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(UA) United Airlines 4187 On-Time Performance Rating

Date Range:

01-Mar-2025 to 30-Apr-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(EWR) Newark Liberty International Airport

Newark, NJ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
19
66%
Late
3
10%
Very Late
1
3%
Excessive
5
17%
Cancelled
0
0%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
13
Codeshares
28
Average Delay (min.)
66.3076923076923
Standard Deviation
82.1
Min
0
Max
246

UA 4187 On-Time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 68%
Average Delay Time 66.3076923076923 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 7% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 66.3076923076923 min
This flight has an average delay of 66.3076923076923 minutes with a standard deviation of 82.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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