AirHint found the following cheapest return flights from Barcelona (BCN) to San Juan (SJU) in May 2026 (see full year).

Return flights

14 May - 28 May	Iberia
04 May - 18 May	LEVEL
04 May - 17 May	LEVEL
04 May - 12 May	LEVEL
04 May - 07 May	LEVEL
14 May - 24 May	Iberia
21 May - 31 May	Iberia
09 May - 16 May	Vueling Airlines
16 May - 24 May	Iberia
16 May - 25 May	Iberia
30 May - 07 Jun	Condor

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

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 Barcelona to San Juan in May from 511€

Return flights