Cheapest return flights from St. Louis to London in June from $951

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

Return flights

01 Jun - 06 Jun Frontier Airlines
07 Jun - 14 Jun Frontier Airlines
10 Jun - 17 Jun Frontier Airlines
05 Jun - 19 Jun Frontier Airlines
12 Jun - 19 Jun Frontier Airlines
15 Jun - 30 Jun Frontier Airlines
16 Jun - 30 Jun Frontier Airlines
16 Jun - 01 Jul Frontier Airlines
29 Jun - 05 Jul Frontier Airlines
17 Jun - 03 Jul Air Canada
24 Jun - 30 Jun Turkish Airlines
16 Jun - 02 Jul Turkish Airlines
26 Jun - 07 Jul Turkish Airlines
26 Jun - 08 Jul Turkish Airlines
01 Jun - 13 Jun Turkish Airlines
27 Jun - 05 Jul Iberia

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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