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(UA) United Airlines 663 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(DEN) Denver International Airport

Denver, CO, US

(MFR) Rogue Valley International-Medford Airport

Medford, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
36
60%
Late
6
10%
Very Late
9
15%
Excessive
8
13%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
38
Codeshares
0
Average Delay (min.)
43
Standard Deviation
57.7
Min
0
Max
234

UA 663 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 60%
Average Delay Time 43 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.4 shows that this flight has on-time performance characteristics better than 7% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. 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
0.8 of 5
Poor
Average Delay Time 43 min
This flight has an average delay of 43 minutes with a standard deviation of 57.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

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