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Cheap flights from Chicago to Busan from $642

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Busan departing on 10/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Cathay Pacific Logo
4:00 pm - 7:00 amORD-PUS
25h 00m1 stop
Cathay Pacific Logo
7:45 am - 2:25 pmPUS-ORD
20h 40m1 stop
$962Cathay Pacific
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Thu, Sep 4 - Mon, Sep 8
Logo
5:45 pm - 4:35 pmORD-PUS
32h 50m1 stop
Logo
8:30 am - 11:59 amPUS-ORD
41h 29m2 stops
$1,008
Find Deal
Wed, Aug 27 - Wed, Sep 3
Cathay Pacific Logo
4:00 pm - 7:00 amORD-PUS
25h 00m1 stop
Cathay Pacific Logo
7:45 am - 2:25 pmPUS-ORD
20h 40m1 stop
$1,009Cathay Pacific
Find Deal
Thu, Sep 4 - Mon, Sep 8
Cathay Pacific Logo
4:00 pm - 7:00 amORD-PUS
25h 00m1 stop
Cathay Pacific Logo
7:45 am - 2:25 pmPUS-ORD
20h 40m1 stop
$1,087Cathay Pacific
Find Deal
Wed, Aug 27 - Wed, Sep 3
Cathay Pacific Logo
4:00 pm - 7:00 amORD-PUS
25h 00m1 stop
Cathay Pacific Logo
2:05 pm - 1:00 pmPUS-ORD
37h 55m1 stop
$1,096Cathay Pacific
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Mon, Sep 1 - Sun, Nov 30
China Airlines Logo
6:20 am - 7:00 pmORD-PUS
46h 40m2 stops
China Airlines Logo
11:50 am - 6:28 amPUS-ORD
33h 38m2 stops
$1,269China Airlines
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Mon, Sep 1 - Sun, Nov 30
China Airlines Logo
6:20 am - 7:00 pmORD-PUS
46h 40m2 stops
China Airlines Logo
10:10 am - 12:03 pmPUS-ORD
40h 53m2 stops
$1,270China Airlines
Find Deal
Mon, Sep 1 - Sun, Nov 30
Air China Logo
6:15 am - 11:45 amORD-PUS
39h 30m2 stops
Air China Logo
12:45 pm - 11:15 pmPUS-ORD
24h 30m2 stops
$1,354Air China
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Wed, Sep 17 - Tue, Sep 30
EVA Air Logo
11:30 pm - 5:40 pmORD-PUS
27h 10m1 stop
EVA Air Logo
6:55 pm - 7:35 pmPUS-ORD
39h 40m1 stop
$1,666EVA Air
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Sat, Dec 27 - Tue, Jan 13
Korean Air Logo
9:30 am - 7:35 pmMDW-PUS
20h 05m2 stops
Korean Air Logo
8:05 am - 12:28 pmPUS-MDW
18h 23m2 stops
$2,373Korean Air
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Thu, Sep 4 - Mon, Sep 8

Cathay Pacific flights from Chicago to Busan

Our best Cathay Pacific deals on Chicago to Busan flight tickets
Cathay Pacific
Sep 4
ORD4:00 pmChicago O'Hare Intl
25h 00m
1 stop
PUS7:00 amBusan Gimhae
Sep 8
PUS7:45 amBusan Gimhae
20h 40m
1 stop
ORD2:25 pmChicago O'Hare Intl
$962
Find similar
Cathay Pacific
Sep 4
ORD4:00 pmChicago O'Hare Intl
25h 00m
1 stop
PUS7:00 amBusan Gimhae
Sep 8
PUS7:45 amBusan Gimhae
20h 40m
1 stop
ORD2:25 pmChicago O'Hare Intl
$1,009
Find similar
Cathay Pacific
Aug 27
ORD4:00 pmChicago O'Hare Intl
25h 00m
1 stop
PUS7:00 amBusan Gimhae
Sep 3
PUS7:45 amBusan Gimhae
20h 40m
1 stop
ORD2:25 pmChicago O'Hare Intl
$1,087
Find similar

Delta flights from Chicago to Busan

Our best Delta deals on Chicago to Busan flight tickets
Delta
Sep 12
MDW9:20 amChicago Midway
21h 25m
2 stops
PUS8:45 pmBusan Gimhae
Sep 19
PUS8:05 amBusan Gimhae
24h 30m
2 stops
MDW6:35 pmChicago Midway
$2,011
Find similar
Delta
Sep 4
MDW9:30 amChicago Midway
21h 15m
2 stops
PUS8:45 pmBusan Gimhae
Sep 8
PUS7:00 amBusan Gimhae
19h 28m
2 stops
MDW12:28 pmChicago Midway
$3,141
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momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Chicago to Busan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Thu 9/4

