background

(JL) JAL 7639 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(DAY) James M Cox Dayton International Airport

Dayton, OH, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
39
63%
Late
4
6%
Very Late
3
5%
Excessive
12
19%
Cancelled
3
5%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
25
Codeshares
61
Average Delay (min.)
84.44
Standard Deviation
128.9
Min
0
Max
514

JL 7639 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 64%
Average Delay Time 84.44 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 64%
This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 84.44 min
This flight has an average delay of 84.44 minutes with a standard deviation of 128.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.