WN4539 San AntonioSAT · 09:50 MidlandMAF · 16:00
WN4539 by Southwest Airlines flies from San Antonio (SAT) to Midland (MAF).
Same number through SAT → DAL → MAF
scheduled from SAT
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SAT and MAF are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
Tomorrow at San Antonio
ForecastThu 5 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Dallas
ForecastThu 5 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Antonio to Midland flights today
same route · Southwest AirlinesIf WN4539 is cancelled, these are the other Southwest Airlines nonstop flights from San Antonio to Midland on the same day, with scheduled departure times in SAT local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How WN4539 actually runs
Pro Flight Search has tracked every published board update for WN4539 across the SAT and MAF boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 7 confirmed landings · 6/7 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN4539 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N8549Z, N8323C, N8629A, N8931L.
Board clocks recorded as SAT and MAF published them.
Planning around WN4539? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: WN4539 San Antonio to Midland on-time performance, measured from the SAT and MAF airport boards.
https://proflightsearch.com/flight/WN4539
.