Cheapest return flights from Washington to London in October from 526€

AirHint found the following cheapest return flights from Washington (IAD) to London (LGW) in October 2026 (see full year).

Return flights

27 Oct - 03 Nov Icelandair
26 Oct - 12 Nov Icelandair
10 Oct - 17 Oct SWISS
09 Oct - 23 Oct TAP

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

Powered by

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.