Cheap Flights from Seoul to Bangkok

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

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Flight deals from Seoul to Bangkok

Looking for a cheap last-minute deal or the best return flight from Seoul to Bangkok? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seoul to Bangkok

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

Direct flights from Seoul to Bangkok

Alternative Seoul to Bangkok routes

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

Seoul to Bangkok: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 258
Cheapest month to flyApril
Average flight time6 hrs, 4 mins
Most popular airlineAsiana Airlines
Average flights per week225

Finding cheap flights from Seoul to Bangkok: Frequently asked questions

There are 2 airports in Bangkok: Don Mueang and Bangkok Suvarnabhumi.
The best price we found for a return flight from Seoul to Bangkok is ر.ق.‏ 540. 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.
6 hours and 4 minutes is the average flight time from Seoul to Bangkok.
Asiana Airlines, Korean Air and Thai Airways fly direct from Seoul to Bangkok.
As of March 2025, there are 225 flights per week flying from Seoul to Bangkok.
The cheapest month to fly from Seoul to Bangkok is usually March 2025.
If you're flying from Seoul, the cheapest airport near Bangkok is Bangkok Suvarnabhumi – which is 28.5 km away from the centre of Bangkok. We've found flights into this airport from ر.ق.‏ 540.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Bangkok on Monday, 3 March 2025.
Yes – the average flight time is 6 hours and 4 minutes.
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 Bangkok 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 Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 30°C. April is typically the warmest month in Bangkok, when it usually averages around 35°C. You can expect the least rain in December. The coldest month is November, with temperatures averaging 22°C. The rainiest month is September.
The cheapest airline that flies to Bangkok is Eastar Jet .

Flying from Seoul to Bangkok: what you need to know

  • Seoul is home to a couple of airports where you can start your adventure. Explore your options for reserving a flight from Seoul to Bangkok flying out of Incheon International Airport (ICN) or Gimpo International Airport (GMP).

  • Arrive in Bangkok at Suvarnabhumi Airport (BKK) or Don Mueang International Airport (DMK).

  • A direct flight from Seoul to Bangkok takes an average of 5 hours 52 minutes. The timezone in Bangkok is UTC+7, which makes it 2 hours behind Seoul.

  • The busiest route for flights from Seoul to Bangkok is from Incheon International Airport (ICN) to Suvarnabhumi Airport (BKK). There are 142 services every week between these two airports. If you want to get going as soon as possible, the earliest flight from ICN to BKK is the 09:00 Korean Air service. If you prefer travelling later, the last departure is at 20:40 with Asiana Airlines.

  • Leave plenty of time to catch your flight from Seoul to Bangkok. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for longer lines in popular months like July and other peak seasons. Arriving up to four hours ahead of international flights and two hours for a domestic departure will give you plenty of time for security and boarding.

  • You'll need an e-visa for Thailand if you hold a passport from South Korea and are travelling for tourism purposes. Travel documentation and visa requirements are subject to change. So before you lock in those cheap flights from Seoul to Bangkok, check with your airline and the destination country's local consulate or embassy for the latest updates.

Flying from Seoul

Incheon International Airport (ICN)

  • If you're after a direct flight from Seoul to Bangkok, they're available from Incheon International Airport (ICN). Travel from ICN to Suvarnabhumi Airport (BKK) in one continuous trip.

  • Direct flights from Seoul to Bangkok are available from a good range of airlines at ICN. Select your seat on any of these:

  • We make it easy to book a flight from Seoul to Bangkok that includes a stopover. To see the options leaving from Incheon International Airport, uncheck 'Direct flights only.' Next, choose a flight offering a stop long enough to explore your chosen city. Popular stopovers include:

    • Chiang Mai International Airport (CNX)

    • Hong Kong International Airport (HKG)

    • Taiwan Taoyuan International Airport (TPE)

  • Want a hassle-free start to your break? Stay near Incheon International Airport. Whether you're boarding an early flight from Seoul to Bangkok or just don't like being rushed, these hotels are the answer:

Gimpo International Airport (GMP)

  • Visit family or friends or just take a moment to freshen up with a stopover. If you'd like to break up your flight from Seoul to Bangkok, here's where you can stop when taking off from Incheon International Airport:

    • Chiang Mai International Airport (CNX)

    • Hong Kong International Airport (HKG)

    • Taiwan Taoyuan International Airport (TPE)

  • Want to treat yourself to an extra night away before boarding your flight from Seoul to Bangkok? Check in to a hotel near Gimpo International Airport before your break officially starts. Here's where you can stay:

Arriving in Bangkok

Suvarnabhumi Airport (BKK)

  • Suvarnabhumi Airport (BKK) is around 32 kilometres from central Bangkok. With your own car rental or if you're catching a cab, the drive is around 35 minutes.

  • Travelling by public transport will take you around 1 hour and 6 minutes.

  • The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Seoul to Bangkok. Reserve one of these accommodation options near BKK instead:

Don Mueang International Airport (DMK)

  • Don Mueang International Airport (DMK) is around 27 kilometres from the centre of Bangkok. After your flight from Seoul to Bangkok, allow for a drive time of approximately 30 minutes to get to the heart of the city.

  • You can also opt for public transport, which will take approximately 1 hour and 5 minutes.

  • There are some cosy stays where you can rest ahead of your adventure near DMK. Unwind after your flight from Seoul to Bangkok at any of these perfectly located options:

How to find the cheapest flights from Seoul to Bangkok

  • ر.ق.‏ 258 is currently the lowest price for a one-way ticket from Seoul to Bangkok. Return flights start at ر.ق.‏ 540. These prices can change based on demand.

  • Book 10 months before you travel. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from Seoul to Bangkok.

  • The cheapest month for flight tickets from Seoul to Bangkok is June. Compare prices using the 'Whole month' tool to find the cheapest travel date.

  • Sign into your online account or use the app to set up a Price Alert. We'll notify you straight away if there's a better deal on this route. It doesn't take long, and it'll save you time checking for cheap tickets from Seoul to Bangkok every day.

  • Play around with filters to find your ideal journey. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Seoul to Bangkok, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and number of stops.

Best time to go to Bangkok

  • April is the quietest month for flights from Seoul to Bangkok, while July is the busiest. Pick the ideal time to go to Bangkok based on whether you like a lively atmosphere or a more laid-back vibe.

  • Schedule your flight from Seoul to Bangkok for April if you want to explore the city during its warmest month. You can expect temperatures in Bangkok to range from 26ºC to 37ºC.

  • Look for cheap tickets from Seoul to Bangkok in December if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 19ºC and 33ºC on average.

More about Bangkok

  • When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Bangkok right here. Check out these options once you've locked in your flight from Seoul to Bangkok:

  • Grand Palace and Wat Arun are a couple of big attractions to put on your Bangkok must-do list. Keep the sightseeing going at Wat Phra Kaew.

Complete your Bangkok trip with a car rental

  • Check out our range of car rentals once you've booked your hotel and cheap flight from Seoul to Bangkok. Whether you want a compact ride, an SUV or something in between, you can compare companies in one go to find the perfect deal.

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