Cheapest return flights from San Francisco to Barcelona in September from $395

AirHint found the following cheapest return flights from San Francisco (SFO) to Barcelona (BCN) in September 2026 (see full year).

Return flights

01 Sep - 17 Sep LEVEL direct
17 Sep - 24 Sep Iberia
22 Sep - 01 Oct Iberia
17 Sep - 24 Sep Iberia direct
20 Sep - 29 Sep Iberia
03 Sep - 10 Sep TAP
20 Sep - 29 Sep LEVEL direct
13 Sep - 18 Sep Iberia
16 Sep - 24 Sep Air Canada
24 Sep - 04 Oct LEVEL direct
22 Sep - 01 Oct LEVEL direct
03 Sep - 10 Sep LEVEL direct
13 Sep - 18 Sep United direct

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

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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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