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$974+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SEL
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
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 February 27, 2026.

This American Airlines deal was found by Cheapflights users on 2/25. 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.
Mon 3/22:54 pm
CMI
-
ICN
1 stop34h 51m
American Airlines
Wed 3/115:55 pm
ICN
-
CMI
1 stop16h 59m
American Airlines
Deal found 2/25$974
This American Airlines deal was found by Cheapflights users on 2/24. 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.
Fri 4/106:58 pm
CMI
-
ICN
2 stops30h 47m
American Airlines
Fri 4/175:50 pm
ICN
-
CMI
1 stop34h 41m
American Airlines
Deal found 2/24$1,500
This American Airlines deal was found by Cheapflights users on 2/26. 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 3/116:46 am
CMI
-
ICN
1 stop19h 09m
American Airlines
Fri 3/275:55 pm
ICN
-
CMI
2 stops31h 36m
American Airlines
Deal found 2/26$1,559
This Qatar Airways deal was found by Cheapflights users on 2/23. 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 3/112:54 pm
CMI
-
ICN
2 stops29h 36m
Qatar Airways
Wed 3/1812:20 am
ICN
-
CMI
2 stops34h 34m
Qatar Airways
Deal found 2/23$1,993
This oojo deal was found by Cheapflights users on 2/23. 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 3/112:54 pm
CMI
-
ICN
2 stops36h 21m
Qatar Airways
Fri 3/276:30 pm
ICN
-
CMI
2 stops40h 24m
Qatar Airways
Deal found 2/23$2,001

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 February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,500
(American Airlines)

One-way from

$1,249
(Qatar Airways)
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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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 February 27, 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

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Fri 4/10

7:00 am-3:45 pm

1 stop18h 45m

Incheon Intl

Fri 4/17

5:50 pm-2:31 pm

1 stop34h 41m

$1,527

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 3/11

6:46 am-3:55 pm

1 stop19h 09m

Incheon Intl

Fri 3/27

5:55 pm-11:31 am

2 stops31h 36m

$1,559

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 3/11

2:54 pm-10:30 am

2 stops29h 36m

Incheon Intl

Wed 3/18

12:20 am-8:54 pm

2 stops34h 34m

$1,993

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 3/11

2:54 pm-5:15 pm

2 stops36h 21m

Incheon Intl

Fri 3/27

6:30 pm-8:54 pm

2 stops40h 24m

$2,001

ChampaignIncheon

CMI - ICN

CMIICN

Champaign University-Willard

Wed 7/29

2:47 pm-10:30 am

2 stops29h 43m

$1,249

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/25

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.

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 February 27, 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
7.2
Good
11,357 reviews

Boarding

7.5

Food

6.4

Entertainment

6.9

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,357 reviews
American Airlines
7.2
Good
11,357 reviews

Boarding

7.5

Food

6.4

Entertainment

6.9

Comfort

7.2

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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 18h 45m. Fly via American Airlines to get the fastest option. The distance from Champaign to Seoul is about 6644 mi.

  • 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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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 February 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$915Average$1,939FlexibilityNo cancel feeOn-time71%

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