Cheapest one-way flights from Chicago to San Juan in March from $74

Best time to book flights for Chicago (ORD) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest one-way flights from Chicago (ORD) to San Juan (SJU) in March 2025 (see full year).

One-Way flights

31 Mar Spirit Airlines
26 Mar Frontier Airlines
27 Mar Frontier Airlines
31 Mar Spirit Airlines direct
30 Mar Spirit Airlines direct
27 Mar Spirit Airlines direct
28 Mar Frontier Airlines
29 Mar Frontier Airlines
25 Mar Frontier Airlines
26 Mar Spirit Airlines direct

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

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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