Cheapest one-way ORD–SJU flights, September

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

One-Way flights

23 Sep Spirit Airlines direct
30 Sep Spirit Airlines direct
01 Sep Spirit Airlines direct
19 Sep Spirit Airlines direct
17 Sep Spirit Airlines direct
14 Sep Spirit Airlines direct
11 Sep Spirit Airlines direct
03 Sep Spirit Airlines direct

Also check the deals for return flights from Chicago to San Juan in September.

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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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