(UA) United Airlines 3597 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(YUL) Montreal-Trudeau International Airport

Montreal, QC, CA

On-Time Performance Chart

(using rounded numbers)

On-Time

94%

Late

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.)

9.6

Standard Deviation

13.4

Min

Max

UA 3597 On-Time Performance Details

Overall Rating

4.6 of 5

Very Good

Percentage On-Time 94%

Average Delay Time 9.6 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.6 shows that this flight has on-time performance characteristics better than 90% of all other flights in the FlightStats database.

On-Time Performance Rating

4.9 of 5

Very Good

Percentage On-Time 94%

This flight has an on-time performance of 94%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.

Delay Performance

4.2 of 5

Good

Average Delay Time 9.6 min

This flight has an average delay of 9.6 minutes with a standard deviation of 13.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.