WN4082Southwest Airlines · STL → SFO
live · 11m ago
Route confirmed Southwest Airlines

WN4082 St LouisSTL · 12:00 San FranciscoSFO · 14:10

WN4082 by Southwest Airlines flies from St Louis (STL) to San Francisco (SFO) for the Mon, Sep 21 departure.

Right nowEn route to San Francisco · off blocks 13:09 · 69 min late
En route

en route from STL to SFO

En routeWN4082 · position estimated
STLSt LouisSFOSan Francisco
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 13:09 · typical taxi-out at STL ≈ 5 min. No receiver coverage over open ocean.

Typical gate push+69 minmedian posted departure
Typical arrival+72 minmedian over 4 operations

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
09-21
+69 gate · +72 arrival
09-20
+69 gate · +72 arrival
09-19
+33 gate · +27 arrival
09-13
+43 gate · +37 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 LouisModerate riskSTL delay board →
SFOSan FranciscoOn-time likelySFO delay board →
STL→SFOevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
59%Chance of 15+ min delay
1.7%Chance of cancellation
+24 minAvg hub delay right now

Driven mainly by SFO (San Francisco), currently flying MVFR (marginal visual). 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 San Francisco flights today

same route · Southwest Airlines
WN4157departs 08:25

If WN4082 is cancelled, this is the other Southwest Airlines nonstop flight from St Louis to San Francisco 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 WN4082 actually runs

Pro Flight Search has tracked every published board update for WN4082 across the STL and SFO boards: schedule changes, gate pushes and actual clocks. Usually lands ~72 min late. Based on 4 confirmed landings · 0/4 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN4082 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
09-21STL 12:00 13:09 (+69)SFO 14:10 15:22 (+72)
09-20STL 12:00 13:09 (+69)SFO 14:10 15:22 (+72)
09-19STL 14:15 14:48 (+33)SFO 16:25 16:52 (+27)
09-13STL 12:00 12:43 (+43)SFO 14:10 14:47 (+37)

Aircraft

Recent tails: N8314L, N8630B, N8326F.

Board clocks recorded as STL and SFO 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 — WN4082 St Louis to San Francisco on-time performance, measured from the STL and SFO airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4082
How we measure this →