DL8859 BuffaloBUF · 12:45 HoustonIAH · 14:44
DL8859 by Delta Air Lines flies from Buffalo (BUF) to Houston (IAH) for the Sat, Sep 12 departure.
arrived at IAH · 6 min late
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at BUF and IAH 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 DL8859 actually runs
Pro Flight Search has tracked every published board update for DL8859 across the BUF and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +6 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how DL8859 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 BUF and IAH published them.
Planning around DL8859? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL8859 Buffalo to Houston on-time performance, measured from the BUF and IAH airport boards.
https://proflightsearch.com/flight/DL8859
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