Cheapest return flights from Seattle to London in November from 421€

AirHint found the following cheapest return flights from Seattle (SEA) to London (LHR) in November 2025 (see full year).

Return flights

05 Nov - 12 Nov Icelandair
03 Nov - 08 Nov Icelandair
28 Nov - 02 Dec Icelandair
09 Nov - 13 Nov Icelandair
18 Nov - 25 Nov Icelandair
04 Nov - 11 Nov Icelandair
16 Nov - 12 Dec Icelandair
28 Nov - 05 Dec Icelandair
03 Nov - 18 Nov Icelandair
13 Nov - 24 Nov Icelandair
04 Nov - 19 Nov Delta
04 Nov - 11 Nov British Airways direct
05 Nov - 12 Nov Virgin Atlantic direct
16 Nov - 12 Dec British Airways direct
26 Nov - 07 Dec Lufthansa
10 Nov - 06 Dec Lufthansa
12 Nov - 06 Dec Air France
29 Nov - 10 Dec Delta
29 Nov - 07 Dec Air Canada
16 Nov - 06 Dec Air France

Also check the deals for one-way flights from Seattle to London in November.

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