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(UA) United Airlines 4556 On-Time Performance Rating

Date Range:

01-Sep-2025 to 31-Oct-2025

(EWR) Newark Liberty International Airport

Newark, NJ, US

(BUF) Buffalo Niagara International Airport

Buffalo, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
2
33%
Late
1
17%
Very Late
0
0%
Excessive
2
33%
Cancelled
1
17%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
6
Total Delays ( > 1 min )
5
Codeshares
6
Average Delay (min.)
76
Standard Deviation
86.8
Min
0
Max
177

UA 4556 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 33%
Average Delay Time 76 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 33%
This flight has an on-time performance of 33%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 76 min
This flight has an average delay of 76 minutes with a standard deviation of 86.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.

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