AirHint found the following cheapest return flights from Cancun (CUN) to San Juan (SJU) in April 2026 (see full year).

Return flights

28 Apr - 08 May	Spirit Airlines
28 Apr - 06 May	Spirit Airlines
30 Apr - 06 May	Spirit Airlines
30 Apr - 08 May	Spirit Airlines
28 Apr - 14 May	Spirit Airlines
30 Apr - 14 May	Spirit Airlines
29 Apr - 08 May	Spirit Airlines
01 Apr - 14 Apr	Spirit Airlines
29 Apr - 06 May	Spirit Airlines
28 Apr - 04 May	Spirit Airlines
19 Apr - 26 Apr	Copa
27 Apr - 06 May	Copa
04 Apr - 09 Apr	Copa
21 Apr - 27 Apr	Copa
01 Apr - 11 Apr	Copa
21 Apr - 24 Apr	Spirit Airlines
01 Apr - 05 Apr	Copa
01 Apr - 09 Apr	Spirit Airlines
21 Apr - 25 Apr	Spirit Airlines
01 Apr - 06 Apr	Spirit Airlines

Also check the deals for one-way flights from Cancun to San Juan in April.

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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Cheapest return flights from Cancun to San Juan in April from 249€

Return flights