- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 40% on select hotels after you book a flight*
Plan, book, fly with confidence
Cheap Flights from Chicago to Ulsan (CHI-PUS)
Prices were available within the past 7 days and start at ₩996,700 for one-way flights and ₩1,797,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
![Cathay Pacific](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif)
Sun, Sep 22 - Mon, Sep 30
ORD
Chicago
PUS
Busan
₩1,797,400 Roundtrip, found 4 days ago
₩1,797,400
Roundtrip
found 4 days ago
![Alaska Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif)
Sun, Sep 22 - Mon, Sep 30
ORD
Chicago
PUS
Busan
₩1,955,800 Roundtrip, found 4 days ago
₩1,955,800
Roundtrip
found 4 days ago
![Cathay Pacific](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif)
Fri, Mar 21 - Tue, Apr 1
ORD
Chicago
PUS
Busan
₩2,164,200 Roundtrip, found 1 day ago
₩2,164,200
Roundtrip
found 1 day ago
![American Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif)
Sun, Sep 22 - Mon, Sep 30
ORD
Chicago
PUS
Busan
₩2,270,600 Roundtrip, found 4 days ago
₩2,270,600
Roundtrip
found 4 days ago
![Alaska Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif)
Sun, Sep 22 - Mon, Sep 30
ORD
Chicago
PUS
Busan
₩2,402,100 Roundtrip, found 4 days ago
₩2,402,100
Roundtrip
found 4 days ago
![Cathay Pacific](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif)
Sun, Sep 22 - Mon, Sep 30
ORD
Chicago
PUS
Busan
₩2,425,600 Roundtrip, found 4 days ago
₩2,425,600
Roundtrip
found 4 days ago
Nearby Cities
Expedia's Latest Trends
Flights
Flights from Winchester to AspenFlights from Incheon to LahoreFlights from Incheon to NaritaFlights from Busan to Siem ReapFlights from New Haven to Palo AltoFlights from Khâi-Ma to AlmatyFlights from Seoul to MalayFlights from Merritt Island to West Palm BeachFlights from Incheon to Siem ReapFlights from Seoul to KelownaFlights from Tainan to MykonosFlights from Tanjung Pinang to Santiago de CompostelaFlights from Incheon to ChengduFlights from Leeds to NantucketFlights from Incheon to BusanFlights from Flint to Boca RatonFlights from Incheon (ICN) to Miami (MIA)Flights from Milford to Aspen
*Available to Expedia members.