WN1581 PhiladelphiaPHL · 09:20 DenverDEN · 07:25
WN1581 by Southwest Airlines flies from Philadelphia (PHL) to Denver (DEN) for the Sat, Oct 24 departure.
en route from PHL to DEN
board checked 19m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 09:14 · typical taxi-out at PHL ≈ 7 min. No receiver coverage over open ocean.
Where the minutes go
last 7 operations · gate push → arrivalThe 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 operationmedian arrival −17 min · 0 cancelled · 7 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PHL and DEN 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 departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Philadelphia to Denver flights today
same route · Southwest AirlinesIf WN1581 is cancelled, these are the other Southwest Airlines nonstop flights from Philadelphia to Denver on the same day, with scheduled departure times in PHL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN1581 actually runs
Pro Flight Search has tracked every published board update for WN1581 across the PHL and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min early. Based on 7 confirmed landings · 6/7 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 WN1581 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N8310C, N8321D, N8879Q, N8824Q.
Board clocks recorded as PHL and DEN published them.
Planning around WN1581? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — WN1581 Philadelphia to Denver on-time performance, measured from the PHL and DEN airport boards.
https://proflightsearch.com/flight/WN1581
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