Cheapest return flights from Washington to London in October from $458

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

06 Oct - 13 Oct Scandinavian Airlines
20 Oct - 27 Oct Scandinavian Airlines
19 Oct - 27 Oct Scandinavian Airlines
22 Oct - 30 Oct Scandinavian Airlines
21 Oct - 27 Oct Scandinavian Airlines
01 Oct - 06 Oct Scandinavian Airlines
09 Oct - 13 Oct Scandinavian Airlines
03 Oct - 13 Oct Scandinavian Airlines
02 Oct - 21 Oct Scandinavian Airlines
09 Oct - 14 Oct Scandinavian Airlines
26 Oct - 02 Nov Scandinavian Airlines
28 Oct - 06 Nov Air Canada
31 Oct - 09 Nov Scandinavian Airlines
28 Oct - 02 Nov Scandinavian Airlines
26 Oct - 02 Nov Iberia direct
28 Oct - 04 Nov United
28 Oct - 04 Nov British Airways direct
28 Oct - 06 Nov British Airways direct
31 Oct - 09 Nov British Airways direct
28 Oct - 02 Nov British Airways direct

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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