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(UA) United Airlines 4939 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(ITH) Ithaca Tompkins International Airport

Ithaca, NY, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
35
76%
Late
2
4%
Very Late
0
0%
Excessive
8
17%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
14
Codeshares
46
Average Delay (min.)
79.57142857142857
Standard Deviation
94.6
Min
0
Max
355

UA 4939 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 76%
Average Delay Time 79.57142857142857 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 22% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 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 46% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 79.57142857142857 min
This flight has an average delay of 79.57142857142857 minutes with a standard deviation of 94.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.