Cheapest return flights from San Francisco to San Juan in October from 307€

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

Return flights

26 Oct - 02 Nov Frontier Airlines
01 Oct - 08 Oct United
17 Oct - 28 Oct United
16 Oct - 24 Oct Frontier Airlines
31 Oct - 04 Nov United
24 Oct - 27 Oct Frontier Airlines
16 Oct - 21 Oct Frontier Airlines
10 Oct - 21 Oct Frontier Airlines
10 Oct - 14 Oct United

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

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.