Cheap flights from Chicago to San Antonio
From 178 USD — compare hundreds of airlines
Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Chicago to San Antonio, a about 1,694 km route (around 2h 37m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as American Airlines, United Airlines, Southwest Airlines operate this route.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Chicago to San Antonio?
Prices vary by season; use the price calendar to find the cheapest month.
How long is the flight from Chicago to San Antonio?
A nonstop flight takes about 2h 37m and covers around 1,694 km. Connecting itineraries take longer.
Are there direct flights from Chicago to San Antonio?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Chicago to San Antonio?
American Airlines, United Airlines, Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book Chicago–San Antonio flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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Chicago → San Antonio · Live fares from 100+ sites — free, with no hidden fees.