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(UL) SriLankan Airlines 121 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(CMB) Colombo Bandaranaike International Airport

Colombo, LK

(MAA) Chennai International Airport

Chennai, IN

On-Time Performance Chart

(using rounded numbers)
On-Time
21
35%
Late
17
28%
Very Late
8
13%
Excessive
12
20%
Cancelled
2
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
52
Codeshares
0
Average Delay (min.)
30.53846153846154
Standard Deviation
27.8
Min
0
Max
122

UL 121 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 35%
Average Delay Time 30.53846153846154 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 30% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 35%
This flight has an on-time performance of 35%. 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
3.1 of 5
Average
Average Delay Time 30.53846153846154 min
This flight has an average delay of 30.53846153846154 minutes with a standard deviation of 27.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.