Cheapest return flights from Seattle to London in November from $519

Best time to book flights for Seattle (SEA) to London (LHR) flights at AirHint

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

Return flights

08 Nov - 22 Nov Icelandair
13 Nov - 20 Nov Icelandair
11 Nov - 25 Nov Icelandair
08 Nov - 15 Nov Icelandair
28 Nov - 05 Dec Icelandair
04 Nov - 08 Nov Icelandair
11 Nov - 25 Nov Air France direct
13 Nov - 20 Nov Air France direct
28 Nov - 05 Dec British Airways direct
08 Nov - 15 Nov British Airways direct
08 Nov - 22 Nov Air France direct
26 Nov - 30 Nov Icelandair
21 Nov - 01 Dec Icelandair
21 Nov - 01 Dec Air France direct

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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