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

Return flights

18 Jul - 31 Jul	jetBlue
13 Jul - 20 Aug	United
12 Jul - 26 Jul	United
05 Jul - 19 Jul	Air Canada
09 Jul - 01 Aug	Air Canada
10 Jul - 01 Aug	Air Canada
02 Jul - 15 Jul	Air France
09 Jul - 01 Aug	Air France	direct

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Detroit to London in July from 768€

Return flights