Cheapest return flights from Washington to London in April from 563€

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

Return flights

26 Apr - 30 Apr Icelandair
19 Apr - 29 Apr Scandinavian Airlines
20 Apr - 23 Apr Scandinavian Airlines
19 Apr - 22 Apr Scandinavian Airlines
26 Apr - 05 May Icelandair
26 Apr - 08 May Icelandair
20 Apr - 30 Apr Icelandair
30 Apr - 12 May Frontier Airlines
22 Apr - 05 May Icelandair
19 Apr - 26 Apr Icelandair
27 Apr - 01 May Icelandair
26 Apr - 04 May Icelandair
18 Apr - 29 Apr Icelandair
19 Apr - 15 May Icelandair
20 Apr - 26 Apr Icelandair
27 Apr - 30 Apr Scandinavian Airlines
26 Apr - 24 May Icelandair
30 Apr - 07 May Frontier Airlines
28 Apr - 04 May Icelandair
15 Apr - 22 Apr Turkish Airlines

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

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