Cheapest return flights from Washington to London in April from 456€

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

Return flights

18 Apr - 23 Apr Icelandair
16 Apr - 09 May TAP
29 Apr - 06 May Icelandair
23 Apr - 02 May TAP
22 Apr - 02 May TAP
01 Apr - 13 Apr Icelandair
08 Apr - 13 Apr TAP
10 Apr - 02 May Icelandair
16 Apr - 21 Apr SWISS
01 Apr - 08 Apr Turkish Airlines
01 Apr - 25 Apr TAP
11 Apr - 18 Apr TAP

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

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