$327+ Cheap flights from Illinois to Incheon Intl (ICN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ICN
Mar 15 — Mar 221
1 adult, Economy
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Find cheap flights from Illinois to Incheon Intl with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Illinois to Incheon IntlExplore the most affordable flight options available from Illinois to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
Explore the most affordable flight options available from Illinois to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Mon 4/276:00 pm
ICN
- ORD
2 stops26h 47m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$731
This BusinessClass deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
STL
- ICN
1 stop20h 35m
Multiple Airlines
Mon 3/98:35 pm
ICN
- STL
1 stop31h 16m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$739
This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/227:00 am
STL
- ICN
1 stop21h 35m
Multiple Airlines
Thu 4/28:35 pm
ICN
- STL
1 stop17h 24m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$767
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:14 pm
ORD
- ICN
1 stop28h 31m
Multiple Airlines
Wed 4/296:00 pm
ICN
- ORD
2 stops26h 47m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$769
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:21 pm
ORD
- ICN
1 stop30h 24m
Multiple Airlines
Wed 4/296:00 pm
ICN
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$780
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Thu 4/307:25 am
ICN
- ORD
2 stops36h 25m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$787
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:09 pm
ORD
- ICN
1 stop22h 06m
Multiple Airlines
Wed 4/296:00 pm
ICN
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$794
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:31 am
ORD
- ICN
1 stop32h 44m
Multiple Airlines
Wed 4/296:00 pm
ICN
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$796
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:09 pm
ORD
- ICN
1 stop22h 06m
Multiple Airlines
Fri 5/86:00 pm
ICN
- ORD
2 stops26h 47m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$797
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:51 pm
ORD
- ICN
1 stop20h 49m
Multiple Airlines
Mon 3/166:55 pm
ICN
- ORD
2 stops25h 13m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$807
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:09 pm
ORD
- ICN
1 stop22h 06m
Multiple Airlines
Thu 5/1412:55 pm
ICN
- ORD
2 stops54h 55m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$810
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Sun 3/158:35 pm
ICN
- ORD
2 stops35h 54m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$813
Best flights from Illinois to Incheon IntlDiscover carefully curated flight deals from Illinois to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
Discover carefully curated flight deals from Illinois to Incheon Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
This American Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:11 pm
STL
- ICN
1 stop31h 34m
American Airlines
Thu 4/305:50 pm
ICN
- STL
2 stops28h 34m
American Airlines
Deal found 2/11![American Airlines logo]()
$877
This Turkish Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:20 pm
ORD
- ICN
1 stop31h 00m
Turkish Airlines
Mon 3/912:10 am
ICN
- ORD
1 stop24h 55m
Turkish Airlines
Deal found 2/11![Turkish Airlines logo]()
$884
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:54 am
STL
- ICN
2 stops29h 26m
United Airlines
Wed 4/2211:30 am
ICN
- STL
2 stops19h 26m
United Airlines
Deal found 2/10![United Airlines logo]()
$915
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 am
STL
- ICN
1 stop18h 10m
Delta
Wed 5/610:15 am
ICN
- STL
1 stop24h 27m
Delta
Deal found 2/9![Delta logo]()
$917
This Air Canada deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Thu 4/235:45 pm
ICN
- STL
2 stops35h 39m
Air Canada
Deal found 2/10![Air Canada logo]()
$917
This China Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:50 pm
MDW
- ICN
2 stops26h 40m
Multiple Airlines
Wed 5/208:05 pm
ICN
- MDW
2 stops23h 45m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,195
This EVA Air deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/812:30 am
ORD
- ICN
1 stop28h 15m
EVA Air
Thu 3/1211:40 am
ICN
- ORD
1 stop22h 55m
EVA Air
Deal found 2/10![EVA Air logo]()
$1,250
