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)

2025.11.20 (Thu) 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	495	0	0	0	149
01~2Hour	0	0	122	0	0	0	63
02~3Hour	0	0	51	0	0	0	0
03~4Hour	39	6	234	0	0	0	0
04~5Hour	495	105	951	0	0	0	2
05~6Hour	1313	305	1486	0	2	0	85
06~7Hour	1585	672	709	37	102	6	354
07~8Hour	1695	866	1032	81	479	37	501
08~9Hour	1462	850	1357	10	392	79	712
09~10Hour	796	1128	1079	76	405	11	746
10~11Hour	972	1615	398	195	235	0	714
11~12Hour	1238	1384	222	188	223	0	714
12~13Hour	1209	1197	259	18	98	0	688
13~14Hour	1290	821	787	0	5	0	410
14~15Hour	797	637	1285	39	0	0	192
15~16Hour	377	437	1617	149	0	21	243
16~17Hour	360	350	1337	314	0	53	439
17~18Hour	282	314	1401	416	0	217	590
18~19Hour	139	587	1466	474	8	310	285
19~20Hour	170	656	1080	385	33	354	178
20~21Hour	87	286	543	106	112	261	155
21~22Hour	47	19	368	2	120	100	247
22~23Hour	1	0	26	0	8	5	139
23~24Hour	0	0	0	0	0	0	2