Incheon Intl

$412+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ICN
nov. 26 — dic. 31
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Incheon Intl with Cheapflights

1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Incheon Intl (ICN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 21, 2024.

Find flight deals from Illinois to Incheon Intl

Cheapest flights from Illinois to Incheon Intl
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 noviembre 21, 2024.

This Delta deal was found by Cheapflights users on 11/21. 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.
jue. 12/56:00 amSTL - ICN
1 stop18h 30mDelta
jue. 12/125:50 pmICN - STL
1 stop20h 53mDelta
Deal found 11/21$903
This American Airlines deal was found by Cheapflights users on 11/21. 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.
sáb. 11/238:35 pmORD - ICN
1 stop29h 10mAmerican Airlines
sáb. 12/76:50 pmICN - ORD
1 stop17h 33mAmerican Airlines
Deal found 11/21$953
This Kiwi.com deal was found by Cheapflights users on 11/20. 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.
jue. 12/58:56 pmORD - ICN
2 stops32h 34mMultiple Airlines
mié. 12/116:55 pmICN - ORD
1 stop37h 04mMultiple Airlines
Deal found 11/20$955
This Cathay Pacific deal was found by Cheapflights users on 11/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/12:40 pmORD - ICN
1 stop32h 15mCathay Pacific
jue. 12/53:00 pmICN - ORD
1 stop37h 00mCathay Pacific
Deal found 11/20$1,101
This Korean Air deal was found by Cheapflights users on 11/21. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/96:30 amSTL - ICN
1 stop19h 00mMultiple Airlines
vie. 12/277:30 pmICN - STL
1 stop17h 36mMultiple Airlines
Deal found 11/21$1,103
This Air Canada deal was found by Cheapflights users on 11/20. 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.
mié. 11/273:40 pmORD - ICN
1 stop34h 05mAir Canada
mar. 12/36:20 pmICN - ORD
1 stop35h 19mAir Canada
Deal found 11/20$1,104
This Kissandfly.com deal was found by Cheapflights users on 11/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/246:00 amORD - ICN
1 stop19h 45mBritish Airways
sáb. 12/76:50 pmICN - ORD
1 stop29h 40mBritish Airways
Deal found 11/20$1,105
This FlightHub deal was found by Cheapflights users on 11/20. 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.
lun. 12/211:55 amORD - ICN
1 stop30h 10mTurkish Airlines
dom. 12/812:10 amICN - ORD
1 stop25h 00mTurkish Airlines
Deal found 11/20$1,108
This oojo deal was found by Cheapflights users on 11/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2511:30 pmORD - ICN
1 stop20h 00mEVA Air
lun. 12/27:45 pmICN - ORD
1 stop38h 50mEVA Air
Deal found 11/20$1,147
This Air Canada deal was found by Cheapflights users on 11/21. 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.
lun. 12/93:50 pmSTL - ICN
2 stops33h 55mAir Canada
vie. 12/278:10 pmICN - STL
1 stop33h 56mAir Canada
Deal found 11/21$1,278
This oojo deal was found by Cheapflights users on 11/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/11:23 pmORD - ICN
2 stops33h 27mChina Southern
dom. 12/154:15 pmICN - ORD
3 stops52h 52mChina Southern
Deal found 11/20$1,380
This American Airlines deal was found by Cheapflights users on 11/21. 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.
jue. 12/55:35 pmSTL - ICN
2 stops32h 10mAmerican Airlines
jue. 12/126:50 pmICN - STL
2 stops29h 04mAmerican Airlines
Deal found 11/21$1,475

Find flights from Illinois to Incheon Intl within your budget

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 2,612,795 searches. Data last updated noviembre 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

