OS639 ViennaVIE · 21:40 BudapestBUD · 22:25
OS639 by Austrian Airlines flies from Vienna (VIE) to Budapest (BUD) for the Sat, Sep 5 departure.
arrived at BUD · 5 min late
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at VIE and BUD 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.
Other Vienna to Budapest flights today
same route · Austrian AirlinesIf OS639 is cancelled, these are the other Austrian Airlines nonstop flights from Vienna to Budapest on the same day, with scheduled departure times in VIE local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How OS639 actually runs
Pro Flight Search has tracked every published board update for OS639 across the VIE and BUD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: landed +5 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how OS639 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 VIE and BUD published them.
Planning around OS639? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — OS639 Vienna to Budapest on-time performance, measured from the VIE and BUD airport boards.
https://proflightsearch.com/flight/OS639
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