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

Return flights

15 Jul - 18 Jul	Iberia
20 Jul - 24 Jul	Iberia
10 Jul - 16 Jul	Iberia
15 Jul - 22 Jul	Iberia
29 Jul - 12 Aug	Iberia
08 Jul - 17 Jul	Iberia
30 Jul - 14 Aug	United	direct
06 Jul - 09 Jul	Iberia
12 Jul - 19 Jul	Iberia
08 Jul - 23 Jul	Iberia
05 Jul - 11 Jul	Iberia
05 Jul - 08 Jul	Iberia
23 Jul - 06 Aug	Delta
31 Jul - 07 Aug	United	direct
29 Jul - 05 Aug	United	direct
24 Jul - 08 Aug	United
30 Jul - 10 Aug	Lufthansa	direct
14 Jul - 03 Aug	Frontier Airlines
22 Jul - 02 Aug	Iberia
19 Jul - 02 Aug	Iberia

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

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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Cheapest return flights from San Francisco to Barcelona in July from 523€

Return flights