Cheapest return flights from Washington to London in April from 521€

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

02 Apr - 16 Apr jetBlue
07 Apr - 10 Apr jetBlue
05 Apr - 16 Apr jetBlue
08 Apr - 24 Apr jetBlue
06 Apr - 13 May jetBlue
09 Apr - 16 Apr jetBlue
02 Apr - 08 Apr Iberia
15 Apr - 23 Apr Air France
15 Apr - 06 May Air France
08 Apr - 22 Apr Iberia
02 Apr - 15 Apr Iberia
15 Apr - 30 Apr Iberia
30 Apr - 06 May Iberia
30 Apr - 10 May jetBlue
29 Apr - 13 May jetBlue
23 Apr - 01 May Air Canada
29 Apr - 06 May United
27 Apr - 03 May jetBlue
12 Apr - 22 May Air Canada

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

Skyscanner

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