Cheapest return flights from Chicago to San Juan in September from 214€

AirHint found the following cheapest return flights from Chicago (ORD) to San Juan (SJU) in September 2026 (see full year).

Return flights

01 Sep - 02 Sep Spirit Airlines direct
01 Sep - 05 Sep Spirit Airlines direct
01 Sep - 06 Sep Frontier Airlines
03 Sep - 05 Sep Spirit Airlines direct
01 Sep - 06 Sep Spirit Airlines direct
05 Sep - 11 Sep Delta
04 Sep - 05 Sep Spirit Airlines direct
03 Sep - 06 Sep Spirit Airlines direct
14 Sep - 21 Sep Delta
25 Sep - 28 Sep Delta

Also check the deals for one-way flights from Chicago to San Juan in September.

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