Cheapest one-way flights from Chicago to San Juan in March from $58

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

One-Way flights

04 Mar Frontier Airlines
02 Mar Frontier Airlines
09 Mar jetBlue
31 Mar jetBlue
18 Mar jetBlue
31 Mar United direct
23 Mar Spirit Airlines direct
17 Mar Spirit Airlines direct
18 Mar Spirit Airlines direct
24 Mar Spirit Airlines direct

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

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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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