Book United Seattle to London flight deals from $602

Select journey type

Enter to select travel class and passengers

Search flights from Seattle to London (SEA - LHR)

September

Skip to content

Wednesday 12th

Return Thursday 27th
from$ 614*Viewed: 2 hours ago

Wednesday 26th

Return Thursday 11th
from$ 605*Viewed: 2 hours ago

Thursday 27th

Return Friday 12th
from$ 613*Viewed: 2 hours ago

October

Skip to content

Monday 8th

Return Tuesday 23rd
from$ 602*Viewed: 2 hours ago

Monday 15th

Return Tuesday 30th
from$ 606*Viewed: 2 hours ago

Wednesday 31st

Return Thursday 15th
from$ 602*Viewed: 2 hours ago

November

Skip to content

Wednesday 7th

Return Thursday 22nd
from$ 606*Viewed: 2 hours ago

Monday 12th

Return Tuesday 27th
from$ 606*Viewed: 2 hours ago

Tuesday 13th

Return Wednesday 28th
from$ 606*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..

Plan ahead for flights from Seattle to London

from
to
Type
Dates
Price*
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Mon 8 Oct 2018
Return Tue 23 Oct 2018
from$ 602*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Wed 31 Oct 2018
Return Thu 15 Nov 2018
from$ 602*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Wed 26 Sep 2018
Return Thu 11 Oct 2018
from$ 605*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Wed 10 Oct 2018
Return Thu 25 Oct 2018
from$ 606*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Mon 15 Oct 2018
Return Tue 30 Oct 2018
from$ 606*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Mon 5 Nov 2018
Return Tue 20 Nov 2018
from$ 606*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Tue 6 Nov 2018
Return Wed 21 Nov 2018
from$ 606*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Wed 7 Nov 2018
Return Thu 22 Nov 2018
from$ 606*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Mon 12 Nov 2018
Return Tue 27 Nov 2018
from$ 606*Viewed: 2 hours ago
Seattle (SEA)
to London (LHR)
Roundtrip
Depart Tue 13 Nov 2018
Return Wed 28 Nov 2018
from$ 606*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 London

75 °FWednesday08/15/2018
66 °FThursday08/16/2018
67 °FFriday08/17/2018
74 °FSaturday08/18/2018
71 °FSunday08/19/2018
74 °FMonday08/20/2018
76 °FTuesday08/21/2018
Powered by: OpenWeatherMap.org