Austrian Airlines
OS 56: Montreal → Vienna
OS 56 (Austrian Airlines) is scheduled to leave Montreal at 18:35 and land in Vienna at 08:35. The flight is mostly on time: 72% of the last 78 departures were on time.
How punctual is OS 56?
- on time (≤ 15 min)
- 72 %
- median deviation
- +8 min
- more than 1 hour late
- 1 %
Based on 78 departures in the roughly three months up to 6 October 2026. On time means leaving the gate no more than 15 minutes late.
Delay, gate and terminal on your phone – even when the app is closed.
72% of departures were no more than 15 minutes behind schedule. That is 11 percentage points above the average across all 491 flight numbers FlightPeek analyses (61%). On average, OS 56 leaves 8 minutes behind schedule. 1% of departures were more than an hour late.
What to do if OS 56 is delayed
This flight departs outside the EU. EU Regulation 261/2004 then only applies if an EU airline flies into the EU – otherwise the rules of the departure country and the airline's conditions apply.
Frequently asked questions
- How punctual is OS 56?
- In the roughly three months up to 6 October 2026, 72% of 78 departures left no more than 15 minutes late. On average, OS 56 leaves 8 minutes behind schedule.
- When does OS 56 depart and arrive?
- Scheduled departure is 18:35 local time in Montreal, arrival 08:35 local time in Vienna, with a flight time of 8 h. Schedules change by season – your booking is what counts.
- Which aircraft operates OS 56?
- Most recently, OS 56 was flown with a BOEING 767-300. The airline can swap aircraft at short notice.
- How do I find out straight away if OS 56 is delayed?
- FlightPeek watches the flight and sends delay, gate, terminal and cancellation alerts to your phone – often before the departure board shows them.