Cheapest one-way flights from Los Angeles to San Juan in September from 109€

AirHint found the following cheapest one-way flights from Los Angeles (LAX) to San Juan (SJU) in September 2025 (see full year).

One-Way flights

03 Sep Spirit Airlines
25 Sep Frontier Airlines
07 Sep Frontier Airlines
01 Sep Frontier Airlines
14 Sep Frontier Airlines
21 Sep Frontier Airlines
24 Sep Spirit Airlines
10 Sep Spirit Airlines
16 Sep Delta
12 Sep Spirit Airlines

Also check the deals for return flights from Los Angeles to San Juan in September.

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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