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

Return flights

22 Jul - 26 Aug	jetBlue
23 Jul - 12 Aug	Turkish Airlines
22 Jul - 29 Jul	Air Canada
23 Jul - 03 Aug	Spirit Airlines
07 Jul - 15 Jul	Delta
24 Jul - 04 Aug	United
02 Jul - 16 Jul	Air France
09 Jul - 19 Jul	Air Canada
23 Jul - 08 Aug	jetBlue
09 Jul - 19 Jul	Virgin Atlantic	direct
03 Jul - 06 Jul	WestJet

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

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 July from 679€

Return flights