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(UA) United Airlines 644 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(DEN) Denver International Airport

Denver, CO, US

(PDX) Portland International Airport

Portland, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
53
85%
Late
5
8%
Very Late
1
2%
Excessive
2
3%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
26
Codeshares
0
Average Delay (min.)
14.423076923076923
Standard Deviation
19.8
Min
0
Max
78

UA 644 On-Time Performance Details

Overall Rating
4.9 of 5
Very Good
Percentage On-Time 87%
Average Delay Time 14.423076923076923 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.9 shows that this flight has on-time performance characteristics better than 96% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
4.8 of 5
Very Good
Average Delay Time 14.423076923076923 min
This flight has an average delay of 14.423076923076923 minutes with a standard deviation of 19.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 96% of other flights.

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