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(UA) United Airlines 4509 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(GSO) Piedmont Triad International Airport

Greensboro/High Point, NC, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
49%
Late
1
3%
Very Late
3
8%
Excessive
5
14%
Cancelled
5
14%
Diverted
5
14%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
32
Total Delays ( > 1 min )
13
Codeshares
32
Average Delay (min.)
49.23076923076923
Standard Deviation
54.8
Min
0
Max
209

UA 4509 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 56%
Average Delay Time 49.23076923076923 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 12% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 56%
This flight has an on-time performance of 56%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 49.23076923076923 min
This flight has an average delay of 49.23076923076923 minutes with a standard deviation of 54.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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