DL3909 DetroitDTW · 22:55 KalamazooAZO
DL3909 by Delta Air Lines flies from Detroit (DTW) to Kalamazoo (AZO) for the Mon, Aug 17 departure.
departs DTW · on schedule
board checked 159m ago · checking again in 45s
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 operation1 cancelled · 12 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Detroit to Kalamazoo flights today
same route · Delta Air LinesIf DL3909 is cancelled, these are the other Delta Air Lines nonstop flights from Detroit to Kalamazoo 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 DL3909 actually runs
Pro Flight Search has tracked every published board update for DL3909 across the DTW and AZO boards: schedule changes, gate pushes and actual clocks. Usually departs ~28 min late. Based on 10 confirmed departures · 1/10 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL3909 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: N837SK, N834SK, N838SK, N898SK.
Board clocks recorded as DTW and AZO published them.
Planning around DL3909? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL3909 Detroit to Kalamazoo on-time performance, measured from the DTW and AZO airport boards.
https://proflightsearch.com/flight/DL3909
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