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Cheapest one-way flights from San Diego (SAN) to San Juan (SJU), September

Select a price to book. see full year.

Dates, airline, and price
Dates	Airline	Price
04 Sep	Southwest Airlines
22 Sep	United
18 Sep	United
19 Sep	United
20 Sep	United
23 Sep	United
24 Sep	United
25 Sep	United
26 Sep	United
27 Sep	United

deals for return flights from San Diego to San Juan in September.

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Updated Jul 20, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from San Diego (SAN) to San Juan (SJU), September

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