WN4056Southwest Airlines · SLC → AUS
live · 16m ago
Route confirmed Southwest Airlines

WN4056 Salt Lake CitySLC · 17:35 AustinAUS · 21:15

WN4056 by Southwest Airlines flies from Salt Lake City (SLC) to Austin (AUS) for the Mon, Sep 7 departure.

Right nowLanded in Austin · today
21:33

arrived at AUS · 18 min late

Typical gate push+44 minmedian posted departure
Typical arrival+23 minmedian over 5 operations
Wins back in air~21 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 5 operations · gate push → arrival
0+42+84+126 min
09-07
+18 arrival
09-04
+8 gate · −14 arrival
09-03
+44 gate · +23 arrival
08-31
+126 gate · +109 arrival
08-28
+59 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 +23 min · 0 cancelled · 5 operations tracked

The route today

live boards
SLCSalt Lake CityOn-time likelySLC delay board →
AUSAustinOn-time likelyAUS delay board →
SLC→AUSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
35%Chance of 15+ min delay
1.1%Chance of cancellation
+1 minAvg hub delay right now

Conditions at SLC 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 Salt Lake City to Austin flights today

same route · Southwest Airlines
WN805departs 11:25
WN2390departs 11:45

If WN4056 is cancelled, these are the other Southwest Airlines nonstop flights from Salt Lake City to Austin on the same day, with scheduled departure times in SLC local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN4056 actually runs

Pro Flight Search has tracked every published board update for WN4056 across the SLC and AUS boards: schedule changes, gate pushes and actual clocks. Usually lands ~23 min late. Based on 5 confirmed landings · 1/5 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 WN4056 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
09-07SLC 17:35AUS 21:15 21:33 (+18)
09-04SLC 17:35 17:43 (+8)AUS 21:15 21:01 (−14)
09-03SLC 17:35 18:19 (+44)AUS 21:15 21:38 (+23)
08-31SLC 17:35 19:41 (+126)AUS 21:15 23:04 (+109)
08-28SLC AUS 21:15 22:14 (+59)

Aircraft

Recent tails: N8809L, N8696E, N8876Q, N8790Q.

Board clocks recorded as SLC 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 — WN4056 Salt Lake City to Austin on-time performance, measured from the SLC and AUS airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4056
How we measure this →