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(UL) SriLankan Airlines 2015 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(LHR) London Heathrow Airport

London, EN, GB

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
12
71%
Late
3
18%
Very Late
0
0%
Excessive
0
0%
Cancelled
2
12%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
4
Codeshares
17
Average Delay (min.)
21.75
Standard Deviation
5.7
Min
0
Max
26

UL 2015 On-Time Performance Details

Overall Rating
2.7 of 5
Average
Percentage On-Time 71%
Average Delay Time 21.75 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 53% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 21.75 min
This flight has an average delay of 21.75 minutes with a standard deviation of 5.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.