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(UA) United Airlines 4739 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(FAT) Fresno Yosemite International Airport

Fresno, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
61%
Late
3
7%
Very Late
4
10%
Excessive
7
17%
Cancelled
0
0%
Diverted
2
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
39
Total Delays ( > 1 min )
21
Codeshares
39
Average Delay (min.)
39.23809523809524
Standard Deviation
35
Min
0
Max
117

UA 4739 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 64%
Average Delay Time 39.23809523809524 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 64%
This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 3% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 39.23809523809524 min
This flight has an average delay of 39.23809523809524 minutes with a standard deviation of 35 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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