$264 Cheap Flights from Seoul (ICN) to Ulsan (USN)

View $264 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Ulsan (USN)

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Cheap Flights from Seoul to Ulsan (ICN-USN)

Prices were available within the past 7 days and start at $264 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to Ulsan Airport (USN) cost?
Lock in a cheap one-way flight from $264 or cheap return flight from Incheon Intl. Airport (ICN) to Ulsan Airport (USN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Ulsan Airport (USN)?
is the least expensive month to fly from ICN to USN. Timing your trip outside of the busy season is often the key to finding better fares.
Which airlines fly direct from Incheon Intl. Airport (ICN) to Ulsan Airport (USN)?
Although Seoul (ICN-Incheon Intl.) doesn't offer any direct flights to Ulsan Airport (USN), other airports have nonstop options. Flying from Gimpo Intl. Airport (GMP) will get you to Ulsan without any detours.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Ulsan Airport (USN)?
To find the cheapest airline that'll fly you from ICN to USN, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Incheon Intl. Airport (ICN) to Ulsan Airport (USN)?
Direct flights from Incheon Intl. Airport (ICN) to Ulsan Airport (USN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ICN to USN?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Incheon Intl. Airport (ICN) to Ulsan Airport (USN)?
Choose a flight from Incheon Intl. Airport (ICN) to Ulsan Airport (USN) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ulsan from Incheon Intl. Airport (ICN)?
Hop on a direct flight from Incheon Intl. Airport (ICN) to Ulsan and touch down at Gimhae Airport (PUS). Another point of entry into this destination is Daegu Intl. Airport (TAE).
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Ulsan Airport (USN) last-minute?
Last-minute fares from ICN to USN are generally more expensive. To lock in the lowest rates, start searching for flights early. That being said, if you can play around with your travel dates, it's possible to score a cheap ticket right before your journey.
Is it cheaper to book an ICN to USN flight and hotel package?
You'll typically save money by booking an ICN to USN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your ideal flights and accommodations, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Ulsan Airport (USN)?
Usually, it's possible to reschedule or cancel your ICN to USN flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Incheon Intl.
Destination airport
Ulsan
Distance
206 mi

Book with confidence

Book with confidence

Seoul to Ulsan Flights

The cheapest times to fly from Seoul to Ulsan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Ulsan are during the month of . You can find some of the cheapest flights from Seoul to Ulsan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Ulsan

Sunday is one of the best days to book for cheap flights from Seoul to Ulsan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seoul to Ulsan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Ulsan in 2025. You can also book with separate airlines for your outbound and return journeys, from $264 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Ulsan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Ulsan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seoul to Ulsan Flights

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*Available to One Key members.