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(SQ) Singapore Airlines 8581 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(PER) Perth Airport

Perth, WA, AU

(SIN) Singapore Changi Airport

Singapore, SG

On-Time Performance Chart

(using rounded numbers)
On-Time
45
74%
Late
5
8%
Very Late
0
0%
Excessive
10
16%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
28
Codeshares
61
Average Delay (min.)
32.964285714285715
Standard Deviation
33.4
Min
0
Max
103

SQ 8581 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 74%
Average Delay Time 32.964285714285715 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.
On-Time Performance Rating
2.7 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 32.964285714285715 min
This flight has an average delay of 32.964285714285715 minutes with a standard deviation of 33.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.