Cheapest return flights from San Francisco to San Juan in June from $256

AirHint found the following cheapest return flights from San Francisco (SFO) to San Juan (SJU) in June 2025 (see full year).

Return flights

24 Jun - 30 Jun Frontier Airlines
27 Jun - 30 Jun Frontier Airlines
27 Jun - 04 Jul Frontier Airlines
30 Jun - 04 Jul Frontier Airlines
26 Jun - 01 Jul Frontier Airlines
20 Jun - 23 Jun Frontier Airlines
19 Jun - 24 Jun Frontier Airlines
22 Jun - 29 Jun Frontier Airlines
19 Jun - 23 Jun Frontier Airlines
23 Jun - 01 Jul Frontier Airlines
25 Jun - 08 Jul Frontier Airlines
26 Jun - 07 Jul Frontier Airlines
28 Jun - 06 Jul Frontier Airlines
29 Jun - 06 Jul Frontier Airlines
29 Jun - 03 Jul United
18 Jun - 22 Jun Frontier Airlines

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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