Route Price Intelligence
Cheap Flights From Chicago to San Juan
Live pricing benchmarks, monthly patterns, and historical lows for this route.
San Juan is $208 round trip from Chicago Midway on Frontier, compared to the roughly $575 this route usually commands, nearly 64% off. Puerto Rico delivers beaches, rainforest hikes, and no passport required, all with just one stop. This is comfortably one of the best fares we have tracked on this route.
✓ 6 date combinations found at this price
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Best Time to Fly from Chicago to San Juan
The cheapest time to fly from Chicago to San Juan is typically August, when fares average around $266. The most expensive month tends to be March at around $477. For the best deals, consider flying in August, October, September.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route