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$1,542+ Cheap flights from Champaign (CMI) to Seoul (SEL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SEL
Jul 7 — Jul 141
Tue 7/7
Tue 7/14
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 June 7, 2026.

This oojo deal was found by Cheapflights users on 6/6. 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.
Tue 8/411:37 am
CMI
-
ICN
2 stops41h 28m
Cathay Pacific
Sat 8/153:10 pm
ICN
-
CMI
2 stops44h 50m
Cathay Pacific
Deal found 6/6$1,542
This United Airlines deal was found by Cheapflights users on 6/3. 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 12/48:43 pm
CMI
-
ICN
2 stops28h 42m
United Airlines
Wed 12/306:30 pm
ICN
-
CMI
2 stops29h 24m
United Airlines
Deal found 6/3$1,711
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/157:24 am
CMI
-
ICN
1 stop18h 21m
American Airlines
Wed 7/295:50 pm
ICN
-
CMI
2 stops31h 17m
American Airlines
Deal found 6/4$1,777
This oojo deal was found by Cheapflights users on 6/4. 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.
Wed 7/152:46 pm
CMI
-
ICN
2 stops33h 19m
Cathay Pacific
Tue 7/281:55 am
ICN
-
CMI
2 stops34h 04m
Cathay Pacific
Deal found 6/4$1,782
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 8/57:00 am
CMI
-
ICN
1 stop18h 45m
American Airlines
Sat 8/155:50 pm
ICN
-
CMI
2 stops31h 21m
American Airlines
Deal found 6/4$1,787
This American Airlines deal was found by Cheapflights users on 6/6. 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 8/42:46 pm
CMI
-
ICN
1 stop34h 59m
American Airlines
Sat 8/155:50 pm
ICN
-
CMI
2 stops31h 21m
American Airlines
Deal found 6/6$1,788
This Qatar Airways deal was found by Cheapflights users on 6/4. 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.
Wed 9/92:41 pm
CMI
-
ICN
2 stops29h 49m
Qatar Airways
Sat 9/121:20 am
ICN
-
CMI
2 stops34h 45m
Qatar Airways
Deal found 6/4$1,918
This Finnair deal was found by Cheapflights users on 6/6. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/162:46 pm
CMI
-
ICN
2 stops54h 34m
Multiple Airlines
Sat 6/279:50 pm
ICN
-
CMI
2 stops38h 11m
Multiple Airlines
Deal found 6/6$2,024

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 June 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,542
(oojo)
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.
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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 June 7, 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

Fri 12/4

8:43 pm-4:25 pm

2 stops28h 42m

Incheon Intl

Wed 12/30

6:30 pm-8:54 am

2 stops29h 24m

$1,711
Quickest round-trip

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 8/5

7:00 am-3:45 pm

1 stop18h 45m

Incheon Intl

Sat 8/15

5:50 pm-11:11 am

2 stops31h 21m

$1,787

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Tue 8/4

2:46 pm-3:45 pm

1 stop34h 59m

Incheon Intl

Sat 8/15

5:50 pm-11:11 am

2 stops31h 21m

$1,788

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 9/9

2:41 pm-5:05 pm

2 stops36h 24m

Incheon Intl

Sat 9/12

1:20 am-10:05 pm

2 stops34h 45m

$1,918

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Fri 12/4

6:00 am-4:25 pm

1 stop19h 25m

Incheon Intl

Wed 12/30

6:35 pm-11:03 am

2 stops31h 28m

$2,272

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 8/5

2:47 pm-5:05 pm

2 stops36h 18m

Incheon Intl

Sat 8/15

3:10 pm-2:15 pm

3 stops37h 05m

$2,338

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Tue 8/4

2:46 pm-10:30 am

2 stops53h 44m

Incheon Intl

Sat 8/15

8:05 pm-10:00 pm

3 stops39h 55m

$2,352

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Fri 12/4

3:16 pm-5:15 pm

2 stops58h 59m

Incheon Intl

Wed 12/30

11:05 am-2:27 pm

3 stops42h 22m

$3,332

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

Sorted by cheapest first
  • 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.

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 0 different airlines.

  • How long is the flight from Champaign to Seoul?

    There are many flights that can get you from Champaign to Seoul in 18h 21m. Fly via Cathay Pacific or American Airlines 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

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