Safety OPERATION DATA

Jan. 2018 
(01~31.Jan)(Jan. 1-31 2018)

calender
Jan.2018

Number of flights

All international 
and domestic flights

30,243

Domestic 
Flights

25,712

International 
Flights

4,531

Actual operation rate

All international 
and domestic flights

98.0%

Domestic
flights

97.8%

Flights canceled

582

Due to weather

404

Due to equipment failure

35

Due to equipment operation

133

Other

10

International
flights

99.1%

Flights canceled

42

Due to weather

24

Due to equipment failure

2

Due to equipment operation

16

Other

0

On-time departure rate

All international 
and domestic flights

85.2%

Domestic
flights

84.9%

Departure flights delayed

3,887

Due to weather

193

Due to equipment failure

80

Due to equipment operation

3,052

Other

562

International
flights

86.7%

Departure flights delayed

601

Due to weather

41

Due to equipment failure

31

Due to equipment operation

192

Other

337

On-time arrival rate

All international 
and domestic flights

79.6%

Domestic
flights

78.9%

Arrival flights delayed

5,415

International
flights

83.4%

Arrival flights delayed

752

Flights diverted

Domestic flights

Flights diverted

9

Due to weather

8

Due to equipment failure

0

Other

1

International Flights

Flights diverted

11

Due to weather

7

Due to equipment failure

1

Other

3

Returned to airport of departure

Domestic flights

Flights returned to departure airport

26

Due to weather

22

Due to equipment failure

3

Other

1

International Flights

Flights returned to departure airport

1

Due to weather

0

Due to equipment failure

1

Other

0