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

Return flights

18 Nov - 26 Nov	Air Canada
26 Nov - 02 Dec	Air Canada
26 Nov - 03 Dec	Air Canada
17 Nov - 24 Nov	Air Canada
26 Nov - 01 Dec	Air Canada
10 Nov - 17 Nov	Air Canada
25 Nov - 01 Dec	Air Canada
12 Nov - 17 Nov	Air Canada
16 Nov - 22 Nov	Air Canada
12 Nov - 19 Nov	Air Canada
14 Nov - 21 Nov	Air Canada
14 Nov - 20 Nov	Air Canada
16 Nov - 06 Dec	Air Canada
12 Nov - 16 Nov	Air Canada
20 Nov - 27 Nov	Air Canada
26 Nov - 07 Dec	Air Canada
30 Nov - 05 Dec	jetBlue
19 Nov - 03 Dec	Icelandair
11 Nov - 06 Dec	Finnair

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 $498

Return flights