(UA) United Airlines 4437 On-Time Performance Rating

Date Range:

15-Mar-2025 to 15-May-2025

(ORF) Norfolk International Airport

Norfolk, VA, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

79%

Late

14%

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.)

Standard Deviation

25.9

Min

Max

UA 4437 On-Time Performance Details

Overall Rating

3.1 of 5

Average

Percentage On-Time 79%

Average Delay Time 21 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.1 shows that this flight has on-time performance characteristics better than 61% of all other flights in the FlightStats database.

On-Time Performance Rating

2.7 of 5

Average

Percentage On-Time 79%

This flight has an on-time performance of 79%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.

Delay Performance

3.5 of 5

Average

Average Delay Time 21 min

This flight has an average delay of 21 minutes with a standard deviation of 25.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.