AirHint found the following cheapest return flights from Cleveland (CLE) to San Jose (SJO) in September 2025 (see full year).

Return flights

08 Sep - 15 Sep	Spirit Airlines
05 Sep - 14 Sep	Spirit Airlines
05 Sep - 10 Sep	Spirit Airlines
03 Sep - 07 Sep	Spirit Airlines
18 Sep - 21 Sep	Spirit Airlines
03 Sep - 10 Sep	Spirit Airlines
26 Sep - 08 Oct	Spirit Airlines
17 Sep - 25 Sep	Frontier Airlines
10 Sep - 17 Sep	Frontier Airlines
04 Sep - 09 Sep	Spirit Airlines
09 Sep - 16 Sep	Frontier Airlines

Also check the deals for one-way flights from Cleveland to San Jose in September.

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 Jose in September from 255€

Return flights