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$507+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ORD
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This Gotogate deal was found by Cheapflights users on 1/26. 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.
Thu 5/287:15 am
PUS
-
ORD
2 stops44h 10m
Multiple Airlines
Wed 6/33:40 pm
ORD
-
PUS
2 stops49h 40m
Multiple Airlines
Deal found 1/26$802
This Gotogate deal was found by Cheapflights users on 1/26. 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.
Thu 5/2810:55 am
PUS
-
ORD
2 stops22h 30m
Multiple Airlines
Tue 6/29:55 am
ORD
-
PUS
2 stops31h 25m
Multiple Airlines
Deal found 1/26$851
This EVA Air deal was found by Cheapflights users on 1/25. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/63:45 pm
PUS
-
ORD
1 stop18h 50m
EVA Air
Sun 3/812:30 am
ORD
-
PUS
1 stop27h 10m
EVA Air
Deal found 1/25$1,056
This EVA Air deal was found by Cheapflights users on 1/26. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:55 pm
PUS
-
ORD
1 stop39h 40m
EVA Air
Tue 2/2411:30 pm
ORD
-
PUS
1 stop27h 10m
EVA Air
Deal found 1/26$1,152
This Hanatour deal was found by Cheapflights users on 1/26. 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 Hanatour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:10 pm
PUS
-
ORD
1 stop39h 50m
EVA Air
Tue 6/212:30 am
ORD
-
PUS
1 stop27h 30m
EVA Air
Deal found 1/26$1,161
This Gotogate deal was found by Cheapflights users on 1/26. 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.
Thu 5/287:10 pm
PUS
-
ORD
1 stop39h 50m
EVA Air
Tue 6/27:00 am
ORD
-
PUS
2 stops45h 00m
EVA Air
Deal found 1/26$1,312
This Delta deal was found by Cheapflights users on 1/25. 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 3/1112:00 pm
PUS
-
MDW
2 stops24h 31m
Delta
Wed 3/189:35 am
MDW
-
PUS
2 stops21h 10m
Delta
Deal found 1/25$1,405
This Korean Air deal was found by Cheapflights users on 1/25. 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 3/67:00 am
PUS
-
MDW
2 stops20h 46m
Korean Air
Mon 3/99:35 am
MDW
-
PUS
2 stops35h 15m
Korean Air
Deal found 1/25$1,509
This Delta deal was found by Cheapflights users on 1/25. 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 2/1310:25 am
PUS
-
MDW
2 stops39h 38m
Delta
Tue 2/246:00 am
MDW
-
PUS
2 stops35h 10m
Delta
Deal found 1/25$1,529
This Korean Air deal was found by Cheapflights users on 1/25. 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 9/117:00 am
PUS
-
STL
2 stops20h 17m
Korean Air
Mon 9/147:30 am
STL
-
PUS
2 stops20h 50m
Korean Air
Deal found 1/25$1,581
This Delta deal was found by Cheapflights users on 1/25. 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 2/84:10 pm
PUS
-
MDW
2 stops21h 12m
Delta
Sun 2/156:00 am
MDW
-
PUS
2 stops23h 45m
Delta
Deal found 1/25$1,628

Find flight deals from Busan to Illinois

Keep the following information in mind while searching for Busan to Illinois flight deals. Data was last updated January 27, 2026.

Round-trip from

$802
(Gotogate)

One-way from

$507
(Mytrip)
From Busan Gimhae to Illinois
Search Deals
One-way flight from Busan Gimhae to Illinois
Search Deals

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 January 27, 2026.
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

Thu 5/28

7:15 am-1:25 pm

2 stops44h 10m

Chicago O'Hare Intl

Wed 6/3

3:40 pm-7:20 am

2 stops49h 40m

$802

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Fri 3/6

3:45 pm-7:35 pm

1 stop18h 50m

Chicago O'Hare Intl

Sun 3/8

12:30 am-5:40 pm

1 stop27h 10m

$1,056

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Thu 5/28

8:00 pm-6:40 am

2 stops24h 40m

Chicago O'Hare Intl

Tue 6/2

7:45 pm-11:15 am

2 stops25h 30m

$1,089

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Fri 2/13

6:55 pm-7:35 pm

1 stop39h 40m

Chicago O'Hare Intl

Tue 2/24

11:30 pm-5:40 pm

1 stop27h 10m

$1,152

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Thu 5/28

7:10 pm-9:00 pm

1 stop39h 50m

Chicago O'Hare Intl

Tue 6/2

12:30 am-6:00 pm

1 stop27h 30m

$1,161

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Wed 3/11

12:00 pm-10:31 pm

2 stops24h 31m

Chicago Midway

Wed 3/18

9:35 am-8:45 pm

2 stops21h 10m

$1,405

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Fri 3/6

7:00 am-12:46 pm

2 stops20h 46m

Chicago Midway

Mon 3/9

9:35 am-8:45 pm

2 stops21h 10m

$1,509

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Fri 2/13

10:25 am-11:03 am

2 stops39h 38m

Chicago Midway

Tue 2/24

6:00 am-8:10 am

2 stops35h 10m

$1,529

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Sun 2/8

4:10 pm-10:22 pm

2 stops21h 12m

Chicago Midway

Sun 2/15

6:00 am-8:45 pm

2 stops23h 45m

$1,628

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Wed 4/8

7:15 am-7:58 pm

2 stops26h 43m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 14 results
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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
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 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.

  • How long is the flight from Busan to Illinois?

    Departing from Busan to Illinois will take you 18h 50m. There are 6614 mi between Busan and Illinois. This flight may include one or multiple stops.

  • 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.

See more FAQs

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