Cheapest return flights from Washington to London in October from $428

Best time to book flights for Washington (IAD) to London (LHR) flights at AirHint

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

Return flights

01 Oct - 08 Oct Scandinavian Airlines
28 Oct - 09 Nov Scandinavian Airlines
27 Oct - 09 Nov Scandinavian Airlines
29 Oct - 09 Nov Scandinavian Airlines
01 Oct - 07 Oct Scandinavian Airlines
07 Oct - 14 Oct Scandinavian Airlines
08 Oct - 15 Oct Scandinavian Airlines
13 Oct - 20 Oct Scandinavian Airlines
14 Oct - 21 Oct Scandinavian Airlines
20 Oct - 27 Oct Scandinavian Airlines
21 Oct - 28 Oct Scandinavian Airlines
22 Oct - 29 Oct Scandinavian Airlines
28 Oct - 04 Nov Scandinavian Airlines
29 Oct - 05 Nov Scandinavian Airlines
02 Oct - 09 Oct Scandinavian Airlines
30 Oct - 06 Nov Scandinavian Airlines
26 Oct - 02 Nov Scandinavian Airlines
31 Oct - 07 Nov Icelandair
24 Oct - 02 Nov Icelandair
25 Oct - 01 Nov Scandinavian Airlines

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

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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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