Cheapest return flights from San Francisco to Barcelona in December from 342€

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

Return flights

01 Dec - 09 Dec TAP
31 Dec - 14 Jan TAP
01 Dec - 15 Dec TAP
09 Dec - 16 Dec United
02 Dec - 16 Dec United
15 Dec - 22 Dec TAP
28 Dec - 11 Jan United
05 Dec - 19 Dec United
23 Dec - 30 Dec Air Canada
13 Dec - 20 Dec SWISS
16 Dec - 23 Dec Air Canada
17 Dec - 24 Dec TAP
25 Dec - 01 Jan Air Canada
26 Dec - 02 Jan TAP
29 Dec - 05 Jan TAP
27 Dec - 03 Jan TAP
11 Dec - 02 Jan Delta
18 Dec - 07 Jan SWISS
18 Dec - 01 Jan United
25 Dec - 03 Jan United

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

Skyscanner

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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