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(UA) United Airlines 4179 On-Time Performance Rating

Date Range:

01-Apr-2025 to 31-May-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(RIC) Richmond International Airport

Richmond, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
10
48%
Late
4
19%
Very Late
2
10%
Excessive
5
24%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
21
Total Delays ( > 1 min )
14
Codeshares
21
Average Delay (min.)
39.857142857142854
Standard Deviation
33.2
Min
0
Max
121

UA 4179 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 48%
Average Delay Time 39.857142857142854 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 48%
This flight has an on-time performance of 48%. 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
1.4 of 5
Poor
Average Delay Time 39.857142857142854 min
This flight has an average delay of 39.857142857142854 minutes with a standard deviation of 33.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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