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(UA) United Airlines 4603 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(PIA) General Wayne A. Downing Peoria Intl Airport

Peoria, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
40
70%
Late
4
7%
Very Late
2
4%
Excessive
6
11%
Cancelled
4
7%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
56
Total Delays ( > 1 min )
17
Codeshares
56
Average Delay (min.)
76.70588235294117
Standard Deviation
169.6
Min
0
Max
721

UA 4603 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 71%
Average Delay Time 76.70588235294117 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 22% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 76.70588235294117 min
This flight has an average delay of 76.70588235294117 minutes with a standard deviation of 169.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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