Cheapest return flights from San Francisco to Barcelona in September from 505€

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 September 2025 (see full year).

Return flights

02 Sep - 04 Sep LEVEL direct
21 Sep - 23 Sep LEVEL direct
13 Sep - 23 Sep LEVEL direct
16 Sep - 23 Sep LEVEL direct
02 Sep - 23 Sep LEVEL direct
30 Sep - 11 Oct LEVEL direct
23 Sep - 11 Oct LEVEL direct
07 Sep - 23 Sep Scandinavian Airlines
20 Sep - 23 Sep LEVEL direct
21 Sep - 11 Oct LEVEL direct
24 Sep - 14 Oct British Airways
30 Sep - 18 Oct Vueling Airlines direct
07 Sep - 23 Sep LEVEL direct
01 Sep - 08 Sep TAP
30 Sep - 02 Oct LEVEL direct
23 Sep - 02 Oct LEVEL direct
02 Sep - 11 Sep LEVEL direct
20 Sep - 11 Oct LEVEL direct
21 Sep - 02 Oct LEVEL direct
13 Sep - 02 Oct LEVEL direct

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

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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