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$1,269+ Cheap flights from Champaign (CMI) to Seoul (SEL)

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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SEL
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
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Cheap flight deals from Champaign to Seoul

Cheapest flights from Champaign to Seoul
Explore the most affordable flight options available from Champaign to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 18, 2026.

This United Airlines deal was found by Cheapflights users on 4/15. 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.
Sun 9/68:43 pm
CMI
-
ICN
2 stops28h 37m
United Airlines
Thu 9/1011:30 am
ICN
-
CMI
2 stops19h 58m
United Airlines
Deal found 4/15$1,571
This Qatar Airways deal was found by Cheapflights users on 4/13. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/62:47 pm
CMI
-
ICN
2 stops36h 18m
Qatar Airways
Wed 9/91:20 am
ICN
-
CMI
2 stops34h 44m
Qatar Airways
Deal found 4/13$1,926
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 6/19:49 am
CMI
-
ICN
2 stops39h 11m
United Airlines
Wed 7/1511:30 am
ICN
-
CMI
2 stops35h 24m
United Airlines
Deal found 4/17$2,010
This Gotogate deal was found by Cheapflights users on 4/16. 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.
Mon 4/203:09 pm
CMI
-
ICN
2 stops36h 21m
Qatar Airways
Mon 5/411:45 pm
ICN
-
CMI
2 stops35h 22m
Qatar Airways
Deal found 4/16$2,021
This United Airlines deal was found by Cheapflights users on 4/17. 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 6/51:32 pm
CMI
-
ICN
2 stops24h 48m
United Airlines
Wed 7/1511:30 am
ICN
-
CMI
2 stops35h 24m
United Airlines
Deal found 4/17$2,060
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 6/19:49 am
CMI
-
ICN
2 stops28h 31m
United Airlines
Sun 7/1211:30 am
ICN
-
CMI
2 stops35h 24m
United Airlines
Deal found 4/17$2,078
This American Airlines deal was found by Cheapflights users on 4/17. 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 6/26:39 pm
CMI
-
ICN
2 stops31h 06m
American Airlines
Wed 7/155:50 pm
ICN
-
CMI
1 stop18h 09m
American Airlines
Deal found 4/17$2,080
This United Airlines deal was found by Cheapflights users on 4/17. 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 6/59:49 am
CMI
-
ICN
2 stops28h 31m
United Airlines
Fri 7/174:50 pm
ICN
-
CMI
2 stops30h 04m
United Airlines
Deal found 4/17$2,110
This United Airlines deal was found by Cheapflights users on 4/17. 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 6/51:32 pm
CMI
-
ICN
2 stops24h 48m
United Airlines
Sun 7/1211:30 am
ICN
-
CMI
2 stops44h 08m
United Airlines
Deal found 4/17$2,128
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 6/19:49 am
CMI
-
ICN
2 stops28h 31m
United Airlines
Thu 7/1611:30 am
ICN
-
CMI
2 stops20h 08m
United Airlines
Deal found 4/17$2,159

Find flight deals from Champaign to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Champaign (CMI) to Seoul (SEL). 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 April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,571
(United Airlines)

One-way from

$1,269
(American Airlines)
Provider with most accurate pricing for Champaign University-Willard-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Champaign University-Willard-Seoul (SEL) flights.
Search Deals
From Champaign University-Willard to Seoul (SEL)
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One-way flight from Champaign University-Willard to Seoul (SEL)
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Champaign to Seoul 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 April 18, 2026.
Use the filters below to find and compare flights from Champaign to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Sun 9/6

8:43 pm-3:20 pm

2 stops28h 37m

Incheon Intl

Thu 9/10

11:30 am-5:28 pm

2 stops19h 58m

$1,571

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Sun 9/6

2:47 pm-5:05 pm

2 stops36h 18m

Incheon Intl

Wed 9/9

1:20 am-10:04 pm

2 stops34h 44m

$1,926

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Mon 6/1

1:32 pm-3:00 pm

2 stops35h 28m

Incheon Intl

Mon 7/13

4:50 pm-8:54 am

2 stops30h 04m

$2,010

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 6/3

1:32 pm-4:20 am

2 stops24h 48m

Incheon Intl

Tue 7/14

4:50 pm-8:54 am

2 stops30h 04m

$2,010

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Fri 6/5

1:32 pm-4:20 am

2 stops24h 48m

Incheon Intl

Mon 7/13

4:50 pm-8:54 am

2 stops30h 04m

$2,060
Quickest round-trip

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Thu 5/14

7:02 am-3:45 pm

1 stop18h 43m

Incheon Intl

Sun 5/17

5:50 pm-8:39 pm

1 stop16h 49m

$2,166

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Mon 6/1

9:49 am-4:20 am

2 stops28h 31m

Incheon Intl

Sat 7/18

11:30 am-5:49 pm

2 stops20h 19m

$2,209

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Thu 5/14

2:17 pm-5:30 pm

2 stops37h 13m

Incheon Intl

Sun 5/17

8:00 am-8:39 pm

3 stops50h 39m

$2,907
Cheapest one-way
Quickest one-way

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Sun 5/17

3:01 pm-3:45 pm

1 stop34h 44m

$1,389

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Sun 5/10

2:17 pm-5:30 pm

2 stops37h 13m

$1,572

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 12 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Champaign-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Champaign-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Champaign-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Champaign-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Champaign-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Champaign to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Champaign 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.

Cheapflights Insights

Everything you need to know about your flight from Champaign to Seoul
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated April 18, 2026.
Peruse reviews from past customers who have flown with American Airlines from Champaign to Seoul to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,607 reviews

Boarding

7.5

Entertainment

6.9

Crew

7.9

Overall

7.1

Comfort

7.2

Food

6.4

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.
American Airlines
7.1
Good
11,607 reviews
American Airlines
7.1
Good
11,607 reviews

Boarding

7.5

Entertainment

6.9

Crew

7.9

Overall

7.1

Comfort

7.2

Food

6.4

Reviews

1 / 20
4.0
Okay

Elizabeth,Mar 2026

ORD - MIA

Staff was rude and flight attendants 2 out of 3 looked like they had just been thru a hurricane.

Related info for your journey

Find useful and relevant information for your journey from Champaign to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Champaign to Seoul?

    Located just 11.3 mi from the city center, Champaign University-Willard is the airport most travelers will use when flying to Seoul from Champaign. Booking flights from University-Willard (CMI) to Seoul should be relatively easy as there are 0 daily outbound flights to Seoul from 1 airline.

  • How long is the flight from Champaign to Seoul?

    There are many flights that can get you from Champaign to Seoul in 28h 37m. Fly via United Airlines or Qatar Airways to get the fastest option. The distance from Champaign to Seoul is about 6644 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Champaign to Seoul that include hotel bookings?

    Yes. In addition to deals on Champaign to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Champaign to Seoul?

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

  • Can I find deals for business class flights from Champaign to Seoul?

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Champaign to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Incheon Intl flights
St. Louis to Incheon Intl flights

Top airline flying from Champaign to Seoul

Discover the top airline that operate flights from Champaign to Seoul. 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 April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$915Average$1,939FlexibilityNo cancel feeOn-time71%

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