Southwest AirlinesWN50% on time
Flights WN586 00:00 Mo Th Fr · WN1324 03:55 Mo Th Fr · WN3946 04:25 Tu We · WN3503 06:10 Sa Su
live
Direct flights from San Antonio (SAT) to Chicago (MDW): 7 nonstop departures observed each week across 1 airline. 50% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 19 minutes late. No cancellations were recorded across the 6 tracked flights. The nonstop covers 1,668 km, an estimated 2 hours 38 minutes in the air. Measured by Pro Flight Search from live flight boards at San Antonio and Chicago. Updated 18 September 2026 at 00:53 UTC.
SAT
San Antonio
busy · +16
MDW
Chicago
busy · +18
1,668 km · ~2h 38m est.
Runs rough · 1 airline · 7x weekly · nonstop
50% on time
of the last 6 operated SAT → MDW flights arrived within 15 minutes
Median arrival delay is +19 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+19 minacross the last 6 operated legs
Flight time~2h 38mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at MDW: 44% odds of a 15+ minute delay and around +34 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the San Antonio to Chicago route actually runs
Pro Flight Search records official board updates for nonstop SAT to MDW flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — San Antonio (SAT) to Chicago (MDW) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SAT-MDW
SAT to MDW questions
Is SAT–MDW running on time right now?
Mostly on schedule. The arrival side at MDW is the weaker end, route health score 71/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SAT–MDW?
Operators schedule morning departures around 00:00 from SAT. Earlier flights typically land before destination-airport delays accumulate later in the day; check the MDW delay card to confirm conditions when you'd arrive.
How long is the flight from SAT to MDW?
Great-circle distance is 1,668 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 148–173 min gate-to-gate on this route.
How often does SAT–MDW fly?
Southwest Airlines runs the route with about 16 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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