AirHint found the following cheapest return flights from Washington (IAD) to London (LGW) in November 2025 (see full year).

Return flights

17 Nov - 20 Nov	Icelandair
18 Nov - 25 Nov	Air Canada
18 Nov - 27 Nov	Icelandair
11 Nov - 18 Nov	Icelandair
13 Nov - 20 Nov	Icelandair
26 Nov - 03 Dec	Icelandair
24 Nov - 03 Dec	Icelandair
09 Nov - 14 Nov	Icelandair
10 Nov - 19 Nov	Icelandair
09 Nov - 13 Nov	Icelandair
18 Nov - 26 Nov	Icelandair
11 Nov - 09 Dec	Icelandair
03 Nov - 06 Nov	Icelandair
30 Nov - 08 Dec	TAP
16 Nov - 04 Dec	Icelandair
25 Nov - 05 Dec	Icelandair
04 Nov - 02 Dec	Icelandair
11 Nov - 06 Dec	Frontier Airlines
14 Nov - 06 Dec	Icelandair
15 Nov - 06 Dec	Icelandair

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

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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Cheapest return flights from Washington to London in November from 399€

Return flights