OS991 ViennaVIE · 07:10 CopenhagenCPH · 08:50
OS991 by Austrian Airlines flies from Vienna (VIE) to Copenhagen (CPH) for the Thu, Sep 17 departure.
arrived at CPH · 4 min late
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at VIE and CPH 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 Vienna to Copenhagen flights today
same route · Austrian AirlinesIf OS991 is cancelled, these are the other Austrian Airlines nonstop flights from Vienna to Copenhagen 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 OS991 actually runs
Pro Flight Search has tracked every published board update for OS991 across the VIE and CPH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left a little late (~20 min) but landed right on schedule. Not enough to call it.
The verdict above is that record speaking, so it reflects how OS991 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 CPH published them.
Planning around OS991? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — OS991 Vienna to Copenhagen on-time performance, measured from the VIE and CPH airport boards.
https://proflightsearch.com/flight/OS991
.