(UA) United Airlines 1581 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(CMH) John Glenn Columbus International Airport

Columbus, OH, US

On-Time Performance Chart

(using rounded numbers)

On-Time

72%

Late

Very Late

Excessive

11%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

43.111111111111114

Standard Deviation

63.9

Min

Max

181

UA 1581 On-Time Performance Details

Overall Rating

1.8 of 5

Average

Percentage On-Time 77%

Average Delay Time 43.111111111111114 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 34% of all other flights in the FlightStats database.

On-Time Performance Rating

2.1 of 5

Average

Percentage On-Time 77%

This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.

Delay Performance

1.4 of 5

Poor

Average Delay Time 43.111111111111114 min

This flight has an average delay of 43.111111111111114 minutes with a standard deviation of 63.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.