DL1015 WashingtonIAD · 07:25 SeattleSEA · 10:05
DL1015 by Delta Air Lines flies from Washington (IAD) to Seattle (SEA) for the Fri, Sep 18 departure.
arrival expected at SEA · 13 min early
board checked 44m 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 operationmedian arrival −13 min · 0 cancelled · 7 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAD and SEA 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.
How DL1015 actually runs
Pro Flight Search has tracked every published board update for DL1015 across the IAD and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs ~10 min late. Based on 7 confirmed departures · 5/7 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL1015 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: N335DU, N341DU, N311DU, N308DU.
Board clocks recorded as IAD and SEA published them.
Planning around DL1015? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL1015 Washington to Seattle on-time performance, measured from the IAD and SEA airport boards.
https://proflightsearch.com/flight/DL1015
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