Cheapest return flights from San Francisco to Barcelona in October from $433

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

Return flights

29 Oct - 12 Nov American Airlines
30 Oct - 12 Nov American Airlines
30 Oct - 06 Nov American Airlines
29 Oct - 22 Nov British Airways
28 Oct - 22 Nov British Airways
31 Oct - 12 Nov TAP
30 Oct - 10 Nov Air Canada
31 Oct - 07 Nov TAP
30 Oct - 22 Nov British Airways
31 Oct - 22 Nov TAP
28 Oct - 31 Oct Turkish Airlines

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

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