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(UA) United Airlines 857 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(PVG) Shanghai Pudong International Airport

Shanghai, CN

On-Time Performance Chart

(using rounded numbers)
On-Time
45
79%
Late
8
14%
Very Late
0
0%
Excessive
4
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
57
Total Delays ( > 1 min )
22
Codeshares
0
Average Delay (min.)
26.681818181818183
Standard Deviation
41.4
Min
0
Max
195

UA 857 On-Time Performance Details

Overall Rating
3.2 of 5
Average
Percentage On-Time 79%
Average Delay Time 26.681818181818183 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 63% of all other flights in the FlightStats database.
On-Time Performance Rating
3.3 of 5
Average
Percentage On-Time 79%
This flight has an on-time performance of 79%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 66% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 26.681818181818183 min
This flight has an average delay of 26.681818181818183 minutes with a standard deviation of 41.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.