This Finnair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/69:30 pm
ORD
- ICN
1 stop23h 50m
Finnair
Mon 7/209:50 pm
ICN
- ORD
1 stop34h 00m
Finnair
Deal found 2/10![Finnair logo]()
$1,412
This Alaska Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:46 pm
ORD
- ICN
2 stops31h 44m
Alaska Airlines
Fri 8/147:35 pm
ICN
- ORD
2 stops31h 41m
Alaska Airlines
Deal found 2/11![Alaska Airlines logo]()
$1,638
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:19 am
STL
- ICN
1 stop21h 01m
Delta
Wed 4/227:20 pm
ICN
- STL
1 stop19h 05m
Delta
Deal found 2/10![Delta logo]()
$917
This United Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:51 am
STL
- ICN
1 stop18h 24m
United Airlines
Tue 3/1011:45 am
ICN
- STL
1 stop24h 40m
United Airlines
Deal found 2/11![United Airlines logo]()
$917
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:54 pm
CMI
- ICN
1 stop34h 51m
American Airlines
Wed 3/115:55 pm
ICN
- CMI
1 stop16h 59m
American Airlines
Deal found 2/10![American Airlines logo]()
$974
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:02 pm
STL
- ICN
1 stop24h 58m
Delta
Sun 4/267:20 pm
ICN
- STL
1 stop19h 05m
Delta
Deal found 2/11![Delta logo]()
$917
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1110:07 am
STL
- ICN
1 stop27h 53m
Delta
Fri 4/177:20 pm
ICN
- STL
1 stop19h 05m
Delta
Deal found 2/11![Delta logo]()
$917
This China Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:24 pm
ORD
- ICN
2 stops26h 06m
Multiple Airlines
Fri 5/812:45 pm
ICN
- ORD
2 stops25h 10m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,197
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:40 pm
MLI
- ICN
2 stops31h 05m
American Airlines
Fri 5/15:50 pm
ICN
- MLI
1 stop19h 39m
American Airlines
Deal found 2/10![American Airlines logo]()
$1,193
This China Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:40 pm
MDW
- ICN
2 stops25h 50m
Multiple Airlines
Tue 4/288:05 pm
ICN
- MDW
2 stops23h 40m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$1,224
This EVA Air deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:30 am
ORD
- ICN
1 stop28h 15m
EVA Air
Mon 8/2412:00 pm
ICN
- ORD
1 stop23h 10m
EVA Air
Deal found 2/12![EVA Air logo]()
$1,435
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:09 pm
MDW
- ICN
2 stops38h 01m
Multiple Airlines
Sat 4/259:30 pm
ICN
- MDW
1 stop29h 30m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$1,226
This Finnair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:30 pm
ORD
- ICN
1 stop23h 50m
Finnair
Tue 7/149:50 pm
ICN
- ORD
1 stop34h 00m
Finnair
Deal found 2/10![Finnair logo]()
$1,501
This Alaska Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:59 pm
ORD
- ICN
2 stops31h 31m
Alaska Airlines
Mon 8/247:35 pm
ICN
- ORD
2 stops31h 34m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$1,638
This China Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
MDW
- ICN
2 stops26h 40m
Multiple Airlines
Wed 4/2912:45 pm
ICN
- MDW
2 stops24h 35m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,266
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:55 pm
MLI
- ICN
2 stops24h 25m
United Airlines
Wed 4/2211:30 am
ICN
- MLI
2 stops19h 36m
United Airlines
Deal found 2/13![United Airlines logo]()
$1,547
This Finnair deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/119:30 pm
ORD
- ICN
1 stop23h 50m
Finnair
Thu 7/239:50 pm
ICN
- ORD
1 stop34h 00m
Finnair
Deal found 2/9![Finnair logo]()
$1,589
This China Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:40 pm
MDW
- ICN
2 stops25h 50m
Multiple Airlines
Wed 5/208:05 pm
ICN
- MDW
2 stops23h 45m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,270
This China Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:10 pm
MDW
- ICN
2 stops27h 20m
Multiple Airlines
Mon 4/208:05 pm
ICN
- MDW
2 stops23h 35m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,286
This China Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:24 pm
ORD
- ICN
2 stops26h 06m
Multiple Airlines
Sat 4/258:05 pm
ICN
- ORD
2 stops24h 35m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$1,390
This Philippine Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:00 am
ORD
- ICN
2 stops33h 10m
Multiple Airlines
Wed 3/188:35 pm
ICN
- ORD
2 stops35h 11m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,448
This China Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:10 pm
MDW
- ICN
2 stops30h 10m
Multiple Airlines
Wed 3/1112:30 pm
ICN
- MDW
2 stops21h 55m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$1,456
