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(QR) Qatar Airways 9139 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(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
14
52%
Late
7
26%
Very Late
2
7%
Excessive
3
11%
Cancelled
1
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
27
Total Delays ( > 1 min )
15
Codeshares
27
Average Delay (min.)
30.666666666666668
Standard Deviation
23.9
Min
0
Max
89

QR 9139 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 52%
Average Delay Time 30.666666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 52%
This flight has an on-time performance of 52%. 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
3.3 of 5
Average
Average Delay Time 30.666666666666668 min
This flight has an average delay of 30.666666666666668 minutes with a standard deviation of 23.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

Other Stops for QR 9139