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

OU443 Croatia Airlines - Flight Status

Codeshare Flights
The flight LO4273 from LOT Polish Airlines (LO) is a codeshare flight operated by Croatia Airlines (OU) under the flight number OU443. Check this page for details about flight OU443.

Below, you can find details about Croatia Airlines flight OU443, 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 Tuesday, May 19, 2026.

OU443 On Time performance:
95
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

OU443 Croatia Airlines to Zagreb

Scheduled - On-time
Flight Status for Tuesday May 19, 2026
This flight was also scheduled for Yesterday (May 18, 2026). See it here

Airline information

Croatia Airlines
Croatia Airlines
Equipment: De Havilland (Bombardier) DHC-8-400 Dash 8Q

Departure

Vienna (VIE)
May 19, 2026
Vienna International Airport
Estimated Departure Time:
19:45
Gate:
-
Scheduled Departure Time: 19:45

Arrival

Zagreb (ZAG)
May 19, 2026
Zagreb Franjo Tudman Airport
Estimated Arrival Time:
20:35
Terminal:
-
Gate:
-
Scheduled Arrival Time: 20:35
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:

- AI7527 - Air India

- LO4273 - LOT Polish Airlines

- OS7053 - Austrian

Additional Information

Which is the frequency of flight OU443?
The flight OU443 is scheduled to flight on Monday, Tuesday, Wednesday, Thursday, Friday on a weekly basis.

Which is the distance of flight OU443?
The distance between the two airports is 268 kilometers.

Which is the flight time of flight OU443?
The scheduled flight time gate to gate is: 00:50 hours.
The real flight time gate to gate on average is: 00:43 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 airlines serves the same route between Vienna and Zagreb:

Austrian
- Flight Number: OS603. (On Time performance: 100 - Average Delay: 2 minutes)

Croatia Airlines
- Flight Number: OU441. (On Time performance: 93 - Average Delay: 5 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 February 17, 2026 to May 15, 2026, we have obtained these figures.
Total number of flights: 75
On Time: 71 ( 95 % )
Moderate Delay: 2 ( 3 % )
Significant Delay: 0 ( 0 % )
Major Delay: 2 ( 3 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 5 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from November 17, 2025 to May 15, 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 May 02, 2025 to April 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 OU443

Date
Departure
Arrival
Duration
Aircraft
Status
Monday
18 May
19:46
Vienna (VIE)
20:24
Zagreb (ZAG)
00h 38min
De Havilland (
De Havilland (
Landed - On-time
Friday
15 May
19:52
Vienna (VIE)
20:36
Zagreb (ZAG)
00h 44min
De Havilland (
De Havilland (
Landed - On-time
Thursday
14 May
19:47
Vienna (VIE)
20:38
Zagreb (ZAG)
00h 51min
De Havilland (
De Havilland (
Landed - On-time
Wednesday
13 May
19:50
Vienna (VIE)
20:34
Zagreb (ZAG)
00h 44min
De Havilland (
De Havilland (
Landed - On-time
Tuesday
12 May
19:54
Vienna (VIE)
20:31
Zagreb (ZAG)
00h 37min
De Havilland (
De Havilland (
Landed - On-time
Monday
11 May
22:01
Vienna (VIE)
22:48
Zagreb (ZAG)
00h 47min
De Havilland (
De Havilland (
Landed - Delayed
Friday
08 May
19:57
Vienna (VIE)
20:49
Zagreb (ZAG)
00h 52min
De Havilland (
De Havilland (
Landed - On-time
Thursday
07 May
19:51
Vienna (VIE)
20:31
Zagreb (ZAG)
00h 40min
De Havilland (
De Havilland (
Landed - On-time
Wednesday
06 May
19:52
Vienna (VIE)
20:34
Zagreb (ZAG)
00h 42min
De Havilland (
De Havilland (
Landed - On-time
Tuesday
05 May
19:59
Vienna (VIE)
20:33
Zagreb (ZAG)
00h 34min
Airbus A220-30
Airbus A220-30
Landed - On-time