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(UA) United Airlines 4840 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(CHO) Charlottesville Albemarle Airport

Charlottesville, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
37
60%
Late
1
2%
Very Late
1
2%
Excessive
19
31%
Cancelled
1
2%
Diverted
3
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
22
Codeshares
59
Average Delay (min.)
130.13636363636363
Standard Deviation
150.2
Min
0
Max
744

UA 4840 On-Time Performance Details

Overall Rating
0.0 of 5
Very Poor
Percentage On-Time 63%
Average Delay Time 130.13636363636363 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. 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
0.0 of 5
Very Poor
Average Delay Time 130.13636363636363 min
This flight has an average delay of 130.13636363636363 minutes with a standard deviation of 150.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.