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Cheap flights from Bangkok to Seoul

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Compare Bangkok 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 Bangkok to Seoul

Looking for a cheap last-minute deal or the best round-trip flight from Bangkok to Seoul? Find the lowest prices on one-way and round-trip tickets right here.
Seoul.$157 per passenger.Departing Mon, Sep 1, returning Mon, Sep 15.Round-trip flight with HK Express and Vietnam Airlines.Outbound indirect flight with HK Express, departing from Bangkok Suvarnabhumi on Mon, Sep 1, arriving in Incheon International.Inbound indirect flight with Vietnam Airlines, departing from Incheon International on Mon, Sep 15, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From $157, select.
Seoul.$159 per passenger.Departing Sun, Aug 31, returning Mon, Sep 15.Round-trip flight with HK Express and Vietnam Airlines.Outbound indirect flight with HK Express, departing from Bangkok Suvarnabhumi on Sun, Aug 31, arriving in Incheon International.Inbound indirect flight with Vietnam Airlines, departing from Incheon International on Mon, Sep 15, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From $159, select.
Seoul.$165 per passenger.Departing Wed, Mar 4, returning Sat, Apr 4.Round-trip flight with Thai AirAsia and Vietnam Airlines.Outbound indirect flight with Thai AirAsia, departing from Don Mueang on Wed, Mar 4, arriving in Incheon International.Inbound indirect flight with Vietnam Airlines, departing from Incheon International on Sat, Apr 4, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From $165, select.
Seoul.$167 per passenger.Departing Sun, Sep 14, returning Sun, Sep 21.Round-trip flight with Thai AirAsia X.Outbound direct flight with Thai AirAsia X departing from Don Mueang on Sun, Sep 14, arriving in Incheon International.Inbound direct flight with Thai AirAsia X departing from Incheon International on Sun, Sep 21, arriving in Don Mueang.Price includes taxes and charges.From $167, select.
Seoul.$168 per passenger.Departing Fri, Aug 29, returning Sun, Aug 31.Round-trip flight with Thai AirAsia X and Vietnam Airlines.Outbound indirect flight with Thai AirAsia X, departing from Don Mueang on Fri, Aug 29, arriving in Incheon International.Inbound indirect flight with Vietnam Airlines, departing from Incheon International on Sun, Aug 31, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From $168, select.
Seoul.$170 per passenger.Departing Fri, Aug 29, returning Sun, Aug 31.Round-trip flight with Thai AirAsia X.Outbound direct flight with Thai AirAsia X departing from Don Mueang on Fri, Aug 29, arriving in Incheon International.Inbound direct flight with Thai AirAsia X departing from Incheon International on Sun, Aug 31, arriving in Don Mueang.Price includes taxes and charges.From $170, select.
Seoul.$171 per passenger.Departing Sun, Jul 6, returning Wed, Jul 9.Round-trip flight with Thai AirAsia X.Outbound direct flight with Thai AirAsia X departing from Don Mueang on Sun, Jul 6, arriving in Incheon International.Inbound direct flight with Thai AirAsia X departing from Incheon International on Wed, Jul 9, arriving in Don Mueang.Price includes taxes and charges.From $171, select.
Seoul.$180 per passenger.Departing Mon, Jun 8, returning Wed, Jun 10.Round-trip flight with Thai AirAsia X.Outbound direct flight with Thai AirAsia X departing from Don Mueang on Mon, Jun 8, arriving in Incheon International.Inbound direct flight with Thai AirAsia X departing from Incheon International on Wed, Jun 10, arriving in Don Mueang.Price includes taxes and charges.From $180, select.

Find the cheapest month to fly from Bangkok to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Bangkok to Seoul flights are currently cheapest in September.
Jun
from $209
Jul
from $171
Aug
from $168
Sep
from $157
Oct
from $183
Nov
from $204
Dec
from $209
Jan
from $209
Feb
from $209
Mar
from $203
Apr
from $180
May
from $180

Direct flights from Bangkok to Seoul

Alternative Bangkok to Seoul routes

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

Bangkok to Seoul: Flight information

The things to know before you go.
Cheapest flight found$157
Cheapest month to flySeptember
Average flight time5 hrs, 35 mins
Most popular airlineKorean Air
Average flights per week177

Finding cheap flights from Bangkok to Seoul: Frequently asked questions

There are 2 airports in Seoul: Gimpo International and Incheon International.
The best price we found for a round-trip flight from Bangkok to Seoul is $157. 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 34 minutes is the average flight time from Bangkok to Seoul.
Korean Air, Asiana Airlines and Delta fly direct from Bangkok to Seoul.
There are 150 flights per week flying from Bangkok to Seoul, as of June 2025.
The cheapest month to fly from Bangkok to Seoul is usually June 2025.
If you're flying from Bangkok, the cheapest airport near Seoul is Incheon International – which is 47.8 km away from the center of Seoul. We've found flights to this airport from $157.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Bangkok to Seoul on Monday, September 1, 2025.
Yes – the average flight time is 5 hours and 34 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 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 June, the average temperature is usually around 20°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.
The cheapest airline that flies to Seoul is HK Express, and the cheapest airline that flies to Incheon International Airport is Thai AirAsia X.

Flying from Bangkok to Seoul: what you need to know

  • Start your vacation planning by considering where you'll take off for your flight from Bangkok to Seoul. Suvarnabhumi Airport (BKK) and Don Mueang International Airport (DMK) are Bangkok's main airports.

  • Touch down in Seoul at Incheon International Airport (ICN) or Gimpo International Airport (GMP).

  • Around 5 hours 30 minutes is how long you'll be traveling on a direct Bangkok to Seoul flight.

