Title: Cheap Flights from Seoul to Ulsan (ICN to USN) - Expedia.co.uk ![A colourful sunset over the city of Ulsan](https://images.trvl-media.com/place/3658/c1f9ee5a-e337-4dd4-80e1-8e16c238c00a.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3658/c1f9ee5a-e337-4dd4-80e1-8e16c238c00a.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Seoul (ICN) to Ulsan (USN) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Incheon Intl. Airport (ICN) to Ulsan (USN) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:usn,departure:18/10/2025TANYT&leg2=from:usn,to:icn,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![easyJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_U2.svg) easyJet [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:usn,departure:18/10/2025TANYT&leg2=from:usn,to:icn,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"U2"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:usn,departure:18/10/2025TANYT&leg2=from:usn,to:icn,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Ryanair](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_FR.svg) Ryanair [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:usn,departure:18/10/2025TANYT&leg2=from:usn,to:icn,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"FR"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:usn,departure:18/10/2025TANYT&leg2=from:usn,to:icn,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Jet2](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LS.svg) Jet2 [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:usn,departure:18/10/2025TANYT&leg2=from:usn,to:icn,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LS"}}]) - ![Swiss International Air Lines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.co.uk/Flights-Search?leg1=from:icn,to:usn,departure:18/10/2025TANYT&leg2=from:usn,to:icn,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Frequently asked questions ### How much is a flight from Seoul–Incheon Intl. Airport to Ulsan Airport (USN)? > Start packing your bags, because round-trip journeys between Seoul–Incheon Intl. Airport and Ulsan Airport start from . That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to get the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from ICN to Ulsan Airport? > Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from ICN to USN that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seoul–Incheon Intl. Airport to Ulsan Airport (USN) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from ICN to Ulsan Airport (USN)? > With a flight distance of 330 kilometres, it's just a short hop from Incheon Intl. Airport (ICN) to Ulsan Airport. It might be a quick flight, but it's still worth bringing along something to keep you busy on board. ### Which airlines fly direct from Seoul–Incheon Intl. Airport to Ulsan Airport (USN)? > Direct flights aren't available, so you'll have to make at least one stop between Incheon Intl. Airport (ICN) and Ulsan Airport (USN). Use the layover time to stretch your legs and grab a bite to eat. ### Are ICN to Ulsan Airport (USN) flight tickets cheaper when they're purchased at the last minute? > Booking your trip from Incheon Airport to USN at the last minute could be your ticket to a fantastic deal. However, it could end up costing a good deal more! If you'd rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back often as deals are updated on Expedia all the time. ## Travel information | Origin airport | Incheon Intl. | | --- | --- | | Destination airport | Ulsan | | Distance | 331 km | ## Book with confidence ### Compare flights from Seoul to Ulsan easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seoul to Ulsan. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Ulsan in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Incheon Intl. to Ulsan.   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Incheon Intl. (ICN) to Ulsan (USN) The easiest way to view the best deals on flights from Seoul to Ulsan today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Incheon Intl. to Ulsan start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Seoul and Ulsan - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Seoul to Ulsan flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Incheon Intl. to Ulsan for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. 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