Cheapest return flights from Chicago to San Jose in September from 278€

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

Return flights

09 Sep - 23 Sep Spirit Airlines
09 Sep - 24 Sep Spirit Airlines
09 Sep - 25 Sep Spirit Airlines
09 Sep - 20 Sep Spirit Airlines
09 Sep - 28 Sep Spirit Airlines
09 Sep - 15 Sep Spirit Airlines
10 Sep - 23 Sep Spirit Airlines
10 Sep - 24 Sep Spirit Airlines
10 Sep - 25 Sep Spirit Airlines
10 Sep - 20 Sep Spirit Airlines
29 Sep - 06 Oct Spirit Airlines
24 Sep - 01 Oct Spirit Airlines
16 Sep - 06 Oct Spirit Airlines
24 Sep - 06 Oct Spirit Airlines
22 Sep - 06 Oct Spirit Airlines
17 Sep - 06 Oct Spirit Airlines
20 Sep - 06 Oct Spirit Airlines
29 Sep - 08 Oct Spirit Airlines
27 Sep - 06 Oct Spirit Airlines
28 Sep - 06 Oct Spirit Airlines

Also check the deals for one-way flights from Chicago to San Jose 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.

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