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Busan

$640+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PUS
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Busan

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Busan (PUS). 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

$928
(Mytrip)

One-way from

$640
(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 January 21, 2025.

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.
Fri 3/710:48 amORD - PUS
2 stops33h 57mMultiple Airlines
Fri 3/1412:45 pmPUS - ORD
2 stops30h 00mMultiple Airlines
Deal found 1/21$1,027
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:30 pmSTL - PUS
2 stops41h 15mMultiple Airlines
Sun 9/77:00 amPUS - STL
2 stops50h 57mMultiple Airlines
Deal found 1/21$1,114
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/14:05 pmORD - PUS
1 stop31h 45mCathay Pacific
Wed 4/301:55 pmPUS - ORD
1 stop38h 30mCathay Pacific
Deal found 1/21$1,333
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/712:30 pmORD - PUS
1 stop17h 05mKorean Air
Thu 7/317:00 amPUS - ORD
1 stop16h 40mKorean Air
Deal found 1/21$1,959
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.
Fri 2/2111:25 amORD - PUS
1 stop36h 50mDelta
Thu 2/274:10 pmPUS - ORD
1 stop31h 30mDelta
Deal found 1/21$1,991
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.
Mon 3/37:15 amSTL - PUS
2 stops22h 30mDelta
Sun 3/167:00 amPUS - STL
2 stops25h 05mDelta
Deal found 1/21$1,996
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/412:52 pmSTL - PUS
2 stops31h 38mKorean Air
Tue 3/1112:00 pmPUS - STL
2 stops25h 31mKorean Air
Deal found 1/21$2,005
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/269:30 amMDW - PUS
2 stops20h 05mKorean Air
Sat 5/37:00 amPUS - MDW
2 stops19h 30mKorean Air
Deal found 1/21$2,161
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/85:15 pmORD - PUS
2 stops35h 05mAir France
Thu 7/318:00 amPUS - ORD
2 stops45h 00mAir France
Deal found 1/21$2,376
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/268:45 amORD - PUS
3 stops37h 00mAir China
Sat 5/312:45 pmPUS - ORD
2 stops48h 15mAir China
Deal found 1/21$2,710
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/711:35 amORD - PUS
3 stops52h 45mSingapore Airlines
Tue 7/297:40 amPUS - ORD
3 stops53h 45mSingapore Airlines
Deal found 1/21$2,719
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.
Fri 3/76:00 amMDW - PUS
2 stops23h 45mDelta
Fri 3/144:10 pmPUS - MDW
2 stops20h 13mDelta
Deal found 1/21$3,476

Find flights from Illinois to Busan within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Mon 3/3

11:35 am-11:45 am

2 stops33h 10m

Busan Gimhae

Mon 3/10

12:45 pm-4:45 am

2 stops30h 00m

$928

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Mon 3/3

2:40 pm-1:05 pm

1 stop31h 25m

Busan Gimhae

Mon 3/10

2:05 pm-2:00 pm

1 stop37h 55m

$1,149

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Fri 2/21

11:25 am-3:15 pm

1 stop36h 50m

Busan Gimhae

Thu 2/27

4:10 pm-8:40 am

1 stop31h 30m

$1,991

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Mon 3/3

7:15 am-8:45 pm

2 stops22h 30m

Busan Gimhae

Sun 3/16

7:00 am-6:05 pm

2 stops25h 05m

$1,996

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Tue 3/4

12:52 pm-11:30 am

2 stops31h 38m

Busan Gimhae

Tue 3/11

12:00 pm-11:31 pm

2 stops25h 31m

$2,005

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Mon 3/3

3:50 pm-11:35 am

3 stops28h 45m

Busan Gimhae

Sun 3/16

8:45 pm-5:59 pm

3 stops35h 14m

$2,360

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Mon 3/3

6:00 am-8:45 pm

2 stops23h 45m

Busan Gimhae

Mon 3/10

7:55 am-10:23 pm

2 stops28h 28m

$2,756

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Tue 4/1

6:45 am-6:20 pm

2 stops21h 35m

Busan Gimhae

Tue 4/29

7:00 am-9:50 am

1 stop16h 50m

$6,088

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Tue 4/1

8:45 am-11:45 am

3 stops37h 00m

Busan Gimhae

Tue 4/29

12:45 pm-9:14 pm

2 stops46h 29m

$12,010

St. LouisBusan

STL - PUS

STLPUS

Lambert-St Louis

Sat 5/10

6:53 pm-7:55 pm

3 stops59h 02m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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.

Travel insights for flights from Illinois to Busan

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

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 January 21, 2025.
Korean Air
8.5
Very good
1,039 reviews

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.5

Food

8.1

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

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.5

Food

8.1

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

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.5

Food

8.1

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

Comfort

8.3

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.5

Food

8.1

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 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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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,827Average$2,613FlexibilityNo cancel feeOn-time81%
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