AirHint found the following cheapest return flights from Detroit (DTW) to Frankfurt (FRA) in September 2026 (see full year).
Return flights
| 17 Sep - 30 Sep | Turkish Airlines | ||
| 03 Sep - 17 Sep | Turkish Airlines | ||
| 26 Sep - 03 Oct | Turkish Airlines | ||
| 03 Sep - 17 Sep | Lufthansa | direct | |
| 17 Sep - 30 Sep | Lufthansa | direct | |
| 26 Sep - 03 Oct | Delta | direct |
Also check the deals for one-way flights from Detroit to Frankfurt in September.
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