(UA) United Airlines 4518 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-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

64%

Late

36%

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

3.7

Min

Max

UA 4518 On-Time Performance Details

Overall Rating

2.1 of 5

Average

Percentage On-Time 64%

Average Delay Time 18 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 40% of all other flights in the FlightStats database.

On-Time Performance Rating

0.5 of 5

Very Poor

Percentage On-Time 64%

This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 10% of other flights.

Delay Performance

3.6 of 5

Good

Average Delay Time 18 min

This flight has an average delay of 18 minutes with a standard deviation of 3.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.