$602 Cheap Flights from Seoul (ICN) to Champaign (CMI)

View $602 flight on Sat, Dec 13, 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard)

Cheap Flights from Seoul to Champaign (ICN-CMI)

Prices were available within the past 7 days and start at $602 for one-way flights and $2,015 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Fri, Dec 26 - Sun, Jan 4
ICN
Seoul
CMI
Champaign
$2,015 Roundtrip, found 1 day ago
$2,015
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, Dec 26 from Seoul to Champaign, returning Sun, Jan 4, priced at $2,015 found 1 day ago
Qatar Airways
Fri, Dec 26 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,047 Roundtrip, found 1 day ago
$2,047
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, Dec 26 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,047 found 1 day ago
Qatar Airways
Fri, Dec 26 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,057 Roundtrip, found 1 day ago
$2,057
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, Dec 26 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,057 found 1 day ago
Qatar Airways
Fri, Dec 26 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,059 Roundtrip, found 1 day ago
$2,059
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, Dec 26 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,059 found 1 day ago
Qatar Airways
Sat, Dec 27 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,138 Roundtrip, found 1 day ago
$2,138
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Sat, Dec 27 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,138 found 1 day ago
Qatar Airways
Sat, Dec 27 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,147 Roundtrip, found 1 day ago
$2,147
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Sat, Dec 27 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,147 found 1 day ago
Qatar Airways
Sat, Dec 27 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,149 Roundtrip, found 1 day ago
$2,149
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Sat, Dec 27 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,149 found 1 day ago
Qatar Airways
Fri, Dec 26 - Sun, Jan 4
ICN
Seoul
CMI
Champaign
$2,249 Roundtrip, found 1 day ago
$2,249
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, Dec 26 from Seoul to Champaign, returning Sun, Jan 4, priced at $2,249 found 1 day ago
Qatar Airways
Fri, Dec 26 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,262 Roundtrip, found 1 day ago
$2,262
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, Dec 26 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,262 found 1 day ago
Qatar Airways
Fri, Dec 26 - Tue, Jan 6
ICN
Seoul
CMI
Champaign
$2,265 Roundtrip, found 1 day ago
$2,265
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, Dec 26 from Seoul to Champaign, returning Tue, Jan 6, priced at $2,265 found 1 day ago

Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI) cost?
Lock in a cheap one-way flight from $602 or cheap return flight from $2,015 from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Planning your trip for December can help you save, as it's the cheapest month for flights between ICN and CMI. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from ICN to CMI. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Direct flights from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ICN to CMI?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Choose a flight from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI) last-minute?
Booking your plane ticket from ICN to CMI just before your getaway is typically more expensive. But if you're flexible with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book an ICN to CMI flight and hotel package?
Compared with arranging hotels and flights separately, booking an ICN to CMI flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the hassle out of travel planning. Just pick your flights and select from our extensive range of hotels, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to University Of Illinois Urbana-Champaign Williard Airport (CMI)?
Typically, you can modify or cancel your ICN to CMI flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like more information, visit our Customer Service portal.

Travel information

Origin airport
Incheon Intl.
Destination airport
University Of Illinois Urbana-Champaign Williard
Airlines serving
Qatar Airways
Roundtrip price
$2,015
Distance
6647 mi

Book with confidence

Seoul to Champaign Flights

The cheapest times to fly from Seoul to Champaign

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Champaign are during the month of December. You can find some of the cheapest flights from Seoul to Champaign with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Champaign

Sunday is one of the best days to book for cheap flights from Seoul to Champaign: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seoul to Champaign

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Champaign in 2025. You can also book with separate airlines for your outbound and return journeys, from $602 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Champaign flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Champaign airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seoul to Champaign Flights

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*Available to One Key members.