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

One-Way flights

12 Dec	Frontier Airlines
16 Dec	Frontier Airlines
13 Dec	Frontier Airlines
17 Dec	Frontier Airlines
18 Dec	Frontier Airlines	direct
30 Dec	Delta
31 Dec	Frontier Airlines	direct
25 Dec	Frontier Airlines	direct
30 Dec	Frontier Airlines	direct
22 Dec	Frontier Airlines	direct

Also check the deals for return 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 one-way flights from Cleveland to San Juan in December from 164€

One-Way flights