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

Return flights

14 Nov - 16 Nov	jetBlue
05 Nov - 12 Nov	Air Canada
09 Nov - 17 Nov	Air Canada
19 Nov - 25 Nov	Air Canada
05 Nov - 11 Nov	Air Canada
17 Nov - 27 Nov	Air Canada
09 Nov - 12 Nov	jetBlue
04 Nov - 19 Nov	Air Canada
05 Nov - 09 Nov	jetBlue
25 Nov - 02 Dec	Air Canada
24 Nov - 02 Dec	Air Canada
11 Nov - 18 Nov	Scandinavian Airlines
22 Nov - 13 Dec	Air Canada
11 Nov - 06 Dec	Scandinavian Airlines
10 Nov - 06 Dec	Air Canada
17 Nov - 13 Dec	Air Canada
16 Nov - 06 Dec	Finnair
26 Nov - 01 Dec	Air Canada
25 Nov - 01 Dec	Air Canada
19 Nov - 13 Dec	British Airways

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 $514

Return flights