background

(UL) SriLankan Airlines 3521 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(DOH) Doha Hamad International Airport

Doha, QA

(MAN) Manchester Airport

Manchester, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
39
64%
Late
15
25%
Very Late
3
5%
Excessive
4
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
41
Codeshares
61
Average Delay (min.)
25.536585365853657
Standard Deviation
39.6
Min
0
Max
220

UL 3521 On-Time Performance Details

Overall Rating
2.0 of 5
Average
Percentage On-Time 64%
Average Delay Time 25.536585365853657 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 38% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 64%
This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 25.536585365853657 min
This flight has an average delay of 25.536585365853657 minutes with a standard deviation of 39.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.