$388+ Cheap flights from Seoul (SEL) 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Seoul to Illinois with Cheapflights
1. Tell us where you want to go
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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 Seoul to Illinois
Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Illinois (USIL). 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 November 21, 2024.
Find flight deals from Seoul to Illinois
Cheapest flights from Seoul to IllinoisExplore the most affordable flight options available from Seoul to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.
Explore the most affordable flight options available from Seoul to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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.
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This hutchgo.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 hutchgo.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Onlinetour deal was found by Cheapflights users on 11/19. 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 Onlinetour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 11/19. 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.
This WhyPayMore 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Seoul to Illinois within your budget
Customize your flight search to find flights from Seoul 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 2,629,791 searches. Data last updated November 21, 2024.
Fly from
Fly to
Route
Depart
Return
Price
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Sat 2/1
12:45 pm-11:01 am
3 stops37h 16m
Chicago O'Hare Intl
Sun 2/2
8:05 pm-4:15 pm
2 stops29h 10m
IncheonMoline
ICN - MLI
ICNMLI
Incheon Intl
Fri 1/31
6:50 pm-10:53 am
2 stops31h 03m
Moline Quad-City
Fri 2/28
6:32 pm-4:30 pm
2 stops30h 58m
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Tue 3/4
6:50 pm-11:47 pm
1 stop19h 57m
Chicago O'Hare Intl
Tue 3/25
5:00 am-3:55 pm
1 stop20h 55m
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Thu 3/6
4:55 pm-12:44 pm
1 stop34h 49m
Chicago O'Hare Intl
Sun 3/9
8:06 pm-3:25 pm
1 stop29h 19m
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Mon 2/10
6:00 pm-10:54 am
2 stops31h 54m
Lambert-St Louis
Fri 2/14
9:00 am-5:40 am
1 stop29h 40m
IncheonSt. Louis
ICN - STL
ICNSTL
Incheon Intl
Mon 2/10
4:55 pm-3:06 pm
2 stops37h 11m
Lambert-St Louis
Fri 2/14
3:50 pm-3:15 pm
2 stops32h 25m
SeoulChicago
GMP - ORD
GMPORD
Seoul Gimpo Intl
Wed 2/19
7:50 am-7:35 am
1 stop14h 45m
Chicago O'Hare Intl
Tue 2/25
10:35 am-10:20 pm
1 stop20h 45m
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Fri 12/6
6:20 pm-12:05 pm
2 stops32h 45m
Chicago O'Hare Intl
Mon 12/9
3:21 pm-4:45 pm
3 stops34h 24m
SeoulChicago
GMP - ORD
GMPORD
Seoul Gimpo Intl
Wed 2/19
7:50 pm-7:20 am
1 stop26h 30m
Chicago O'Hare Intl
Tue 2/25
4:25 pm-11:20 am
1 stop27h 55m
IncheonChicago
ICN - ORD
ICNORD
Incheon Intl
Sun 2/9
8:50 am-8:00 pm
1 stop26h 10m
Chicago O'Hare Intl
Sat 2/15
9:55 pm-10:40 am
2 stops45h 45m
Best time to book a flight from Seoul to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Seoul with our price prediction graph.
Travel insights for flights from Seoul to Illinois
Get recent, data-driven insights about flights from Seoul to Illinois including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Seoul to Illinois?
Currently, September is the cheapest month in which you can book a flight from Seoul to Illinois (average of $232). Flying from Seoul to Illinois in June is currently the most expensive (average of $308). 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 SEL to IL?
Find hourly flight availability from Seoul 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 November 21, 2024.
When flying from Seoul 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 Seoul to Illinois
Explore weekly flight availability from Seoul 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 November 21, 2024.
The most flights from SEL 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).
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
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 November 21, 2024.
See what other customers who have flown with United Airlines, Air Canada and Japan Airlines from Seoul to Illinois have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.
Boarding
Comfort
Crew
Entertainment
Overall
Food
Reviews
The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.
Related info for your journey
Find useful and relevant information for your journey from Seoul 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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Alternative routes for Seoul to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Seoul to Illinois
Discover the top 4 airlines that operate flights from Seoul 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 2,629,791 searches. Data last updated November 21, 2024.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$697 | Average$992 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,089 | Average$1,481 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,194 | Average$1,504 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$1,314 | Average$1,652 | FlexibilityNo cancel fee | On-timeN/A |