Cheapest return flights from St. Louis to London in October from $654

AirHint found the following cheapest return flights from St. Louis (STL) to London (LGW) in October 2025 (see full year).

Return flights

16 Oct - 22 Oct Spirit Airlines
03 Oct - 10 Oct Frontier Airlines
22 Oct - 29 Oct Air Canada
16 Oct - 19 Oct Frontier Airlines

Also check the deals for one-way flights from St. Louis to London in October.

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.

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