A traditional Korean pavilion with a tiled roof, surrounded by stone walls and trees with autumn foliage.

$67 Cheap Flights to Seosan

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Popular airlines to Seosan

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How much is the cheapest flight to Seosan?

Prices were available within the past 7 days and start at $67 for one-way flights and $134 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
ZIPAIR
T'Way Air
Hahn Air Systems
Korean Air

Alternative airports near Seosan

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

Find the cheapest month to fly from Columbus (CMH) to Seoul (ICN)

From $1,016 - $1,332 per traveler.

What you need to know for your flight to Seosan

Flights to Seosan at a glance

Traveling to Seosan is easy; you can choose from various airlines, whether you're looking for full-service options or cheap flights to Seosan. Compare travel times and select the best itinerary that aligns with your budget and plans to explore the city's renowned attractions and neighborhoods.

  • Major airports near Seosan: Incheon International Airport (ICN), Gimpo International Airport (GMP)
  • Closest (typical) airport to Seosan: Incheon International Airport, ICN (around 45 miles)
  • Flights per week: 2,000+ flights arriving across Seosan airports
  • Number of airlines that fly to Seosan: around 65+ carriers

Popular airports near Seosan

Seosan is a charming city perfect for outdoor adventures and family-friendly beach vacations. Travelers are drawn to its blend of culture, business opportunities, and coastal relaxation. Accessing Seosan is convenient, with two major airports, including Incheon International Airport, located near Seoul.

  • Incheon International Airport (ICN): Situated approximately 45 miles from Seosan, this airport is a major hub for international travel, offering connections to over 220 destinations across the globe. Passengers have the option to upgrade their experience with business class, premium economy, and first class seati ng for enhanced comfort, depending on the airline and route. Notable airlines operating here include Korean Air, Asiana Airlines, and Air Premia.
  • Gimpo International Airport (GMP): Located around 55 miles from Seosan, Gimpo provides both domestic and international flights, linking to approximately 3 domestic cities and 9 international locales. Travelers can opt for an upgrade to business class for additional comfort, based on the airline and route. Popular carriers at this airport include Korean Air, Asiana Airlines, and Japan Airlines.

Top routes to Seosan

  • Los Angeles (LAX) to Seosan (GMP/ICN), with one-way flights starting at around $410
  • Tokyo (HND/NRT) to Seosan (GMP/ICN), with one-way fares starting at around $95
  • San Francisco (SFO) to Seosan (ICN), with one-way tickets available from around $330
  • Osaka (KIX) to Seosan (GMP/ICN), with one-way tickets available from around $85
  • Seattle (SEA) to Seosan (ICN), with one-way fares starting at around $420

Cheapest routes to Seosan

  • Jeju (CJU) to Seosan (GMP), with low-cost one-way tickets from around $30
  • Busan (PUS) to Seosan (GMP), with low one-way fares from around $30
  • Kaohsiung (KHH) to Seosan (ICN), with low-cost one-way tickets from around $75
  • Beijing (PEK/PKX) to Seosan (GMP/ICN), with cheap one-way fares from around $75
  • Weihai (WEH) to Seosan (ICN), with low one-way fares from around $75

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to Seosan

  • Korean Air: Operating flights to Gimpo International Airport (GMP) and Incheon International Airport (ICN), Korean Air represents about 21% of Seosan's arrivals. The typical one-way fare hovers around $400, with business class available on select routes.
  • Asiana Airlines: This airline services both Gimpo International Airport (GMP) and Incheon International Airport (ICN), contributing roughly 19% of the arrivals in Seosan. Passengers can expect an average one-way fare of around $380, with business class options available on certain routes.
  • Delta: Flying exclusively to Incheon International Airport (ICN), Delta accounts for approximately 12% of Seosan’s incoming travelers. The average one-way fare is about $760, with premium economy and business class available depending on the route.
  • United: United operates flights to Incheon International Airport (ICN), making up about 6% of arrivals in Seosan. Travelers can expect an average one-way fare of around $670, with options for premium economy and business class on select routes.
  • Air Premia: This airline flies to Incheon International Airport (ICN) and accounts for nearly 5% of Seosan's arrivals. The average one-way fare is approximately $430, offering premium economy service on select routes.

