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

Return flights

09 Dec - 23 Dec	Lufthansa
06 Dec - 20 Dec	British Airways
23 Dec - 28 Dec	Lufthansa
22 Dec - 28 Dec	Lufthansa
23 Dec - 02 Jan	Lufthansa
24 Dec - 02 Jan	Lufthansa
26 Dec - 03 Jan	Scandinavian Airlines
19 Dec - 21 Jan	Lufthansa

Also check the deals for one-way flights from San Francisco to Budapest in December.

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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Cheapest return flights from San Francisco to Budapest in December from $548

Return flights