Cheapest return flights from Washington to London in April from $545
AirHint found the following cheapest return flights from Washington (IAD) to London (LHR)
in April 2026 (see full year ).
Return flights
30 Apr
- 03 May
Scandinavian Airlines
$ 545
08 Apr
- 17 Apr
Scandinavian Airlines
$ 574
23 Apr
- 02 May
Scandinavian Airlines
$ 580
23 Apr
- 15 May
Scandinavian Airlines
$ 580
23 Apr
- 21 May
Scandinavian Airlines
$ 580
08 Apr
- 02 May
Scandinavian Airlines
$ 580
15 Apr
- 05 May
Scandinavian Airlines
$ 584
29 Apr
- 09 May
Scandinavian Airlines
$ 584
06 Apr
- 15 Apr
Icelandair
$ 586
06 Apr
- 13 Apr
Icelandair
$ 587
16 Apr
- 23 Apr
Icelandair
$ 610
23 Apr
- 16 May
Icelandair
$ 610
26 Apr
- 03 May
Icelandair
$ 617
08 Apr
- 17 Apr
American Airlines
$ 652
direct
06 Apr
- 15 Apr
British Airways
$ 652
direct
21 Apr
- 26 Apr
Aer Lingus
$ 655
06 Apr
- 13 Apr
British Airways
$ 702
direct
16 Apr
- 23 Apr
British Airways
$ 702
direct
23 Apr
- 15 May
American Airlines
$ 702
direct
Also check the deals for one-way flights from Washington to London in April .
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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