Cheapest return flights from Washington to London in April from $632

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

Return flights

01 Apr - 10 Apr British Airways
22 Apr - 28 Apr British Airways
13 Apr - 22 Apr British Airways
01 Apr - 08 Apr jetBlue
02 Apr - 10 Apr British Airways
22 Apr - 27 Apr British Airways
01 Apr - 12 Apr British Airways
07 Apr - 30 Apr Icelandair
06 Apr - 30 Apr Icelandair
02 Apr - 12 Apr British Airways
29 Apr - 09 May Icelandair
17 Apr - 02 May WestJet

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

Powered by

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.