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(UA) United Airlines 5559 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(BIS) Bismarck Municipal Airport

Bismarck, ND, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
16
64%
Late
4
16%
Very Late
0
0%
Excessive
4
16%
Cancelled
0
0%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
24
Total Delays ( > 1 min )
9
Codeshares
24
Average Delay (min.)
42.111111111111114
Standard Deviation
30.8
Min
0
Max
76

UA 5559 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 67%
Average Delay Time 42.111111111111114 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 21% of all other flights in the FlightStats database.
On-Time Performance Rating
0.7 of 5
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 14% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 42.111111111111114 min
This flight has an average delay of 42.111111111111114 minutes with a standard deviation of 30.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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