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(UA) United Airlines 4509 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(DSM) Des Moines International Airport

Des Moines, IA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
83%
Late
0
0%
Very Late
0
0%
Excessive
1
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
6
Total Delays ( > 1 min )
3
Codeshares
6
Average Delay (min.)
51
Standard Deviation
81.5
Min
0
Max
145

UA 4509 On-Time Performance Details

Overall Rating
2.8 of 5
Average
Percentage On-Time 83%
Average Delay Time 51 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.8 shows that this flight has on-time performance characteristics better than 54% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 83%
This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 51 min
This flight has an average delay of 51 minutes with a standard deviation of 81.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.

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