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Busan

$1,068+ Cheap flights from Illinois to Busan (PUS)

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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PUS
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$1,068
(oojo)
From Illinois to Busan Gimhae
Search Deals

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 July 3, 2025.

This oojo deal was found by Cheapflights users on 6/30. 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.
Sun 8/178:42 pmORD - PUS
2 stops24h 33mChina Airlines
Sun 11/97:45 pmPUS - ORD
2 stops25h 37mChina Airlines
Deal found 6/30$1,068
This Gotogate deal was found by Cheapflights users on 7/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/234:00 pmORD - PUS
1 stop25h 00mCathay Pacific
Sat 8/307:45 amPUS - ORD
1 stop20h 40mCathay Pacific
Deal found 7/3$1,072
This Travelocity deal was found by Cheapflights users on 6/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/174:00 pmORD - PUS
1 stop25h 00mMultiple Airlines
Sun 11/94:10 pmPUS - ORD
2 stops59h 50mMultiple Airlines
Deal found 6/30$1,178
This Delta deal was found by Cheapflights users on 7/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/156:40 amSTL - PUS
2 stops35h 05mDelta
Thu 8/218:05 amPUS - STL
2 stops30h 33mDelta
Deal found 7/3$1,241
This Korean Air deal was found by Cheapflights users on 6/30. 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.
Fri 11/286:45 amSTL - PUS
2 stops23h 00mKorean Air
Thu 12/184:10 pmPUS - STL
2 stops21h 52mKorean Air
Deal found 6/30$1,245
This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/152:30 pmSTL - PUS
3 stops30h 45mMultiple Airlines
Thu 8/217:35 amPUS - STL
3 stops42h 09mMultiple Airlines
Deal found 7/3$1,535
This Delta deal was found by Cheapflights users on 7/2. 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 8/139:31 amMDW - PUS
2 stops20h 04mDelta
Wed 8/2010:40 amPUS - MDW
2 stops25h 04mDelta
Deal found 7/2$1,911
This ezTravel 易遊網 deal was found by Cheapflights users on 7/1. 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 ezTravel 易遊網 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/139:15 amMDW - PUS
2 stops20h 20mKorean Air
Wed 8/2010:40 amPUS - MDW
2 stops39h 48mKorean Air
Deal found 7/1$1,974

Cheapflights Fare Finder

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 July 3, 2025.
Use the filters below to find and compare flights from Illinois to Busan that are best for you.

Fly from

Illinois

Fly to

Busan

Route

Depart

Return

Price

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 8/17

8:42 pm-11:15 am

2 stops24h 33m

Busan Gimhae

Sun 11/9

7:45 pm-6:22 am

2 stops25h 37m

$1,068

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sat 8/23

4:00 pm-7:00 am

1 stop25h 00m

Busan Gimhae

Sat 8/30

7:45 am-2:25 pm

1 stop20h 40m

$1,072

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 8/17

4:00 pm-7:00 am

1 stop25h 00m

Busan Gimhae

Sun 11/9

4:10 pm-1:00 pm

2 stops59h 50m

$1,178

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Fri 8/15

6:40 am-7:45 am

2 stops35h 05m

Busan Gimhae

Thu 8/21

8:05 am-12:38 am

2 stops30h 33m

$1,241

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Fri 8/15

2:30 pm-11:15 am

3 stops30h 45m

Busan Gimhae

Thu 8/21

7:35 am-11:44 am

3 stops42h 09m

$1,535

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Wed 8/13

9:31 am-7:35 pm

2 stops20h 04m

Busan Gimhae

Wed 8/20

10:40 am-9:44 pm

2 stops25h 04m

$1,911

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Wed 8/13

9:15 am-7:35 pm

2 stops20h 20m

Busan Gimhae

Wed 8/20

10:40 am-12:28 pm

2 stops39h 48m

$1,974

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Busan
No data available for this route at this time. Please check back soon.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Korean Air, China Airlines, and Delta from Illinois to Busan to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,101 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,101 reviews
Korean Air
8.4
Very good
1,101 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very good
744 reviews
Korean Air
8.4
Very good
1,101 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,982 reviews
Korean Air
8.4
Very good
1,101 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
921 reviews
Korean Air
8.4
Very good
1,101 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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 most popular routes from Illinois to Busan?

    The most popular route from Illinois to Busan is Chicago O'Hare Intl - Busan Gimhae. You may also consider Chicago Midway - 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,782Average$2,291FlexibilityNo cancel feeOn-time81%

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