(UA) United Airlines 591 On-Time Performance Rating

Date Range:

01-Apr-2025 to 31-May-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(EWR) Newark Liberty International Airport

Newark, NJ, US

On-Time Performance Chart

(using rounded numbers)

On-Time

65%

Late

24%

Very Late

Excessive

12%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

46.125

Standard Deviation

60.2

Min

Max

189

UA 591 On-Time Performance Details

Overall Rating

0.9 of 5

Poor

Percentage On-Time 65%

Average Delay Time 46.125 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.9 shows that this flight has on-time performance characteristics better than 16% of all other flights in the FlightStats database.

On-Time Performance Rating

0.6 of 5

Poor

Percentage On-Time 65%

This flight has an on-time performance of 65%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 12% of other flights.

Delay Performance

1.1 of 5

Poor

Average Delay Time 46.125 min

This flight has an average delay of 46.125 minutes with a standard deviation of 60.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.