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(UA) United Airlines 663 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(SJC) San Jose Mineta International Airport

San Jose, CA, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
71%
Late
1
14%
Very Late
0
0%
Excessive
1
14%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
7
Total Delays ( > 1 min )
4
Codeshares
0
Average Delay (min.)
24
Standard Deviation
25.8
Min
0
Max
62

UA 663 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 71%
Average Delay Time 24 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 24 min
This flight has an average delay of 24 minutes with a standard deviation of 25.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.

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