Cheapest return flights from San Diego to San Juan in September from 298€

AirHint found the following cheapest return flights from San Diego (SAN) to San Juan (SJU) in September 2025 (see full year).

Return flights

25 Sep - 29 Sep United
13 Sep - 17 Sep United
05 Sep - 12 Sep United
19 Sep - 26 Sep United
20 Sep - 04 Oct Delta
12 Sep - 17 Sep United
12 Sep - 20 Sep United
01 Sep - 07 Sep United
02 Sep - 07 Sep United
11 Sep - 16 Sep Southwest Airlines
05 Sep - 15 Sep Alaska Airlines

Also check the deals for one-way flights from San Diego 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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