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$570+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ORD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Round-trip from

$1,068
(Mytrip)

One-way from

$570
(Mytrip)
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 March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/113:45 pmPUS - ORD
2 stops28h 57mMultiple Airlines
Sun 5/188:37 amORD - PUS
2 stops33h 28mMultiple Airlines
Deal found 3/27$1,068
This Gotogate deal was found by Cheapflights users on 3/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/89:15 pmPUS - ORD
1 stop26h 15mKorean Air
Thu 9/1112:10 pmORD - PUS
1 stop17h 25mKorean Air
Deal found 3/26$1,280
This Delta deal was found by Cheapflights users on 3/27. 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.
Sun 5/114:30 pmPUS - STL
2 stops38h 17mDelta
Sun 5/187:05 amSTL - PUS
2 stops36h 25mDelta
Deal found 3/27$1,283
This Delta deal was found by Cheapflights users on 3/27. 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.
Mon 5/58:00 amPUS - ORD
2 stops27h 31mDelta
Sat 5/106:59 pmORD - PUS
2 stops34h 36mDelta
Deal found 3/27$1,310
This Delta deal was found by Cheapflights users on 3/27. 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.
Sun 5/117:00 amPUS - MDW
2 stops19h 28mDelta
Sun 5/186:00 amMDW - PUS
2 stops37h 30mDelta
Deal found 3/27$1,458
This Gotogate deal was found by Cheapflights users on 3/27. 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 4/27:45 amPUS - ORD
1 stop20h 40mCathay Pacific
Wed 4/94:00 pmORD - PUS
1 stop25h 00mCathay Pacific
Deal found 3/27$1,463
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Sat 9/277:40 amPUS - ORD
2 stops50h 23mSingapore Airlines
Sat 10/189:00 pmORD - PUS
2 stops43h 20mSingapore Airlines
Deal found 3/27$1,553
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/118:45 amPUS - STL
3 stops41h 51mMultiple Airlines
Sun 5/187:30 amSTL - PUS
2 stops24h 05mMultiple Airlines
Deal found 3/27$1,593
This Trip.com deal was found by Cheapflights users on 3/27. 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.
Mon 5/58:05 amPUS - MDW
2 stops18h 30mKorean Air
Sat 5/109:20 amMDW - PUS
2 stops20h 15mKorean Air
Deal found 3/27$2,252
This Japan Airlines deal was found by Cheapflights users on 3/26. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:00 pmPUS - ORD
1 stop31h 05mJapan Airlines
Wed 9/101:05 amORD - PUS
1 stop30h 30mJapan Airlines
Deal found 3/26$3,936

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 March 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

Sun 5/11

3:45 pm-6:42 am

2 stops28h 57m

Chicago O'Hare Intl

Sun 5/18

8:37 am-8:05 am

2 stops33h 28m

$1,068

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Mon 9/8

9:15 pm-9:30 am

1 stop26h 15m

Chicago O'Hare Intl

Thu 9/11

12:10 pm-7:35 pm

1 stop17h 25m

$1,280

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Sun 5/11

4:30 pm-4:47 pm

2 stops38h 17m

Lambert-St Louis

Sun 5/18

7:05 am-9:30 am

2 stops36h 25m

$1,283

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Mon 5/5

8:00 am-9:31 pm

2 stops27h 31m

Chicago O'Hare Intl

Sat 5/10

6:59 pm-7:35 pm

2 stops34h 36m

$1,310

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Sun 5/11

7:00 am-12:28 pm

2 stops19h 28m

Chicago Midway

Sun 5/18

6:00 am-9:30 am

2 stops37h 30m

$1,458

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Mon 6/9

7:45 am-2:25 pm

1 stop20h 40m

Chicago O'Hare Intl

Mon 6/23

4:00 pm-7:00 am

1 stop25h 00m

$1,530

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Sun 5/11

8:45 am-12:36 pm

3 stops41h 51m

Lambert-St Louis

Sun 5/18

7:30 am-9:35 pm

2 stops24h 05m

$1,593

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Mon 5/5

8:05 am-12:35 pm

2 stops18h 30m

Chicago Midway

Sat 5/10

9:20 am-7:35 pm

2 stops20h 15m

$2,252

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Mon 9/8

4:00 pm-9:05 am

1 stop31h 05m

Chicago O'Hare Intl

Wed 9/10

1:05 am-9:35 pm

1 stop30h 30m

$3,936

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Fri 4/25

8:35 am-5:45 am

3 stops35h 10m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 17 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 March 28, 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and Delta 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
1,050 reviews

Crew

8.7

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

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
1,050 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

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
1,440 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

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
7,896 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

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.
Cathay Pacific
7.5
Good
837 reviews
Korean Air
8.4
Very good
1,050 reviews

Crew

8.7

Food

8.1

Overall

8.4

Entertainment

8.2

Comfort

8.3

Boarding

8.5

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 $1,124. Korean Air flights start at $1,128 while deals on Cathay Pacific start at $1,558 one-way.

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

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

  • 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 $323). 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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