Cheapest return flights from Washington to London in April from $586

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

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

Return flights

04 Apr - 08 Apr jetBlue
24 Apr - 04 May jetBlue
25 Apr - 04 May jetBlue
26 Apr - 04 May jetBlue
24 Apr - 06 May jetBlue
03 Apr - 13 Apr jetBlue
04 Apr - 12 Apr jetBlue
04 Apr - 13 Apr jetBlue
05 Apr - 13 Apr jetBlue
23 Apr - 04 May jetBlue
01 Apr - 07 Apr jetBlue
15 Apr - 22 Apr British Airways
22 Apr - 29 Apr British Airways
14 Apr - 21 Apr jetBlue
04 Apr - 20 Apr jetBlue
23 Apr - 03 May Air Canada
17 Apr - 11 May British Airways

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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