$393+ Cheap flights from Incheon Intl (ICN) to Illinois
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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — ORD
Mar 15 — Mar 221
1 adult, Economy
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Cheapest flights from Incheon Intl to IllinoisExplore the most affordable flight options available from Incheon Intl to Illinois. 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 Incheon Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 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.
Thu 2/197:15 pm
ICN
- ORD
1 stop17h 10m
American Airlines
Wed 3/45:00 am
ORD
- ICN
1 stop20h 45m
American Airlines
Deal found 2/11![American Airlines logo]()
$761
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.
Mon 2/237:15 pm
ICN
- STL
1 stop30h 46m
American Airlines
Sun 3/16:57 pm
STL
- ICN
2 stops30h 48m
American Airlines
Deal found 2/11![American Airlines logo]()
$764
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 2/267:15 pm
ICN
- ORD
1 stop27h 09m
American Airlines
Mon 3/96:10 am
ORD
- ICN
1 stop19h 45m
American Airlines
Deal found 2/10![American Airlines logo]()
$766
This WhyPayMore 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:35 pm
ICN
- ORD
1 stop30h 26m
Hawaiian Airlines
Sat 2/285:29 pm
ORD
- ICN
1 stop34h 06m
Hawaiian Airlines
Deal found 2/12![Hawaiian Airlines logo]()
$767
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 2/266:00 pm
ICN
- ORD
1 stop17h 30m
United Airlines
Tue 3/1012:50 pm
ORD
- ICN
2 stops25h 50m
United Airlines
Deal found 2/11![United Airlines logo]()
$779
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:35 pm
ICN
- ORD
1 stop18h 21m
Hawaiian Airlines
Fri 2/277:00 am
ORD
- ICN
1 stop20h 35m
Hawaiian Airlines
Deal found 2/12![Hawaiian Airlines logo]()
$780
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:00 pm
ICN
- ORD
2 stops21h 26m
United Airlines
Thu 2/266:25 am
ORD
- ICN
1 stop18h 50m
United Airlines
Deal found 2/12![United Airlines logo]()
$784
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 2/2612:45 pm
ICN
- ORD
1 stop22h 10m
United Airlines
Wed 3/116:17 am
ORD
- ICN
1 stop18h 58m
United Airlines
Deal found 2/11![United Airlines logo]()
$786
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.
Sun 2/228:35 pm
ICN
- ORD
2 stops33h 23m
Multiple Airlines
Fri 2/277:00 am
ORD
- ICN
1 stop20h 35m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$792
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.
Wed 3/46:55 pm
ICN
- ORD
2 stops30h 56m
Multiple Airlines
Wed 3/116:51 pm
ORD
- ICN
1 stop20h 49m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$801
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 2/198:35 pm
ICN
- ORD
2 stops33h 23m
Multiple Airlines
Thu 2/268:20 am
ORD
- ICN
2 stops43h 15m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$802
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:15 pm
ICN
- STL
1 stop36h 58m
American Airlines
Mon 2/232:31 pm
STL
- ICN
2 stops35h 14m
American Airlines
Deal found 2/9![American Airlines logo]()
$851
Best flights from Incheon Intl to IllinoisDiscover carefully curated flight deals from Incheon Intl to Illinois 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 Incheon Intl to Illinois 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.
Mon 2/237:15 pm
ICN
- STL
1 stop30h 46m
American Airlines
Sun 3/16:50 pm
STL
- ICN
1 stop30h 55m
American Airlines
Deal found 2/11![American Airlines logo]()
$764
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 2/266:00 pm
ICN
- ORD
1 stop17h 30m
United Airlines
Mon 3/26:25 am
ORD
- ICN
1 stop32h 15m
United Airlines
Deal found 2/11![United Airlines logo]()
$784
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.
Wed 3/46:55 pm
ICN
- ORD
2 stops30h 56m
Multiple Airlines
Wed 3/116:51 pm
ORD
- ICN
1 stop20h 49m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$801
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:45 pm
ICN
- STL
2 stops32h 21m
Air Canada
Mon 8/315:20 am
STL
- ICN
2 stops20h 45m
Air Canada
Deal found 2/11![Air Canada logo]()
$864
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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.
Fri 5/17:35 pm
ICN
- ORD
2 stops31h 38m
Alaska Airlines
Wed 5/63:52 pm
ORD
- ICN
2 stops35h 38m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$874
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.
