Safety OPERATION DATA

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

calender
May.2017

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