AirHint found the following cheapest return flights from Detroit (DTW) to Calgary (YYC) in December 2025 (see full year).
Return flights
| 24 Dec - 30 Dec | Frontier Airlines | ||
| 26 Dec - 02 Jan | Spirit Airlines | ||
| 14 Dec - 04 Jan | Delta |
Also check the deals for one-way flights from Detroit to Calgary in December.
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