How does KAYAK find such low prices on flights from Illinois to Busan?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Busan. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Busan?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Busan from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Busan?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Busan with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Busan?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Busan from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$856 CHEAP FLIGHTS from Illinois to Busan

PUS

KAYAK searches hundreds of travel sites at once for deals on flights to Busan

...and more

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41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$1,027

Cathay Pacific

Wed 1/28Sun 2/1

ORD - PUS • 1 stop

Cheapest one-way

$856

Multiple Airlines

Sun 12/28

ORD - PUS • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Busan!

Flight Deals

Cheap Flights from Illinois to Busan

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Busan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Illinois to Busan

Wed, Jan 28 - Sun, Feb 1

2:35 pm - 1:05 pm

ORD

PUS

31h 30m1 stop

2:05 pm - 12:55 pm

PUS

ORD

37h 50m1 stop

$1,027Cathay Pacific

Sat, Apr 11 - Sat, Apr 25

12:30 am - 6:00 pm

ORD

PUS

27h 30m1 stop

7:10 pm - 9:00 pm

PUS

ORD

39h 50m1 stop

$1,029EVA Air

Fri, Jan 30 - Fri, Feb 6

11:30 pm - 5:40 pm

ORD

PUS

27h 10m1 stop

6:55 pm - 7:35 pm

PUS

ORD

39h 40m1 stop

$1,083EVA Air

Wed, Jan 28 - Sun, Feb 1

2:35 pm - 1:05 pm

ORD

PUS

31h 30m1 stop

4:25 pm - 12:55 pm

PUS

ORD

35h 30m1 stop

$1,102Cathay Pacific

Fri, Jan 30 - Fri, Feb 6

6:35 am - 8:45 pm

STL

PUS

23h 10m2 stops

4:10 pm - 11:37 pm

PUS

STL

22h 27m2 stops

$1,113Korean Air

Tue, Jan 13 - Tue, Jan 20

11:30 pm - 5:40 pm

ORD

PUS

27h 10m1 stop

6:55 pm - 7:35 pm

PUS

ORD

39h 40m1 stop

$1,131EVA Air

Sun, Apr 12 - Sat, Apr 25

7:15 pm - 11:15 am

ORD

PUS

26h 00m2 stops

12:15 pm - 5:00 am

PUS

ORD

30h 45m2 stops

$1,166Multiple Airlines

Tue, Jan 13 - Tue, Jan 20

6:06 pm - 10:50 am

ORD

PUS

25h 44m2 stops

7:50 pm - 2:38 pm

PUS

ORD

33h 48m2 stops

$1,195Multiple Airlines

Sun, Mar 8 - Tue, Mar 10

3:54 pm - 10:50 am

ORD

PUS

28h 56m2 stops

7:50 pm - 2:11 pm

PUS

ORD

32h 21m2 stops

$1,231Multiple Airlines

Tue, Jan 13 - Tue, Jan 20

5:31 pm - 8:10 am

MDW

PUS

23h 39m2 stops

7:00 am - 12:51 pm

PUS

MDW

20h 51m2 stops

$3,165Korean Air

Useful Info

Cheapest flight	$856

Flight from Chicago to Busan

How does KAYAK find such low prices on flights from Illinois to Busan?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Busan.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Busan?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Busan from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Busan?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Busan with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Busan?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Busan from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Busan

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Busan

Busan (PUS)

PUS

$856 Find Cheap Flights from Illinois to Busan

KAYAK searches hundreds of travel sites at once for deals on flights to Busan

Everything you should know

Cheap Flights from Illinois to Busan

Recent round-trip flight deals from Illinois to Busan

Recent one-way flight deals from Illinois to Busan

Good to know

FAQs for booking flights from Illinois to Busan

How does KAYAK find such low prices on flights from Illinois to Busan?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Busan.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Busan?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Busan from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Busan?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Busan with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Busan?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Busan from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Busan

Information on the airport you'll fly into in Busan

Cabin class types available on flights to Illinois

Complete your trip to Busan with a hotel stay or car rental

Find direct flights for Busan

Flights to other popular destinations

Flights from domestic origins to Busan

Choose which airport to fly into in Busan

Find deals for your return flight