Cheapest return flights from San Francisco to Bucharest in December from $581

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

Return flights

10 Dec - 07 Jan Lufthansa
08 Dec - 06 Jan SWISS
15 Dec - 07 Jan Lufthansa
16 Dec - 30 Dec Delta
17 Dec - 05 Jan Austrian Airlines
12 Dec - 04 Jan Air Canada
20 Dec - 05 Jan Sun Country Airlines
18 Dec - 04 Jan Hawaiian Airlines
19 Dec - 05 Jan Sun Country Airlines
19 Dec - 02 Jan Sun Country Airlines

Also check the deals for one-way flights from San Francisco 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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