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(UA) United Airlines 4777 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(SNA) John Wayne Airport

Santa Ana, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
21
88%
Late
1
4%
Very Late
0
0%
Excessive
2
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
24
Total Delays ( > 1 min )
6
Codeshares
24
Average Delay (min.)
29.5
Standard Deviation
32.6
Min
0
Max
73

UA 4777 On-Time Performance Details

Overall Rating
3.6 of 5
Good
Percentage On-Time 88%
Average Delay Time 29.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.6 shows that this flight has on-time performance characteristics better than 70% of all other flights in the FlightStats database.
On-Time Performance Rating
4.4 of 5
Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 88% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 29.5 min
This flight has an average delay of 29.5 minutes with a standard deviation of 32.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

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