Cheap Flights from Chicago to San Juan — $163

Chicago is served by two main airports with distinct roles. O’Hare International (ORD) is the city’s primary international hub and a major connecting point for full-service carriers such as United and American, so fares can be competitive for long-haul and connecting itineraries. It sits about 17–20 miles northwest of downtown; the Blue Line ‘L’ takes roughly 45–50 minutes and fares are typically in the local transit range, while taxis or rideshares can take 30–60 minutes depending on traffic and cost more. Midway (MDW) is a smaller, more budget-leaning airport about 10 miles southwest, often favored by low-cost and leisure carriers; travel to downtown usually takes 20–35 minutes by CTA Orange Line or 25–40 minutes by road. O’Hare offers extensive international routes and many amenities but can be busier and involve longer security or connection times; Midway can be quicker to navigate and cheaper on short domestic flights but has fewer long-haul options.

Luis Muñoz Marín International Airport (SJU) is San Juan’s primary international gateway and typically functions as the island’s main hub for both legacy carriers and regional airlines, handling most long-haul and nonstop flights. Located about 8 miles (roughly 15–30 minutes) east of Old San Juan, it’s reachable by taxi, ride-hail or shared van services; expect fares generally to fall in the moderate range depending on time and vehicle. Ground transit includes private shuttles and car rentals; public buses are available but can be slower. Advantages include frequent connections and full-service facilities; downsides can be crowds and occasional traffic into the city during peak times. Fernando Luis Ribas Dominicci Airport (Isla Grande, SIG) is a smaller, centrally located airport serving mainly regional, private and commuter flights, often used for short hops and general aviation rather than major international routes. Sitting within San Juan’s Isleta de San Juan, it’s typically only a few minutes from downtown—reachable by taxi or local cab services with short travel times and modest fares. The airport is convenient for business travelers or private flyers but offers limited commercial options and fewer amenities compared with the larger international airport. Its compact size can mean quicker check-ins but fewer flight choices.

The minimum one-way ticket price from Chicago to San Juan is $145 (June 2026), while the maximum is $222 (December 2026). On average, a ticket costs $184–$222.

The route Chicago — San Juan is served by several airlines: American Airlines, United Airlines, and Southwest Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $163 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.