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

Return flights

08 Sep - 15 Sep	Icelandair
10 Sep - 17 Sep	Icelandair
03 Sep - 09 Sep	Icelandair
09 Sep - 07 Oct	Frontier Airlines
09 Sep - 16 Sep	Aer Lingus
27 Sep - 10 Oct	Frontier Airlines
18 Sep - 22 Sep	Scandinavian Airlines
01 Sep - 07 Sep	Frontier Airlines
01 Sep - 03 Oct	Lufthansa
11 Sep - 18 Sep	Icelandair
03 Sep - 10 Sep	Icelandair
10 Sep - 17 Sep	Virgin Atlantic	direct
24 Sep - 01 Oct	United
17 Sep - 24 Sep	Icelandair
30 Sep - 07 Oct	United
30 Sep - 17 Oct	United
27 Sep - 11 Oct	Frontier Airlines
28 Sep - 08 Oct	Virgin Atlantic
26 Sep - 10 Oct	United
25 Sep - 30 Oct	Air Canada

Also check the deals for one-way flights from Minneapolis to London 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 Minneapolis to London in September from 534€

Return flights