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

Return flights

30 Jun - 07 Jul	Air Canada
01 Jun - 13 Jun	SWISS
03 Jun - 07 Jun	United
09 Jun - 23 Jun	SWISS
09 Jun - 23 Jun	Finnair	direct
22 Jun - 25 Jun	Air Canada
10 Jun - 24 Jun	Air Canada
14 Jun - 24 Jun	United
08 Jun - 15 Jun	SWISS
09 Jun - 19 Jun	SWISS
02 Jun - 16 Jun	WestJet
20 Jun - 03 Jul	British Airways
13 Jun - 11 Jul	LEVEL	direct

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

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 June from 649€

Return flights