Cheapest return flights from Washington to London in October from $536

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

Return flights

16 Oct - 20 Oct Icelandair
07 Oct - 11 Oct Icelandair
28 Oct - 02 Nov Icelandair
09 Oct - 13 Oct Icelandair
02 Oct - 07 Oct Icelandair
13 Oct - 25 Oct Icelandair
08 Oct - 15 Oct Icelandair
14 Oct - 18 Oct Royal Air Maroc
31 Oct - 08 Nov TAP
17 Oct - 24 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.