Cheapest return flights from San Francisco to Barcelona in September from $359

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

Return flights

16 Sep - 23 Sep Iberia For Level direct
16 Sep - 02 Oct Iberia For Level direct
16 Sep - 23 Oct Iberia For Level direct
23 Sep - 02 Oct Iberia For Level direct
23 Sep - 30 Sep Iberia For Level direct
16 Sep - 30 Sep Iberia For Level direct
27 Sep - 18 Oct Iberia For Level direct
01 Sep - 09 Sep TAP
03 Sep - 17 Sep TAP
07 Sep - 16 Sep Vueling Airlines direct
11 Sep - 18 Sep TAP
22 Sep - 07 Oct Air Canada
30 Sep - 07 Oct Iberia
30 Sep - 07 Oct Iberia For Level direct
24 Sep - 08 Oct Air Canada
24 Sep - 01 Oct Air Canada
29 Sep - 14 Oct Air Canada
20 Sep - 29 Sep Air Canada
08 Sep - 23 Sep TAP
15 Sep - 29 Sep TAP

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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