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(UA) United Airlines 499 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
37
86%
Late
3
7%
Very Late
1
2%
Excessive
2
5%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
40.125
Standard Deviation
46.8
Min
0
Max
139

UA 499 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 86%
Average Delay Time 40.125 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 64% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 40.125 min
This flight has an average delay of 40.125 minutes with a standard deviation of 46.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.

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