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Busan

$532+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PUS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$1,079
(oojo)

One-way from

$532
(Kiwi.com)
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 September 11, 2025.

This oojo deal was found by Cheapflights users on 9/10. 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.
Thu 11/1311:30 pmORD - PUS
1 stop27h 10mEVA Air
Wed 11/266:55 pmPUS - ORD
1 stop39h 40mEVA Air
Deal found 9/10$1,079
This Jetabroad deal was found by Cheapflights users on 9/10. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:30 pmORD - PUS
1 stop27h 10mMultiple Airlines
Wed 11/266:55 pmPUS - ORD
2 stops26h 33mMultiple Airlines
Deal found 9/10$1,202
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/245:10 amMDW - PUS
2 stops24h 25mMultiple Airlines
Fri 10/317:55 amPUS - MDW
2 stops23h 20mMultiple Airlines
Deal found 9/9$1,330
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 10/2312:30 amORD - PUS
1 stop27h 15mMultiple Airlines
Fri 10/318:20 amPUS - ORD
2 stops28h 40mMultiple Airlines
Deal found 9/9$1,333
This oojo deal was found by Cheapflights users on 9/10. 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 11/82:40 pmORD - PUS
1 stop31h 40mCathay Pacific
Wed 11/122:05 pmPUS - ORD
1 stop37h 55mCathay Pacific
Deal found 9/10$1,383
This Trip.com deal was found by Cheapflights users on 9/10. 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.
Fri 10/2412:30 amORD - PUS
1 stop27h 10mEVA Air
Sat 11/16:55 pmPUS - ORD
1 stop39h 40mEVA Air
Deal found 9/10$1,386
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sat 10/256:00 amORD - PUS
2 stops23h 30mMultiple Airlines
Sat 11/16:55 pmPUS - ORD
1 stop39h 40mMultiple Airlines
Deal found 9/10$1,477
This Mytrip deal was found by Cheapflights users on 9/9. 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 10/248:50 amORD - PUS
2 stops36h 55mAir China
Fri 10/3112:45 pmPUS - ORD
2 stops24h 58mAir China
Deal found 9/9$1,537
This Delta deal was found by Cheapflights users on 9/11. 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 9/246:30 pmMDW - PUS
2 stops23h 15mDelta
Sat 9/278:05 amPUS - MDW
2 stops18h 23mDelta
Deal found 9/11$1,770
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 10/254:23 pmMDW - PUS
2 stops25h 47mDelta
Sat 11/17:00 amPUS - MDW
2 stops19h 31mDelta
Deal found 9/10$2,009
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/99:35 amMDW - PUS
2 stops21h 10mDelta
Thu 10/167:00 amPUS - MDW
2 stops23h 09mDelta
Deal found 9/10$2,059
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 11/136:00 amMDW - PUS
2 stops23h 45mDelta
Wed 11/267:00 amPUS - MDW
2 stops20h 34mDelta
Deal found 9/10$2,704

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 September 11, 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

Thu 11/13

11:30 pm-5:40 pm

1 stop27h 10m

Busan Gimhae

Wed 11/26

6:55 pm-7:35 pm

1 stop39h 40m

$1,079

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 3/8

12:30 am-5:40 pm

1 stop27h 10m

Busan Gimhae

Wed 3/11

6:55 pm-8:35 pm

1 stop39h 40m

$1,142

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 2/22

11:30 pm-5:40 pm

1 stop27h 10m

Busan Gimhae

Sat 2/28

6:55 pm-7:35 pm

1 stop39h 40m

$1,155

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Thu 11/13

11:30 pm-5:40 pm

1 stop27h 10m

Busan Gimhae

Wed 11/26

6:55 pm-6:28 am

2 stops26h 33m

$1,202

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Thu 2/26

7:30 am-8:45 pm

2 stops22h 15m

Busan Gimhae

Mon 3/2

4:10 pm-11:40 pm

2 stops22h 30m

$1,239

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sun 2/22

11:30 pm-5:40 pm

1 stop27h 10m

Busan Gimhae

Sat 2/28

6:55 pm-5:04 am

2 stops25h 09m

$1,256

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Fri 10/24

5:10 am-7:35 pm

2 stops24h 25m

Busan Gimhae

Fri 10/31

7:55 am-5:15 pm

2 stops23h 20m

$1,330

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Thu 10/23

12:30 am-5:45 pm

1 stop27h 15m

Busan Gimhae

Fri 10/31

8:20 am-11:00 pm

2 stops28h 40m

$1,333

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Fri 10/24

12:30 am-5:40 pm

1 stop27h 10m

Busan Gimhae

Sat 11/1

6:55 pm-8:35 pm

1 stop39h 40m

$1,386

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Wed 9/24

6:30 pm-7:45 am

2 stops23h 15m

Busan Gimhae

Sat 9/27

8:05 am-12:28 pm

2 stops18h 23m

$1,770

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 26 results
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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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Illinois to Busan?

    Airlines like EVA Air and Delta fly from Illinois to Busan in about 22h 15m. The time it takes to get you to your destination can typically vary by up to 4h 55m. Airlines will cover a distance of 6740 mi. This flight may include one or multiple stops.

  • 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 $2,244). 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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Alternative routes for Illinois to Busan

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,782Average$2,331FlexibilityNo cancel feeOn-time81%

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