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(UA) United Airlines 837 On-Time Performance Rating

Date Range:

01-Sep-2025 to 31-Oct-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(NRT) Tokyo Narita International Airport

Tokyo, JP

On-Time Performance Chart

(using rounded numbers)
On-Time
48
80%
Late
2
3%
Very Late
3
5%
Excessive
7
12%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
23
Codeshares
0
Average Delay (min.)
27.17391304347826
Standard Deviation
23.5
Min
0
Max
72

UA 837 On-Time Performance Details

Overall Rating
3.4 of 5
Average
Percentage On-Time 80%
Average Delay Time 27.17391304347826 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.4 shows that this flight has on-time performance characteristics better than 66% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 27.17391304347826 min
This flight has an average delay of 27.17391304347826 minutes with a standard deviation of 23.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.

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