Cheapest return flights from San Diego to Barcelona in May from 769€

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 May 2025 (see full year).

Return flights

09 May - 16 May Frontier Airlines
08 May - 11 May Frontier Airlines
08 May - 22 May Frontier Airlines
11 May - 18 May Alaska Airlines
17 May - 24 May Alaska Airlines
16 May - 23 May Frontier Airlines
06 May - 13 May United
18 May - 25 May Alaska Airlines
01 May - 08 May United
19 May - 26 May Condor
26 May - 30 Jun Alaska Airlines
26 May - 02 Jun Condor
30 May - 13 Jun Air Canada
31 May - 07 Jun United

Also check the deals for one-way flights from San Diego to Barcelona in May.

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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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