Cheapest one-way flights from Chicago to San Juan in May from $192
AirHint found the following cheapest one-way flights from Chicago (MDW) to San Juan (SJU) in May 2025 (see full year).
One-Way flights
| 14 May | Southwest Airlines | ||
| 17 May | Frontier Airlines |
Also check the deals for return flights from Chicago to San Juan in May.
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.
