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$1,037+ Cheap flights from Busan (PUS) to Illinois

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
PUS — ORD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Busan to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Busan (PUS) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$1,037
(Gotogate)
From Busan Gimhae to Illinois
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Find 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 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/20. 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.
Thu 3/612:00 pmPUS - STL
2 stops42h 06mMultiple Airlines
Thu 3/133:50 pmSTL - PUS
2 stops38h 55mMultiple Airlines
Deal found 1/20$1,037
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Wed 3/511:05 amPUS - ORD
2 stops27h 01mMultiple Airlines
Mon 3/104:45 pmORD - PUS
2 stops30h 20mMultiple Airlines
Deal found 1/21$1,083
This Gotogate deal was found by Cheapflights users on 1/20. 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.
Thu 2/68:20 pmPUS - ORD
1 stop27h 20mKorean Air
Sun 2/911:25 amORD - PUS
1 stop34h 05mKorean Air
Deal found 1/20$1,248
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 3/54:10 pmPUS - MDW
2 stops32h 25mDelta
Mon 3/107:09 pmMDW - PUS
2 stops34h 16mDelta
Deal found 1/20$1,287
This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 3/187:00 amPUS - ORD
2 stops30h 53mDelta
Wed 3/267:30 amORD - PUS
2 stops21h 55mDelta
Deal found 1/21$1,298
This Korean Air deal was found by Cheapflights users on 1/21. 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.
Mon 9/110:45 amPUS - STL
2 stops24h 46mKorean Air
Wed 10/18:55 amSTL - PUS
2 stops21h 50mKorean Air
Deal found 1/21$1,809
This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/64:10 pmPUS - ORD
2 stops37h 20mKLM
Sun 2/94:25 pmORD - PUS
2 stops37h 20mKLM
Deal found 1/20$2,133
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/611:05 amPUS - MDW
3 stops44h 35mMultiple Airlines
Thu 3/131:16 pmMDW - PUS
3 stops34h 04mMultiple Airlines
Deal found 1/20$2,225
This Gotogate deal was found by Cheapflights users on 1/21. 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.
Wed 3/52:05 pmPUS - ORD
1 stop37h 55mCathay Pacific
Mon 3/103:40 pmORD - PUS
1 stop31h 25mCathay Pacific
Deal found 1/21$3,069
This Korean Air deal was found by Cheapflights users on 1/20. 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 10/18:00 amPUS - MDW
2 stops18h 30mKorean Air
Fri 10/179:30 amMDW - PUS
2 stops20h 05mKorean Air
Deal found 1/20$3,093

Find flights from Busan to Illinois within your budget

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 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BusanSt. Louis

PUS - STL

PUSSTL

Busan Gimhae

Thu 3/6

12:00 pm-3:06 pm

2 stops42h 06m

Lambert-St Louis

Thu 3/13

3:50 pm-8:45 pm

2 stops38h 55m

$1,037

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Wed 3/5

11:05 am-11:06 pm

2 stops27h 01m

Chicago O'Hare Intl

Mon 3/10

4:45 pm-1:05 pm

2 stops30h 20m

$1,083

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Thu 2/6

8:20 pm-8:40 am

1 stop27h 20m

Chicago O'Hare Intl

Sun 2/9

11:25 am-12:30 pm

1 stop34h 05m

$1,248

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Wed 3/5

4:10 pm-9:35 am

2 stops32h 25m

Chicago Midway

Mon 3/10

7:09 pm-7:25 pm

2 stops34h 16m

$1,287

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Tue 3/18

7:00 am-11:53 pm

2 stops30h 53m

Chicago O'Hare Intl

Wed 3/26

7:30 am-7:25 pm

2 stops21h 55m

$1,298

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Thu 2/6

4:10 pm-2:30 pm

2 stops37h 20m

Chicago O'Hare Intl

Sun 2/9

4:25 pm-8:45 pm

2 stops37h 20m

$2,133

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Thu 3/6

11:05 am-4:40 pm

3 stops44h 35m

Chicago Midway

Thu 3/13

1:16 pm-1:20 pm

3 stops34h 04m

$2,225

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Wed 3/5

2:05 pm-1:00 pm

1 stop37h 55m

Chicago O'Hare Intl

Mon 3/10

3:40 pm-1:05 pm

1 stop31h 25m

$3,069

BusanChicago

PUS - MDW

PUSMDW

Busan Gimhae

Wed 3/5

7:00 am-11:59 am

2 stops19h 59m

Chicago Midway

Wed 3/12

9:25 am-7:25 pm

2 stops20h 00m

$5,151

BusanChicago

PUS - ORD

PUSORD

Busan Gimhae

Wed 3/12

4:10 pm-3:45 pm

2 stops37h 35m

$1,066

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 15 results
1
2

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.

Travel insights for flights from Busan to Illinois

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

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated January 21, 2025.
Peruse reviews from past customers who have flown with Korean Air and Delta from Busan to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.5

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.5

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates
8.1
Very good
3,358 reviews
Korean Air
8.5
Very good
1,039 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.5

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,521 reviews
Korean Air
8.5
Very good
1,039 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.5

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

KLM
7.8
Good
1,341 reviews
Korean Air
8.5
Very good
1,039 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.5

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Cathay Pacific
7.5
Good
830 reviews
Korean Air
8.5
Very good
1,039 reviews

Entertainment

8.2

Food

8.1

Boarding

8.5

Crew

8.7

Overall

8.5

Comfort

8.3

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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.

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

    To fly one-way, consider booking your trip with Emirates, which is currently one of the cheapest options available, starting at $1,066. Cathay Pacific flights start at $1,072 while deals on Delta start at $1,115 one-way.

  • 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.

  • What is the cheapest month to book a flight from Busan to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Busan to Illinois (average of $245). Flying from Busan to Illinois in March is currently the most expensive (average of $320). 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 Busan to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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