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(UA) United Airlines 4393 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(RIC) Richmond International Airport

Richmond, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
28
74%
Late
2
5%
Very Late
2
5%
Excessive
4
11%
Cancelled
1
3%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
37
Total Delays ( > 1 min )
10
Codeshares
37
Average Delay (min.)
72.5
Standard Deviation
116.4
Min
0
Max
397

UA 4393 On-Time Performance Details

Overall Rating
1.8 of 5
Average
Percentage On-Time 76%
Average Delay Time 72.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 34% of all other flights in the FlightStats database.
On-Time Performance Rating
3.3 of 5
Average
Percentage On-Time 76%
This flight has an on-time performance of 76%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 66% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 72.5 min
This flight has an average delay of 72.5 minutes with a standard deviation of 116.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

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