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

OS603 Austrian - Flight Status

Codeshare Flights
The flight OU5501 from Croatia Airlines (OU) is a codeshare flight operated by Austrian (OS) under the flight number OS603. Check this page for details about flight OS603.

Below, you can find details about Austrian flight OS603, which currently operates between the airports of Vienna - Vienna International Airport (Airport Code VIE) and Zagreb - Zagreb Franjo Tudman Airport (Airport Code ZAG).
This flight data pertains specifically to the flight's details for Sunday, February 01, 2026.

OS603 On Time performance:
76
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

OS603 Austrian to Zagreb

En Route - On-time
Flight Status for Sunday February 01, 2026

Airline information

Austrian
Austrian
Equipment: Embraer 195 and Legacy 1000

Departure

Vienna (VIE)
February 01, 2026
Vienna International Airport
Departed at:
09:31
Gate:
F30
Scheduled Departure Time: 09:30

Arrival

Zagreb (ZAG)
February 01, 2026
Zagreb Franjo Tudman Airport
Estimated Arrival Time:
10:20
Terminal:
-
Gate:
A24
Scheduled Arrival Time: 10:20
Baggage: 1
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:

- NH5629 - ANA All Nippon Airways

- OU5501 - Croatia Airlines

Additional Information

Which is the frequency of flight OS603?
The flight OS603 is scheduled to flight on daily basis.

Which is the distance of flight OS603?
The distance between the two airports is 268 kilometers.

Which is the flight time of flight OS603?
The scheduled flight time gate to gate is: 00:50 hours.
The real flight time gate to gate on average is: 00:46 hours.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

Alternative Flights

The following airline serve the same route between Vienna and Zagreb:
Croatia Airlines - Flight Number: OU441. (On Time performance: 88 - Average Delay: 7 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 31, 2025 to January 30, 2026, we have obtained these figures.
Total number of flights: 82
On Time: 62 ( 76 % )
Moderate Delay: 12 ( 15 % )
Significant Delay: 6 ( 7 % )
Major Delay: 2 ( 2 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 10 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from October 26, 2025 to January 30, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from October 26, 2025 to January 30, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights OS603

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
30 January
17:09
Vienna (VIE)
17:45
Zagreb (ZAG)
00h 36min
Embraer 195 an
Embraer 195 an
Landed - On-time
Wednesday
28 January
16:48
Vienna (VIE)
17:31
Zagreb (ZAG)
00h 43min
Embraer 195 an
Embraer 195 an
Landed - On-time
Monday
26 January
17:05
Vienna (VIE)
17:52
Zagreb (ZAG)
00h 47min
Embraer 195 an
Embraer 195 an
Landed - On-time
Friday
23 January
17:12
Vienna (VIE)
17:51
Zagreb (ZAG)
00h 39min
Embraer 195 an
Embraer 195 an
Landed - On-time
Wednesday
21 January
16:58
Vienna (VIE)
17:38
Zagreb (ZAG)
00h 40min
Embraer 195 an
Embraer 195 an
Landed - On-time
Monday
19 January
17:06
Vienna (VIE)
17:45
Zagreb (ZAG)
00h 39min
Embraer 195 an
Embraer 195 an
Landed - On-time
Friday
16 January
17:14
Vienna (VIE)
17:51
Zagreb (ZAG)
00h 37min
Embraer 195 an
Embraer 195 an
Landed - On-time
Thursday
15 January
13:25
Vienna (VIE)
14:02
Zagreb (ZAG)
00h 37min
Embraer 195 an
Embraer 195 an
Landed - On-time
Wednesday
14 January
17:07
Vienna (VIE)
17:44
Zagreb (ZAG)
00h 37min
Embraer 195 an
Embraer 195 an
Landed - On-time
Tuesday
13 January
18:01
Vienna (VIE)
18:38
Zagreb (ZAG)
00h 37min
Embraer 195 an
Embraer 195 an
Landed - Delayed