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Austrian Airlines

Is OS491 delayed?

Service date: · Scheduled departure date (Europe/Vienna)

Arrived

10 min late

Updated

Departure

Vienna

VIE

Actual

Scheduled 15:30

Aug 30

Arrival

Porto

OPO

Actual

Scheduled 16:45

Aug 30

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • VIE → OPO

    18 min early

  • VIE → OPO

    2 min early

  • VIE → OPO

    21 min early

  • VIE → OPO

    10 min early

  • VIE → OPO

    17 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
22
Arrivals over 15 minutes late
3
Observed cancellations
0
Observed occurrences
25

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

OS491 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedViennaPorto
-18
Sep 15, 2026ArrivedViennaPorto
-2
Sep 14, 2026ArrivedViennaPorto
-21
Sep 13, 2026ArrivedViennaPorto
-10
Sep 12, 2026ArrivedViennaPorto
-17
Sep 10, 2026ArrivedViennaPorto
-20
Sep 9, 2026ArrivedViennaPorto
13
Sep 8, 2026ArrivedViennaPorto
-16
Sep 7, 2026ArrivedViennaPorto
-8
Sep 6, 2026ArrivedViennaPorto
32
Sep 5, 2026ArrivedViennaPorto
7
Sep 3, 2026ArrivedViennaPorto
-15
Sep 2, 2026ArrivedViennaPorto
2
Sep 1, 2026ArrivedViennaPorto
-4
Aug 31, 2026ArrivedViennaPorto
2
Aug 30, 2026ArrivedViennaPorto
10
Aug 29, 2026ArrivedViennaPorto
9
Aug 27, 2026ArrivedViennaPorto
48
Aug 26, 2026ArrivedViennaPorto
8
Aug 25, 2026ArrivedViennaPorto
-4
Aug 24, 2026ArrivedViennaPorto
0
Aug 19, 2026ArrivedViennaPorto
56

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