background

(AA) American Airlines 4921 On-time Performance Rating

Date Range:

15-Nov-2018 to 15-Jan-2019

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

(PHL) Philadelphia International Airport

Philadelphia, PA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
24
67%
Late
1
3%
Very Late
1
3%
Excessive
8
22%
Cancelled
2
6%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
13
Codeshares
36
Average Delay (min.)
60
Standard Deviation
46
Min
1
Max
134

AA 4921 On-time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 67%
Average Delay Time 60 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.
On-time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 67%
This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 7% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 60 min
This flight has an average delay of 60 minutes with a standard deviation of 46 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.