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(UA) United Airlines 4451 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SGF) Springfield-Branson National Airport

Springfield, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
74%
Late
1
2%
Very Late
1
2%
Excessive
6
11%
Cancelled
6
11%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
56
Total Delays ( > 1 min )
13
Codeshares
56
Average Delay (min.)
54.76923076923077
Standard Deviation
61.4
Min
0
Max
191

UA 4451 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 75%
Average Delay Time 54.76923076923077 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 43% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 75%
This flight has an on-time performance of 75%. 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
0.8 of 5
Poor
Average Delay Time 54.76923076923077 min
This flight has an average delay of 54.76923076923077 minutes with a standard deviation of 61.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

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