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(BA) British Airways 4139 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(HKG) Hong Kong International Airport

Hong Kong, HK

(MEL) Melbourne Tullamarine Airport

Melbourne, VIC, AU

On-Time Performance Chart

(using rounded numbers)
On-Time
34
77%
Late
3
7%
Very Late
5
11%
Excessive
1
2%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
26
Codeshares
44
Average Delay (min.)
16.76923076923077
Standard Deviation
17.1
Min
0
Max
78

BA 4139 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 77%
Average Delay Time 16.76923076923077 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 88% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 of 5
Good
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.
Delay Performance
4.8 of 5
Very Good
Average Delay Time 16.76923076923077 min
This flight has an average delay of 16.76923076923077 minutes with a standard deviation of 17.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 96% of other flights.