Cheapest return flights from London to Washington in April from 558€

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

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

Return flights

01 Apr - 15 Apr British Airways
01 Apr - 08 Apr British Airways
28 Apr - 06 May British Airways
03 Apr - 08 Apr Aer Lingus
02 Apr - 08 Apr British Airways
25 Apr - 28 Apr Aer Lingus
04 Apr - 07 Apr Scandinavian Airlines
28 Apr - 01 May British Airways
29 Apr - 02 May Icelandair
16 Apr - 24 Apr Icelandair
05 Apr - 08 Apr British Airways
04 Apr - 08 Apr Aer Lingus
21 Apr - 28 Apr Icelandair
30 Apr - 04 May Icelandair
24 Apr - 08 May Icelandair
29 Apr - 13 May Icelandair
25 Apr - 10 May Icelandair
16 Apr - 04 May Icelandair
17 Apr - 01 May British Airways
17 Apr - 06 May Icelandair

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