WN4257 DenverDEN · 20:55 RenoRNO · 22:20
WN4257 by Southwest Airlines flies from Denver (DEN) to Reno (RNO) for the Thu, Oct 15 departure.
estimated arrival at RNO · local time · past this estimate · waiting on the board
board checked 60m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 21:25 · typical taxi-out at DEN ≈ 7.2 min.
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 +31 min · 0 cancelled · 7 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DEN and RNO 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 Denver to Reno flights today
same route · Southwest AirlinesIf WN4257 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to Reno 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 WN4257 actually runs
Pro Flight Search has tracked every published board update for WN4257 across the DEN and RNO boards: schedule changes, gate pushes and actual clocks. Usually lands ~52 min late. Based on 5 confirmed landings · 2/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN4257 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: N489WN, N8921Q, N8851Q, N435WN.
Board clocks recorded as DEN and RNO published them.
Planning around WN4257? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN4257 Denver to Reno on-time performance, measured from the DEN and RNO airport boards.
https://proflightsearch.com/flight/WN4257
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