Cheapest return flights from Washington to London in April from 522€

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

Return flights

21 Apr - 29 Apr TAP
20 Apr - 30 Apr Icelandair
07 Apr - 28 Apr Icelandair
11 Apr - 19 Apr Icelandair
09 Apr - 13 Apr Turkish Airlines
10 Apr - 13 Apr SWISS
29 Apr - 04 May Turkish Airlines
02 Apr - 12 Apr Scandinavian Airlines
05 Apr - 11 Apr TAP
10 Apr - 02 May Turkish Airlines
11 Apr - 13 Apr Turkish Airlines
02 Apr - 04 Apr Aer Lingus

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

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