$99 Cheap Flights from Ulsan (USN) to Seoul (GMP)

View $99 flight on Wed, May 21, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

Cheap Flights from Ulsan to Seoul (USN-GMP)

Prices were available within the past 7 days and start at $99 for one-way flights and $198 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Tue, Jun 17 - Sun, Jun 22
USN
Ulsan
GMP
Seoul
$198 Roundtrip, found 6 hours ago
$198
Roundtrip
found 6 hours ago
Select Korean Air flight, departing Tue, Jun 17 from Ulsan to Seoul, returning Sun, Jun 22, priced at $198 found 6 hours ago

Frequently asked questions

How much does a flight from Ulsan Airport (USN) to Gimpo Intl. Airport (GMP) cost?
Discover the latest flight deals from USN to GMP by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from USN to GMP?
The cheapest flights from USN to GMP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 USN to GMP?
Book a flight from USN to GMP with Korean Air. This carrier currently has the cheapest one-way ticket for this route, starting at $99. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from USN on July 17 2025. Prices were last updated on April 24 2025 and have not changed since.
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.
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