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(UL) SriLankan Airlines 3171 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-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
30
73%
Late
5
12%
Very Late
2
5%
Excessive
4
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
41
Total Delays ( > 1 min )
21
Codeshares
41
Average Delay (min.)
25.285714285714285
Standard Deviation
29.6
Min
0
Max
97

UL 3171 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 73%
Average Delay Time 25.285714285714285 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 42% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 25.285714285714285 min
This flight has an average delay of 25.285714285714285 minutes with a standard deviation of 29.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.