(UA) United Airlines 4779 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(RNO) Reno-Tahoe International Airport

Reno, NV, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

64%

Late

14%

Very Late

Excessive

14%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

31.428571428571427

Standard Deviation

24.8

Min

Max

UA 4779 On-Time Performance Details

Overall Rating

1.8 of 5

Average

Percentage On-Time 64%

Average Delay Time 31.428571428571427 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 34% of all other flights in the FlightStats database.

On-Time Performance Rating

0.8 of 5

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 16% of other flights.

Delay Performance

2.7 of 5

Average

Average Delay Time 31.428571428571427 min

This flight has an average delay of 31.428571428571427 minutes with a standard deviation of 24.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.