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:22 pm
MLI
- ICN
2 stops29h 53m
United Airlines
Fri 3/205:00 pm
ICN
- MLI
2 stops41h 48m
United Airlines
Deal found 2/13![United Airlines logo]()
$2,809
Last-minute flights from Illinois to Incheon IntlDiscover last-minute flight deals from Illinois to Incheon Intl. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Incheon Intl. Data last updated February 13, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/137:00 am
STL
- ICN
1 stop20h 35m
Multiple Airlines
Fri 2/208:35 pm
ICN
- STL
1 stop18h 24m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$817
This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:47 pm
STL
- ICN
1 stop36h 48m
Multiple Airlines
Fri 2/208:35 pm
ICN
- STL
1 stop18h 24m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$824
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/168:17 am
STL
- ICN
2 stops30h 23m
United Airlines
Fri 2/206:00 pm
ICN
- STL
2 stops17h 26m
United Airlines
Deal found 2/9![United Airlines logo]()
$821
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Mon 4/276:00 pm
ICN
- ORD
2 stops26h 47m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$731
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Thu 4/307:25 am
ICN
- ORD
2 stops36h 25m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$787
This FlightHub deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:20 pm
ORD
- ICN
1 stop31h 00m
Turkish Airlines
Tue 3/1012:10 am
ICN
- ORD
1 stop33h 15m
Turkish Airlines
Deal found 2/10![Turkish Airlines logo]()
$818
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Thu 3/59:20 pm
ICN
- ORD
2 stops23h 48m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$827
This BusinessClass deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
STL
- ICN
1 stop20h 35m
Multiple Airlines
Mon 3/98:35 pm
ICN
- STL
1 stop31h 16m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$739
This FlightHub deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:50 am
ORD
- ICN
1 stop30h 15m
Turkish Airlines
Tue 3/1012:10 am
ICN
- ORD
1 stop24h 55m
Turkish Airlines
Deal found 2/11![Turkish Airlines logo]()
$828
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Sun 3/158:35 pm
ICN
- ORD
2 stops35h 54m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$813
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:51 pm
ORD
- ICN
1 stop20h 49m
Multiple Airlines
Mon 3/166:55 pm
ICN
- ORD
2 stops25h 13m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$807
This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/227:00 am
STL
- ICN
1 stop21h 35m
Multiple Airlines
Thu 4/28:35 pm
ICN
- STL
1 stop17h 24m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$767
One-way flights from Illinois to Incheon IntlSearch for one-way flight options from Illinois to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
Search for one-way flight options from Illinois to Incheon Intl. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/73:50 pm
STL
- ICN
1 stop36h 45m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:16 pm
ORD
- ICN
2 stops42h 24m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/224:47 pm
ORD
- ICN
1 stop22h 28m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:30 am
MDW
- ICN
1 stop31h 45m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:30 am
MDW
- ICN
1 stop31h 45m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:31 am
ORD
- ICN
1 stop32h 44m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:09 pm
ORD
- ICN
1 stop22h 06m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/234:49 pm
STL
- ICN
2 stops32h 26m
United Airlines
Deal found 2/9![United Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:51 pm
ORD
- ICN
1 stop19h 49m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:25 pm
MDW
- ICN
2 stops53h 55m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$381
Find flight deals from Illinois to Incheon Intl
Keep the following information in mind while searching for Illinois to Incheon Intl flight deals. Data was last updated February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $731 (Kiwi.com) |
One-way from | $327 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $1,015 |
Good round-trip deal | $814 or less |
Good one-way deal | $470 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Incheon Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Illinois to Incheon Intl Airport that are best for you.
