AirHint found the following cheapest return flights from Detroit (DTW) to London (LHR) in October 2025 (see full year).

Return flights

21 Oct - 15 Nov	Scandinavian Airlines
30 Oct - 03 Nov	Scandinavian Airlines
25 Oct - 27 Oct	Scandinavian Airlines
30 Oct - 02 Nov	Scandinavian Airlines
23 Oct - 15 Nov	WestJet
25 Oct - 01 Nov	Spirit Airlines
20 Oct - 04 Nov	jetBlue
23 Oct - 04 Nov	jetBlue
20 Oct - 07 Nov	jetBlue
22 Oct - 15 Nov	jetBlue
23 Oct - 30 Oct	jetBlue
24 Oct - 27 Oct	Spirit Airlines
31 Oct - 16 Nov	Scandinavian Airlines
22 Oct - 26 Oct	Spirit Airlines
22 Oct - 26 Oct	Air France	direct
24 Oct - 26 Oct	Air France	direct

Also check the deals for one-way flights from Detroit to London in October.

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 Detroit to London in October from $609

Return flights