Cheapest return flights from St. Louis (STL) to London (LHR), August

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
19 Aug 25 Aug Finnair
Direct Flight
25 Aug 02 Sep Air Canada
18 Aug 25 Aug Delta
23 Aug 26 Aug Frontier Airlines
18 Aug 25 Aug British Airways
Direct Flight
16 Aug 30 Aug Air Canada
21 Aug 25 Aug Delta
21 Aug 06 Sep Air Canada
21 Aug 25 Aug British Airways
Direct Flight
21 Aug 28 Aug American Airlines
Direct Flight
09 Aug 02 Sep Finnair
Direct Flight
14 Aug 28 Aug United
13 Aug 27 Aug United
28 Aug 04 Sep Iberia
28 Aug 04 Sep British Airways
Direct Flight
21 Aug 06 Sep British Airways
Direct Flight
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deals for one-way flights from St. Louis to London in August.

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Updated Jul 17, 2026.

About these fares

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