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(UA) United Airlines 4660 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(HLN) Helena Regional Airport

Helena, MT, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
55
90%
Late
1
2%
Very Late
2
3%
Excessive
2
3%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
12
Codeshares
61
Average Delay (min.)
43.916666666666664
Standard Deviation
79.4
Min
0
Max
276

UA 4660 On-Time Performance Details

Overall Rating
3.1 of 5
Average
Percentage On-Time 90%
Average Delay Time 43.916666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.1 shows that this flight has on-time performance characteristics better than 61% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very 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 100% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 43.916666666666664 min
This flight has an average delay of 43.916666666666664 minutes with a standard deviation of 79.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.