WN4854Southwest Airlines · LAS → BOI
live · 59m ago
Route confirmed Southwest Airlines

WN4854 Las VegasLAS · 08:00 BoiseBOI · 10:50

WN4854 by Southwest Airlines flies from Las Vegas (LAS) to Boise (BOI) for the Tue, Sep 22 departure.

Right nowLanded in Boise · today
10:52

arrived at BOI · 2 min late

Typical gate push+6 minmedian posted departure
Typical arrival+2 minmedian over 3 operations
Wins back in air~4 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
09-22
−3 gate · +2 arrival
09-21
+6 gate · +9 arrival
09-18
−1 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
LASLas VegasOn-time likelyLAS delay board →
BOIBoiseOn-time likelyBOI delay board →
LAS→BOIevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Early read, sample still building
40%Chance of 15+ min delay
0.6%Chance of cancellation

Conditions at LAS and BOI 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.

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 Las Vegas to Boise flights today

same route · Southwest Airlines
WN458departs 07:30
WN3425departs 07:45
WN4365departs 09:20
WN776departs 11:25
WN1770departs 12:00
WN3314departs 19:40

If WN4854 is cancelled, these are the other Southwest Airlines nonstop flights from Las Vegas to Boise on the same day, with scheduled departure times in LAS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN4854 actually runs

Pro Flight Search has tracked every published board update for WN4854 across the LAS and BOI boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: landed +2 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN4854 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
09-22LAS 08:00 07:57 (−3)BOI 10:50 10:52 (+2)
09-21LAS 20:50 20:56 (+6)BOI 23:40 23:49 (+9)
09-18LAS 20:50BOI 23:40 23:39 (−1)

Aircraft

Recent tails: N8746Q, N8771D.

Board clocks recorded as LAS and BOI 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 — WN4854 Las Vegas to Boise on-time performance, measured from the LAS and BOI airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4854
How we measure this →