Safety OPERATION DATA

Apr. 2017 
(01~30.Apr)(Apr. 1-30 2017)

calender
Apr.2017

Number of flights

All international 
and domestic flights

29,343

Domestic 
Flights

25,069

International 
Flights

4,274

Actual operation rate

All international 
and domestic flights

99.0%

Domestic
flights

98.8%

Flights canceled

298

Due to weather

175

Due to equipment failure

19

Due to equipment operation

88

Other

16

International
flights

99.9%

Flights canceled

3

Due to weather

0

Due to equipment failure

2

Due to equipment operation

0

Other

1

On-time departure rate

All international 
and domestic flights

91.2%

Domestic
flights

91.8%

Departure flights delayed

2,045

Due to weather

33

Due to equipment failure

84

Due to equipment operation

1,509

Other

419

International
flights

87.5%

Departure flights delayed

533

Due to weather

13

Due to equipment failure

26

Due to equipment operation

104

Other

390

On-time arrival rate

All international 
and domestic flights

85.4%

Domestic
flights

86.5%

Arrival flights delayed

3,396

International
flights

79.5%

Arrival flights delayed

876

Flights diverted

Domestic flights

Flights diverted

13

Due to weather

7

Due to equipment failure

0

Other

6

International Flights

Flights diverted

3

Due to weather

0

Due to equipment failure

1

Other

2

Returned to airport of departure

Domestic flights

Flights returned to departure airport

39

Due to weather

37

Due to equipment failure

2

Other

0

International Flights

Flights returned to departure airport

1

Due to weather

0

Due to equipment failure

1

Other

0