Cheapest return flights from San Francisco to Barcelona in October from 520€

Best time to book flights for San Francisco (SFO) to Barcelona (BCN) flights at AirHint

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

Return flights

27 Oct - 10 Nov SWISS
15 Oct - 22 Oct TAP
06 Oct - 07 Nov TAP
02 Oct - 09 Oct LEVEL direct
30 Oct - 13 Nov United
07 Oct - 14 Oct Finnair
02 Oct - 19 Oct Vueling Airlines direct
18 Oct - 25 Oct LEVEL direct
07 Oct - 14 Oct LEVEL direct
10 Oct - 17 Oct TAP
02 Oct - 12 Oct Iberia
10 Oct - 17 Oct United direct
03 Oct - 19 Oct TAP

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

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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