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(UA) United Airlines 4357 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(ROC) Frederick Douglass Greater Rochester Intl Airport

Rochester, NY, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
15
83%
Late
0
0%
Very Late
1
6%
Excessive
2
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
18
Total Delays ( > 1 min )
4
Codeshares
18
Average Delay (min.)
50.5
Standard Deviation
35.4
Min
0
Max
84

UA 4357 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 83%
Average Delay Time 50.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 46% of all other flights in the FlightStats database.
On-Time Performance Rating
3.5 of 5
Average
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 69% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 50.5 min
This flight has an average delay of 50.5 minutes with a standard deviation of 35.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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