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

Return flights

01 Oct - 05 Oct	Spirit Airlines
03 Oct - 10 Oct	Spirit Airlines
16 Oct - 30 Oct	Spirit Airlines
04 Oct - 07 Oct	Spirit Airlines
04 Oct - 10 Oct	Spirit Airlines
06 Oct - 18 Oct	Spirit Airlines
25 Oct - 01 Nov	Icelandair
03 Oct - 12 Oct	Spirit Airlines
15 Oct - 22 Oct	Spirit Airlines
08 Oct - 15 Oct	Spirit Airlines
14 Oct - 08 Nov	Spirit Airlines
16 Oct - 20 Oct	Spirit Airlines
17 Oct - 08 Nov	Spirit Airlines
31 Oct - 22 Nov	Spirit Airlines
31 Oct - 22 Nov	Air France	direct
25 Oct - 01 Nov	Delta	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 489€

Return flights