AirHint found the following cheapest return flights from Calgary (YYC) to Bucharest (OTP) in December 2025 (see full year).
Return flights
| 13 Dec - 08 Jan | Air Transat | ||
| 12 Dec - 01 Jan | WestJet | ||
| 21 Dec - 31 Dec | Delta |
Also check the deals for one-way flights from Calgary to Bucharest in December.
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