$356 Cheap Flights to Incheon International
One-way
Departing from
United States
Going to
Incheon International
Seoul (ICN)
South Korea • June, 2026
98% AI deal score
$1,300 $421
Seoul (ICN)
South Korea • June, 2026
98% AI deal score
$1,300 $423
Seoul (ICN)
South Korea • May, 2026
97% AI deal score
$1,195 $422
Seoul (ICN)
South Korea • May, 2026
97% AI deal score
$1,195 $421
Top Cheap Flight Deals from United States to Incheon International
Recent round-trip flight deals to Incheon International
Fri, Mar 6 - Fri, Mar 27
Cheapest
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$167
Sat, Mar 7 - Fri, Mar 27
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$168
Sat, Mar 7 - Sat, Mar 28
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$168
Fri, Mar 6 - Sat, Mar 28
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$168
Thu, Mar 5 - Mon, Mar 9
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$173
Thu, Mar 5 - Sun, Mar 15
Hagåtña (GUM) - Seoul (ICN)
Jin Air airlines • Direct
Seoul (ICN) - Hagåtña (GUM)
Jin Air airlines • Direct
$173
The cheapest time to fly to Incheon International
Facts About Flights from United States to Seoul
To help you plan your journey, here are some quick Seoul flight facts and tips.
Seoul airports
Incheon International Airport (ICN) and Gimpo International Airport (GMP) both serve the Seoul Metropolitan Area, offering distinct roles in South Korea's air travel landscape. ICN is the primary international gateway, handling the vast majority of international flights to and from South Korea. It's known for its modern facilities, numerous amenities, and connections to destinations worldwide. Gimpo, while formerly the main international airport, now primarily handles domestic flights and a limited number of international routes, mainly to destinations in Asia. It offers a more convenient option for travelers focusing on regional travel within Asia or domestic travel within South Korea, due to its closer proximity to Seoul compared to Incheon. Choosing between the two depends on your destination: international travelers will likely arrive/depart from ICN, while those flying within Korea or to select Asian cities may find GMP more suitable.
Pro tip: search “Seoul (Any)” to see fares to all Seoul airports – sometimes one is cheaper than the others on your dates.
Insights for flights to Incheon International
Cheapest airport
Narita (NRT)
Looking for the ultimate gateway to Incheon? Narita International Airport (NRT) might just be your golden ticket! While technically in Japan, flying into Narita can sometimes be lighter on your wallet, especially if you're all about that budget-travel life. Plus, who wouldn't want a cheeky side trip to Tokyo?
Nonstop vs. 1-stop
70+ cities
As a major hub in Asia, Incheon International Airport (ICN) connects over 70 cities worldwide, making it a popular choice for travelers. Some frequently flown routes include connections to major cities in Asia and North America.
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, Sun
Based on the data, Thursday and Tuesday are the best days to find cheap flight deals from Incheon International Airport. Wednesday has the least amount of deals, so you may want to avoid planning your trips then.
Avg. deal survival time
8.2 hours
Deals from Incheon International Airport last 8.2 hours on average. It is important to book quickly.
Rare deal frequency
5 deals
We found 5 rare deals for flights to Incheon International Airport in the past month. These rare deals had an AI Deal Score of 90+ and usually consisted of mistake fares, special promotions, or ultra-discounts.
Average price drop
-74%
On average, flights to Incheon International Airport experience a price decrease of 74.1%. This means you have a high chance of finding significant savings on flights to this destination if you track prices.
Next 4 weeks: deal forecast
Incheon International Airport Flight Forecast
The forecast for Incheon International Airport next month shows stable flight prices with a slight increase expected due to seasonal travel. No significant price drops are anticipated at this time.
Top 5 biggest price drops (last 3 months)
Found on January 2
Mexico City - ICN
$14,575 → $505
97%
Found on January 3
Kobe - ICN
$840 → $107
87%
Found on January 7
Takamatsu - ICN
$950 → $123
87%
Found on January 5
Melbourne - ICN
$2,035 → $291
86%
Found on January 4
Hakodate - ICN
$680 → $124
82%
Check these nearby airports too
Looking for more options? These airports near ICN sometimes drop rare deals too:
Cheongju International (CJJ)
~8 rare deals/month
Daegu International (TAE)
~8 rare deals/month
Yantai Penglai (YNT)
~5 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 Incheon International
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to Incheon International:
Cheapest month
November
Cheapest month
November emerges as the champion of affordability for flights to Seoul! The crisp air and stunning foliage create a picturesque backdrop for exploring ancient palaces and bustling markets. Plus, you'll dodge the peak season crowds, making your Seoul adventure both budget-friendly and blissfully serene.
