WN4141Southwest Airlines · STL → DEN
live · 14m ago
Route confirmed Southwest Airlines

WN4141 St LouisSTL · 08:25 DenverDEN · 09:50

WN4141 by Southwest Airlines flies from St Louis (STL) to Denver (DEN).

Right nowNext departure tomorrow Operates daily
09:05

scheduled from STL

Typical gate push+26 minmedian posted departure
Typical arrival−4 minmedian over 8 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+30+60+90 min
11-10
+50 gate · +23 arrival
11-09
+50 gate · +23 arrival
11-08
+26 gate · −3 arrival
11-07
+7 gate · −19 arrival
11-06
+7 gate · −22 arrival
11-05
+17 gate · −13 arrival
11-02
+29 gate · +14 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 −4 min · 0 cancelled · 8 operations tracked

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
DENDenverOn-time likelyDEN delay board →
STL→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
40%Chance of 15+ min delay
1.3%Chance of cancellation
+7 minTypical airport delay in this weather

Conditions at STL and DEN 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 St Louis

Forecast

Wed 11 Nov, local date

High20°Clikely 18°C to 22°C
Low8°Clikely 7°C to 10°C

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 Denver

Forecast

Wed 11 Nov, local date

High19°Clikely 17°C to 20°C
Low3°Clikely 2°C to 5°C

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 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 Denver flights today

same route · Southwest Airlines
WN4140departs 06:10
WN1755departs 08:25
WN1808departs 11:20
WN2098departs 14:35
WN985departs 16:05
WN4143departs 16:50

If WN4141 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Denver 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 WN4141 actually runs

Pro Flight Search has tracked every published board update for WN4141 across the STL and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 8 confirmed landings · 6/8 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 WN4141 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
11-10STL 08:25 09:15 (+50)DEN 09:50 10:13 (+23)
11-09STL 08:25 09:15 (+50)DEN 09:50 10:13 (+23)
11-08STL 08:25 08:51 (+26)DEN 09:50 09:47 (−3)
11-07STL 08:55 09:02 (+7)DEN 10:20 10:01 (−19)
11-06STL 08:25 08:32 (+7)DEN 09:50 09:28 (−22)
11-05STL 08:25 08:42 (+17)DEN 09:50 09:37 (−13)
11-02STL 08:25 08:54 (+29)DEN 09:50 10:04 (+14)
11-01STL DEN 09:50 09:44 (−6)

Aircraft

Recent tails: N8630B, N9001F, N8578Q, N8959Q.

Board clocks recorded as STL and DEN 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: WN4141 St Louis to Denver on-time performance, measured from the STL and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4141
How we measure this →