Cheapest return flights from Washington to London in April from 504€

Best time to book flights for Washington (IAD) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to London (LHR) in April 2025 (see full year).

Return flights

04 Apr - 21 Apr Icelandair
15 Apr - 22 Apr Icelandair
07 Apr - 14 Apr Icelandair
02 Apr - 10 Apr Icelandair
01 Apr - 08 Apr Icelandair
02 Apr - 08 Apr Icelandair
01 Apr - 01 May Icelandair
01 Apr - 06 May Icelandair
23 Apr - 03 May Icelandair
01 Apr - 07 Apr Scandinavian Airlines
15 Apr - 27 Apr Icelandair
02 Apr - 15 Apr Icelandair
04 Apr - 12 Apr Icelandair
30 Apr - 04 May Scandinavian Airlines
30 Apr - 07 May Virgin Atlantic direct
01 Apr - 06 May Virgin Atlantic direct
01 Apr - 01 May Virgin Atlantic direct
23 Apr - 07 May British Airways direct
23 Apr - 02 May British Airways direct
23 Apr - 09 May British Airways direct

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

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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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