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(UA) United Airlines 451 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(BOI) Boise Air Terminal

Boise, ID, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
7
78%
Late
0
0%
Very Late
1
11%
Excessive
1
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
9
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
64.66666666666667
Standard Deviation
82.6
Min
0
Max
158

UA 451 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 78%
Average Delay Time 64.66666666666667 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 45% of all other flights in the FlightStats database.
On-Time Performance Rating
3.5 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 69% of other flights.
Delay Performance
1.1 of 5
Poor
Average Delay Time 64.66666666666667 min
This flight has an average delay of 64.66666666666667 minutes with a standard deviation of 82.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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