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$784+ Cheap flights from Busan (PUS) 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ORD
May 3 — May 101
Sat 5/3
Sat 5/10
1 adult, Economy
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Cheap flight deals from Busan to Illinois

Keep the following information in mind while searching for Busan to Illinois flight deals. Data was last updated April 28, 2025.

Round-trip from

$1,294
(FlightHub)

One-way from

$784
(Kiwi.com)
From Busan Gimhae to Illinois
Search Deals
One-way flight from Busan Gimhae to Illinois
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Find flight deals from Busan to Illinois

Cheapest flights from Busan to Illinois
Explore the most affordable flight options available from Busan to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2025.

This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:20 amPUS - ORD
2 stops25h 35mAsiana Airlines
Thu 5/296:25 pmORD - PUS
2 stops33h 20mAsiana Airlines
Deal found 4/28$1,294
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:50 amPUS - ORD
2 stops52h 49mMultiple Airlines
Thu 7/174:00 pmORD - PUS
1 stop25h 00mMultiple Airlines
Deal found 4/27$1,316
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/910:40 amPUS - ORD
2 stops24h 57mDelta
Thu 6/197:09 amORD - PUS
2 stops22h 26mDelta
Deal found 4/28$1,429
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/114:30 pmPUS - MDW
2 stops30h 14mDelta
Wed 6/186:00 amMDW - PUS
2 stops23h 35mDelta
Deal found 4/27$1,443
This Gotogate deal was found by Cheapflights users on 4/27. 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.
Tue 5/138:05 amPUS - ORD
1 stop15h 35mKorean Air
Thu 7/1712:30 pmORD - PUS
1 stop18h 15mKorean Air
Deal found 4/27$1,484
This Gotogate deal was found by Cheapflights users on 4/27. 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.
Wed 6/117:45 amPUS - ORD
1 stop20h 40mCathay Pacific
Wed 6/184:00 pmORD - PUS
1 stop25h 00mCathay Pacific
Deal found 4/27$1,529
This Trip.com deal was found by Cheapflights users on 4/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1111:00 amPUS - STL
2 stops22h 58mMultiple Airlines
Wed 6/187:30 amSTL - PUS
2 stops43h 05mMultiple Airlines
Deal found 4/27$1,531
This Air France deal was found by Cheapflights users on 4/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/58:45 amPUS - ORD
2 stops43h 25mKLM
Sun 6/84:20 pmORD - PUS
2 stops37h 15mKLM
Deal found 4/27$1,562
This Korean Air deal was found by Cheapflights users on 4/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/710:40 amPUS - MDW
2 stops39h 52mKorean Air
Fri 9/129:20 amMDW - PUS
2 stops21h 25mKorean Air
Deal found 4/27$1,738
This Japan Airlines deal was found by Cheapflights users on 4/28. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/204:00 pmPUS - ORD
1 stop31h 15mJapan Airlines
Thu 8/211:30 amORD - PUS
1 stop30h 05mJapan Airlines
Deal found 4/28$3,972

Cheapflights Fare Finder

Customize your flight search to find flights from Busan 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 2,558,603 searches. Data last updated April 28, 2025.
Use the filters below to find and compare flights from Busan to Illinois that are best for you.

Fly from

Busan

Fly to

Illinois

Route

Depart

Return

Price

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Wed 5/14

7:20 am-6:55 pm

2 stops25h 35m

Chicago O'Hare Intl

Thu 5/29

6:25 pm-5:45 pm

2 stops33h 20m

$1,294

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Tue 5/13

7:50 am-10:39 pm

2 stops52h 49m

Chicago O'Hare Intl

Thu 7/17

4:00 pm-7:00 am

1 stop25h 00m

$1,316

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Mon 6/9

10:40 am-9:37 pm

2 stops24h 57m

Chicago O'Hare Intl

Thu 6/19

7:09 am-7:35 pm

2 stops22h 26m

$1,429

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Wed 6/11

4:30 pm-8:44 am

2 stops30h 14m

Chicago Midway

Wed 6/18

6:00 am-7:35 pm

2 stops23h 35m

$1,443

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Tue 5/13

8:05 am-9:40 am

1 stop15h 35m

Chicago O'Hare Intl

Thu 7/17

12:30 pm-8:45 pm

1 stop18h 15m

$1,484

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Wed 6/11

7:45 am-2:25 pm

1 stop20h 40m

Chicago O'Hare Intl

Wed 6/18

4:00 pm-7:00 am

1 stop25h 00m

$1,529

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Wed 6/11

11:00 am-7:58 pm

2 stops22h 58m

Lambert-St Louis

Wed 6/18

7:30 am-4:35 pm

2 stops43h 05m

$1,531

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Thu 6/5

8:45 am-2:10 pm

2 stops43h 25m

Chicago O'Hare Intl

Sun 6/8

4:20 pm-7:35 pm

2 stops37h 15m

$1,562

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Sun 9/7

10:40 am-12:32 pm

2 stops39h 52m

Chicago Midway

Fri 9/12

9:20 am-8:45 pm

2 stops21h 25m

$1,738

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Wed 8/20

4:00 pm-9:15 am

1 stop31h 15m

Chicago O'Hare Intl

Thu 8/21

1:30 am-9:35 pm

1 stop30h 05m

$3,972

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 16 results
1
2

Best time to book a flight from Busan to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Busan 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 Busan to Illinois

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 April 28, 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and Asiana Airlines from Busan to Illinois 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.
Korean Air
8.4
Very good
1,063 reviews

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Korean Air
8.4
Very good
1,063 reviews
Korean Air
8.4
Very good
1,063 reviews

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Japan Airlines
8.3
Very good
1,459 reviews
Korean Air
8.4
Very good
1,063 reviews

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Asiana Airlines
8.2
Very good
443 reviews
Korean Air
8.4
Very good
1,063 reviews

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
Delta
8.0
Very good
7,927 reviews
Korean Air
8.4
Very good
1,063 reviews

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.
KLM
7.8
Good
1,333 reviews
Korean Air
8.4
Very good
1,063 reviews

Food

8.1

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Related info for your journey

Find useful and relevant information for your journey from Busan to Illinois. 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 Busan to Illinois?

    For a flight from Busan to Illinois, you will be flying from Gimhae. Busan Gimhae (PUS) is just 7.2 mi from the center of the city.

  • What are the cheapest airlines to fly from Busan to Illinois one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $1,066. Cathay Pacific flights start at $1,093 while deals on Korean Air start at $1,553 one-way.

  • What are the most popular routes from Busan to Illinois?

    The most popular route from Busan to Illinois is Busan Gimhae - Lambert-St Louis. You may also consider Busan Gimhae - Chicago O'Hare Intl or Busan Gimhae - Chicago Midway.

  • Can I find deals for flights from Busan to Illinois that include hotel bookings?

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

  • How can I find direct flights from Busan to Illinois?

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

  • Can I find deals for business class flights from Busan to Illinois?

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

  • What is the cheapest month to book a flight from Busan to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Busan to Illinois (average of $245). Flying from Busan to Illinois in March is currently the most expensive (average of $321). 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.

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