  • Seoul is two hours ahead of Bangkok and is in the UTC+9 timezone.

  • Suvarnabhumi Airport (BKK) to Incheon International Airport (ICN) is the most traveled route that connects these two cities. There are 88 flights a week to pick from. If you have things to do before leaving, the last flight from Bangkok to Seoul is with Asiana Airlines at 23:55. Choose the first BKK to ICN departure with Korean Air at 00:10 to make the most of your first day in Seoul.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. That way, you can comfortably board your Bangkok to Seoul flight.

  • Be prepared for longer queues during popular months like July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

How to find the cheapest flights from Bangkok to Seoul

  • Lock in cheap Bangkok to Seoul flights by booking three months ahead. According to our research, that's the ideal time frame for landing a bargain.

  • Organize your trip for June. That's the best month for scoring cheap plane tickets from Bangkok to Seoul. If you're flexible with your dates, use the 'Whole month' tool to see the lowest price across every month.

  • Locking in a cheap flight from Bangkok to Seoul is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know as soon as a better deal is available.

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

Flying from Bangkok

Suvarnabhumi Airport (BKK)

  • If you're looking for a direct flight from Bangkok to Seoul, you can depart from Suvarnabhumi Airport (BKK). Get from BKK to Incheon International Airport (ICN) without any stops.

  • There are numerous airlines that offer direct Bangkok to Seoul plane tickets out of BKK. Get up and away with one of these trusted names:

  • Think about adding a stopover to potentially save money on your Bangkok to Seoul flight. Just deselect 'Direct flights only' when browsing departures from Suvarnabhumi Airport. Break up the journey at one of these popular airports:

    • Gimhae International Airport (PUS)

    • Kansai International Airport (KIX)

    • Beijing Capital International Airport (PEK)

  • BKK is around 27 kilometers from central Bangkok. If you're catching a cab, driving or ride-sharing from the center, it'll take 35 minutes or so to get there, depending on traffic. If you're taking public transport, expect the travel time to be around 1 hour 5 minutes.

  • After a leisurely start to your travels? Stay near Suvarnabhumi Airport. Whether you're boarding an early flight from Bangkok to Seoul or just don't want to be rushed, these hotels have you covered:

  • 67.87% of flights that leave from Suvarnabhumi Airport make it to their destination on time.

Don Mueang International Airport (DMK)

  • Prefer to jet off from Don Mueang International Airport (DMK)? This hub offers nonstop flights from Bangkok to Seoul, seamlessly connecting to Incheon International Airport (ICN).

  • From DMK, you can book a direct Bangkok to Seoul plane ticket with Thai AirAsia X.

  • Visit family or friends or just take a moment to stretch your legs with a stopover. If you'd like to break up your Bangkok to Seoul flight, browse these options when leaving from Don Mueang International Airport:

    • Jinan Yaoqiang International Airport (TNA)

    • Taiwan Taoyuan International Airport (TPE)

    • Chiang Mai International Airport (CNX)

  • You can reach DMK from central Bangkok in about 30 minutes by car, depending on traffic conditions. The ride by public transport will take roughly 1 hour 5 minutes to travel the 21 kilometers or so.

  • Want to enjoy an extra night away before your flight from Bangkok to Seoul? Check in to a hotel near Don Mueang International Airport before your vacation officially starts. Check out these accommodation options:

  • Don Mueang International Airport has an on-time performance rate of 66.48%. This figure shows how frequently flights that take off from this airport arrive at their destination on time.

Arriving in Seoul

Incheon International Airport (ICN)

  • Central Seoul is around 48 kilometers from Incheon International Airport (ICN). How long it takes to drive there will vary based on time of day, so do some research ahead of time.

  • Getting there on public transport will take you around 1 hour 45 minutes.

  • If you have a late flight from Bangkok to Seoul, nothing beats the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and relaxing soon after at one of these accommodation options near ICN:

  • Grab an Incheon International Airport rental car and explore Seoul and beyond with your own set of wheels. WECAR, Hi Rent A Car and Alamo are popular outlets you can book with here.

  • Get the best deal by reserving your vehicle from Incheon International Airport about four weeks before your departure date.

Gimpo International Airport (GMP)

  • Gimpo International Airport (GMP) is roughly 16 kilometers from central Seoul. Check out your options for getting into town after your flight from Bangkok to Seoul has arrived.

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

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

  • GOGO Rent a Car, Gogo Rental Car Seoul and Hi Rent A Car make collecting a Gimpo International Airport rental car quick and easy. These trusted providers are located around or in the terminal and will have you on the road before long.

  • Get exactly what you want. Booking your ride from GMP one week in advance often means better prices and a bigger choice of vehicles.

Best time to go to Seoul

  • July is the busiest month for flights from Bangkok to Seoul. To escape the crowds, go to Seoul in April.

  • When booking your Bangkok to Seoul tickets, consider what kind of weather you prefer. August is the warmest month in Seoul, with temperatures ranging from 19ºC (66ºF) to 32ºC (90ºF).

  • Look for cheap flights from Bangkok to Seoul in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 4ºC (39ºF) on average.

More about Seoul

Explore more of South Korea

  • You've seen Seoul, now it's time to discover other corners of South Korea. Journey about 322 kilometers south-east to Busan to tick off its leading attractions. From Haeundae Beach to Gamcheon Culture Village and Beomeosa Temple, you'll have a packed itinerary ahead.

  • Incheon is another well-known destination in South Korea and is around 56 kilometers west of Seoul. No trip is complete without a visit to Lawn Square of Incheon International Airport, Yeongjong Sky City No.23 Park and 스카이72 GC 바다코스.

More travel options

Plan the rest of your trip from Bangkok to Seoul

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