Best day to book
Tuesday
Best day to book
Unlock the best deals by setting your sights on booking flights to Seoul on a Tuesday. Airlines often release new deals early in the week, making Tuesday the prime day to snag those discounts. Beat the weekend rush and mid-week price hikes by securing your tickets on this strategic day.
Cheapest days to fly
Wednesday
Cheapest days to fly
Fly smarter, not harder, by choosing Wednesday for your departure to Seoul. Mid-week flights tend to be less expensive as business travelers typically fly on Mondays and Fridays. Embrace the savvy traveler within and enjoy significant savings by flying on a Wednesday!
Advance booking sweet spot
2 months
Advance booking sweet spot
Aim to book your Seoul flights roughly two months in advance to hit the sweet spot. This timeframe often yields the perfect balance between availability and price. Avoid the last-minute surge and early bird extremes by planning ahead and booking around this ideal window.
Seoul Airports & Ground Transportation
One big question for travelers is which Seoul airport to fly into. Here’s a quick guide to Seoul’s airports and how to get to the city from each:
Incheon International Airport (ICN)
Incheon International Airport (ICN) is South Korea's largest airport and one of the busiest in the world, serving as a major gateway to Seoul. It's known for its impressive architecture, super efficient operations, and a wide array of amenities, including shopping, dining, and cultural experiences. The airport is located on an island west of Seoul, but is very well-connected to the city center via AREX express train and numerous bus lines, making the journey relatively quick and convenient. The airport boasts many gardens and indoor spaces, making it a comfortable place to spend your time before flying! Be sure to check out the Korean Cultural Street for a glimpse of traditional crafts.
Tip: Utilize the AREX express train for a fast and reliable connection to Seoul Station.
Gimpo International Airport (GMP)
Gimpo International Airport (GMP) was once the primary international airport for Seoul, but now mainly handles domestic flights and limited international routes, primarily to Japan, China, and Taiwan. It is located much closer to Seoul than Incheon, making it a convenient option for travelers flying domestically within Korea or to those nearby countries. Despite being smaller than Incheon, Gimpo offers a good range of services and facilities. Getting to downtown Seoul is a breeze with multiple subway lines and bus routes connecting the airport to various parts of the city. Be sure to check out the observation deck for great views of planes taking off and landing!
What to Do in Seoul
Seoul isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in Seoul, organized by interest:
Sightseeing & landmarks
Seoul is a city steeped in history and brimming with modern marvels! Must-see landmarks include the majestic Gyeongbokgung Palace, the serene Bukchon Hanok Village, and the iconic N Seoul Tower for panoramic city views that will leave you breathless.
Arts & culture
Immerse yourself in Seoul's vibrant arts scene by visiting world-class museums like the National Museum of Korea or exploring the trendy galleries of Insadong. For a taste of traditional Korean culture, catch a captivating performance of Nanta, a non-verbal comedy show, or explore a traditional tea house!
Food & nightlife
Get ready for a culinary adventure in Seoul, from sizzling Korean BBQ and spicy street food to trendy cafes and Michelin-starred restaurants! As the sun sets, experience Seoul's electric nightlife in the bustling districts of Hongdae and Itaewon, known for their vibrant bars, clubs, and entertainment.
Shopping & fashion
Shopaholics, rejoice! Seoul is a fashion paradise, offering everything from high-end designer boutiques in Gangnam to trendy street style in Myeongdong. Don't forget to explore the unique shops and vintage finds in the quirky neighborhood of Hongdae.
Nearby getaways
Escape the city buzz and discover the natural beauty surrounding Seoul with a day trip to the stunning Bukhansan National Park for hiking or the picturesque Garden of Morning Calm. For a dose of history, explore the UNESCO World Heritage Site of Suwon Hwaseong Fortress.
Events in Seoul This Month
Frequently Asked Questions About Flights to Incheon International
Pro Tips for Finding Cheap Flights to Incheon International
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on Incheon International flights:
Behold the Power of Incognito!: Search for flights in incognito mode or a private browser. Airlines sometimes track your searches and may increase prices if they see you've searched for the same flight multiple times. Outsmart them with a fresh, untracked search!
Consider flying on Tuesdays, Wednesdays, or Saturdays. These days are typically less busy, and airlines often offer lower fares to fill those seats. Be flexible with your travel dates for sweet savings!
