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(UA) United Airlines 439 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(AUS) Austin-Bergstrom International Airport

Austin, TX, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
26
60%
Late
5
12%
Very Late
5
12%
Excessive
4
9%
Cancelled
1
2%
Diverted
2
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
41
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
39
Standard Deviation
44.4
Min
0
Max
166

UA 439 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 63%
Average Delay Time 39 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 39 min
This flight has an average delay of 39 minutes with a standard deviation of 44.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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