Cheapest return flights from San Francisco to San Juan in June from $378

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

Return flights

02 Jun - 06 Jun jetBlue
03 Jun - 10 Jun Frontier Airlines
22 Jun - 25 Jun Southwest Airlines
05 Jun - 09 Jun Southwest Airlines
09 Jun - 16 Jun jetBlue
26 Jun - 30 Jun United
26 Jun - 03 Jul United
04 Jun - 14 Jun Frontier Airlines
25 Jun - 25 Jun United
22 Jun - 28 Jun Southwest Airlines
24 Jun - 30 Jun jetBlue

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

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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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