Direct (nonstop) flights from San Antonio to Chicago
1 airline flys nonstop from San Antonio International (SAT) to Chicago Midway International (MDW). It's 1,037 miles (1,669 km), about 2h 35m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from San Antonio to Chicago with one stop · direct emits 175 kg CO₂ per passenger
Looking for the return flight?
MDW → SAT: Flights from Chicago to San AntonioOther direct flights from San Antonio
Direct flights from Chicago (MDW)
Frequently Asked Questions
How long is the direct flight from San Antonio to Chicago?
A nonstop flight from San Antonio (SAT) to Chicago (MDW) takes approximately 2 hours and 35 minutes. The distance is 1,037 miles (1,669 km).
Which airlines fly nonstop from San Antonio to Chicago?
Just Southwest Airlines.
Is there a nonstop flight from San Antonio to Chicago?
Yes. 1 airline: Southwest Airlines.
How far is San Antonio from Chicago?
The flight distance from San Antonio to Chicago is 1,037 miles (1,669 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from San Antonio to Chicago?
At 2h 35m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from San Antonio to Chicago?
Roughly 175 kg CO2 per passenger one-way. That's about the same as driving 875 km.
Is the return flight from Chicago to San Antonio also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from San Antonio to Chicago?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at San Antonio International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.