$343 Cheap Flights to South Korea
One-way
Departing from
United States
Going to
South Korea
Seoul (ICN)
South Korea • May, 2026
96% AI deal score
$1,500 $385
Busan (PUS)
South Korea • May, 2026
88% AI deal score
$915 $460
Jeju City (CJU)
South Korea • June, 2026
81% AI deal score
$910 $374
Top Cheap Flight Deals from United States to South Korea
Recent round-trip flight deals to South Korea
Sat, Mar 7 - Sun, Mar 8
Cheapest
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$157
Sat, Mar 7 - Tue, Mar 10
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$157
Wed, Mar 25 - Mon, Mar 30
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$162
Mon, Mar 9 - Tue, Mar 10
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$162
Tue, Mar 24 - Mon, Mar 30
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$163
Wed, Mar 25 - Tue, Mar 31
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$163
The cheapest time to fly to South Korea
Ready to jet to South Korea on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Facts About Flights from United States to South Korea
To help you plan your journey, here are some quick South Korea flight facts and tips.
South Korea airports
South Korea boasts a modern and efficient network of airports connecting the nation to the world. Among the most prominent are Incheon International Airport (ICN), a global hub known for its state-of-the-art facilities and numerous international connections. Jeju International Airport (CJU) serves the popular tourist destination of Jeju Island, offering both domestic and international flights. Gimhae International Airport (PUS) is a key gateway to the southeastern region of the country, particularly the bustling city of Busan, providing a mix of domestic and international routes. Finally, Gimpo International Airport (GMP), while now primarily focused on domestic flights and some regional international routes, still plays a vital role in connecting Seoul to other parts of Korea. These airports collectively ensure convenient access to South Korea's diverse regions and attractions.
Incheon International (ICN)
Seoul, South Korea
Jeju International (CJU)
Jeju City, South Korea
Gimhae International (PUS)
Busan, South Korea
Gimpo International (GMP)
Seoul, South Korea
Pro tip: search “South Korea (Any)” to see fares to all South Korea airports – sometimes one is cheaper than the others on your dates.
Insights for flights to South Korea
Cheapest airport
Cheongju (CJJ)
Looking for a steal to South Korea? Cheongju International Airport (CJJ) might just be your golden ticket! It's compact and easy to navigate, offering a gateway to the heart of the country without the Seoul-sized price tag. Plus, it is near many of Korea's top attractions.
Nonstop vs. 1-stop
20+ cities
Gimpo International Airport in Seoul is a secondary hub that offers a range of routes, with popular connections to cities within South Korea like Busan and Jeju.
ICN Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
ICN airport insights
Best days to catch a deal
Wed, Tue
Based on the data, Saturday and Sunday appear to offer the best chances for finding cheap flight deals from Incheon International Airport. Saturday has the lowest count at 32, closely followed by Sunday at 40, indicating these days had the most reported cheap deals.
Avg. deal survival time
12.2 hours
Deals from Incheon International Airport survive for 12.2 hours on average. Make sure to book quickly, because these deals don't last long!
Rare deal frequency
17 deals
In the past month, our system identified 17 rare deals for flights from Incheon International Airport. These rare deals achieved an AI Deal Score of 90+, indicating they were likely mistake fares, special promotions, or ultra-discounts.
Average price drop
-70%
On average, prices for flights from Incheon International Airport drop by a significant 70.1%. This indicates a high potential for travelers to save money on flights originating from this airport.
Next 4 weeks: deal forecast
Incheon International Airport Next Month Forecast
The forecast for Incheon International Airport next month, starting April 2026, indicates stable flight prices overall. There are no significant price drops or increases expected based on current trends.
Top 5 biggest price drops (last 3 months)
Found on March 9
Takamatsu - ICN
$950 → $48
95%
Found on March 10
Chiang Rai Province - ICN
$578 → $46
92%
Found on March 9
Pattaya - ICN
$1,000 → $104
90%
Found on March 6
London - ICN
$8,150 → $1,061
87%
Found on March 5
Santiago de Querétaro - ICN
$4,700 → $705
85%
Check these nearby airports too
Looking for more options? These airports near ICN sometimes drop rare deals too:
Cheongju International (CJJ)
~14 rare deals/month
Daegu International (TAE)
~8 rare deals/month
Tianjin Binhai International (TSN)
~6 rare deals/month
Yantai Penglai (YNT)
~6 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially CJJ and TAE for long-haul deal surprises.
