WN4038Southwest Airlines · STL → AUS
live · 42m ago
Route confirmed Southwest Airlines

WN4038 St LouisSTL · 21:45 AustinAUS · 23:50

WN4038 by Southwest Airlines flies from St Louis (STL) to Austin (AUS).

Right nowNext departure tomorrow Operates daily
09:00

scheduled from STL

Typical gate push+26 minmedian posted departure
Typical arrival−3 minmedian over 4 operations
Wins back in air~29 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-23
+23 gate · −6 arrival
10-22
+26 gate · −3 arrival
10-21
+48 gate · +16 arrival
10-20
−14 arrival

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

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
AUSAustinOn-time likelyAUS delay board →
STL→AUSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
41%Chance of 15+ min delay
1.3%Chance of cancellation
+9 minAvg hub delay right now

Conditions at STL and AUS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →

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 Austin flights today

same route · Southwest Airlines
WN351departs 08:25
WN4458departs 08:30
WN415departs 12:00
WN3173departs 12:50
WN1642departs 13:45
WN2522departs 14:25

If WN4038 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Austin on the same day, with scheduled departure times in STL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN4038 actually runs

Pro Flight Search has tracked every published board update for WN4038 across the STL and AUS boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 3/4 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 WN4038 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
10-23STL 21:45 22:08 (+23)AUS 23:50 23:44 (−6)
10-22STL 21:45 22:11 (+26)AUS 23:50 23:47 (−3)
10-21STL 20:50 21:38 (+48)AUS 22:55 23:11 (+16)
10-20STL AUS 22:55 22:41 (−14)

Aircraft

Recent tails: N8645A, N8662F, N8733M, N8314L.

Board clocks recorded as STL and AUS 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 — WN4038 St Louis to Austin on-time performance, measured from the STL and AUS airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4038
How we measure this →