DL440 HonoluluHNL SeattleSEA
DL440 by Delta Air Lines flies from Honolulu (HNL) to Seattle (SEA).
scheduled from HNL
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at HNL 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.
Other Honolulu to Seattle flights today
same route · Delta Air LinesIf DL440 is cancelled, this is the other Delta Air Lines nonstop flight from Honolulu to Seattle on the same day, with scheduled departure times in HNL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How DL440 actually runs
Pro Flight Search has tracked every published board update for DL440 across the HNL and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 39.4/100. Based on airport operations, weather, and cached board history at HNL and SEA.
The verdict above is that record speaking, so it reflects how DL440 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 HNL and SEA published them.
Planning around DL440? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL440 Honolulu to Seattle on-time performance, measured from the HNL and SEA airport boards.
https://proflightsearch.com/flight/DL440
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