Informational Guide to Vienna International Airport (VIE) - Non Official

OS491 Austrian - Flight Status

Below, you can find details about Austrian flight OS491, which currently operates between the airports of Vienna - Vienna International Airport (Airport Code VIE) and Porto - Porto Airport (Airport Code OPO).
This flight data pertains specifically to the flight's details for Thursday, January 01, 2026.

OS491 On Time performance:
67
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

OS491 Austrian to Porto

Scheduled - On-time
Flight Status for Thursday January 01, 2026

Airline information

Austrian
Austrian
Equipment: Airbus A320

Departure

Vienna (VIE)
January 01, 2026
Vienna International Airport
Estimated Departure Time:
08:00
Gate:
-
Scheduled Departure Time: 08:00

Arrival

Porto (OPO)
January 01, 2026
Porto Airport
Estimated Arrival Time:
10:25
Terminal:
-
Gate:
-
Scheduled Arrival Time: 10:25
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.airport-vienna.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- TP6809 - TAP Air Portugal

Additional Information

Which is the frequency of flight OS491?
The flight OS491 is scheduled to flight on Tuesday, Thursday on a weekly basis.

Which is the distance of flight OS491?
The distance between the two airports is 2126 kilometers.

Which is the flight time of flight OS491?
The scheduled flight time gate to gate is: 03:25 hours.
The real flight time gate to gate on average is: 03:10 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Vienna: 2026-01-01 04:19:34
Current Time in Porto: 2026-01-01 03:19:34

Alternative Flights

The following airline serve the same route between Vienna and Porto:
Ryanair - Flight Number: FR751. (On Time performance: 68 - Average Delay: 14 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from October 26, 2025 to December 25, 2025, we have obtained these figures.
Total number of flights: 6
On Time: 4 ( 67 % )
Moderate Delay: 2 ( 33 % )
Significant Delay: 0 ( 0 % )
Major Delay: 0 ( 0 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 12 minutes.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights OS491

Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
30 December
08:25
Vienna (VIE)
10:28
Porto (OPO)
03h 03min
Airbus A320
Airbus A320
Landed - On-time
Thursday
25 December
10:06
Vienna (VIE)
12:03
Porto (OPO)
02h 57min
Airbus A320
Airbus A320
Landed - On-time
Tuesday
23 December
11:11
Vienna (VIE)
13:16
Porto (OPO)
03h 05min
Airbus A320
Airbus A320
Landed - On-time