Cheapest return flights from Cancun to San Juan in September from $259

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
24 Sep - 30 Sep Spirit Airlines
06 Sep - 18 Sep Spirit Airlines
06 Sep - 20 Sep Spirit Airlines
06 Sep - 08 Sep Spirit Airlines
20 Sep - 30 Sep Spirit Airlines
01 Sep - 08 Sep Arajet
08 Sep - 17 Sep Arajet
07 Sep - 13 Sep Spirit Airlines
04 Sep - 10 Sep Copa
24 Sep - 09 Oct Spirit Airlines
24 Sep - 10 Oct Spirit Airlines
20 Sep - 09 Oct Spirit Airlines
20 Sep - 10 Oct 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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.