ORD - PUS

$629 Find Cheap Flights from Chicago to Busan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Busan departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Busan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Busan, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Chicago to Busan (ORD-PUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago 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.

Recent round-trip flight deals from Chicago to Busan

Mon, Jun 30 - Mon, Sep 29
 Logo
7:42 am - 8:30 amORD-PUS
34h 48m3 stops
 Logo
7:35 am - 11:36 amPUS-ORD
42h 01m2 stops
$1,230
Find Deal
Mon, Jun 30 - Mon, Sep 29
 Logo
7:42 am - 10:15 amORD-PUS
36h 33m3 stops
 Logo
7:35 am - 10:28 pmPUS-ORD
28h 53m3 stops
$1,277
Find Deal
Wed, Jul 9 - Wed, Jul 16
 Logo
6:40 am - 10:10 pmORD-PUS
25h 30m2 stops
 Logo
7:45 am - 6:03 amPUS-ORD
36h 18m3 stops
$1,281
Find Deal
Wed, Jul 9 - Wed, Jul 16
 Logo
6:40 am - 8:05 amORD-PUS
35h 25m3 stops
 Logo
7:45 am - 6:03 amPUS-ORD
36h 18m3 stops
$1,307
Find Deal
Tue, Sep 23 - Tue, Oct 21
Cathay Pacific Logo
4:00 pm - 1:35 pmORD-PUS
31h 35m1 stop
Cathay Pacific Logo
7:45 am - 2:25 pmPUS-ORD
20h 40m1 stop
$1,333Cathay Pacific
Find Deal
Wed, Jul 9 - Wed, Jul 16
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
$1,624Cathay Pacific
Find Deal
Fri, Jul 25 - Fri, Aug 1
China Airlines Logo
7:18 pm - 11:15 amORD-PUS
25h 57m2 stops
China Airlines Logo
12:15 pm - 6:18 pmPUS-ORD
44h 03m2 stops
$1,843China Airlines
Find Deal
Tue, Sep 23 - Tue, Oct 21
Korean Air Logo
8:55 am - 7:35 pmORD-PUS
20h 40m2 stops
Korean Air Logo
8:05 am - 9:30 amPUS-ORD
15h 25m1 stop
$1,909Korean Air
Find Deal
Tue, Sep 23 - Tue, Oct 21
Korean Air Logo
8:55 am - 7:35 pmORD-PUS
20h 40m2 stops
Korean Air Logo
8:05 am - 12:39 pmPUS-ORD
18h 34m2 stops
$1,920Korean Air
Find Deal
Sat, Jul 26 - Sat, Aug 2
Delta Logo
6:00 am - 7:35 pmORD-PUS
23h 35m2 stops
Delta Logo
8:45 am - 12:09 amPUS-ORD
29h 24m2 stops
$2,159Delta
Find Deal
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KAYAK's insights & trends for Chicago to Busan flights

Get data-powered insights and trends into flights from Chicago to Busan to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Chicago to Busan?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Chicago to Busan were found on Cathay Pacific ($1,333) and China Airlines ($1,843).

Good to know

Low seasonApril
High seasonDecember
Cheapest flight$629
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 70% increase in price.
Flight from Chicago to Busan

When to book flights from Chicago to Busan

Are your dates flexible? Find out the best times to travel from Chicago to Busan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Busan flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Busan?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Busan was $629 for a one-way ticket and $1,230 for a round-trip.

  • Do I need a passport to fly between Chicago and Busan?

    Yes

  • Which airports will I be using when flying from Chicago to Busan?

    When flying out of Chicago you will be using Chicago O'Hare Intl. You will be landing at Busan, also known as Busan Gimhae.

  • Which aircraft models fly most regularly from Chicago to Busan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to Busan?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Chicago and Busan, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Chicago 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 Chicago to Busan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Busan from Chicago 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 Chicago 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 Chicago with another airline. Booking your flights between Chicago and PUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago 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 Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Chicago to Busan

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Busan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Busan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1088 reviews
8.5Boarding
8.3Comfort
8.2Entertainment
8.1Food
8.7Crew
Airline reviews

Korean air has a little bit more seating space than Asiana air.

8.0 ExcellentAnonymous, Jun 2025CRK - ICN
Read more Korean Air reviews

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

The food on this flight from NRT to ICN was average. The staff were very friendly, but the flight took about 60 minutes longer than it should have because the pilot was only flying at 330mph instead of 500-550. Not sure what the reason is for that, but it meant for a much longer flight.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Food choice could be better, plus the crew can walk around and offer snacks and drinks. Also the air-conditioning onboard blows high speed, and very cold makes the trip uncomfortable.

long flights are difficult but the crew and amenities made it a very good experience

Everything you need to know for your flight from Chicago to Busan

Information on your arrival and departure airports

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