(UA) United Airlines 1581 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(BDL) Bradley International Airport

Hartford, CT, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

86%

Late

Very Late

Excessive

14%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

172.2

Standard Deviation

255.6

Min

Max

591

UA 1581 On-Time Performance Details

Overall Rating

2.0 of 5

Average

Percentage On-Time 86%

Average Delay Time 172.2 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 38% of all other flights in the FlightStats database.

On-Time Performance Rating

3.9 of 5

Good

Percentage On-Time 86%

This flight has an on-time performance of 86%. 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

0.0 of 5

Very Poor

Average Delay Time 172.2 min

This flight has an average delay of 172.2 minutes with a standard deviation of 255.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.