Cheapest return flights from Washington to London in June from $821

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

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

Return flights

03 Jun - 12 Jun ITA Airways
04 Jun - 12 Jun SWISS
04 Jun - 11 Jun SWISS
10 Jun - 17 Jun Lufthansa
16 Jun - 21 Jun ITA Airways
23 Jun - 30 Jun ITA Airways
05 Jun - 16 Jun ITA Airways
03 Jun - 16 Jun Delta
09 Jun - 18 Jun ITA Airways
12 Jun - 19 Jun KLM
23 Jun - 10 Jul SWISS
22 Jun - 07 Jul ITA Airways
23 Jun - 07 Jul ITA Airways
30 Jun - 08 Jul SWISS
29 Jun - 08 Jul SWISS
22 Jun - 06 Jul ITA Airways
30 Jun - 14 Jul SWISS
29 Jun - 14 Jul SWISS
30 Jun - 07 Jul SWISS
23 Jun - 06 Jul ITA Airways

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

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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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