Cheapest return flights from Washington to London in April from 579€

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

Return flights

26 Apr - 30 Apr Scandinavian Airlines
27 Apr - 30 Apr Scandinavian Airlines
27 Apr - 01 May Scandinavian Airlines
20 Apr - 30 Apr Scandinavian Airlines
19 Apr - 29 Apr Scandinavian Airlines
26 Apr - 08 May Scandinavian Airlines
20 Apr - 24 Apr Scandinavian Airlines
19 Apr - 22 Apr Scandinavian Airlines
20 Apr - 23 Apr Scandinavian Airlines
19 Apr - 23 Apr Scandinavian Airlines
26 Apr - 05 May Scandinavian Airlines
29 Apr - 06 May Virgin Atlantic
14 Apr - 21 Apr Turkish Airlines
23 Apr - 30 Apr Turkish Airlines
22 Apr - 05 May Turkish Airlines
21 Apr - 20 May Turkish Airlines
19 Apr - 15 May Scandinavian Airlines
29 Apr - 20 May Aer Lingus
28 Apr - 04 May KLM
29 Apr - 06 May Lufthansa direct

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

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