WN4270Southwest Airlines · DEN → SLC
live · 18m ago
Route confirmed Southwest Airlines

WN4270 DenverDEN · 21:00 Salt Lake CitySLC · 22:35

WN4270 by Southwest Airlines flies from Denver (DEN) to Salt Lake City (SLC) for the Sun, Oct 25 departure.

Right nowDelayed · gate C40
21:23

departs DEN · 23 min late

Typical gate push+11 minmedian posted departure
Typical arrival−9 minmedian over 7 operations
Wins back in air~20 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+52+105+157 min
10-24
+10 gate · −11 arrival
10-23
+77 gate · +57 arrival
10-22
+157 gate · +132 arrival
10-21
+6 gate · −9 arrival
10-20
+3 gate · −14 arrival
10-19
+11 gate · −12 arrival
10-18
+56 gate · +28 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 −9 min · 0 cancelled · 7 operations tracked

The route today

live boards
DENDenverOn-time likelyDEN delay board →
SLCSalt Lake CityOn-time likelySLC delay board →
DEN→SLCevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
45%Chance of 15+ min delay
0.7%Chance of cancellation
+19 minAvg hub delay right now

Driven mainly by DEN (Denver), currently flying IFR (instrument). 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 Denver to Salt Lake City flights today

same route · Southwest Airlines
WN1780departs 06:05
WN2063departs 08:35
WN3502departs 08:40
WN2523departs 08:45
WN2444departs 11:40
WN1808departs 12:20

If WN4270 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to Salt Lake City on the same day, with scheduled departure times in DEN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN4270 actually runs

Pro Flight Search has tracked every published board update for WN4270 across the DEN and SLC boards: schedule changes, gate pushes and actual clocks. Usually lands ~5 min early. Based on 7 confirmed landings · 4/7 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 WN4270 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
10-24DEN 19:45 19:55 (+10)SLC 21:20 21:09 (−11)
10-23DEN 20:55 22:12 (+77)SLC 22:30 23:27 (+57)
10-22DEN 20:55 23:32 (+157)SLC 22:30 00:42 (+132)
10-21DEN 20:40 20:46 (+6)SLC 22:15 22:06 (−9)
10-20DEN 20:40 20:43 (+3)SLC 22:15 22:01 (−14)
10-19DEN 20:55 21:06 (+11)SLC 22:30 22:18 (−12)
10-18DEN 21:00 21:56 (+56)SLC 22:35 23:03 (+28)

Aircraft

Recent tails: N8978G, N213WN, N8921Q, N8553W.

Board clocks recorded as DEN and SLC published them.

Planning around WN4270? 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 — WN4270 Denver to Salt Lake City on-time performance, measured from the DEN and SLC airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4270
How we measure this →