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(UA) United Airlines 4291 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-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
30
67%
Late
4
9%
Very Late
1
2%
Excessive
7
16%
Cancelled
3
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
18
Codeshares
45
Average Delay (min.)
64
Standard Deviation
94.5
Min
0
Max
355

UA 4291 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 67%
Average Delay Time 64 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 5% of all other flights in the FlightStats database.
On-Time Performance Rating
0.5 of 5
Very Poor
Percentage On-Time 67%
This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 10% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 64 min
This flight has an average delay of 64 minutes with a standard deviation of 94.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.

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