Cheapest return flights from Chicago to Bucharest in December from $585

AirHint found the following cheapest return flights from Chicago (ORD) to Bucharest (OTP) in December 2025 (see full year).

Return flights

29 Dec - 12 Jan British Airways
26 Dec - 09 Jan Lufthansa
01 Dec - 08 Dec United
06 Dec - 13 Dec United
11 Dec - 18 Dec United
31 Dec - 07 Jan United
16 Dec - 23 Dec United
06 Dec - 01 Jan British Airways
26 Dec - 02 Jan United
18 Dec - 08 Jan jetBlue
13 Dec - 04 Jan Austrian Airlines
21 Dec - 28 Dec United

Also check the deals for one-way flights from Chicago to Bucharest in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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