(UA) United Airlines 4456 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(GSO) Piedmont Triad International Airport

Greensboro/High Point, NC, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

83%

Late

Very Late

Excessive

17%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

105.5

Standard Deviation

129.4

Min

Max

197

UA 4456 On-Time Performance Details

Overall Rating

1.7 of 5

Average

Percentage On-Time 83%

Average Delay Time 105.5 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.

On-Time Performance Rating

3.1 of 5

Average

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 62% of other flights.

Delay Performance

0.2 of 5

Very Poor

Average Delay Time 105.5 min

This flight has an average delay of 105.5 minutes with a standard deviation of 129.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.