Cheapest return flights from Atlanta to London in September from $500

AirHint found the following cheapest return flights from Atlanta (ATL) to London (LHR) in September 2025 (see full year).

Return flights

10 Sep - 19 Sep Spirit Airlines
09 Sep - 23 Sep Spirit Airlines
24 Sep - 28 Sep Scandinavian Airlines
07 Sep - 12 Sep Frontier Airlines
20 Sep - 29 Sep Scandinavian Airlines
20 Sep - 28 Sep Scandinavian Airlines
12 Sep - 26 Sep Scandinavian Airlines
19 Sep - 26 Sep Scandinavian Airlines
02 Sep - 09 Sep Frontier Airlines
03 Sep - 22 Sep Scandinavian Airlines
19 Sep - 04 Oct Scandinavian Airlines
28 Sep - 05 Oct United
28 Sep - 05 Oct British Airways direct
24 Sep - 04 Oct Delta direct

Also check the deals for one-way flights from Atlanta to London in September.

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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