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(UA) United Airlines 684 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(CHS) Charleston International Airport

Charleston, SC, US

On-Time Performance Chart

(using rounded numbers)
On-Time
40
80%
Late
0
0%
Very Late
2
4%
Excessive
6
12%
Cancelled
2
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
50
Total Delays ( > 1 min )
14
Codeshares
0
Average Delay (min.)
90.21428571428571
Standard Deviation
139.2
Min
0
Max
520

UA 684 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 80%
Average Delay Time 90.21428571428571 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 37% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 90.21428571428571 min
This flight has an average delay of 90.21428571428571 minutes with a standard deviation of 139.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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