(UA) United Airlines 4739 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(FAT) Fresno Yosemite International Airport

Fresno, CA, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

45%

Late

10%

Very Late

20%

Excessive

25%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

53.125

Standard Deviation

78.8

Min

Max

325

UA 4739 On-Time Performance Details

Overall Rating

0.1 of 5

Very Poor

Percentage On-Time 45%

Average Delay Time 53.125 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.

On-Time Performance Rating

0.0 of 5

Very Poor

Percentage On-Time 45%

This flight has an on-time performance of 45%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.

Delay Performance

0.2 of 5

Very Poor

Average Delay Time 53.125 min

This flight has an average delay of 53.125 minutes with a standard deviation of 78.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.