(UA) United Airlines 439 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-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

67%

Late

Very Late

Excessive

20%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

47.56

Standard Deviation

49.1

Min

Max

205

UA 439 On-Time Performance Details

Overall Rating

0.4 of 5

Very Poor

Percentage On-Time 67%

Average Delay Time 47.56 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

0.3 of 5

Very Poor

Percentage On-Time 67%

This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 5% of other flights.

Delay Performance

0.5 of 5

Very Poor

Average Delay Time 47.56 min

This flight has an average delay of 47.56 minutes with a standard deviation of 49.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.