WN1737Southwest Airlines · DEN → PHX
live · 13m ago
Route confirmed Southwest Airlines

WN1737 DenverDEN · 21:05 PhoenixPHX · 22:00

WN1737 by Southwest Airlines flies from Denver (DEN) to Phoenix (PHX).

Right nowNext departure today Operates daily
20:35

scheduled from DEN

Typical gate push+134 minmedian posted departure
Typical arrival+115 minmedian over 3 operations
Wins back in air~19 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 3 operations · gate push → arrival
0+45+89+134 min
10-17
+134 gate · +115 arrival
10-16
+134 gate · +115 arrival
10-15
+13 gate · −6 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
DENDenverHigh riskDEN delay board →
PHXPhoenixOn-time likelyPHX delay board →
DEN→PHXevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
40%Chance of 15+ min delay
2.1%Chance of cancellation
+10 minAvg hub delay right now

Conditions at DEN and PHX 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 Phoenix flights today

same route · Southwest Airlines
WN4256departs 05:55
WN2525departs 06:30
WN496departs 07:10
WN2678departs 07:45
WN1383departs 07:55
WN1728departs 08:40

If WN1737 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to Phoenix 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 WN1737 actually runs

Pro Flight Search has tracked every published board update for WN1737 across the DEN and PHX boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left heavily delayed (~134 min) but landed heavily delayed (~115 min). Not enough to call it.

The verdict above is that record speaking, so it reflects how WN1737 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
10-17DEN 21:05 23:19 (+134)PHX 22:00 23:55 (+115)
10-16DEN 21:05 23:19 (+134)PHX 22:00 23:55 (+115)
10-15DEN 21:05 21:18 (+13)PHX 22:00 21:54 (−6)

Aircraft

Recent tails: N8523W, N8569Z.

Board clocks recorded as DEN and PHX 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 — WN1737 Denver to Phoenix on-time performance, measured from the DEN and PHX airport boards.

Canonical URL
https://proflightsearch.com/flight/WN1737
How we measure this →