$387 Find Cheap Flights from Seoul Incheon Airport to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon Intl to Illinois departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Search hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon to Illinois.

Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago3 stops$666
Moline
Moline2 stops$708
Champaign
Champaign2 stops$2,200
St. Louis
St. Louis1 stop$833

Good to know

Low season

November

High season

July

Cheapest flight

$387
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Seoul Incheon Airport to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Seoul Incheon Airport to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seoul Incheon Airport to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul Incheon Airport to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Seoul Incheon Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seoul Incheon Airport to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Illinois with an airline and back to Seoul Incheon Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seoul Incheon Airport to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Illinois from Seoul Incheon Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 18% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Incheon Intl to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Incheon to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Incheon Intl to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1024 reviews
8.1Food
8.5Boarding
8.7Crew
8.2Entertainment
8.3Comfort
Airline reviews

I’ve always been impressed by the cleanliness of the toilets or, at least, its frequent monitoring, cleaning, and toiletry replacements. The in-flight service by flight attendants is superb.

10.0 ExcellentAnonymous, Nov 2024MNL - ICN
Read more Korean Air reviews

I’ve always been impressed by the cleanliness of the toilets or, at least, its frequent monitoring, cleaning, and toiletry replacements. The in-flight service by flight attendants is superb.

I won't hesitate to fly with Korean Air again and agian....if I can get a good deal.

The flight attendants seemed to be a little more grumpy this time. A350s could use more toilet stalls.

Excellent service, love the extra amenities (water bottles, blankets, etc.).

It was horrible. The flight crew was unfriendly and the food was absolutely horrible.

They had the same movie choice as my previous flight, not much of a choice, movies were not up to date, music was uninteresting. Other than sitting on the ground for 40 minutes after boarding the plane, with pilot telling us that they couldn't load the plane because of rain, (bullshit) We finally got into Bangkok of course 40 minutes late.

They could have had more up to date movies/better choice of music.

Will try never to fly Delta international again. Flight delayed and staff completely inept in dealing with it. Would not communicate, rude, completely disorganized. Once we reached Seoul the staff there had no idea what to do with us and led us around the airport from one pointless line to another. They were clearly not told how to manage the situation even though they had hours to make a plan. Never again.

They texted me my gate number and then they texted me again it’s now boarding but in different gate, and the gate was so far from the gate they texted me earlier. I have to run just to get to my flight. They always do that.

The crew and my luggage was still pretty good after a long flight. They take good care of the luggage.

Everything was good except food , food choices was very less. Washrooms were closed.overall good experience.

This flight was 16 hours and they made it very tolerable. Seats were comfortable and the staff very accommodating. I had plenty of inflight entertainment. Food was very good.

Service excellent would chose Singapore airlines as my first choice

The staff were amazing and very kind. The seats recline a little too far back and are up close when sitting behind.

My groups frequent flyer star allianceUnited airline miles was not accepted. The Singapore premium economy bag had to be requested, it was very lacking- no toothbrush. I paid more than double than economy but could only use the bathrooms sharing with economy which was hardly available and had to wait in line. Is the 2X $ worth it just for a larger seat???? It is questionable. Seats were not that comfortable. My husband’s seat had white stains on it- had to wipe it down. Our headphones did not have covers on it. Food- way too much.

On time, friendly staff and decent food. Would definitely recommend.

Didn't like much at all Nowhere near enough legroom, narrow seats. Aisles not wide enough for safe food trolley access and husband had his knee hit cos not enough leg room. Would take a lot to convince us to fly Singapore Airlines again which is a pity cos it was always our go-to airline

A 16 hour flight from Singapore to Los Angeles had only 2 meals. Please make it 3 meals.

Once again the meal served was delicious - we got chicken rice

Overall good experience, convenient Changi Airport, even the layover was long.

At the boarding gate, Jeju airline accepted "carry on" bags for checking in for free due to the "limited cabin space". This is because most passengers were carrying multiple bags that exceed the size and weight limit for carry on items. Rather than inspecting carry-on bags at the counter and requiring excess bags to be checked in for a fee, they allowed freeloading at the boarding gate to to the detriment of those who paid the fee for checked bags. This is totally unfair.

As posred earlier the crew was very accommodating & professional. Thank You Allen

All though you can not help it the kids was loud and unruly, The crew was very accommodating and professional. Thank You Allen.

No priority counter check in for families with young children.

The flight was delayed from GUM to ICN, there was no notification on how delayed the flight would be. Although we received notice, there was no specified time given. The flight was also very uncomfortable.

Cons: "Sold me a ticket then cancelled 15 minutes later due to not having updated information from the airline on bookings."

Captain smooth landing, Crew efficient and helpful. We saw Mt Fuji from the plane. Thanks.

On time and smooth flight from San Juan direct to Sint Maarten.

Just to be expected on a budget airline. Since all the flights were either late on the evening it would help to offer some food for purchase Since you tourists cannot buy decent food withoit local vaccination record in hong Kong this would really to help Using phone to submit electronic data is great but for the elderly this is a hassle

Flight cancelled without notidication, had to book an emergency replacement flight at the counter

Cons: "We should have been allowed to sit near our family (wives). There was empty row but they wanted to charge us to move up. Ridiculous!!"
Pros: "Absolutely nothing"
Cons: "The flight took forever to land. Pilot said prepare for descent and we stayed in the air for another forty minutes. The air smelled awful. One of the worst flights I’ve ever taken."
Pros: "I was able to purchase extended seat room for a reasonable price."
Cons: "No free drinks or entertainment or anything to help pass the flight time."

ok flight, but charged for everything. water, food, baggage. no free water available, I had to plead to give me water to take medicine.

