Cheap Flights from Samui International (USM) to Seoul (SELA)

Compare Samui International to Seoul flight deals

Find the cheapest month or even day of the year to fly to Seoul

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Flight deals from Samui International Airport to Seoul

Looking for a cheap last-minute deal or the best return flight from Samui International Airport to Seoul? If you want to travel next month, return fares start from £331. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Samui International to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Samui International to Seoul flights are currently cheapest in May.

Alternative Samui International to Seoul routes

Looking for the cheapest, fastest or easiest route from Samui International to Seoul? You could fly into the following airports instead.

Koh Samui to Seoul: Flight information

The things to know before you go.
Cheapest flight found£173
Cheapest month to flyMay

Finding cheap flights from Samui International to Seoul: Frequently asked questions

There are 2 airports in Seoul: Gimpo International and Incheon International.
The best price we found for a return flight from Samui International to Seoul is £331. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Samui International to Seoul. But we found flights with one or more stops from £331.
As of April 2026, there are no flights flying from Samui International to Seoul.
The cheapest month to fly from Samui International to Seoul is usually May.
If you're flying from Samui International Airport, the cheapest airport near Seoul is Incheon International – which is 29.7 miles away from the centre of Seoul. We've found flights into this airport from £331.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Samui International Airport to Seoul on Wednesday, 13 May 2026.
No airlines currently offer direct flights between Samui International Airport and Seoul. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seoul but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seoul is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 10°C. August is typically the warmest month in Seoul, when it usually averages around 28°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is July.
Currently, Scoot offers the cheapest flight tickets to Seoul.

Travelling from Ko Samui International Airport (USM) to Seoul: what you need to know

  • Seoul is two hours ahead of Koh Samui, where Ko Samui International Airport is located. Seoul observes the UTC+9 timezone.

  • Give yourself enough time to make your USM to Seoul flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak month such as November? Major public holidays and other high seasons can lead to longer queues at security. Be extra cautious and arrive up to four hours before an international flight and two hours before domestic departures.

  • Travelling from central Koh Samui to USM takes about 30 minutes on public transport. If you drive, ride-share or take a taxi, you'll cover the 3 kms (2 miles) in 20 minutes or so, depending on traffic.

  • In search of a hotel close to USM? If you're boarding an early flight from Ko Samui International Airport to Seoul, these accommodation options put the terminal practically at your doorstep:

  • 83% of flights departing from Ko Samui International Airport arrive at their destination on schedule. With its impressive on-time stats, disruptions are unlikely when flying out of USM.

How to find the cheapest flights from Ko Samui International Airport (USM) to Seoul

  • £173 is currently the best price for a one-way Ko Samui International Airport to Seoul flight. A return plane ticket starts from £331. These prices can change based on demand and availability.

  • To find cheap flights from USM to Seoul, book ahead. Airlines typically offer their most competitively priced fares when tickets first go on sale.

  • The 'Whole month' search tool will show you the cheapest tickets from Ko Samui International Airport to Seoul across the entire month. It's a good way to snap up a bargain if your travel dates are flexible.

  • Finding a cheap flight from USM to Seoul is a breeze with Price Alerts. Simply set up one of these automatic notifications and we'll notify you as soon as the price has dropped.

  • Save money on your flight from Ko Samui International Airport to Seoul with the help of our filters. Choose your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Seoul

Seoul Incheon International Airport (ICN)

  • Seoul Incheon International Airport (ICN) is around 48 kms (30 miles) from central Seoul. If you're opting for a ride-share or a taxi, the drive takes about 1 hour 5 minutes.

  • It typically takes 50 minutes if you're using public transport.

  • Think about booking a hotel close to ICN if you're coming in on a late flight from Ko Samui International Airport to Seoul. Select one of these options and skip the long transfer:

  • Lock in the best deal by reserving your ride from Seoul Incheon International Airport around four weeks before your flight from USM to Seoul.

Seoul Gimpo International Airport (GMP)

  • After your flight from Ko Samui International Airport to Seoul has touched down, you can get to the city centre in around 30 minutes by car. Central Seoul is roughly 16 kms (10 miles) from Seoul Gimpo International Airport (GMP).

  • If you choose to travel on public transport, the ride to the centre takes 35 minutes or so.

  • Following your USM to Seoul flight, settle in at a hotel near GMP. These are some great options that'll help you sink into relaxation mode:

  • Get the lowest price by reserving your ride from GMP one week ahead of time. You can also expect to have a wider selection of vehicles.

Best time to go to Seoul

  • December is the quietest month for flights from Ko Samui International Airport to Seoul, while January is the busiest. Find the best time to go to Seoul based on whether you want a laid-back vibe or a lively atmosphere.

  • Book a Ko Samui International Airport to Seoul plane ticket with a departure in August if you're eager to explore the city during its warmest month. You can expect temperatures to range from 19ºC to 32ºC.

  • Search for cheap tickets from USM to Seoul in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -12ºC and 4ºC on average.

More about Seoul

  • When it comes to searching for somewhere to lay your head, you'll find the best stays in Seoul right here. Browse these options once you've booked your flight from Ko Samui International Airport to Seoul:

  • Bukchon Hanok Village and Gyeongbokgung Palace are just the start of the top-rated attractions to put on your Seoul travel itinerary. Keep the momentum going by heading to N Seoul Tower.

Explore more of South Korea

  • You've seen Seoul, now it's time to explore other corners of South Korea. Journey around 322 kms (200 miles) southeast to Busan to tick off its top attractions. From Gamcheon Culture Village to Haeundae Beach and Beautiful View Busan - Diamond Bridge, you've got a jam-packed schedule ahead.

  • If you're ready to explore another side of South Korea, consider Daegu, about 241 kms (150 miles) southeast of Seoul. Alive Aquarium Daegu, Nature Park and Seonsa Historical Park are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.