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(KE) Korean Air 3539 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(FSD) Sioux Falls Regional Airport

Sioux Falls, SD, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
67%
Late
8
13%
Very Late
2
3%
Excessive
7
11%
Cancelled
2
3%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
27
Codeshares
61
Average Delay (min.)
52.592592592592595
Standard Deviation
99.6
Min
0
Max
494

KE 3539 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 69%
Average Delay Time 52.592592592592595 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 4% of all other flights in the FlightStats database.
On-Time Performance Rating
0.4 of 5
Very Poor
Percentage On-Time 69%
This flight has an on-time performance of 69%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 8% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 52.592592592592595 min
This flight has an average delay of 52.592592592592595 minutes with a standard deviation of 99.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 3% of other flights.