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(UA) United Airlines 4291 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(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
21
55%
Late
3
8%
Very Late
2
5%
Excessive
8
21%
Cancelled
3
8%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
37
Total Delays ( > 1 min )
21
Codeshares
37
Average Delay (min.)
62.095238095238095
Standard Deviation
77.6
Min
0
Max
294

UA 4291 On-Time Performance Details

Overall Rating
0.0 of 5
Very Poor
Percentage On-Time 57%
Average Delay Time 62.095238095238095 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 57%
This flight has an on-time performance of 57%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 62.095238095238095 min
This flight has an average delay of 62.095238095238095 minutes with a standard deviation of 77.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

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