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(UA) United Airlines 5866 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(DEN) Denver International Airport

Denver, CO, US

(BIL) Billings Logan International Airport

Billings, MT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
14
78%
Late
0
0%
Very Late
2
11%
Excessive
1
6%
Cancelled
0
0%
Diverted
1
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
8
Codeshares
17
Average Delay (min.)
25.375
Standard Deviation
40.3
Min
0
Max
119

UA 5866 On-Time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 82%
Average Delay Time 25.375 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.5 shows that this flight has on-time performance characteristics better than 68% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 25.375 min
This flight has an average delay of 25.375 minutes with a standard deviation of 40.3 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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