Cheapest one-way flights from San Francisco to San Juan in October from 149€

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

One-Way flights

22 Oct Frontier Airlines
18 Oct Frontier Airlines
27 Oct Frontier Airlines
17 Oct Frontier Airlines
31 Oct Frontier Airlines
08 Oct Frontier Airlines
15 Oct Frontier Airlines
03 Oct Frontier Airlines
19 Oct Frontier Airlines
04 Oct Delta

Also check the deals for return 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.

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