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(AA) American Airlines 3977 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(CHA) Chattanooga Metropolitan Airport

Chattanooga, TN, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
77%
Late
0
0%
Very Late
0
0%
Excessive
4
18%
Cancelled
0
0%
Diverted
1
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
21
Total Delays ( > 1 min )
7
Codeshares
21
Average Delay (min.)
42.42857142857143
Standard Deviation
35.9
Min
0
Max
90

AA 3977 On-Time Performance Details

Overall Rating
2.7 of 5
Average
Percentage On-Time 81%
Average Delay Time 42.42857142857143 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 52% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 81%
This flight has an on-time performance of 81%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 42.42857142857143 min
This flight has an average delay of 42.42857142857143 minutes with a standard deviation of 35.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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