AirHint found the following cheapest return flights from Cleveland (CLE) to San Juan (SJU) in December 2025 (see full year).

Return flights

18 Dec - 22 Dec	Delta
18 Dec - 24 Dec	Delta
02 Dec - 06 Dec	Delta
03 Dec - 09 Dec	Southwest Airlines
03 Dec - 10 Dec	Delta
11 Dec - 15 Dec	jetBlue
11 Dec - 14 Dec	jetBlue
18 Dec - 21 Dec	Delta
12 Dec - 18 Dec	Frontier Airlines
12 Dec - 15 Dec	Frontier Airlines
15 Dec - 10 Jan	Frontier Airlines
18 Dec - 09 Jan	Frontier Airlines
25 Dec - 01 Jan	Frontier Airlines	direct
23 Dec - 02 Jan	United
30 Dec - 05 Jan	jetBlue
23 Dec - 02 Jan	Frontier Airlines	direct
28 Dec - 04 Jan	Frontier Airlines
20 Dec - 05 Jan	Frontier Airlines

Also check the deals for one-way flights from Cleveland to San Juan in December.

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 Cleveland to San Juan in December from $225

Return flights