DL421 DetroitDTW · 12:25 Las VegasLAS · 13:38
DL421 by Delta Air Lines flies from Detroit (DTW) to Las Vegas (LAS) for the Thu, Sep 10 departure.
arrival expected at LAS · 14 min early
board checked 8m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DTW and LAS 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 Detroit to Las Vegas flights today
same route · Delta Air LinesIf DL421 is cancelled, these are the other Delta Air Lines nonstop flights from Detroit to Las Vegas on the same day, with scheduled departure times in DTW local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How DL421 actually runs
Pro Flight Search has tracked every published board update for DL421 across the DTW and LAS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: departed +0 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how DL421 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as DTW and LAS published them.
Planning around DL421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL421 Detroit to Las Vegas on-time performance, measured from the DTW and LAS airport boards.
https://proflightsearch.com/flight/DL421
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