AirHint found the following cheapest return flights from Detroit (DTW) to Frankfurt (FRA) in July 2025 (see full year).

Return flights

30 Jul - 06 Aug	Spirit Airlines
15 Jul - 22 Jul	Icelandair
21 Jul - 28 Jul	Spirit Airlines
07 Jul - 04 Aug	Condor
22 Jul - 07 Aug	Spirit Airlines
16 Jul - 23 Jul	jetBlue
17 Jul - 24 Jul	jetBlue
22 Jul - 29 Jul	jetBlue
15 Jul - 29 Jul	Condor
08 Jul - 05 Aug	Condor
23 Jul - 30 Jul	Spirit Airlines
14 Jul - 17 Jul	Icelandair
23 Jul - 06 Aug	Spirit Airlines
09 Jul - 23 Jul	Condor
09 Jul - 16 Jul	Condor
30 Jul - 06 Aug	Air France	direct
03 Jul - 02 Aug	jetBlue
30 Jul - 20 Aug	Air France	direct
22 Jul - 07 Aug	Air France	direct
23 Jul - 06 Aug	Delta	direct

Also check the deals for one-way flights from Detroit to Frankfurt 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 Frankfurt in July from $642

Return flights