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(UA) United Airlines 4591 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(DCA) Ronald Reagan Washington National Airport

Washington, DC, US

(EWR) Newark Liberty International Airport

Newark, NJ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
50
83%
Late
1
2%
Very Late
1
2%
Excessive
4
7%
Cancelled
4
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
11
Codeshares
60
Average Delay (min.)
70.54545454545455
Standard Deviation
112.3
Min
0
Max
343

UA 4591 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 83%
Average Delay Time 70.54545454545455 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 46% of all other flights in the FlightStats database.
On-Time Performance Rating
4.6 of 5
Very Good
Percentage On-Time 83%
This flight has an on-time performance of 83%. 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
0.1 of 5
Very Poor
Average Delay Time 70.54545454545455 min
This flight has an average delay of 70.54545454545455 minutes with a standard deviation of 112.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.