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

Return flights

24 Jan - 26 Jan	Scandinavian Airlines
09 Jan - 24 Jan	Scandinavian Airlines
13 Jan - 23 Jan	Scandinavian Airlines
12 Jan - 26 Jan	Scandinavian Airlines
18 Jan - 26 Jan	Scandinavian Airlines
12 Jan - 25 Jan	Scandinavian Airlines
06 Jan - 31 Jan	Spirit Airlines
05 Jan - 05 Feb	Spirit Airlines
15 Jan - 26 Jan	jetBlue
02 Jan - 24 Jan	jetBlue
22 Jan - 19 Feb	Delta
01 Jan - 12 Jan	Delta

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Detroit to London in January from $464

Return flights