WN3866Southwest Airlines · SLC → AUS
live · 41m ago
Route confirmed Southwest Airlines

WN3866 Salt Lake CitySLC · 06:20 AustinAUS · 10:00

WN3866 by Southwest Airlines flies from Salt Lake City (SLC) to Austin (AUS).

Right nowNext departure today Operates daily
18:25

scheduled from SLC

Wins back in air~14 minmedian gate push vs arrival · how planes make up time →

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
32%Chance of 15+ min delay
0.6%Chance of cancellation
-1 minTypical airport delay in this weather

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. 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 AUS

Forecast

Sat 14 Nov, local date

High20°Clikely 17°C to 22°C
Low10°Clikely 8°C to 13°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 Salt Lake City to Austin flights today

same route · Southwest Airlines
WN4045departs 08:00
WN3903departs 11:25

If WN3866 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 that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WN3866 actually runs

Pro Flight Search has tracked every published board update for WN3866 across the SLC and AUS boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: landed -10 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN3866 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
11-13SLC 06:20 06:24 (+4)AUS 10:00 09:50 (−10)
10-30SLC 06:20 06:24 (+4)AUS 10:00 09:50 (−10)

Aircraft

Recent tails: N8754S.

Board clocks recorded as SLC and AUS published them.

Planning around WN3866? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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: WN3866 Salt Lake City to Austin on-time performance, measured from the SLC and AUS airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3866
How we measure this →