OS139 ViennaVIE · 13:00 ZurichZRH · 14:20
OS139 by Austrian Airlines flies from Vienna (VIE) to Zurich (ZRH) for the Fri, Aug 21 departure.
departs VIE · on schedule
board checked 28m ago · checking again in 45s
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
Measured, 90-day sampleConditions at VIE and ZRH 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 Zurich flights today
same route · Austrian AirlinesIf OS139 is cancelled, these are the other Austrian Airlines nonstop flights from Vienna to Zurich 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 OS139 actually runs
Pro Flight Search has tracked every published board update for OS139 across the VIE and ZRH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +15 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how OS139 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: OE-LZA.
Board clocks recorded as VIE and ZRH published them.
Planning around OS139? 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 — OS139 Vienna to Zurich on-time performance, measured from the VIE and ZRH airport boards.
https://proflightsearch.com/flight/OS139
.