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(UL) SriLankan Airlines 309 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(SIN) Singapore Changi Airport

Singapore, SG

(CMB) Colombo Bandaranaike International Airport

Colombo, LK

On-Time Performance Chart

(using rounded numbers)
On-Time
25
41%
Late
17
28%
Very Late
4
7%
Excessive
13
21%
Cancelled
2
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
49
Codeshares
0
Average Delay (min.)
39.183673469387756
Standard Deviation
52.2
Min
0
Max
291

UL 309 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 41%
Average Delay Time 39.183673469387756 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 5% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 41%
This flight has an on-time performance of 41%. 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
0.6 of 5
Poor
Average Delay Time 39.183673469387756 min
This flight has an average delay of 39.183673469387756 minutes with a standard deviation of 52.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 12% of other flights.