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

Return flights

18 Feb - 25 Feb	TAP
05 Feb - 09 Feb	TAP
05 Feb - 08 Feb	TAP
16 Feb - 22 Feb	TAP
06 Feb - 15 Feb	TAP
08 Feb - 28 Feb	Icelandair
09 Feb - 21 Feb	Icelandair
13 Feb - 07 Mar	Icelandair
10 Feb - 07 Mar	Icelandair
05 Feb - 11 Feb	Icelandair
01 Feb - 06 Feb	Icelandair
12 Feb - 16 Feb	Icelandair
25 Feb - 21 Mar	Icelandair
24 Feb - 21 Mar	Icelandair
28 Feb - 09 Mar	Icelandair
25 Feb - 04 Mar	Icelandair
25 Feb - 04 Mar	British Airways	direct
10 Feb - 07 Mar	British Airways	direct
25 Feb - 21 Mar	British Airways	direct
24 Feb - 21 Mar	British Airways	direct

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

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 February from $424

Return flights