WN4165Southwest Airlines · STL → PIT
live · 2h ago
Route confirmed Southwest Airlines

WN4165 St LouisSTL · 19:35 PittsburghPIT · 22:20

WN4165 by Southwest Airlines flies from St Louis (STL) to Pittsburgh (PIT) for the Sat, Sep 12 departure.

Right nowEn route to Pittsburgh · off blocks 21:12 · 97 min late
En route

en route from STL to PIT

En routeWN4165 · position estimated
STLSt LouisPITPittsburgh
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 21:12 · typical taxi-out at STL ≈ 5 min.

⚖ WN4165 typically leaves +17 and lands +6. The air wins minutes back.

Where the minutes go

last 7 operations · gate push → arrival
0+58+116+174 min
09-12
+97 gate · +67 arrival
09-11
+97 gate · +67 arrival
09-10
+0 gate · +70 arrival
09-09
+3 gate · −20 arrival
09-08
+1 gate · −24 arrival
09-07
+174 gate · +142 arrival
09-06
+25 gate · +6 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 +6 min · 0 cancelled · 13 operations tracked

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
PITPittsburghOn-time likelyPIT delay board →
STL→PITevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
43%Chance of 15+ min delay
1.8%Chance of cancellation
+8 minAvg hub delay right now

Conditions at STL and PIT 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 Pittsburgh flights today

same route · Southwest Airlines
WN3879departs 10:15
WN3972departs 19:55

If WN4165 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Pittsburgh 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 WN4165 actually runs

Pro Flight Search has tracked every published board update for WN4165 across the STL and PIT boards: schedule changes, gate pushes and actual clocks. Usually lands ~6 min late. Based on 13 confirmed landings · 8/13 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 WN4165 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
09-12STL 19:35 21:12 (+97)PIT 22:20 23:27 (+67)
09-11STL 19:35 21:12 (+97)PIT 22:20 23:27 (+67)
09-10STL 19:35 (+0)PIT 22:20 23:30 (+70)
09-09STL 18:50 18:53 (+3)PIT 21:30 21:10 (−20)
09-08STL 18:50 18:51 (+1)PIT 21:30 21:06 (−24)
09-07STL 19:35 22:29 (+174)PIT 22:20 00:42 (+142)
09-06STL 17:45 18:10 (+25)PIT 20:20 20:26 (+6)
09-04STL 19:35 20:14 (+39)PIT 22:20 22:27 (+7)
09-03STL 19:35 21:00 (+85)PIT 22:20 23:13 (+53)
09-02STL 18:50 18:58 (+8)PIT 21:25 21:12 (−13)
09-01STL 18:50 18:53 (+3)PIT 21:25 21:06 (−19)
08-31STL 19:35 19:41 (+6)PIT 22:15 21:59 (−16)
08-30STL 19:00 19:17 (+17)PIT 21:35 21:30 (−5)

Aircraft

Recent tails: N7744A, N241WN, N7751A, N234WN.

Board clocks recorded as STL and PIT 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 — WN4165 St Louis to Pittsburgh on-time performance, measured from the STL and PIT airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4165
How we measure this →