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

Return flights

18 Sep - 06 Oct	Frontier Airlines
24 Sep - 30 Sep	Frontier Airlines
17 Sep - 06 Oct	Scandinavian Airlines
17 Sep - 05 Oct	Spirit Airlines
18 Sep - 05 Oct	Spirit Airlines
24 Sep - 30 Sep	Virgin Atlantic	direct
17 Sep - 06 Oct	Delta	direct
17 Sep - 05 Oct	Delta	direct
18 Sep - 06 Oct	Delta	direct
18 Sep - 05 Oct	Delta	direct

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

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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Cheapest return flights from Atlanta to Manchester in September from $640

Return flights