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(UA) United Airlines 5251 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(DEN) Denver International Airport

Denver, CO, US

(COS) Colorado Springs Airport

Colorado Springs, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
15
79%
Late
1
5%
Very Late
1
5%
Excessive
1
5%
Cancelled
1
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
19
Total Delays ( > 1 min )
5
Codeshares
19
Average Delay (min.)
29.2
Standard Deviation
32.2
Min
0
Max
81

UA 5251 On-Time Performance Details

Overall Rating
3.4 of 5
Average
Percentage On-Time 79%
Average Delay Time 29.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.4 shows that this flight has on-time performance characteristics better than 66% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 79%
This flight has an on-time performance of 79%. 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
3.1 of 5
Average
Average Delay Time 29.2 min
This flight has an average delay of 29.2 minutes with a standard deviation of 32.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.

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