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$533+ Cheap flights from Illinois to Busan (PUS)

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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PUS
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Illinois to Busan

Keep the following information in mind while searching for Illinois to Busan flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,033
(Gotogate)

One-way from

$533
(Kiwi.com)
Provider with most accurate pricing for Chicago (CHI)-Busan Gimhae flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Busan Gimhae flights.
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From Illinois to Busan Gimhae
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One-way flight from Illinois to Busan Gimhae
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Find flight deals from Illinois to Busan

Cheapest flights from Illinois to Busan
Explore the most affordable flight options available from Illinois to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/20. 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.
Sun 4/64:00 pmORD - PUS
1 stop31h 35mCathay Pacific
Sun 4/132:20 pmPUS - ORD
1 stop38h 05mCathay Pacific
Deal found 2/20$1,033
This Trip.com deal was found by Cheapflights users on 2/20. 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.
Sun 4/64:00 pmORD - PUS
2 stops24h 10mMultiple Airlines
Sun 4/1311:00 amPUS - ORD
2 stops41h 25mMultiple Airlines
Deal found 2/20$1,140
This Delta deal was found by Cheapflights users on 2/20. 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 4/66:42 pmMDW - PUS
2 stops34h 53mDelta
Sun 4/134:30 pmPUS - MDW
2 stops34h 05mDelta
Deal found 2/20$1,910
This Korean Air deal was found by Cheapflights users on 2/20. 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.
Wed 4/912:20 pmORD - PUS
1 stop29h 25mKorean Air
Fri 4/184:30 pmPUS - ORD
1 stop31h 10mKorean Air
Deal found 2/20$1,942
This Korean Air deal was found by Cheapflights users on 2/20. 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.
Wed 4/99:23 amMDW - PUS
2 stops20h 12mKorean Air
Fri 4/187:00 amPUS - MDW
2 stops19h 35mKorean Air
Deal found 2/20$1,958
This Delta deal was found by Cheapflights users on 2/20. 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.
Fri 4/46:15 amORD - PUS
2 stops23h 20mDelta
Fri 4/118:45 amPUS - ORD
2 stops29h 14mDelta
Deal found 2/20$2,003
This Japan Airlines deal was found by Cheapflights users on 2/20. 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 3/510:35 amORD - PUS
2 stops34h 20mJapan Airlines
Wed 3/126:00 pmPUS - ORD
2 stops28h 35mJapan Airlines
Deal found 2/20$5,325

Find flights from Illinois to Busan within your budget

Customize your flight search to find flights from Illinois to Busan 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 20, 2025.

Fly from

Illinois

Fly to

Busan

Route

Depart

Return

Price

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 4/6

4:00 pm-1:35 pm

1 stop31h 35m

Busan Gimhae

Sun 4/13

2:20 pm-2:25 pm

1 stop38h 05m

$1,033

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 4/6

4:00 pm-6:10 am

2 stops24h 10m

Busan Gimhae

Sun 4/13

11:00 am-2:25 pm

2 stops41h 25m

$1,140

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Sun 4/6

6:42 pm-7:35 pm

2 stops34h 53m

Busan Gimhae

Sun 4/13

4:30 pm-12:35 pm

2 stops34h 05m

$1,910

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Wed 4/9

12:20 pm-7:45 am

1 stop29h 25m

Busan Gimhae

Fri 4/18

4:30 pm-9:40 am

1 stop31h 10m

$1,942

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Wed 4/9

9:23 am-7:35 pm

2 stops20h 12m

Busan Gimhae

Fri 4/18

7:00 am-12:35 pm

2 stops19h 35m

$1,958

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Fri 4/4

6:15 am-7:35 pm

2 stops23h 20m

Busan Gimhae

Fri 4/11

8:45 am-11:59 pm

2 stops29h 14m

$2,003

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Wed 3/5

10:35 am-11:55 am

2 stops34h 20m

Busan Gimhae

Wed 3/12

6:00 pm-8:35 am

2 stops28h 35m

$5,325

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sat 3/29

2:48 pm-3:55 pm

3 stops59h 07m

$533

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sat 3/29

3:40 pm-1:35 pm

1 stop31h 55m

$648

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Tue 5/20

12:20 pm-7:35 pm

1 stop17h 15m

$1,436

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 11 results
1
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Best time to book a flight from Illinois to Busan

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

Travel insights for flights from Illinois to Busan

Get recent, data-driven insights about flights from Illinois to Busan including ideal travel times, pricing trends, and more.

Rainfall in Busan by month

Plan your trip to Busan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Busan ranges from 0.9 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. December is typically the driest time to visit Busan when rainfall is around 0.9 in.

Temperature in Busan by month

Plan your trip to Busan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Busan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Busan

Get insights into the airlines that provide service to Busan. 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 Busan. Reviews last updated February 20, 2025.
To help decide which airline to fly from Illinois to Busan, see what other customers have to say about Korean Air, Japan Airlines and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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
1,037 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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
8,220 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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
821 reviews
Korean Air
8.4
Very good
1,037 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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 Illinois to Busan. 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 into for flights to Busan from Illinois?

    If you book a flight to Busan from Illinois, you will be flying to Gimhae, which is the city’s only airport. Busan Gimhae (PUS) is located 7.2 mi from the center of Busan.

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

    One-way options have recently been found by users for as low as $648 on Cathay Pacific. Other airlines that offer cheap prices include Korean Air from $1,436 and Japan Airlines from $10,343 one-way.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Busan 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 Illinois to Busan?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Busan (average of $1,166). Flying from Illinois to Busan in December is currently the most expensive (average of $2,247). 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.

See more FAQs

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Top airline flying from Illinois to Busan

Discover the top airline that operate flights from Illinois to Busan. 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 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,782Average$2,291FlexibilityNo cancel feeOn-time81%
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