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(UA) United Airlines 644 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(DEN) Denver International Airport

Denver, CO, US

(PDX) Portland International Airport

Portland, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
9
82%
Late
0
0%
Very Late
1
9%
Excessive
0
0%
Cancelled
0
0%
Diverted
1
9%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
10
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
17
Standard Deviation
18.4
Min
0
Max
30

UA 644 On-Time Performance Details

Overall Rating
3.8 of 5
Good
Percentage On-Time 90%
Average Delay Time 17 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.8 shows that this flight has on-time performance characteristics better than 75% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. 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
3.3 of 5
Average
Average Delay Time 17 min
This flight has an average delay of 17 minutes with a standard deviation of 18.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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