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(UL) SriLankan Airlines 3171 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(DOH) Doha Hamad International Airport

Doha, QA

On-Time Performance Chart

(using rounded numbers)
On-Time
36
77%
Late
5
11%
Very Late
2
4%
Excessive
4
9%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
17
Codeshares
47
Average Delay (min.)
38.05882352941177
Standard Deviation
43.4
Min
0
Max
145

UL 3171 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 77%
Average Delay Time 38.05882352941177 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-Time Performance Rating
3.1 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
1.9 of 5
Average
Average Delay Time 38.05882352941177 min
This flight has an average delay of 38.05882352941177 minutes with a standard deviation of 43.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.