AirHint found the following cheapest return flights from Cleveland (CLE) to Bucharest (OTP) in December 2025 (see full year).
Return flights
| 29 Dec - 24 Jan | British Airways | ||
| 28 Dec - 17 Jan | British Airways | ||
| 19 Dec - 10 Jan | Frontier Airlines | ||
| 19 Dec - 26 Dec | Frontier Airlines |
Also check the deals for one-way flights from Cleveland to Bucharest in December.
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