DL1821 PortlandPWM · 16:45 DetroitDTW · 18:33
DL1821 by Delta Air Lines flies from Portland (PWM) to Detroit (DTW) for the Sat, Sep 12 departure.
en route from PWM to DTW
board checked 28m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 16:47.
Where the minutes go
last 5 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 +0 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PWM and DTW 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 Portland to Detroit flights today
same route · Delta Air LinesIf DL1821 is cancelled, these are the other Delta Air Lines nonstop flights from Portland to Detroit on the same day, with scheduled departure times in PWM local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How DL1821 actually runs
Pro Flight Search has tracked every published board update for DL1821 across the PWM and DTW boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 4/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL1821 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: N951AT, N933AT, N966AT, N970AT.
Board clocks recorded as PWM and DTW published them.
Planning around DL1821? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL1821 Portland to Detroit on-time performance, measured from the PWM and DTW airport boards.
https://proflightsearch.com/flight/DL1821
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