Best time to fly to Seosan

The most popular months for travelers to fly to Seosan are March, April, and June, when peak temperatures in Seosan can reach up to 69.1°F in June. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 77.4°F. For better deals, January usually offers the lowest average one-way fare around $524, roughly 10% cheaper than the yearly average. Looking for additional cheaper months to fly? August, July, and November offer average one-way fares of around $534, making them good options for flexible travelers.

calendar iconMonthtemperature iconTemperaturerain iconPrecipitationmostly cloudy iconCloudinesscrowd level iconDemandprice iconAverage one-way Fare
January32.5°F (0.3°C)No Rain (Dry)Mostly SunnyAverage$524
February35.2°F (1.8°C)No Rain (Dry)Mostly SunnyAverage$560
March42.8°F (6.0°C)No Rain (Dry)Mostly SunnyHigh$588
April51.4°F (10.8°C)Light RainMostly SunnyHigh$552
May60.8°F (16.0°C)Light RainMostly SunnyAverage$672
June69.1°F (20.6°C)Light RainMostly SunnyHigh$663
July75.2°F (24.0°C)Frequent RainMostly SunnyAverage$535
August77.4°F (25.2°C)Moderate RainMostly SunnyLow$534
September70.5°F (21.4°C)Light RainMostly SunnyAverage$561
October60.6°F (15.9°C)Light RainMostly SunnyAverage$589
November49.6°F (9.8°C)Light RainMostly SunnyLow$535
December36.7°F (2.6°C)No Rain (Dry)Mostly CloudyLow$723

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to save money on a flight to Seosan

Getting some of the best deals on flights to Seosan is all about timing and flexibility. Here are some key tips to help you save:

  1. Compare flight options—use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
  3. Bundle and save—book a flight and unlock a hotel deal on Expedia.*
  4. Think about luggage-nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
  5. Earn miles—you can earn airline miles when you book your Seosan flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Seosan

Seosan welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach Seosan efficiently:

  • Public transportation: From Incheon International Airport, Incheon Int'l Airport Terminal 2 Station, a metro station, is just a short 0.1 miles away on foot, while Yongyu Station, a train station, is located about 3.6 miles from the airport and is typically reached by car.
  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Seosan, with private rides that can be arranged in advance.
  • Car rental: Renting a car in Seosan is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Seosan on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay in and around Seosan

  • Iwon: Located 11 miles away from Seosan, Iwon is a charming village perfect for families and outdoor enthusiasts. Visitors come here to enjoy the serene beaches and scenic parks. Key highlights include the breathtaking Taean Coast National Park, known for its adventure opportunities and stunning views, and Beolcheonpo Beach, ideal for a relaxing day by the sea. For those who appreciate nature, Hwanggeum Mountain offers adventure and picturesque landscapes, making Iwon a delightful getaway for those seeking both relaxation and outdoor activities.
  • Pukkando: Pukkando is located in the area of Seosan and offers a rich cultural experience for travelers. Must-visit sites include Gan-Wol-Am, a tranquil temple where you can immerse yourself in local spiritual practices, and Haemieupseong Fortress, a historic landmark that tells tales of the region's past. Beach lovers will enjoy Mongsanpo Beach, which provides a lovely spot to soak up the sun and enjoy the coastal scenery. Pukkando is perfect for those wanting to explore both history and relaxation.
  • Haemi: Haemi is located in the area of Seosan and is a wonderful destination for families and culture seekers. This village features a variety of attractions, from the historic Haemieupseong Fortress to the serene Gaesimsa Temple, both offering insights into the region's heritage. Additionally, Seosan Birdland provides a fantastic opportunity for birdwatching and outdoor enjoyment, making it a great stop for families. With its blend of history, outdoor activities, and family-friendly spaces, Haemi is a delightful place to explore.

Tips for short-haul flights to Seosan

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

  • Pack light and skip checked bags—when flying with budget airlines, it's often more economical to travel with just a carry-on. Maximize your space by using travel-sized toiletries, wearing your heaviest clothing, and coordinating outfits effectively. This approach also helps you avoid the wait at baggage claim upon arrival.
  • Bring your own entertainment—many short-haul flights might not provide in-flight entertainment. To keep yourself entertained, download TV shows, movies, music, or podcasts beforehand, and consider bringing a book. Remember to fully charge your devices before you board.
  • Arrive at the airport in plenty of time—even for short or domestic flights, it's advisable to arrive at least 1.5 to 2 hours prior to departure, taking into account traffic and security lines.
  • Bring your own snacks and water—pack some snacks and a reusable water bottle to stay hydrated and save money at the airport.

