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(JL) JAL 7639 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-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
44
69%
Late
3
5%
Very Late
4
6%
Excessive
5
8%
Cancelled
5
8%
Diverted
3
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
17
Codeshares
61
Average Delay (min.)
46.8235294117647
Standard Deviation
56.7
Min
0
Max
232

JL 7639 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 72%
Average Delay Time 46.8235294117647 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 15% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
0.8 of 5
Poor
Average Delay Time 46.8235294117647 min
This flight has an average delay of 46.8235294117647 minutes with a standard deviation of 56.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.