Your next trip, last seen at €112
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
Short answer
We have seen Southwest Airlines fares from San Antonio to Chicago, non-stop. The lowest fare our own searches returned is €112, seen on 18 Sep 2026. The average across the fares we caught is €157. October 2026 is the cheapest month in our observations, at €112. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
Short answer
We have seen Southwest Airlines fares from San Antonio to Chicago, non-stop. The lowest fare our own searches returned is €112, seen on 18 Sep 2026. The average across the fares we caught is €157. October 2026 is the cheapest month in our observations, at €112. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
About this route
Explore the fares we observed from San Antonio to Chicago. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,694 km
- Reported fastest flight
- 2h 55m
- Airlines seen
- Southwest Airlines
- Alternative airports
- CGX, DPA, MDW, PWK, RFD
Route-level information; individual journeys vary.
Published schedules report non-stop service with Southwest Airlines. Check current timetables.
A clearer picture of your fare
Frequently asked
How much is a flight from San Antonio to Chicago?
The lowest fare we have observed is €112, found on 18 Sep 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from San Antonio to Chicago?
In our observations October 2026 is the cheapest month so far, at €112.
Are there direct flights from San Antonio to Chicago?
Yes. We have seen non-stop flights on this route, flown by Southwest Airlines.
Which airlines fly from San Antonio to Chicago?
These are the carriers we have seen on the route: Southwest Airlines.
How many of the observed San Antonio to Chicago fares were non-stop?
18 of the 25 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 18 Sep 2026