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(UA) United Airlines 4559 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(SCE) State College Regional Airport

State College, PA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
33
85%
Late
2
5%
Very Late
1
3%
Excessive
2
5%
Cancelled
0
0%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
38
Total Delays ( > 1 min )
11
Codeshares
38
Average Delay (min.)
24.818181818181817
Standard Deviation
31.8
Min
0
Max
102

UA 4559 On-Time Performance Details

Overall Rating
4.0 of 5
Good
Percentage On-Time 87%
Average Delay Time 24.818181818181817 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4 shows that this flight has on-time performance characteristics better than 78% of all other flights in the FlightStats database.
On-Time Performance Rating
4.6 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 24.818181818181817 min
This flight has an average delay of 24.818181818181817 minutes with a standard deviation of 31.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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