Cheapest return flights from St. Louis to London in December from $1285

Best time to book flights for St. Louis (STL) to London (LGW) flights at AirHint

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

Return flights

26 Dec - 01 Jan Southern Airways Express
18 Dec - 30 Dec Southern Airways Express
20 Dec - 30 Dec Southern Airways Express
28 Dec - 02 Jan Turkish Airlines
15 Dec - 21 Dec Turkish Airlines
24 Dec - 31 Dec Iberia

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

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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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