Need to consider about zero entertainment services and lack of flight information!

I can't board the 2nd flight due to the last 1st flight. In the 1st flight check-in, I can't board due to the stupid problem of K-ETA visa. The booking system and the flight company should inform the customer a few days earlier. This is the worse experience in my life. I won't use KAYAK and the airline anymore. My friends were also surprised about this stupid situation. I won't use KAYAK and T'way anymore.

I can't board the flight due to the K-ETA problem. You should inform the customer clearly a few days before the flight. I can't cancel/change the flight now. This is the worst experience in my life. I also never hear about this kind of bad experience. I won't use the booking system and the flight company anymore.

Pros: "We received great assistance at the check-in counter and were helped out even though we arrived late. The ground crew was actually great."
Cons: "We only got water. Felt like a bus ride. Minimum comfort but fair for the price."

Book cheap flights from Incheon to Illinois

Recent round-trip flight deals

 
These are the cheapest round-trip flights from Incheon to Illinois found on KAYAK in the last 72 hours.
2/1Sat
3 stopsUnited Airlines
37h 16mICN-ORD
2/3Mon
2 stopsUnited Airlines
25h 55mORD-ICN
$666
2/1Sat
3 stopsUnited Airlines
37h 16mICN-ORD
2/6Thu
1 stopUnited Airlines
40h 20mORD-ICN
$667
1/31Fri
2 stopsAmerican Airlines
31h 03mICN-MLI
2/28Fri
2 stopsAmerican Airlines
30h 58mMLI-ICN
$708
3/4Tue
1 stopAmerican Airlines
19h 57mICN-ORD
3/25Tue
1 stopAmerican Airlines
20h 55mORD-ICN
$718
3/6Thu
1 stopAir Canada
34h 49mICN-ORD
3/9Sun
1 stopAir Canada
29h 19mORD-ICN
$789
1/31Fri
1 stopAir Canada
36h 44mICN-ORD
2/4Tue
1 stopAir Canada
35h 05mORD-ICN
$790
1/31Fri
1 stopDelta
30h 06mICN-MDW
2/5Wed
1 stopDelta
31h 02mMDW-ICN
$1,222
1/30Thu
1 stopDelta
17h 19mICN-MDW
1/31Fri
1 stopDelta
29h 31mMDW-ICN
$1,345
3/20Thu
1 stopKorean Air
16h 58mICN-MDW
3/24Mon
1 stopKorean Air
17h 00mMDW-ICN
$1,483
3/12Wed
1 stopKorean Air
16h 58mICN-MDW
5/14Wed
1 stopKorean Air
17h 50mMDW-ICN
$1,716

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Incheon to Illinois found on KAYAK in the last 72 hours.
12/11Wed
3 stops
48h 03mICN-ORD
$387
12/10Tue
2 stops
25h 13mICN-ORD
$388
12/24Tue
3 stops
29h 38mICN-ORD
$389
4/28Mon
2 stopsSingapore Airlines
32h 31mICN-ORD
$797
3/5Wed
1 stopAsiana Airlines
19h 15mICN-ORD
$806
1/14Tue
1 stopAsiana Airlines
18h 19mICN-ORD
$890
4/8Tue
1 stopDelta
31h 40mICN-MDW
$1,098
2/6Thu
1 stopKorean Air
18h 33mICN-MDW
$1,135
5/5Mon
1 stopKorean Air
15h 55mICN-MDW
$1,158
5/17Sat
1 stopDelta
31h 25mICN-MDW
$1,168

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Last minute flights from Incheon Intl to Illinois

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Incheon to Illinois that are departing in the next 10 days.
11/25Mon
multi-stopUnited Airlines
22h 02mICN-ORD
11/28Thu
multi-stopUnited Airlines
35h 15mORD-ICN
$565
11/25Mon
multi-stopUnited Airlines
22h 02mICN-ORD
11/28Thu
multi-stopUnited Airlines
35h 15mORD-ICN
$566
11/22Fri
multi-stopAir Canada
35h 19mICN-ORD
12/2Mon
multi-stopAir Canada
34h 05mORD-ICN
$789
11/22Fri
multi-stopAir Canada
35h 19mICN-ORD
11/25Mon
multi-stopAir Canada
34h 05mORD-ICN
$790
11/22Fri
multi-stopAsiana Airlines
18h 19mICN-ORD
11/23Sat
multi-stopAsiana Airlines
32h 40mORD-ICN
$1,204
11/22Fri
multi-stopAsiana Airlines
18h 19mICN-ORD
11/23Sat
multi-stopAsiana Airlines
32h 40mORD-ICN
$1,207
11/22Fri
nonstopKorean Air
12h 50mICN-ORD
4/15Tue
nonstopKorean Air
14h 30mORD-ICN
$1,297
11/22Fri
nonstopKorean Air
12h 50mICN-ORD
3/10Mon
nonstopKorean Air
14h 50mORD-ICN
$1,300
11/24Sun
nonstopDelta
12h 50mICN-ORD
11/29Fri
multi-stopDelta
32h 25mORD-ICN
$1,401
11/24Sun
multi-stopDelta
28h 21mICN-MDW
11/29Fri
multi-stopDelta
29h 13mMDW-ICN
$1,461

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Everything you need to know for your flight from Incheon Intl to Illinois

Information on your arrival and departure airports

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