Cheapest one-way flights from San Francisco to Barcelona in September from 149€

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

One-Way flights

25 Sep TAP
09 Sep TAP
29 Sep TAP
24 Sep TAP
16 Sep TAP
22 Sep TAP
20 Sep TAP
30 Sep TAP
15 Sep TAP
23 Sep Iberia For Level direct

Also check the deals for return 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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