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(UA) United Airlines 4059 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(BDL) Bradley International Airport

Hartford, CT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
77%
Late
1
5%
Very Late
0
0%
Excessive
3
14%
Cancelled
1
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
22
Total Delays ( > 1 min )
8
Codeshares
22
Average Delay (min.)
47.125
Standard Deviation
67.5
Min
0
Max
166

UA 4059 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 77%
Average Delay Time 47.125 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 31% of all other flights in the FlightStats database.
On-Time Performance Rating
2.1 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.
Delay Performance
1.1 of 5
Poor
Average Delay Time 47.125 min
This flight has an average delay of 47.125 minutes with a standard deviation of 67.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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