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(UA) United Airlines 4291 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
73%
Late
0
0%
Very Late
0
0%
Excessive
3
20%
Cancelled
1
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
15
Total Delays ( > 1 min )
5
Codeshares
15
Average Delay (min.)
57.2
Standard Deviation
63.6
Min
0
Max
163

UA 4291 On-Time Performance Details

Overall Rating
1.3 of 5
Poor
Percentage On-Time 73%
Average Delay Time 57.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.3 shows that this flight has on-time performance characteristics better than 25% of all other flights in the FlightStats database.
On-Time Performance Rating
1.7 of 5
Average
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 34% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 57.2 min
This flight has an average delay of 57.2 minutes with a standard deviation of 63.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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