Safety OPERATION DATA

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

calender
Jan.2018

2018

2017

2016

2015

2014

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