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(JL) JAL 9639 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(DEL) Delhi Indira Gandhi International Airport

Delhi, IN

(STV) Surat Gujarat Airport

Surat Gujarat, IN

On-Time Performance Chart

(using rounded numbers)
On-Time
47
90%
Late
1
2%
Very Late
2
4%
Excessive
2
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
52
Total Delays ( > 1 min )
11
Codeshares
52
Average Delay (min.)
50.72727272727273
Standard Deviation
86.7
Min
0
Max
274

JL 9639 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 90%
Average Delay Time 50.72727272727273 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 56% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 50.72727272727273 min
This flight has an average delay of 50.72727272727273 minutes with a standard deviation of 86.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.