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(UA) United Airlines 4518 On-Time Performance Rating

Date Range:

01-Sep-2025 to 31-Oct-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
35
69%
Late
3
6%
Very Late
2
4%
Excessive
10
20%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
50
Total Delays ( > 1 min )
20
Codeshares
50
Average Delay (min.)
56.55
Standard Deviation
52.6
Min
0
Max
211

UA 4518 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 70%
Average Delay Time 56.55 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 4% of all other flights in the FlightStats database.
On-Time Performance Rating
0.5 of 5
Very Poor
Percentage On-Time 70%
This flight has an on-time performance of 70%. 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
0.0 of 5
Very Poor
Average Delay Time 56.55 min
This flight has an average delay of 56.55 minutes with a standard deviation of 52.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

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