Tue 4/287:40 pm
ICN
- MDW
1 stop27h 11m
Delta
Tue 9/296:45 pm
MDW
- ICN
1 stop32h 35m
Delta
Deal found 2/10![Delta logo]()
$1,141
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:15 am
ICN
- CMI
2 stops32h 13m
Qatar Airways
Sun 4/262:13 pm
CMI
- ICN
2 stops37h 52m
Qatar Airways
Deal found 2/9![Qatar Airways logo]()
$1,699
This Asiana 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:00 pm
ICN
- ORD
1 stop15h 45m
Multiple Airlines
Tue 6/306:53 pm
ORD
- ICN
1 stop20h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$904
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.
Wed 5/67:35 pm
ICN
- ORD
1 stop18h 24m
Alaska Airlines
Sun 6/146:20 am
ORD
- ICN
1 stop21h 10m
Alaska Airlines
Deal found 2/11![Alaska Airlines logo]()
$930
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:45 pm
ICN
- STL
2 stops41h 09m
Air Canada
Sun 4/194:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Deal found 2/11![Air Canada logo]()
$945
This Asiana 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:25 am
ICN
- ORD
1 stop23h 16m
Multiple Airlines
Tue 9/295:55 pm
ORD
- ICN
1 stop21h 20m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$905
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:50 pm
ICN
- STL
1 stop17h 47m
American Airlines
Mon 8/315:15 am
STL
- ICN
1 stop20h 30m
American Airlines
Deal found 2/13![American Airlines logo]()
$1,044
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:45 pm
ICN
- STL
2 stops41h 09m
Air Canada
Fri 4/244:05 pm
STL
- ICN
2 stops34h 00m
Air Canada
Deal found 2/11![Air Canada logo]()
$976
This Asiana 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:00 pm
ICN
- ORD
1 stop16h 59m
Multiple Airlines
Tue 6/306:53 pm
ORD
- ICN
1 stop20h 22m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$906
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:40 pm
ICN
- MDW
1 stop27h 11m
Delta
Mon 9/286:45 pm
MDW
- ICN
1 stop32h 35m
Delta
Deal found 2/13![Delta logo]()
$1,157
This Asiana Airlines deal was found by Cheapflights users on 2/8. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:00 pm
ICN
- ORD
1 stop16h 58m
Multiple Airlines
Wed 5/66:21 pm
ORD
- ICN
1 stop21h 44m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$906
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.
Tue 4/145:45 pm
ICN
- STL
2 stops41h 09m
Air Canada
Tue 4/218:54 am
STL
- ICN
2 stops41h 11m
Air Canada
Deal found 2/10![Air Canada logo]()
$1,037
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 3/268:35 pm
ICN
- ORD
1 stop17h 24m
Multiple Airlines
Thu 6/46:00 am
ORD
- ICN
1 stop21h 30m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$928
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/75:45 pm
ICN
- STL
2 stops35h 39m
Air Canada
Thu 5/71:00 pm
STL
- ICN
2 stops37h 05m
Air Canada
Deal found 2/11![Air Canada logo]()
$1,059
This Asiana Airlines deal was found by Cheapflights users on 2/8. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/299:05 pm
ICN
- ORD
1 stop26h 55m
Multiple Airlines
Wed 7/86:10 pm
ORD
- ICN
1 stop21h 55m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$955
This Asiana 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:00 pm
ICN
- ORD
1 stop16h 59m
Multiple Airlines
Fri 5/225:47 pm
ORD
- ICN
1 stop21h 28m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$955
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.
Fri 3/275:55 pm
ICN
- CMI
2 stops29h 28m
American Airlines
Fri 4/33:47 pm
CMI
- ICN
2 stops33h 58m
American Airlines
Deal found 2/10![American Airlines logo]()
$1,541
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.
Wed 4/2212:45 pm
ICN
- MDW
2 stops24h 35m
Multiple Airlines
Tue 9/298:30 pm
MDW
- ICN
2 stops24h 45m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,010
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 5/276:00 pm
ICN
- STL
2 stops37h 06m
Multiple Airlines
Mon 8/316:41 am
STL
- ICN
1 stop20h 49m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,018
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:50 pm
ICN
- CMI
1 stop17h 07m
American Airlines
Sun 4/263:01 pm
CMI
- ICN
1 stop34h 44m
American Airlines
Deal found 2/9![American Airlines logo]()
$1,902
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.
Mon 4/138:35 pm
ICN
- STL
1 stop17h 24m
Multiple Airlines
Mon 4/207:00 am
STL
- ICN
1 stop21h 35m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,043
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.
Mon 4/138:35 pm
ICN
- STL
1 stop17h 24m
Multiple Airlines
Sun 4/197:00 am
STL
- ICN
1 stop21h 35m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,046
This China 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:05 pm
ICN
- MDW
2 stops23h 40m
Multiple Airlines
Wed 5/66:50 pm
MDW
- ICN
2 stops26h 40m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,076
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.