4:00 pm-7:00 am

1 stop25h 00m

Busan Gimhae

Mon 9/8

7:45 am-2:25 pm

1 stop20h 40m

$962

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Wed 8/27

5:45 pm-4:35 pm

1 stop32h 50m

Busan Gimhae

Wed 9/3

8:30 am-11:59 am

2 stops41h 29m

$1,008

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Thu 9/4

4:00 pm-7:00 am

1 stop25h 00m

Busan Gimhae

Mon 9/8

7:45 am-2:25 pm

1 stop20h 40m

$1,009

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Wed 8/27

4:00 pm-7:00 am

1 stop25h 00m

Busan Gimhae

Wed 9/3

7:45 am-2:25 pm

1 stop20h 40m

$1,087

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Mon 9/1

4:00 pm-7:00 am

1 stop25h 00m

Busan Gimhae

Sun 11/30

2:05 pm-1:00 pm

1 stop37h 55m

$1,096

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Mon 9/1

6:20 am-7:00 pm

2 stops46h 40m

Busan Gimhae

Sun 11/30

11:50 am-6:28 am

2 stops33h 38m

$1,269

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Mon 9/1

6:20 am-7:00 pm

2 stops46h 40m

Busan Gimhae

Sun 11/30

10:10 am-12:03 pm

2 stops40h 53m

$1,270

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Wed 9/17

6:15 am-11:45 am

2 stops39h 30m

Busan Gimhae

Tue 9/30

12:45 pm-11:15 pm

2 stops24h 30m

$1,354

ChicagoBusan

ORD - PUS

ORDPUS

Chicago O'Hare Intl

Sat 12/27

11:30 pm-5:40 pm

1 stop27h 10m

Busan Gimhae

Tue 1/13

6:55 pm-7:35 pm

1 stop39h 40m

$1,666

ChicagoBusan

MDW - PUS

MDWPUS

Chicago Midway

Thu 9/4

9:30 am-7:35 pm

2 stops20h 05m

Busan Gimhae

Mon 9/8

8:05 am-12:28 pm

2 stops18h 23m

$2,373

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Busan from

How to get the cheapest flight ticket from Chicago to Busan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Busan?

Our data shows that Thursday is the least expensive day to fly to Busan. Tickets to fly out on this day can be as low as $1,908. Flights from Chicago to Busan on a Monday will generally be more expensive and average around $3,569. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

When to book flights from Chicago to Busan

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Busan according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Busan (CHI to PUS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Busan

Best Price Found

$642

Fastest flight time

18h 35m

Direct flights

None

Airports in Busan

1 airport
The best one-way flight to Busan from Chicago in the past 72 hours is $642. The best round-trip flight deal from Chicago to Busan found on momondo in the last 72 hours is $962.
The fastest flight from Chicago to Busan takes 18h 35m
There are no direct flights from Chicago to Busan. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Busan Gimhae Airport.
There is 1 airport near Busan: Busan Gimhae (PUS)
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  • How far is Chicago to Busan Gimhae by plane?

    There are 6629.3 mi between Chicago and Busan Gimhae. A reasonable flight in good conditions will take 20h 05m.

  • When did momondo last update prices for flights from Chicago to Busan Gimhae Airport?

    Prices for flights from Chicago to Busan Gimhae Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to Busan Gimhae Airport?

  • How old do you have to be to fly from Chicago to Busan Gimhae Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Busan Gimhae Airport.

  • What documentation or ID do you need to fly to Busan Gimhae Airport?

    The required travel and health documents for your Busan Gimhae Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Busan Gimhae Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Chicago to Busan?

Best airlines flying from Chicago to Busan

Compare and see reviews for airlines that fly from Chicago to Busan with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $1,782Free CancellationRating
8.4
1,121 reviews
Search Korean Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Busan?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Busan from Chicago.

Can I find flights from Chicago to Busan with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Busan from Chicago with this policy.

How can momondo help me find flights from Chicago to Busan?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Busan from Chicago.

I’m not ready to book a flight from Chicago to Busan right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Busan, momondo offers a useful price alert feature which will track prices for flights to Busan from Chicago and alert you when they change.

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