Cheapest return flights from Washington to London in April from 439€

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

Return flights

19 Apr - 04 May TAP
19 Apr - 29 Apr TAP
19 Apr - 30 Apr TAP
20 Apr - 05 May TAP
20 Apr - 06 May Scandinavian Airlines
20 Apr - 29 Apr TAP
28 Apr - 06 May TAP
19 Apr - 01 May TAP
21 Apr - 29 Apr TAP
20 Apr - 04 May TAP
20 Apr - 30 Apr Scandinavian Airlines
16 Apr - 23 Apr TAP
20 Apr - 27 Apr Scandinavian Airlines
13 Apr - 22 Apr Scandinavian Airlines
26 Apr - 08 May Scandinavian Airlines
19 Apr - 02 May Scandinavian Airlines
18 Apr - 22 Apr Scandinavian Airlines
19 Apr - 03 May Scandinavian Airlines
15 Apr - 29 Apr Turkish Airlines
13 Apr - 04 May Scandinavian Airlines

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.