Tue 4/288:05 pm
ICN
- MDW
2 stops23h 40m
Multiple Airlines
Tue 9/298:30 pm
MDW
- ICN
2 stops24h 45m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,114
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 6/18:05 pm
ICN
- MDW
2 stops23h 50m
Multiple Airlines
Wed 6/106:55 pm
MDW
- ICN
2 stops26h 35m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,156
Last-minute flights from Incheon Intl to IllinoisDiscover last-minute flight deals from Incheon Intl to Illinois. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from Incheon Intl to Illinois. Data last updated February 13, 2026 and is based on user searches.
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.
Thu 2/197:15 pm
ICN
- ORD
1 stop17h 10m
American Airlines
Wed 3/45:00 am
ORD
- ICN
1 stop20h 45m
American Airlines
Deal found 2/11![American Airlines logo]()
$761
This WhyPayMore 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:35 pm
ICN
- ORD
1 stop30h 26m
Hawaiian Airlines
Sat 2/285:29 pm
ORD
- ICN
1 stop34h 06m
Hawaiian Airlines
Deal found 2/12![Hawaiian Airlines logo]()
$767
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:35 pm
ICN
- ORD
1 stop18h 21m
Hawaiian Airlines
Fri 2/277:00 am
ORD
- ICN
1 stop20h 35m
Hawaiian Airlines
Deal found 2/12![Hawaiian Airlines logo]()
$780
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 2/198:35 pm
ICN
- ORD
2 stops33h 23m
Multiple Airlines
Thu 2/268:20 am
ORD
- ICN
2 stops43h 15m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$802
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:15 pm
ICN
- STL
1 stop36h 58m
American Airlines
Mon 2/232:31 pm
STL
- ICN
2 stops35h 14m
American Airlines
Deal found 2/9![American Airlines logo]()
$851
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:00 pm
ICN
- ORD
2 stops21h 26m
United Airlines
Thu 2/266:25 am
ORD
- ICN
1 stop18h 50m
United Airlines
Deal found 2/12![United Airlines logo]()
$784
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.
Sun 2/228:35 pm
ICN
- ORD
2 stops33h 23m
Multiple Airlines
Fri 2/277:00 am
ORD
- ICN
1 stop20h 35m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$792
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.
Mon 2/237:15 pm
ICN
- STL
1 stop30h 46m
American Airlines
Sun 3/16:57 pm
STL
- ICN
2 stops30h 48m
American Airlines
Deal found 2/11![American Airlines logo]()
$764
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 2/267:15 pm
ICN
- ORD
1 stop27h 09m
American Airlines
Mon 3/96:10 am
ORD
- ICN
1 stop19h 45m
American Airlines
Deal found 2/10![American Airlines logo]()
$766
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 2/266:00 pm
ICN
- ORD
1 stop17h 30m
United Airlines
Tue 3/1012:50 pm
ORD
- ICN
2 stops25h 50m
United Airlines
Deal found 2/11![United Airlines logo]()
$779
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 2/2612:45 pm
ICN
- ORD
1 stop22h 10m
United Airlines
Wed 3/116:17 am
ORD
- ICN
1 stop18h 58m
United Airlines
Deal found 2/11![United Airlines logo]()
$786
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.
Wed 3/46:55 pm
ICN
- ORD
2 stops30h 56m
Multiple Airlines
Wed 3/116:51 pm
ORD
- ICN
1 stop20h 49m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$801
One-way flights from Incheon Intl to IllinoisSearch for one-way flight options from Incheon Intl to Illinois. Find affordable one-way fares based on user searches. Data last updated February 13, 2026.
Search for one-way flight options from Incheon Intl to Illinois. 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 2/10. 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 5/46:00 pm
ICN
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$393
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.
Sun 3/89:20 pm
ICN
- ORD
2 stops46h 48m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$400
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.
Tue 3/37:15 am
ICN
- ORD
3 stops48h 48m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$421
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.
Tue 2/247:15 pm
ICN
- ORD
1 stop17h 10m
American Airlines
Deal found 2/11![American Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 2/8. 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 2/237:15 pm
ICN
- ORD
1 stop17h 10m
American Airlines
Deal found 2/8![American Airlines logo]()
$430
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.
Mon 3/95:55 pm
ICN
- ORD
1 stop18h 29m
American Airlines
Deal found 2/11![American Airlines logo]()
$431
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:15 pm
ICN
- ORD
1 stop18h 16m
American Airlines
Deal found 2/12![American Airlines logo]()
$432
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.
Wed 5/206:00 pm
ICN
- ORD
2 stops25h 50m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$433
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.
Wed 2/256:00 pm
ICN
- ORD
2 stops31h 49m
United Airlines
Deal found 2/11![United Airlines logo]()
$437
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:45 pm
ICN
- ORD
2 stops35h 49m
United Airlines
Deal found 2/12![United Airlines logo]()
$439
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.
