Cheapest return flights from Barcelona to San Juan in September from $670

Best time to book flights for Barcelona (BCN) to San Juan (SJU) flights at AirHint

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

Return flights

01 Sep - 08 Sep Iberia
14 Sep - 22 Sep Iberia
08 Sep - 17 Sep Iberia
10 Sep - 17 Sep Iberia
11 Sep - 14 Sep Iberia
15 Sep - 21 Sep Iberia
08 Sep - 21 Sep Iberia
02 Sep - 07 Sep Iberia
01 Sep - 12 Sep Iberia
05 Sep - 14 Sep Finnair

Also check the deals for one-way flights from Barcelona to San Juan 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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