background

(UA) United Airlines 4291 On-Time Performance Rating

Date Range:

01-Sep-2025 to 31-Oct-2025

(BUF) Buffalo Niagara International Airport

Buffalo, NY, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
38
83%
Late
5
11%
Very Late
0
0%
Excessive
3
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
15
Codeshares
46
Average Delay (min.)
31.266666666666666
Standard Deviation
43.8
Min
0
Max
160

UA 4291 On-Time Performance Details

Overall Rating
3.1 of 5
Average
Percentage On-Time 83%
Average Delay Time 31.266666666666666 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.1 shows that this flight has on-time performance characteristics better than 61% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 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 82% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 31.266666666666666 min
This flight has an average delay of 31.266666666666666 minutes with a standard deviation of 43.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.

Other Stops for UA 4291