WN4575 MilwaukeeMKE · 20:15 PhoenixPHX · 22:00
WN4575 by Southwest Airlines flies from Milwaukee (MKE) to Phoenix (PHX).
scheduled from MKE
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at MKE and PHX 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 Milwaukee
ForecastFri 6 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 Phoenix
ForecastFri 6 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 Milwaukee to Phoenix flights today
same route · Southwest AirlinesIf WN4575 is cancelled, these are the other Southwest Airlines nonstop flights from Milwaukee to Phoenix on the same day, with scheduled departure times in MKE 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 WN4575 actually runs
Pro Flight Search has tracked every published board update for WN4575 across the MKE and PHX boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: left heavily delayed (~59 min) but landed noticeably late (~30 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how WN4575 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: N8850Q.
Board clocks recorded as MKE and PHX published them.
Planning around WN4575? 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: WN4575 Milwaukee to Phoenix on-time performance, measured from the MKE and PHX airport boards.
https://proflightsearch.com/flight/WN4575
.