When Is the Best Time to Fly from United States to South Korea
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to South Korea:
Cheapest month
January
Cheapest month
January is typically the cheapest month to fly to Seoul. While it's the coldest month, the city transforms into a winter wonderland, with fewer crowds at popular attractions. Plus, you'll find great deals on flights and accommodations, making it a budget-friendly time to explore the city's rich culture and delicious cuisine.
Best day to book
Tuesday
Best day to book
Tuesday is often the sweet spot for booking flights to Seoul. Airlines tend to release new deals early in the week to stir demand. Keep an eye out for flash sales and limited-time offers that could save you big bucks on your trip to the Land of the Morning Calm.
Cheapest days to fly
Wednesday
Cheapest days to fly
Flying on a Wednesday can save you a pretty penny on your trip to Seoul. Mid-week flights are generally less crowded and cheaper than weekend flights. You will have more wiggle room to enjoy all the sights and sounds of this dynamic city without breaking the bank.
Advance booking sweet spot
2 months
Advance booking sweet spot
Booking about two months in advance hits that sweet spot for flights to Seoul. This timeframe gives you the best chance of snagging lower fares before they start to climb closer to your travel date. Keep an eye on prices and be ready to pounce when you see a deal you like!
South Korea Airports & Ground Transportation
One big question for travelers is which South Korea airport to fly into. Here’s a quick guide to South Korea’s airports and how to get to the city from each:
Incheon International Airport (ICN)
Hey there, jet-setter! Incheon International Airport, also known as Seoul–Incheon International Airport, is the largest airport in South Korea and one of the busiest in the world! This airport is the main hub for Korean Air, Asiana Airlines, and Jeju Air. You can enjoy a wide array of amenities such as spas, ice skating rinks, movie theaters, and even gardens! Getting to Seoul from ICN is a breeze thanks to the Airport Railroad (AREX) and numerous bus lines. Be sure to explore all the cultural experiences Incheon Airport has to offer; you won't be disappointed!
Tip: Don't forget to check out the cultural performances while you're waiting for your flight!
Gimpo International Airport (GMP)
Hello, traveler! Gimpo International Airport was once the primary airport for Seoul, but now it mainly handles domestic flights and limited international routes. Gimpo Airport is conveniently located closer to Seoul than Incheon, making it a popular choice for domestic travel. You'll find plenty of shops, restaurants, and lounges to relax in before your flight. Getting to and from Gimpo is super easy, with multiple subway lines and bus routes connecting it to various parts of Seoul. Prepare for a smooth and efficient travel experience!
What to Do in South Korea
South Korea isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in South Korea, organized by interest:
Sightseeing & landmarks
Seoul is brimming with iconic landmarks! Visit the majestic Gyeongbokgung Palace, wander through the historic Bukchon Hanok Village, and ascend the N Seoul Tower for panoramic city views. Each spot offers a unique glimpse into Korea's rich heritage and modern charm.
Arts & culture
Immerse yourself in Seoul's vibrant arts scene by exploring the numerous museums and galleries. The National Museum of Korea and Leeum, Samsung Museum of Art are treasure troves of history and contemporary art. Don't miss traditional performances and street art in the Hongdae area for a modern twist!
Food & nightlife
Get ready for a culinary adventure in Seoul! From sizzling Korean BBQ and spicy street food in Myeongdong to trendy cafes in Gangnam, there's something for every palate. As night falls, explore the lively bars and clubs in Itaewon or enjoy a serene evening along the Han River.
Shopping & fashion
Shopaholics, rejoice! Seoul is a fashion paradise with bustling markets and upscale boutiques. Dive into the trendy clothes and cosmetics in Myeongdong, explore the unique styles in Hongdae, or splurge on luxury brands in Gangnam. Get ready to revamp your wardrobe!
Nearby getaways
Escape the city bustle with a short trip to some nearby gems. Explore the serene beauty of the Garden of Morning Calm, hike in the picturesque Bukhansan National Park, or visit the historic city of Suwon with its impressive fortress. A quick getaway can offer a refreshing change of scenery!
Events in South Korea This Month
seoul living design fair 2026
In 2026, an estimated 286,300 attendees will generate $59,532,451 in spending at the event, which encompasses a wide array of real-world activities such as concerts, sports, and festivals, promising a vibrant and engaging experience for all.
Frequently Asked Questions About Flights to South Korea
Pro Tips for Finding Cheap Flights to South Korea
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on South Korea flights:
Be Flexible with Your Dates: Flying mid-week or during the shoulder season (spring/fall) can save you a bundle. Avoid peak holiday times when everyone else is trying to go!
Consider Alternative Airports: Sometimes flying into a smaller airport near Seoul can be significantly cheaper than landing directly at Incheon. Just make sure you factor in the cost and time to get to your final destination!
