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

Return flights

27 Jul - 27 Aug	Spirit Airlines
15 Jul - 26 Aug	Spirit Airlines
18 Jul - 29 Jul	Spirit Airlines
17 Jul - 31 Jul	Spirit Airlines
25 Jul - 10 Aug	WestJet
26 Jul - 09 Aug	Spirit Airlines
16 Jul - 31 Jul	Spirit Airlines
04 Jul - 18 Jul	Spirit Airlines
01 Jul - 15 Jul	Spirit Airlines
20 Jul - 30 Jul	Lufthansa
14 Jul - 21 Jul	Delta	direct
08 Jul - 05 Aug	Air France
10 Jul - 15 Jul	TAP
07 Jul - 18 Jul	Air Canada
11 Jul - 18 Jul	Air Canada

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 $791

Return flights