WN3239Southwest Airlines · STL → DTW
live · 2m ago
Route confirmed Southwest Airlines

WN3239 St LouisSTL · 19:50 DetroitDTW · 22:25

WN3239 by Southwest Airlines flies from St Louis (STL) to Detroit (DTW).

Right nowNext departure tomorrow Operates daily
09:55

scheduled from STL

Typical gate push+31 minmedian posted departure
Typical arrival+1 minmedian over 7 operations
Wins back in air~30 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+68+136+204 min
10-31
+10 gate · −27 arrival
10-30
+10 gate · −27 arrival
10-29
+204 gate · +172 arrival
10-26
+20 gate · −18 arrival
10-23
+31 gate · +1 arrival
10-22
+96 gate · +66 arrival
10-19
+92 gate · +59 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival +1 min · 0 cancelled · 7 operations tracked

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
DTWDetroitOn-time likelyDTW delay board →
STL→DTWevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
30%Chance of 15+ min delay
1.2%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at STL and DTW 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 on this route

Forecast

St Louis to Detroit with Southwest Airlines · Sun 1 Nov, local date

Outlook: about usual
Chance a departure is cancelled
0.2%6.4× usual
Chance a departure leaves 60+ min late
6.4%1.1× usual

Forecast weather: 75% chance of rain at St Louis

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 2 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other St Louis to Detroit flights today

same route · Southwest Airlines
WN3500departs 10:00
WN645departs 10:20
WN2650departs 10:30
WN909departs 10:55
WN1653departs 16:55
WN2723departs 18:30

If WN3239 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Detroit on the same day, with scheduled departure times in STL 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 WN3239 actually runs

Pro Flight Search has tracked every published board update for WN3239 across the STL and DTW boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 7 confirmed landings · 4/7 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how WN3239 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-31STL 19:50 20:00 (+10)DTW 22:25 21:58 (−27)
10-30STL 19:50 20:00 (+10)DTW 22:25 21:58 (−27)
10-29STL 19:50 23:14 (+204)DTW 22:25 01:17 (+172)
10-26STL 19:50 20:10 (+20)DTW 22:25 22:07 (−18)
10-23STL 19:50 20:21 (+31)DTW 22:25 22:26 (+1)
10-22STL 19:50 21:26 (+96)DTW 22:25 23:31 (+66)
10-19STL 19:50 21:22 (+92)DTW 22:25 23:24 (+59)

Aircraft

Recent tails: N900WN, N453WN, N7746C, N953WN.

Board clocks recorded as STL and DTW published them.

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: WN3239 St Louis to Detroit on-time performance, measured from the STL and DTW airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3239
How we measure this →