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(QR) Qatar Airways 9521 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

(MIA) Miami International Airport

Miami, FL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
4
57%
Late
1
14%
Very Late
1
14%
Excessive
1
14%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
7
Total Delays ( > 1 min )
3
Codeshares
7
Average Delay (min.)
34
Standard Deviation
12
Min
0
Max
46

QR 9521 On-Time Performance Details

Overall Rating
1.5 of 5
Poor
Percentage On-Time 57%
Average Delay Time 34 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.5 shows that this flight has on-time performance characteristics better than 29% of all other flights in the FlightStats database.
On-Time Performance Rating
0.7 of 5
Poor
Percentage On-Time 57%
This flight has an on-time performance of 57%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 14% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 34 min
This flight has an average delay of 34 minutes with a standard deviation of 12 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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