OS773 ViennaVIE · 12:50 SofiaSOF · 15:20
OS773 by Austrian Airlines flies from Vienna (VIE) to Sofia (SOF) for the Wed, Oct 14 departure.
departs VIE · on schedule
board checked 4m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at VIE and SOF 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 Sofia flights today
same route · Austrian AirlinesIf OS773 is cancelled, these are the other Austrian Airlines nonstop flights from Vienna to Sofia 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 OS773 actually runs
Pro Flight Search has tracked every published board update for OS773 across the VIE and SOF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left noticeably late (~40 min) but landed a little late (~20 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how OS773 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 SOF published them.
Planning around OS773? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — OS773 Vienna to Sofia on-time performance, measured from the VIE and SOF airport boards.
https://proflightsearch.com/flight/OS773
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