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(UA) United Airlines 858 On-Time Performance Rating

Date Range:

15-Mar-2025 to 15-May-2025

(PVG) Shanghai Pudong International Airport

Shanghai, CN

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
43
70%
Late
8
13%
Very Late
7
11%
Excessive
3
5%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
31
Codeshares
0
Average Delay (min.)
32.516129032258064
Standard Deviation
72.9
Min
0
Max
416

UA 858 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 71%
Average Delay Time 32.516129032258064 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 23% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 7% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 32.516129032258064 min
This flight has an average delay of 32.516129032258064 minutes with a standard deviation of 72.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.