Cheapest return flights from St. Louis to London in June from $1057

AirHint found the following cheapest return flights from St. Louis (STL) to London (LTN) in June 2026 (see full year).

Return flights

05 Jun - 14 Jun Frontier Airlines
12 Jun - 23 Jun Air Canada
01 Jun - 06 Jun Air Canada
11 Jun - 22 Jun Air Canada
24 Jun - 03 Jul Lufthansa
24 Jun - 02 Jul Lufthansa
21 Jun - 24 Jun Lufthansa
18 Jun - 18 Jul Air Canada
19 Jun - 22 Jun Air Canada

Also check the deals for one-way flights from St. Louis 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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