 °FWednesday07/25/2018
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