(UA) United Airlines 4593 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(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

73%

Late

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.)

48.333333333333336

Standard Deviation

25.1

Min

Max

UA 4593 On-Time Performance Details

Overall Rating

1.9 of 5

Average

Percentage On-Time 76%

Average Delay Time 48.333333333333336 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 37% of all other flights in the FlightStats database.

On-Time Performance Rating

2.3 of 5

Average

Percentage On-Time 76%

This flight has an on-time performance of 76%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.

Delay Performance

1.5 of 5

Poor

Average Delay Time 48.333333333333336 min

This flight has an average delay of 48.333333333333336 minutes with a standard deviation of 25.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.