background

(AI) Air India 309 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(MEL) Melbourne Tullamarine Airport

Melbourne, VIC, AU

(DEL) Delhi Indira Gandhi International Airport

Delhi, IN

On-Time Performance Chart

(using rounded numbers)
On-Time
26
57%
Late
8
17%
Very Late
1
2%
Excessive
8
17%
Cancelled
0
0%
Diverted
3
7%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
24
Codeshares
0
Average Delay (min.)
47.708333333333336
Standard Deviation
56.2
Min
0
Max
209

AI 309 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 61%
Average Delay Time 47.708333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 4% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.
Delay Performance
0.4 of 5
Very Poor
Average Delay Time 47.708333333333336 min
This flight has an average delay of 47.708333333333336 minutes with a standard deviation of 56.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 8% of other flights.