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(UA) United Airlines 1639 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(RDM) Redmond Municipal Airport

Redmond, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
85%
Late
1
8%
Very Late
1
8%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
13
Total Delays ( > 1 min )
6
Codeshares
0
Average Delay (min.)
13.333333333333334
Standard Deviation
12.7
Min
0
Max
34

UA 1639 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 85%
Average Delay Time 13.333333333333334 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 84% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 86% of other flights.
Delay Performance
4.2 of 5
Good
Average Delay Time 13.333333333333334 min
This flight has an average delay of 13.333333333333334 minutes with a standard deviation of 12.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.

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