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Busan

$1,044+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PUS
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
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 June 16, 2025.

Round-trip from

$1,072
(Gurufare)

One-way from

$1,044
(Flightnetwork)
From Illinois to Busan Gimhae
Search Deals
One-way flight 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 June 16, 2025.

This Gurufare deal was found by Cheapflights users on 6/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/244:00 pmORD - PUS
1 stop25h 00mCathay Pacific
Sat 8/307:45 amPUS - ORD
1 stop20h 40mCathay Pacific
Deal found 6/15$1,072
This oojo deal was found by Cheapflights users on 6/15. 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 8/241:01 pmORD - PUS
2 stops32h 14mChina Airlines
Sat 8/3012:15 pmPUS - ORD
2 stops32h 48mChina Airlines
Deal found 6/15$1,222
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Sun 8/244:00 pmORD - PUS
1 stop25h 00mMultiple Airlines
Sat 8/307:50 amPUS - ORD
2 stops36h 10mMultiple Airlines
Deal found 6/15$1,297
This oojo deal was found by Cheapflights users on 6/14. 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.
Sat 12/2711:05 amORD - PUS
1 stop18h 40mKorean Air
Tue 1/1310:25 amPUS - ORD
1 stop37h 15mKorean Air
Deal found 6/14$2,047
This Delta deal was found by Cheapflights users on 6/15. 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 7/3012:30 pmORD - PUS
1 stop18h 15mDelta
Wed 8/68:45 amPUS - ORD
2 stops27h 23mDelta
Deal found 6/15$2,055
This Delta deal was found by Cheapflights users on 6/15. 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 7/309:25 amMDW - PUS
2 stops20h 10mDelta
Wed 8/610:40 amPUS - MDW
2 stops25h 02mDelta
Deal found 6/15$2,059
This Korean Air deal was found by Cheapflights users on 6/14. 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.
Tue 7/299:25 amMDW - PUS
2 stops20h 10mKorean Air
Tue 8/58:05 amPUS - MDW
2 stops18h 24mKorean Air
Deal found 6/14$2,370

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 June 16, 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 8/24

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 8/24

1:01 pm-11:15 am

2 stops32h 14m

Busan Gimhae

Sat 8/30

12:15 pm-7:03 am

2 stops32h 48m

$1,222

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 8/24

4:00 pm-7:00 am

1 stop25h 00m

Busan Gimhae

Sat 8/30

7:50 am-6:00 am

2 stops36h 10m

$1,297

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Wed 7/30

12:30 pm-8:45 pm

1 stop18h 15m

Busan Gimhae

Wed 8/6

8:45 am-10:08 pm

2 stops27h 23m

$2,055

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Wed 7/30

9:25 am-8:45 pm

2 stops21h 20m

Busan Gimhae

Wed 8/6

10:40 am-9:42 pm

2 stops25h 02m

$2,059

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Wed 7/30

12:30 pm-9:30 am

1 stop31h 00m

Busan Gimhae

Wed 8/6

7:00 am-9:40 am

1 stop16h 40m

$2,067

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Tue 7/29

9:25 am-7:35 pm

2 stops20h 10m

Busan Gimhae

Tue 8/5

8:05 am-12:29 pm

2 stops18h 24m

$2,370

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Tue 7/29

6:24 pm-7:00 pm

2 stops34h 36m

$1,044

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Thu 7/31

12:54 pm-11:45 am

2 stops32h 51m

$1,230

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Tue 7/29

12:30 pm-7:35 pm

1 stop17h 05m

$1,233

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 13 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Busan

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 June 16, 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 China Airlines. 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
1,090 reviews

Crew

8.7

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Food

8.1

Overall

8.4

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
1,090 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Food

8.1

Overall

8.4

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.
Japan Airlines
8.3
Very good
1,494 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Food

8.1

Overall

8.4

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
742 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Food

8.1

Overall

8.4

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
7,963 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Food

8.1

Overall

8.4

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
7.5
Good
893 reviews
Korean Air
8.4
Very good
1,090 reviews

Crew

8.7

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Food

8.1

Overall

8.4

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 cheapest airlines to fly from Illinois to Busan one-way?

    One-way options have recently been found by users for as low as $1,044 on China Airlines. Other airlines that offer cheap prices include Air China from $1,230 and Korean Air from $1,233 one-way.

  • 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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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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,782Average$2,291FlexibilityNo cancel feeOn-time81%

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