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(UA) United Airlines 4637 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(BOI) Boise Air Terminal

Boise, ID, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
8
80%
Late
2
20%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
10
Total Delays ( > 1 min )
5
Codeshares
10
Average Delay (min.)
15.2
Standard Deviation
8.9
Min
0
Max
28

UA 4637 On-Time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 80%
Average Delay Time 15.2 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
3.1 of 5
Average
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 15.2 min
This flight has an average delay of 15.2 minutes with a standard deviation of 8.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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