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? If you want to travel next month, return fares start from Rs64,635. 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 August.

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 foundRs24,751
Cheapest month to flyAugust
Average flight time5 hrs, 55 mins
Most popular airlineKorean Air
Average flights per week1,236

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 Rs62,543. 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.
5 hours and 55 minutes is the average flight time from Seoul to Bangkok.
Korean Air, Thai Airways and Delta fly direct from Seoul to Bangkok.
As of July 2026, there are 1,236 flights per week flying from Seoul to Bangkok.
The cheapest month to fly from Seoul to Bangkok is usually October.
If you're flying from Seoul, the cheapest airport near Bangkok is Bangkok Suvarnabhumi – which is 28.6 km away from the centre of Bangkok. We've found flights into this airport from Rs62,543.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Bangkok on Friday, 23 October 2026.
Yes – the average flight time is 5 hours and 55 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 July, the average temperature is usually around 28°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 Vietnam Airlines. And the cheapest airline that flies to Bangkok Suvarnabhumi Airport is Thai VietJet Air.

Travelling from Seoul to Bangkok: what you need to know

  • Start your holiday planning by considering where you'll take off for your flight from Seoul to Bangkok. Incheon International Airport (ICN) and Gimpo International Airport (GMP) are the main airports in Seoul.

  • When working out where to arrive in Bangkok, Bangkok Suvarnabhumi Airport (BKK) and Don Mueang Airport (DMK) are the major entry points.

  • Around 5 hours 55 minutes is how long you'll be travelling on a direct Seoul to Bangkok flight.

  • The timezone in Bangkok is UTC+7, which is two hours behind Seoul.

  • The most popular route for flights from Seoul to Bangkok is Incheon International Airport (ICN) to Bangkok Suvarnabhumi Airport (BKK). There are 94 services between these two airports each week.

  • To ensure you make it on your Seoul to Bangkok flight, leave plenty of time for things like baggage drop and finding your gate. Turning up two hours before international departures and an hour before domestic flights is the general travel rule.

  • Flying during a peak time like August? School holidays and other high seasons can mean longer queues at security. Play it safe and get there up to four hours before an international flight and two hours before domestic departures.

How to find the cheapest flights from Seoul to Bangkok

  • Score cheap Seoul to Bangkok flights by booking one month ahead. According to our research, that's the ideal time for landing a bargain.

  • The best month for landing cheap plane tickets from Seoul to Bangkok is June. Use the 'Whole month' tool to compare prices, then select the dates that offer the lowest fares.

  • Spend less time searching for cheap flights from Seoul to Bangkok by setting up a Price Alert. You'll get an email or push notification on the app when fares go down.

  • Find an affordable Seoul to Bangkok flight with the help of our filters. Choose your ideal departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from Seoul

Incheon International Airport (ICN)

  • You can book a direct flight from Seoul to Bangkok jetting out of Incheon International Airport (ICN). Start your trip at ICN and then hit the runway at Bangkok Suvarnabhumi Airport (BKK) or Don Mueang Airport (DMK).

  • Direct Seoul to Bangkok plane tickets are available from numerous airlines at ICN. Book your seat with any of these:

  • Think about adding a stopover to potentially save on your Seoul to Bangkok flight. Just uncheck 'Direct flights only' when browsing departures from Incheon International Airport. Take a break (and maybe save some cash) by stopping at one of these popular airports:

    • Guangzhou Airport (CAN)

    • Hong Kong Intl Airport (HKG)

    • Taipei Taiwan Taoyuan Airport (TPE)

  • Located around 48 kilometres from the centre of Seoul, ICN can be reached in about 1 hour 5 minutes by car, depending on traffic. The journey by public transport will take roughly 50 minutes.

  • Have an early flight from Seoul to Bangkok? Avoid the hassle of rushing to the terminal (and get some extra shut-eye) by choosing one of these stays close to Incheon International Airport:

  • When it comes to Incheon International Airport's on-time performance, 74% of flights arrive within the scheduled time frame.

Gimpo International Airport (GMP)

  • Visit family or friends or just take some time to unwind with a stopover. If you'd like to break up your Seoul to Bangkok flight, here's where you can stop when departing from Gimpo International Airport:

    • Kansai International (Osaka) Airport (KIX)

    • Gimhae International Airport (PUS)

    • Kaohsiung Airport (KHH)

  • On public transport, you can travel from central Seoul to GMP in around 35 minutes. The terminal is roughly 18 kilometres away. Driving will take you about 30 minutes.

  • Want to treat yourself to an extra night away before catching your flight from Seoul to Bangkok? Unwind in a hotel near Gimpo International Airport before your adventure officially starts. Stay at one of these accommodation options:

  • The majority of flights that leave Gimpo International Airport make it to their destination as expected. It boasts a strong on-time performance rate of 81%.

Arriving in Bangkok

Bangkok Suvarnabhumi Airport (BKK)

  • Bangkok Suvarnabhumi Airport (BKK) to central Bangkok takes around 35 minutes to reach by car. The centre is roughly 27 kilometres away.

  • Travelling to the centre by public transport will take you roughly 35 minutes.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Seoul to Bangkok. Book one of these accommodation options near BKK instead:

  • Pick up a Bangkok Suvarnabhumi Airport rental car and explore Bangkok and beyond with your own wheels. Chic Car Rent, asap car rental and Hertz are top providers to choose from here.

  • Reserving your ride from Bangkok Suvarnabhumi Airport about four weeks in advance increases your chances of getting a good deal.

Don Mueang Airport (DMK)

  • As soon as your flight from Seoul to Bangkok has landed, you can reach the city centre in about 35 minutes by car. Central Bangkok is approximately 21 kilometres from Don Mueang Airport (DMK).

  • Public transport will get you there in about 1 hour 5 minutes.

  • Hang the 'Do not disturb' sign on your door and rest at a hotel near DMK. Here are a few options where you can tuck yourself in after your flight from Seoul to Bangkok:

  • The fastest way to get to where you're going is with a Don Mueang Airport rental car. Pick up your wheels from Chic Car Rent, asap car rental or Hertz and set off in the blink of an eye.

  • Avoid potential price surges. Booking your ride three weeks ahead of your arrival at DMK can get you a lower rate.

Best time to go to Bangkok

  • March is the quietest month for flights from Seoul to Bangkok, while January is the most popular. Pick the ideal time to visit Bangkok based on whether you want a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Bangkok is April, with temperatures ranging between 26ºC and 37ºC. Lock in your Seoul to Bangkok ticket then if that's your ideal forecast.

  • January sees average temperatures of between 19ºC and 34ºC. Search for cheap flights from Seoul to Bangkok around that time if you like cooler conditions.

More about Bangkok

  • Start your Bangkok trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from Seoul to Bangkok, explore our selection of accommodation options including:

  • The Grand Palace and The Temple of the Emerald Buddha are just two of the big attractions to put on your Bangkok must-do list. Keep the momentum going by heading to Songkran Festival Silom.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.