AirHint found the following cheapest return flights from Detroit (DTW) to London (LHR) in January 2026 (see full year).

Return flights

09 Jan - 11 Jan	Spirit Airlines
08 Jan - 20 Jan	Spirit Airlines
26 Jan - 30 Jan	Spirit Airlines
12 Jan - 15 Jan	jetBlue
12 Jan - 07 Feb	Spirit Airlines
15 Jan - 07 Feb	Spirit Airlines
05 Jan - 05 Feb	Delta
03 Jan - 24 Jan	Iberia

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

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 January from 439€

Return flights