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(UA) United Airlines 4986 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(MDT) Harrisburg International Airport

Middletown, PA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
43
73%
Late
1
2%
Very Late
1
2%
Excessive
9
15%
Cancelled
2
3%
Diverted
3
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
56
Total Delays ( > 1 min )
15
Codeshares
56
Average Delay (min.)
96.4
Standard Deviation
118.5
Min
0
Max
381

UA 4986 On-Time Performance Details

Overall Rating
1.8 of 5
Average
Percentage On-Time 77%
Average Delay Time 96.4 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 35% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
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 73% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 96.4 min
This flight has an average delay of 96.4 minutes with a standard deviation of 118.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.