The Airport Congestion Prediction is a service that provides information on the number of passengers using Incheon International Airport by time range so that the customers can check the time-basis congestion status at the airport in advance.
In case of a change in flight departure/arrival time, boarding gate, etc., the predicted number of passengers on the airport congestion prediction in the website updated in real time and the values on the airport congestion prediction before change may not match.
The predication data is updated every day at 17:00. (D +2 days: Departure airport congestion prediction , D +1 day: airport congestion prediction at departure and transit)

2025.05.19 (Mon) Airport Passenger Departure time zone warning status

No alarms assigned

(Unit: piece, people, t)

Airport congestion expected by route lookup table
Time	Japan	China	Southeast Asia	Americas	Europe	Oceania	Others
00~1Hour	0	0	274	0	0	0	201
01~2Hour	0	0	19	0	0	0	3
02~3Hour	0	0	36	0	0	0	0
03~4Hour	20	0	191	0	0	0	0
04~5Hour	298	45	687	0	0	0	0
05~6Hour	1135	242	1165	0	0	2	27
06~7Hour	1770	944	1058	14	56	56	242
07~8Hour	1787	1194	1016	130	452	209	821
08~9Hour	1196	830	1067	191	996	121	849
09~10Hour	904	715	1032	130	614	39	472
10~11Hour	1025	1071	281	172	557	0	421
11~12Hour	963	740	124	136	127	0	435
12~13Hour	837	473	252	216	0	0	383
13~14Hour	1090	525	522	182	0	0	347
14~15Hour	588	498	821	222	0	0	320
15~16Hour	410	157	902	401	0	14	241
16~17Hour	380	138	1004	336	0	43	217
17~18Hour	205	210	1157	155	14	194	307
18~19Hour	130	334	822	409	49	395	317
19~20Hour	154	350	607	407	173	347	136
20~21Hour	83	310	480	62	200	228	309
21~22Hour	28	193	248	0	178	20	330
22~23Hour	0	45	107	0	30	0	163
23~24Hour	0	0	3	0	0	0	6