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(S4) Azores Airlines 8631 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

(LIS) Lisbon Humberto Delgado Airport

Lisbon, PT

On-Time Performance Chart

(using rounded numbers)
On-Time
27
47%
Late
10
18%
Very Late
7
12%
Excessive
13
23%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
57
Total Delays ( > 1 min )
42
Codeshares
57
Average Delay (min.)
31.666666666666668
Standard Deviation
22.2
Min
0
Max
90

S4 8631 On-Time Performance Details

Overall Rating
1.5 of 5
Poor
Percentage On-Time 47%
Average Delay Time 31.666666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.5 shows that this flight has on-time performance characteristics better than 28% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 47%
This flight has an on-time performance of 47%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 31.666666666666668 min
This flight has an average delay of 31.666666666666668 minutes with a standard deviation of 22.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.