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(UA) United Airlines 439 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-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
35
76%
Late
2
4%
Very Late
1
2%
Excessive
7
15%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
16
Codeshares
0
Average Delay (min.)
72.1875
Standard Deviation
100.5
Min
0
Max
314

UA 439 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 78%
Average Delay Time 72.1875 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
2.1 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 72.1875 min
This flight has an average delay of 72.1875 minutes with a standard deviation of 100.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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