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(ZH) Shenzhen Airlines 4499 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(CTU) Chengdu Shuangliu International Airport

Chengdu, CN

(LXA) Lhasa Gonggar Airport

Lhasa/Lasa, CN

On-Time Performance Chart

(using rounded numbers)
On-Time
53
87%
Late
3
5%
Very Late
3
5%
Excessive
1
2%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
23
Codeshares
61
Average Delay (min.)
17.956521739130434
Standard Deviation
33.6
Min
0
Max
164

ZH 4499 On-Time Performance Details

Overall Rating
4.8 of 5
Very Good
Percentage On-Time 87%
Average Delay Time 17.956521739130434 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.8 shows that this flight has on-time performance characteristics better than 95% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. 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
4.6 of 5
Very Good
Average Delay Time 17.956521739130434 min
This flight has an average delay of 17.956521739130434 minutes with a standard deviation of 33.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.