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(UL) SriLankan Airlines 3171 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-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
13
30%
Late
11
25%
Very Late
5
11%
Excessive
15
34%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
36
Codeshares
44
Average Delay (min.)
45.44444444444444
Standard Deviation
39.4
Min
0
Max
185

UL 3171 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 30%
Average Delay Time 45.44444444444444 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 10% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 30%
This flight has an on-time performance of 30%. 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
1.1 of 5
Poor
Average Delay Time 45.44444444444444 min
This flight has an average delay of 45.44444444444444 minutes with a standard deviation of 39.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.