Cheapest return flights from San Diego to Barcelona in September from $607

Best time to book flights for San Diego (SAN) to Barcelona (BCN) flights at AirHint

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

Return flights

23 Sep - 30 Sep United
02 Sep - 18 Sep Air Canada
14 Sep - 24 Sep United
03 Sep - 10 Sep United
06 Sep - 24 Sep Delta
08 Sep - 15 Sep United
12 Sep - 24 Sep United
06 Sep - 13 Sep Air Canada
13 Sep - 20 Sep United
18 Sep - 25 Sep United

Also check the deals for one-way flights from San Diego 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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