$1,342 Cheap Flights from Atlanta (ATL) to Ulsan (USN)

View $1,342 flight on Wed, Feb 11, 2026Opens in a new window

Popular airlines from Atlanta to Ulsan (USN)

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Cheap Flights from Atlanta to Ulsan (ATL-USN)

Prices were available within the past 7 days and start at $1,342 for one-way flights and $2,992 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, May 18 - Mon, Jun 15
ATL
Atlanta
USN
Ulsan
$2,992 Roundtrip, found 23 hours ago
$2,992
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Mon, May 18 from Atlanta to Ulsan, returning Mon, Jun 15, priced at $2,992 found 23 hours ago
Delta
Mon, May 18 - Tue, Jun 16
ATL
Atlanta
USN
Ulsan
$3,018 Roundtrip, found 23 hours ago
$3,018
Roundtrip
found 23 hours ago
Select Delta flight, departing Mon, May 18 from Atlanta to Ulsan, returning Tue, Jun 16, priced at $3,018 found 23 hours ago
Delta
Sun, May 24 - Mon, Jun 15
ATL
Atlanta
USN
Ulsan
$3,023 Roundtrip, found 23 hours ago
$3,023
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, May 24 from Atlanta to Ulsan, returning Mon, Jun 15, priced at $3,023 found 23 hours ago
Delta
Mon, May 18 - Sat, Jun 20
ATL
Atlanta
USN
Ulsan
$3,068 Roundtrip, found 23 hours ago
$3,068
Roundtrip
found 23 hours ago
Select Delta flight, departing Mon, May 18 from Atlanta to Ulsan, returning Sat, Jun 20, priced at $3,068 found 23 hours ago
Delta
Sun, May 24 - Sun, Jun 14
ATL
Atlanta
USN
Ulsan
$3,073 Roundtrip, found 23 hours ago
$3,073
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, May 24 from Atlanta to Ulsan, returning Sun, Jun 14, priced at $3,073 found 23 hours ago
Delta
Fri, May 22 - Sun, Jun 14
ATL
Atlanta
USN
Ulsan
$3,118 Roundtrip, found 23 hours ago
$3,118
Roundtrip
found 23 hours ago
Select Delta flight, departing Fri, May 22 from Atlanta to Ulsan, returning Sun, Jun 14, priced at $3,118 found 23 hours ago
Flights from Atlanta (ATL) to Ulsan (USN)
Origin airport
Hartsfield-Jackson Atlanta Intl.
Destination airport
Ulsan
Roundtrip price
$2,991
Distance
7178 mi

Atlanta to Ulsan Flights

The cheapest times to fly from Atlanta 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 Atlanta to Ulsan are during the month of May. You can find some of the cheapest flights from Atlanta to Ulsan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Atlanta to Ulsan

Sunday is one of the best days to book for cheap flights from Atlanta 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 Atlanta 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 Atlanta to Ulsan in 2026. You can also book with separate airlines for your outbound and return journeys, from $1,342 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 Atlanta 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 Atlanta 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.

 

Frequently asked questions

How much does a flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN) cost?
Get a cheap one-way flight from $1,342 or cheap return flight from $2,992 from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN)?
The cheapest month to fly from ATL to USN is May, when demand is low. Off-peak months are generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ATL to USN flight.
How many flights per day from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN)?
You'll have to book a flight with a layover if you're traveling from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from ATL to USN?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN)?
To touch down at Ulsan Airport (USN) on time, select a flight that leaves from Hartsfield-Jackson Atlanta Intl. Airport (ATL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
Is it cheaper to buy a plane ticket from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN) last-minute?
Holding off until right before your break to book a ticket from ATL to USN often results in higher prices. While you may find some last-minute deals, they're not always guaranteed. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book an ATL to USN flight and hotel package?
Compared with arranging flights and hotels separately, booking an ATL to USN flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the hassle out of travel planning. Just secure your flights and select from our extensive range of stays, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ulsan Airport (USN)?
In most cases, you can cancel or modify your ATL to USN flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.