(UA) United Airlines 4603 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-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

74%

Late

Very Late

Excessive

13%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

132.16666666666666

Standard Deviation

229.4

Min

Max

595

UA 4603 On-Time Performance Details

Overall Rating

0.7 of 5

Poor

Percentage On-Time 74%

Average Delay Time 132.16666666666666 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.

On-Time Performance Rating

1.4 of 5

Poor

Percentage On-Time 74%

This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.

Delay Performance

0.0 of 5

Very Poor

Average Delay Time 132.16666666666666 min

This flight has an average delay of 132.16666666666666 minutes with a standard deviation of 229.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.