$98 Cheap Flights from Ulsan (USN) to Seoul (GMP)

View $98 flight on Sat, Dec 27, 2025Opens in a new window

Popular airlines from Ulsan (USN) to Gimpo Intl. Airport (GMP)

Cheap Flights from Ulsan to Seoul (USN-GMP)

Prices were available within the past 7 days and start at $98 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Sun, Dec 14 - Sun, Dec 21
USN
Ulsan
GMP
Seoul
$197 Roundtrip, found 5 days ago
$197
Roundtrip
found 5 days ago
Select Korean Air flight, departing Sun, Dec 14 from Ulsan to Seoul, returning Sun, Dec 21, priced at $197 found 5 days ago
Korean Air
Fri, Jan 23 - Sat, Jan 31
USN
Ulsan
GMP
Seoul
$198 Roundtrip, found 2 days ago
$198
Roundtrip
found 2 days ago
Select Korean Air flight, departing Fri, Jan 23 from Ulsan to Seoul, returning Sat, Jan 31, priced at $198 found 2 days ago

Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gimpo Intl. GMP. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $197
GMP
Gimpo Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $197

Frequently asked questions

How much does a flight from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP) cost?
Snag a cheap one-way flight from $98 or cheap return flight from $197 from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP) 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 Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
The cheapest month to fly from USN to GMP is December, when demand is low. Off-peak season is usually when airlines offer better prices between these airports.
Which airlines fly direct from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
When flying out of Ulsan Airport (USN), you can take a direct flight to Gimpo Intl. Airport (GMP) with Korean Air.
What is the cheapest airline that flies from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
While prices may vary depending on your travel dates, Jin Air and Korean Air are go-to choices for flights between Ulsan Airport (USN) and Gimpo Intl. Airport (GMP). You can also compare carriers on Expedia and use the "Sort by" filter to find the cheapest ticket for your USN to GMP flight.
How many flights per day from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
When departing from Ulsan Airport (USN), you can take your pick from an average of 3 daily direct flights to Gimpo Intl. Airport (GMP).
What are the most popular departure times for flights from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
Flights between USN and GMP are their busiest at 9 AM. If you're after a more relaxed trip and potentially cheaper tickets, look for a time when demand is lower.
What day of the week has the most flights from USN to GMP?
Travel on a Saturday if you're looking for the best choice of flights from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP).
What is the earliest flight from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
The earliest flight out of Ulsan Airport (USN) is at around 9:30AM UTC+9. Board this flight and you'll arrive at Gimpo Intl. Airport (GMP) at approximately 10:30AM UTC+9. The total travel time is 1h.
How long does it take to fly from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
Flights from USN to GMP have an average travel time of 1 hour. The total distance between the two airports is 200 mi.
What airline has the least delays from USN to GMP?
With 94% of journeys typically arriving on schedule, Korean Air has the best on-time performance for direct flights from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP). To check your flight status and get notified about any changes, simply head to the Expedia App.
What is the best time to fly from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
To avoid possible delays on the Ulsan Airport (USN) to Gimpo Intl. Airport (GMP) route, aim to fly before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Seoul from Ulsan Airport (USN)?
Browse your flight options from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP). This is the only Seoul airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP) last-minute?
Booking your ticket from USN to GMP right before your journey is typically more expensive. However, if you're flexible with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an USN to GMP flight and hotel package?
Securing an USN to GMP flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our wide range of stays and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP)?
Generally, it's possible to reschedule or cancel your USN to GMP flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

0
Origin airport
Ulsan
Destination airport
Gimpo Intl.
Roundtrip price
$197
Distance
196 mi

Book with confidence

Ulsan to Seoul Flights

The cheapest times to fly from Ulsan to Seoul

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 Ulsan to Seoul are during the month of December. You can find some of the cheapest flights from Ulsan to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ulsan to Seoul

Sunday is one of the best days to book for cheap flights from Ulsan to Seoul: 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 Ulsan to Seoul

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 Ulsan to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $98 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 Ulsan to Seoul 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 Ulsan to Seoul 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.

 

Ulsan to Seoul Flights

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*Available to One Key members.