Fly from
Illinois
Fly to
Incheon Intl
Route
Depart
Return
Price
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sun 4/12
6:11 pm-3:45 pm
1 stop31h 34m
Incheon Intl
Thu 4/30
5:50 pm-8:24 am
2 stops28h 34m
$877
ChicagoIncheon
ORD - ICN
ORDICN
Chicago O'Hare Intl
Tue 3/3
8:20 pm-6:20 pm
1 stop31h 00m
Incheon Intl
Mon 3/9
12:10 am-11:05 am
1 stop24h 55m
$884
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Thu 4/16
8:54 am-4:20 am
2 stops29h 26m
Incheon Intl
Wed 4/22
11:30 am-4:56 pm
2 stops19h 26m
$915
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sat 4/25
6:00 am-2:10 pm
1 stop18h 10m
Incheon Intl
Wed 5/6
10:15 am-8:42 pm
1 stop24h 27m
$917
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Mon 4/13
4:05 pm-4:05 pm
2 stops34h 00m
Incheon Intl
Thu 4/23
5:45 pm-3:24 pm
2 stops35h 39m
$917
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Thu 4/16
6:19 am-5:20 pm
1 stop21h 01m
Incheon Intl
Wed 4/22
7:20 pm-12:25 am
1 stop19h 05m
$917
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Thu 3/5
6:51 am-4:15 pm
1 stop18h 24m
Incheon Intl
Tue 3/10
11:45 am-10:25 pm
1 stop24h 40m
$917
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sun 4/19
1:02 pm-4:00 am
1 stop24h 58m
Incheon Intl
Sun 4/26
7:20 pm-12:25 am
1 stop19h 05m
$917
St. LouisIncheon
STL - ICN
STLICN
Lambert-St Louis
Sat 4/11
10:07 am-4:00 am
1 stop27h 53m
Incheon Intl
Fri 4/17
7:20 pm-12:25 am
1 stop19h 05m
$917
ChampaignIncheon
CMI - ICN
CMIICN
Champaign University-Willard
Mon 3/2
2:54 pm-4:45 pm
1 stop34h 51m
Incheon Intl
Wed 3/11
5:55 pm-8:54 pm
1 stop16h 59m
$974
Showing 1-10 of 60 results
Best time to book a flight from Illinois to Incheon Intl
Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Illinois with our price prediction graph.
ORD-ICN
STL-ICN
MDW-ICN
CMI-ICN
MLI-ICN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Incheon Intl Airport
USIL-ICN
ORD-ICN
STL-ICN
MDW-ICN
CMI-ICN
What is the cheapest month to book a flight from Illinois to Incheon Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Illinois to Incheon Intl Airport (average of $197). Flying from Illinois to Incheon Intl Airport in December is currently the most expensive (average of $1,016). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to ICN?
Find hourly flight availability from Illinois to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 13, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Incheon Intl Airport as you normally would.
Weekly flight availability from Illinois to Incheon Intl Airport
Explore weekly flight availability from Illinois to Incheon Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 13, 2026.
The most flights from USIL to ICN are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Illinois to Incheon Intl Airport?
Related info for your journey
Find useful and relevant information for your journey from Illinois to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Incheon Intl Airport?
Book flights to Incheon Intl Airport if you plan to visit one of these locationsSuwon
Seongnam
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to Incheon Intl
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Complete your trip
Complete your trip to Incheon Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Incheon Intl by cabin class
Find flights from Illinois to Incheon Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Incheon Intl
Explore flights to Incheon Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 13, 2026.
Illinois and Incheon Intl flights
Browse other Illinois and Incheon Intl flight options. Last updated on February 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Incheon Intl flights
Consider these flights traveling from Illinois to Incheon Intl.
Top 9 airlines flying from Illinois to Incheon Intl
Discover the top 9 airlines that operate flights from Illinois to Incheon Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$194 | Average$1,884 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$287 | Average$1,995 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$639 | Average$918 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$877 | Average$1,134 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$915 | Average$1,690 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,003 | Average$1,258 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,098 | Average$1,325 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,259 | Average$1,411 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$1,559 | Average$1,912 | FlexibilityNo cancel fee | On-time81% |