Book United London to Seattle flight deals from £684

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Search flights from London to Seattle (LHR - SEA)

December

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Wed 12

Return Thu 27
from£ 684*Viewed: 3 hours ago

Thu 13

Return Fri 28
from£ 707*Viewed: 3 hours ago

Fri 14

Return Sat 29
from£ 707*Viewed: 3 hours ago

January

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Tue 8

Return Wed 23
from£ 701*Viewed: 3 hours ago

Mon 28

Return Tue 12
from£ 703*Viewed: 3 hours ago

Tue 29

Return Wed 13
from£ 703*Viewed: 3 hours ago

February

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Sat 2

Return Sun 17
from£ 710*Viewed: 3 hours ago

Mon 4

Return Tue 19
from£ 703*Viewed: 3 hours ago

Tue 12

Return Wed 27
from£ 723*Viewed: 3 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.

Plan ahead for flights from London to Seattle

from
to
Type
Dates
Price*
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Wed 12 Dec 2018
Return Thu 27 Dec 2018
from£ 684*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Tue 8 Jan 2019
Return Wed 23 Jan 2019
from£ 701*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Mon 7 Jan 2019
Return Tue 22 Jan 2019
from£ 703*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Wed 9 Jan 2019
Return Thu 24 Jan 2019
from£ 703*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Mon 14 Jan 2019
Return Tue 29 Jan 2019
from£ 703*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Tue 15 Jan 2019
Return Wed 30 Jan 2019
from£ 703*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Wed 16 Jan 2019
Return Thu 31 Jan 2019
from£ 703*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Mon 21 Jan 2019
Return Tue 5 Feb 2019
from£ 703*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Tue 22 Jan 2019
Return Wed 6 Feb 2019
from£ 703*Viewed: 3 hours ago
London (LHR)
to Seattle (SEA)
Roundtrip
Depart Wed 23 Jan 2019
Return Thu 7 Feb 2019
from£ 703*Viewed: 3 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

7 °CFriday11/16/2018
6 °CSaturday11/17/2018
5 °CSunday11/18/2018
5 °CMonday11/19/2018
2 °CTuesday11/20/2018
4 °CWednesday11/21/2018
5 °CThursday11/22/2018
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