Cheapest return flights from Cancun to San Juan in September from $287

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

Return flights

06 Sep - 13 Sep Arajet
04 Sep - 09 Sep Copa
06 Sep - 09 Sep Spirit Airlines
10 Sep - 19 Sep Copa
06 Sep - 10 Sep Spirit Airlines
06 Sep - 17 Sep Spirit Airlines
06 Sep - 24 Sep Spirit Airlines
06 Sep - 15 Sep Spirit Airlines
12 Sep - 16 Sep Copa
06 Sep - 14 Sep Spirit Airlines

Also check the deals for one-way flights from Cancun 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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