(UA) United Airlines 1535 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

83%

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.)

62.6

Standard Deviation

80.6

Min

Max

204

UA 1535 On-Time Performance Details

Overall Rating

2.2 of 5

Average

Percentage On-Time 83%

Average Delay Time 62.6 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 42% of all other flights in the FlightStats database.

On-Time Performance Rating

3.9 of 5

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 79% of other flights.

Delay Performance

0.4 of 5

Very Poor

Average Delay Time 62.6 min

This flight has an average delay of 62.6 minutes with a standard deviation of 80.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 8% of other flights.