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(QR) Qatar Airways 9139 On-Time Performance Rating

Date Range:

15-May-2025 to 15-Jul-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
60%
Late
3
10%
Very Late
1
3%
Excessive
7
23%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
30
Total Delays ( > 1 min )
16
Codeshares
30
Average Delay (min.)
48.3125
Standard Deviation
57.9
Min
0
Max
235

QR 9139 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 60%
Average Delay Time 48.3125 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 11% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 5% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 48.3125 min
This flight has an average delay of 48.3125 minutes with a standard deviation of 57.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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