Safety OPERATION DATA

May. 2017 
(01~31.May)(May. 1-31 2017)

calender
May.2017

2018

2017

2016

2015

2014

Number of flights

All international 
and domestic flights

30,649

Domestic 
Flights

26,186

International 
Flights

4,463

Actual operation rate

All international 
and domestic flights

99.2%

Domestic
flights

99.1%

Flights canceled

231

Due to weather

153

Due to equipment failure

18

Due to equipment operation

55

Other

5

International
flights

99.9%

Flights canceled

2

Due to weather

0

Due to equipment failure

0

Due to equipment operation

2

Other

0

On-time departure rate

All international 
and domestic flights

92.7%

Domestic
flights

93.0%

Departure flights delayed

1,825

Due to weather

36

Due to equipment failure

90

Due to equipment operation

1,293

Other

406

International
flights

90.6%

Departure flights delayed

418

Due to weather

5

Due to equipment failure

24

Due to equipment operation

84

Other

305

On-time arrival rate

All international 
and domestic flights

88.9%

Domestic
flights

89.3%

Arrival flights delayed

2,800

International
flights

86.4%

Arrival flights delayed

605

Flights diverted

Domestic flights

Flights diverted

19

Due to weather

16

Due to equipment failure

1

Other

2

International Flights

Flights diverted

2

Due to weather

0

Due to equipment failure

0

Other

2

Returned to airport of departure

Domestic flights

Flights returned to departure airport

24

Due to weather

20

Due to equipment failure

4

Other

0

International Flights

Flights returned to departure airport

0

Due to weather

0

Due to equipment failure

0

Other

0