WN2135Southwest Airlines · DEN → SLC
live · 6m ago
Route confirmed Southwest Airlines

WN2135 DenverDEN · 19:30 Salt Lake CitySLC · 21:10

WN2135 by Southwest Airlines flies from Denver (DEN) to Salt Lake City (SLC).

Right nowNext departure today Operates daily
18:55

scheduled from DEN

Typical gate push+20 minmedian posted departure
Typical arrival+14 minmedian over 7 operations
Wins back in air~6 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+34+68+102 min
09-13
+7 gate · +14 arrival
09-12
+7 gate · +14 arrival
09-09
+52 gate · +27 arrival
09-08
+39 gate · +16 arrival
09-05
+11 gate · −5 arrival
09-02
+102 gate · +80 arrival
09-01
+20 gate · +1 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 +14 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

Delay & cancellation outlook for this flight

Measured, 90-day sample
38%Chance of 15+ min delay
1.3%Chance of cancellation
+9 minAvg hub delay right now

Conditions at DEN and SLC 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 Denver to Salt Lake City flights today

same route · Southwest Airlines
WN1681departs 08:55
WN1680departs 09:05
WN4027departs 10:05
WN2580departs 10:25
WN803departs 10:55
WN1089departs 12:00

If WN2135 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 WN2135 actually runs

Pro Flight Search has tracked every published board update for WN2135 across the DEN and SLC boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min late. Based on 7 confirmed landings · 2/7 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN2135 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
09-13DEN 19:30 19:37 (+7)SLC 21:10 21:24 (+14)
09-12DEN 19:30 19:37 (+7)SLC 21:10 21:24 (+14)
09-09DEN 18:55 19:47 (+52)SLC 20:35 21:02 (+27)
09-08DEN 18:55 19:34 (+39)SLC 20:35 20:51 (+16)
09-05DEN 19:30 19:41 (+11)SLC 21:10 21:05 (−5)
09-02DEN 18:55 20:37 (+102)SLC 20:30 21:50 (+80)
09-01DEN 18:55 19:15 (+20)SLC 20:30 20:31 (+1)

Aircraft

Recent tails: N9009U, N8870K, N8875B, N8915Q.

Board clocks recorded as DEN and SLC 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 — WN2135 Denver to Salt Lake City on-time performance, measured from the DEN and SLC airport boards.

Canonical URL
https://proflightsearch.com/flight/WN2135
How we measure this →