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(S4) Azores Airlines 121 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(LIS) Lisbon Humberto Delgado Airport

Lisbon, PT

(PDL) Ponta Delgada Joao Paulo II Airport

Ponta Delgada (Azores), PT

On-Time Performance Chart

(using rounded numbers)
On-Time
49
79%
Late
3
5%
Very Late
3
5%
Excessive
4
6%
Cancelled
1
2%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
58.61904761904762
Standard Deviation
121.7
Min
0
Max
541

S4 121 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 82%
Average Delay Time 58.61904761904762 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 45% of all other flights in the FlightStats database.
On-Time Performance Rating
4.4 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 88% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 58.61904761904762 min
This flight has an average delay of 58.61904761904762 minutes with a standard deviation of 121.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.