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(UA) United Airlines 4789 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(GEG) Spokane International Airport

Spokane, WA, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
14
88%
Late
1
6%
Very Late
1
6%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
6
Codeshares
16
Average Delay (min.)
15.166666666666666
Standard Deviation
16
Min
0
Max
44

UA 4789 On-Time Performance Details

Overall Rating
4.1 of 5
Good
Percentage On-Time 88%
Average Delay Time 15.166666666666666 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.1 shows that this flight has on-time performance characteristics better than 80% of all other flights in the FlightStats database.
On-Time Performance Rating
4.2 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 84% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 15.166666666666666 min
This flight has an average delay of 15.166666666666666 minutes with a standard deviation of 16 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.

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