Cheapest return flights from San Francisco to Barcelona in September from 346€

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

Return flights

28 Sep - 23 Oct Iberia For Level direct
28 Sep - 19 Oct Iberia For Level direct
23 Sep - 02 Oct Iberia For Level direct
21 Sep - 02 Oct Iberia
21 Sep - 18 Oct Iberia
23 Sep - 30 Sep Iberia For Level direct
21 Sep - 02 Oct Iberia For Level direct
22 Sep - 30 Sep Air Canada
21 Sep - 30 Sep United direct
30 Sep - 08 Oct United
30 Sep - 14 Oct United
21 Sep - 01 Oct United direct
08 Sep - 15 Sep TAP
10 Sep - 15 Sep TAP
02 Sep - 16 Sep TAP
27 Sep - 23 Oct Iberia direct
23 Sep - 28 Sep Iberia For Level direct
09 Sep - 16 Sep Iberia For Level direct
16 Sep - 23 Sep Iberia For Level direct
03 Sep - 15 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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