OS645 ViennaVIE · 15:20 PraguePRG · 16:10
OS645 by Austrian Airlines flies from Vienna (VIE) to Prague (PRG) for the Mon, Aug 17 departure.
departs VIE · on schedule
board checked 5m ago · checking again in 45s
⚖ OS645 typically leaves +25 and lands +6. The air wins minutes back.Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +6 min · 0 cancelled · 13 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at VIE and PRG 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 Prague flights today
same route · Austrian AirlinesIf OS645 is cancelled, these are the other Austrian Airlines nonstop flights from Vienna to Prague 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 OS645 actually runs
Pro Flight Search has tracked every published board update for OS645 across the VIE and PRG boards: schedule changes, gate pushes and actual clocks. Usually lands ~6 min late. Based on 13 confirmed landings · 10/13 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how OS645 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-LWJ, OE-LWD.
Board clocks recorded as VIE and PRG published them.
Planning around OS645? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — OS645 Vienna to Prague on-time performance, measured from the VIE and PRG airport boards.
https://proflightsearch.com/flight/OS645
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