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

Return flights

01 Jun - 18 Jun	British Airways
01 Jun - 19 Jun	British Airways
01 Jun - 05 Jun	British Airways
02 Jun - 11 Jun	British Airways
10 Jun - 16 Jun	British Airways
10 Jun - 15 Jun	British Airways
12 Jun - 20 Jun	British Airways
11 Jun - 14 Jun	British Airways
23 Jun - 30 Jun	British Airways
17 Jun - 24 Jun	British Airways
01 Jun - 16 Jul	Icelandair
01 Jun - 17 Jul	Icelandair
30 Jun - 11 Jul	Icelandair
27 Jun - 12 Jul	British Airways
27 Jun - 04 Jul	jetBlue
28 Jun - 05 Jul	jetBlue
26 Jun - 11 Jul	jetBlue
28 Jun - 18 Jul	Icelandair

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

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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Cheapest return flights from Washington to London in June from $874

Return flights