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(UA) United Airlines 4234 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(MHT) Manchester-Boston Regional Airport

Manchester, NH, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
63%
Late
1
4%
Very Late
2
7%
Excessive
4
15%
Cancelled
2
7%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
26
Total Delays ( > 1 min )
9
Codeshares
26
Average Delay (min.)
44.55555555555556
Standard Deviation
31.5
Min
0
Max
91

UA 4234 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 65%
Average Delay Time 44.55555555555556 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 23% of all other flights in the FlightStats database.
On-Time Performance Rating
0.9 of 5
Poor
Percentage On-Time 65%
This flight has an on-time performance of 65%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 44.55555555555556 min
This flight has an average delay of 44.55555555555556 minutes with a standard deviation of 31.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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