(UA) United Airlines 3599 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

On-Time Performance Chart

(using rounded numbers)

On-Time

85%

Late

15%

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.)

15.75

Standard Deviation

7.5

Min

Max

UA 3599 On-Time Performance Details

Overall Rating

3.9 of 5

Good

Percentage On-Time 85%

Average Delay Time 15.75 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.9 shows that this flight has on-time performance characteristics better than 76% of all other flights in the FlightStats database.

On-Time Performance Rating

4.1 of 5

Good

Percentage On-Time 85%

This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.

Delay Performance

3.6 of 5

Good

Average Delay Time 15.75 min

This flight has an average delay of 15.75 minutes with a standard deviation of 7.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.