WN4079Southwest Airlines · STL → LAS
live · 10m ago
Route confirmed Southwest Airlines

WN4079 St LouisSTL · 12:55 Las VegasLAS · 14:25

WN4079 by Southwest Airlines flies from St Louis (STL) to Las Vegas (LAS) for the Thu, Nov 12 departure.

Right nowEn route to Las Vegas · off blocks 13:11 · 16 min late
En route

en route from STL to LAS

En routeWN4079 · position estimated
STLSt LouisLASLas Vegas
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 13:11 · typical taxi-out at STL ≈ 4.9 min.

Typical gate push+16 minmedian posted departure
Typical arrival−10 minmedian over 3 operations
Wins back in air~26 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 3 operations · gate push → arrival
0+30+60+90 min
11-12
+16 gate · −10 arrival
10-30
+35 gate · −9 arrival
10-29
+16 gate · −10 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 →
LASLas VegasOn-time likelyLAS delay board →
STL→LASevery 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
0.6%Chance of cancellation
+7 minTypical airport delay in this weather

Conditions at STL and LAS 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 STL

Forecast

Fri 13 Nov, local date

High7°Clikely 6°C to 9°C
Low3°Clikely 1°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.

Tomorrow at LAS

Forecast

Fri 13 Nov, local date

High22°Clikely 20°C to 24°C
Low14°Clikely 12°C to 15°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 Las Vegas flights today

same route · Southwest Airlines
WN4156departs 05:05
WN4078departs 05:20
WN143departs 06:25
WN120departs 08:25
WN931departs 08:45
WN4155departs 09:35

If WN4079 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Las Vegas 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 WN4079 actually runs

Pro Flight Search has tracked every published board update for WN4079 across the STL and LAS boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: departed -19 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN4079 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
11-12STL 12:55 13:11 (+16)LAS 14:25 14:15 (−10)
10-30STL 12:55 13:30 (+35)LAS 14:25 14:16 (−9)
10-29STL 12:55 13:11 (+16)LAS 14:25 14:15 (−10)

Aircraft

Recent tails: N8930S, N8907L.

Board clocks recorded as STL and LAS 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: WN4079 St Louis to Las Vegas on-time performance, measured from the STL and LAS airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4079
How we measure this →