Cheapest one-way flights from Washington to London in February from $155

AirHint found the following cheapest one-way flights from Washington (IAD) to London (LGW) in February 2026 (see full year).

One-Way flights

23 Feb Frontier Airlines
05 Feb Frontier Airlines
22 Feb Frontier Airlines
12 Feb Frontier Airlines
15 Feb TAP
27 Feb Frontier Airlines
07 Feb Frontier Airlines
13 Feb TAP
24 Feb TAP
18 Feb Icelandair

Also check the deals for return flights from Washington to London in February.

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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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