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

Return flights

04 Dec - 18 Dec	Turkish Airlines
23 Dec - 09 Jan	Condor
25 Dec - 09 Jan	Condor
07 Dec - 21 Dec	Turkish Airlines
23 Dec - 10 Jan	Condor
23 Dec - 06 Jan	Condor
25 Dec - 10 Jan	Condor
25 Dec - 06 Jan	Condor
23 Dec - 08 Jan	Condor
25 Dec - 08 Jan	Condor
24 Dec - 09 Jan	Delta	direct
24 Dec - 07 Jan	Delta	direct
07 Dec - 21 Dec	Lufthansa	direct
04 Dec - 18 Dec	Lufthansa	direct
21 Dec - 26 Dec	Air Canada
21 Dec - 26 Dec	Lufthansa	direct

Also check the deals for one-way flights from Detroit to Frankfurt in December.

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 December from $665

Return flights