dom. 2/2

3:50 pm-3:15 pm

2 stops32h 25m

Incheon Intl

sáb. 2/8

4:55 pm-3:06 pm

2 stops37h 11m

$864

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

dom. 4/6

3:15 pm-4:20 am

2 stops23h 05m

Incheon Intl

mié. 4/23

4:50 pm-12:27 am

1 stop21h 37m

$903

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

jue. 12/5

6:00 am-3:30 pm

1 stop18h 30m

Incheon Intl

jue. 12/12

7:30 pm-11:43 pm

2 stops19h 13m

$907

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

dom. 12/1

5:00 am-4:45 pm

1 stop20h 45m

Incheon Intl

vie. 12/6

6:50 pm-11:57 pm

1 stop20h 07m

$953

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

jue. 1/16

11:55 am-9:05 am

1 stop30h 10m

Incheon Intl

sáb. 1/25

12:10 am-10:10 am

1 stop25h 00m

$954

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

jue. 12/5

8:56 pm-8:30 pm

2 stops32h 34m

Incheon Intl

mié. 12/11

6:55 pm-4:59 pm

1 stop37h 04m

$955

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

jue. 1/9

8:30 pm-3:15 pm

2 stops27h 45m

Incheon Intl

mar. 1/21

4:55 pm-10:13 pm

2 stops20h 18m

$958

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

jue. 3/27

3:40 pm-9:15 pm

1 stop39h 35m

Incheon Intl

sáb. 4/5

1:35 pm-2:25 pm

1 stop38h 50m

$1,028

ChicagoIncheon

ORD - ICN

ORDICN

Chicago O'Hare Intl

dom. 5/4

12:30 am-11:00 am

1 stop20h 30m

Incheon Intl

mié. 5/14

12:00 pm-9:00 pm

1 stop23h 00m

$1,054

St. LouisIncheon

STL - ICN

STLICN

Lambert-St Louis

lun. 12/9

6:30 am-4:30 pm

1 stop19h 00m

Incheon Intl

vie. 12/27

7:30 pm-10:06 pm

1 stop17h 36m

$1,103

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 45 results
1
2
3
...
5

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.
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.

Travel insights for flights from Illinois to Incheon Intl

Get recent, data-driven insights about flights from Illinois to Incheon Intl including ideal travel times, pricing trends, and more.

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 $1,102). Flying from Illinois to Incheon Intl Airport in June is currently the most expensive (average of $1,708). 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 noviembre 21, 2024.

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 noviembre 21, 2024.

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).

Rainfall in Incheon Intl by month

Plan your trip to Incheon Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Incheon Intl Airport ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 0.8 in.

Temperature in Incheon Intl by month

Plan your trip to Incheon Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Incheon Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated noviembre 21, 2024.
To help decide which airline to fly from Illinois to Seoul, see what other customers have to say about Air Canada, Delta and American Airlines. 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.
8.5
Very good
1,024 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

8.5
Very good
1,024 reviews
8.5
Very good
1,024 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

8.4
Very good
1,308 reviews
8.5
Very good
1,024 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

8.4
Very good
833 reviews
8.5
Very good
1,024 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

8.3
Very good
476 reviews
8.5
Very good
1,024 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

8.0
Very good
8,755 reviews
8.5
Very good
1,024 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

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.
  • What are the cheapest airlines to fly from Illinois to Incheon Intl Airport one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $480. Turkish Airlines flights start at $511 while deals on American Airlines start at $528 one-way.

  • What are the most popular routes from Illinois to Incheon Intl Airport?

  • What are the most reliable airlines from Illinois to Incheon Intl Airport?

    Consider Delta (73%), Korean Air (56%) or Atlas Air (15%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Incheon Intl Airport.

  • What are the cheapest flights from Illinois to Incheon Intl Airport?

    Looking for the cheapest flight from Illinois to Incheon Intl Airport? While on average our users pay $2,354, our data indicates the cheapest price to be $562. The most popular route (Chicago O'Hare Intl - Incheon Intl), is priced around $771.

  • Can I find deals for flights from Illinois to Incheon Intl that include hotel bookings?

    Yes. In addition to deals on Illinois to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Incheon Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Incheon Intl.

  • Can I find deals for business class flights from Illinois to Incheon Intl?

    Yes. Cheapflights offers flight deals from Illinois to Incheon Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $1,102). Flying from Illinois to Incheon Intl Airport in June is currently the most expensive (average of $1,708). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Illinois to Incheon Intl

Discover the top 10 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 2,612,795 searches. Data last updated noviembre 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$845Average$1,365FlexibilityNo cancel feeOn-time71%
Cathay PacificCheapest$885Average$1,123FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$896Average$1,334FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$906Average$1,320FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$911Average$1,077FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$1,076Average$1,275FlexibilityNo cancel feeOn-time74%
LOTCheapest$1,216Average$1,489FlexibilityNo cancel feeOn-time81%
FinnairCheapest$1,334Average$1,565FlexibilityNo cancel feeOn-time76%
Asiana AirlinesCheapest$1,491Average$1,646FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,544Average$1,962FlexibilityNo cancel feeOn-time81%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.