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(TWB) T'way Air 831 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(CJJ) Cheongju International Airport

Cheongju, KR

(CJU) Jeju International Airport

Jeju, KR

On-Time Performance Chart

(using rounded numbers)
On-Time
34
67%
Late
7
14%
Very Late
3
6%
Excessive
6
12%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
51
Total Delays ( > 1 min )
32
Codeshares
0
Average Delay (min.)
35.75
Standard Deviation
55.5
Min
0
Max
225

TWB 831 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 67%
Average Delay Time 35.75 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
0.4 of 5
Very Poor
Percentage On-Time 67%
This flight has an on-time performance of 67%. 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
1.9 of 5
Average
Average Delay Time 35.75 min
This flight has an average delay of 35.75 minutes with a standard deviation of 55.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.