Cheapest return flights from Washington to London in June from 739€

Best time to book flights for Washington (IAD) to London (LGW) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to London (LGW) in June 2025 (see full year).

Return flights

08 Jun - 16 Jun Icelandair
02 Jun - 09 Jun Icelandair
10 Jun - 25 Jun Icelandair
17 Jun - 04 Jul Icelandair
19 Jun - 08 Jul Icelandair
15 Jun - 22 Jun Icelandair
06 Jun - 24 Jun Icelandair
09 Jun - 22 Jun Icelandair
23 Jun - 30 Jun Icelandair
08 Jun - 05 Jul Icelandair
23 Jun - 12 Jul Icelandair

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

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