Tue 6/1610:25 am
ICN
- STL
2 stops23h 40m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$462
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.
Sun 3/87:15 am
ICN
- MDW
3 stops54h 05m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$480
Find flight deals from Incheon Intl to Illinois
Keep the following information in mind while searching for Incheon Intl to Illinois flight deals. Data was last updated February 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $764 (American Airlines) |
One-way from | $393 (Kiwi.com) |
Popular in | August |
Cheapest in | November |
Average price | $1,206 |
Good round-trip deal | $1,389 or less |
Good one-way deal | $1,134 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Incheon Intl to Illinois 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 Incheon Intl Airport to Illinois that are best for you.
Fly from
Incheon Intl
Fly to
Illinois
Route
Depart
Return
Price
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Mon 2/23
7:15 pm-11:01 am
1 stop30h 46m
Lambert-St Louis
Sun 3/1
6:50 pm-4:45 pm
1 stop30h 55m
$764
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Thu 2/26
6:00 pm-8:30 pm
1 stop17h 30m
Chicago O'Hare Intl
Mon 3/2
6:25 am-5:40 am
1 stop32h 15m
$784
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Wed 3/4
6:55 pm-10:51 am
2 stops30h 56m
Chicago O'Hare Intl
Wed 3/11
6:51 pm-5:40 am
1 stop20h 49m
$801
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Wed 5/27
5:45 pm-12:06 pm
2 stops32h 21m
Lambert-St Louis
Mon 8/31
5:20 am-4:05 pm
2 stops20h 45m
$864
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Fri 5/1
7:35 pm-1:13 pm
2 stops31h 38m
Chicago O'Hare Intl
Wed 5/6
3:52 pm-5:30 pm
2 stops35h 38m
$874
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Tue 6/2
9:00 pm-10:45 pm
1 stop15h 45m
Chicago O'Hare Intl
Tue 6/30
6:53 pm-5:15 am
1 stop20h 22m
$904
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Wed 4/22
8:25 am-5:41 pm
1 stop23h 16m
Chicago O'Hare Intl
Tue 9/29
5:55 pm-5:15 am
1 stop21h 20m
$905
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Thu 5/28
9:00 pm-11:59 pm
1 stop16h 59m
Chicago O'Hare Intl
Tue 6/30
6:53 pm-5:15 am
1 stop20h 22m
$906
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Fri 5/1
9:00 pm-11:58 pm
1 stop16h 58m
Chicago O'Hare Intl
Wed 5/6
6:21 pm-6:05 am
1 stop21h 44m
$906
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Thu 3/26
8:35 pm-11:59 pm
1 stop17h 24m
Chicago O'Hare Intl
Thu 6/4
6:00 am-5:30 pm
1 stop21h 30m
$928
Showing 1-10 of 59 results
Best time to book a flight from Incheon Intl to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Incheon Intl with our price prediction graph.
ICN-ORD
ICN-MLI
ICN-STL
ICN-MDW
ICN-CMI
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 Incheon Intl Airport to Illinois
ICN-USIL
ICN-ORD
ICN-MLI
ICN-STL
ICN-MDW
What is the cheapest month to book a flight from Incheon Intl Airport to Illinois?
Currently, August is the cheapest month in which you can book a flight from Incheon Intl Airport to Illinois (average of $204). Flying from Incheon Intl Airport to Illinois in July is currently the most expensive (average of $977). 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 ICN to IL?
Find hourly flight availability from Incheon Intl to Illinois. 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.
When flying from Incheon Intl Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Incheon Intl Airport to Illinois
Explore weekly flight availability from Incheon Intl to Illinois. 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 ICN to USIL 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).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated February 13, 2026.
See what other customers who have flown with Korean Air, Alaska Airlines, and Delta from Incheon Intl Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.5
Entertainment
8.2
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Boarding
8.5
Entertainment
8.2
Overall
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentJacqueline,Aug 2025
ICN - SEA
Related info for your journey
Find useful and relevant information for your journey from Incheon Intl to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Incheon Intl and Illinois flights
Browse other Incheon Intl and Illinois flight options. Last updated on February 13, 2026.
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Incheon Intl to Illinois flights
Consider these flights traveling from Incheon Intl to Illinois.
Top 6 airlines flying from Incheon Intl to Illinois
Discover the top 6 airlines that operate flights from Incheon Intl to Illinois. 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$197 | Average$590 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$229 | Average$1,356 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$558 | Average$1,137 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$586 | Average$663 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$687 | Average$1,385 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$730 | Average$1,053 | FlexibilityNo cancel fee | On-time67% |