AirHint found the following cheapest return flights from Chicago (ORD) to Bucharest (OTP) in January 2026 (see full year).
Return flights
| 22 Jan - 05 Feb | LOT | ||
| 14 Jan - 21 Jan | Lufthansa | ||
| 19 Jan - 02 Feb | Spirit Airlines | ||
| 12 Jan - 27 Jan | SWISS | ||
| 20 Jan - 05 Feb | British Airways | ||
| 03 Jan - 10 Jan | Austrian Airlines |
Also check the deals for one-way flights from Chicago to Bucharest in January.
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