Tips for long-haul flights to Seosan

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

  • Select your seat in advance—for longer flights, choosing your seat is essential for comfort. Full-service airlines often provide complimentary seat selection once online check-in begins, typically 24–48 hours before your flight. Some airlines may allow seat selection even earlier.
  • Arrive at the airport in plenty of time—aim to arrive at least 3 hours before your departure for international flights to accommodate check-in, security, and immigration processes.
  • Relax at the airport—if you have some extra time, take a moment to explore the shops, grab a coffee, or unwind at the gate or in a departure lounge if you have access. Airport Wi-Fi is generally free and available.
  • Adjust to the new time zone mid-flight—begin syncing your body clock by setting your watch and modifying your sleep schedule to align with your destination's time zone. Try to sleep or stay awake during the flight according to the local time at your arrival destination to help minimize jet lag.

Frequently asked questions

What month is the cheapest to fly to Seosan?
Schedule your trip for September if you're looking for a deal on your fare. It's the cheapest month to fly to Seosan. If possible, avoid traveling during peak periods such as school vacation time or public holidays.
Which US cities fly direct to Seosan?
There are 13 US cities you're able to fly to Seosan directly from. Explore the options by selecting the "Direct flights only" box on Expedia and pick the ideal departure point for you. Here are a handful of the major cities to take off from:
  • Los Angeles
  • San Francisco
  • New York
  • Seattle
  • Atlanta
How to find a cheap flight to Seosan?
If you're searching for cheap flights to Seosan, consider traveling in the low season. Booking as early as possible may also save you money. Or, look for departures on a different day — Thursday flights are on average 16% cheaper than Sunday departures.* Sign up to receive price alerts on the Expedia app and get notifications when fares fall.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Seosan?
It's possible to get cheap deals on last-minute flights to Seosan, especially if your travel arrangements are flexible. Consider your options for flying from a different hub, tweaking your trip dates or selecting another airline to get a cheap flight to Seosan.
How far in advance should I book a flight to Seosan?
Secure your flight to Seosan two to four months ahead if you're taking off from an international destination. For domestic travel, the usual timeframe is 28 days in advance. Better deals and a greater choice of travel dates, times and seating options are some of the great reasons to book early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Seosan?
You can usually get cheap flights to Seosan on Sundays. You'll save around 8% on average compared to booking on a Friday, which is often the most expensive day for tickets.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Seosan?
A total of 71 airlines connect 142 airports across the globe to Seosan. Here are a few of the popular airlines to Seosan, where Incheon Intl. Airport (ICN) is the major arrival point:
  • Shandong Airlines
  • Jeju Air
  • Korean Air
  • Jin Air
Where do you fly into Seosan?
If you're flying to Seosan, the main hub to land at is Incheon Intl. Airport (ICN). You could also fly to Seosan via Gimpo Intl. Airport (GMP).
How far is the airport from central Seosan?
You'll be approximately 45 mi north of the center of Seosan after landing at Incheon Intl. Airport (ICN).
Can I save money by booking a Seosan trip package?
You could possibly save hundreds of dollars if you secure a Seosan flight and hotel package deal on Expedia. And you'll make life easier by having all your travel plans in the same place. Try bundling flights and hotels with add-ons like activities and car rentals for your own customized Seosan trip.
Can I change or cancel my flight to Seosan?
You can often change or cancel your flight to Seosan within 24 hours of booking. However, be mindful that some flights are non-refundable. In those cases, you may receive credit for a future flight rather than a direct refund. Remember to check the airline's terms and conditions in your itinerary for exact details. You can use Expedia's "No cancel fee" or "Changes included" filters when you search to find cheap flights to Seosan with flexible change policies. For more information, browse our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

Book with confidence

Tips to find the cheapest flights to Seosan

The cheapest day to fly

Get started finding a cheap flight to Seosan on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

September is the cheapest month to fly to Seosan. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Seosan. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Seosan, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Seosan

The lowest price for round-trip flights to Seosan in 2026 starts from from $134, while one-way tickets start from from $67. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Seosan. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Seosan

Scoot, ZIPAIR, Xiamen Airlines, T'Way Air, Hahn Air Systems, Korean Air, Air Premia, Alaska Airlines are just some of the airlines that can typically offer cheap tickets to Seosan. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Seosan and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Seosan, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Seosan. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Seosan plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Seosan

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Seosan.

Stopover savings

The cheapest tickets to Seosan are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Seosan. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Seosan for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Seosan. Simply download the free Expedia app to your smart device and activate Seosan flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Seosan. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Tips to find the cheapest flights to Seosan

Travel information

Destination airport
Incheon Intl.
Destination airport IATA code
ICN
Destination city name
Seoul
Roundtrip price
$133

Trending flights to Seosan

Prices were available within the past 7 days and start at $67 for one-way flights and $134 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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