AirHint found the following cheapest one-way flights from San Francisco (SFO) to Barcelona (BCN) in December 2025 (see full year).
One-Way flights
| 31 Dec | TAP | ||
| 30 Dec | Lufthansa | ||
| 26 Dec | TAP | ||
| 24 Dec | Austrian Airlines | ||
| 13 Dec | Lufthansa | ||
| 25 Dec | Air Canada | ||
| 27 Dec | Austrian Airlines | ||
| 14 Dec | Austrian Airlines | ||
| 15 Dec | Aer Lingus | ||
| 16 Dec | Lufthansa |
Also check the deals for return flights from San Francisco to Barcelona 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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