Find flights
Deals
When to book
FAQs

Cheap flights from Seoul to Bangkok from ฿3,158

SEL — BKK
2 Oct — 9 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seoul to Bangkok are usually found in September or March, booked 47 days in advance, depart on a Thursday or Wednesday and return on a Friday

Cheap flight deals from Seoul to Bangkok

Enter your travel dates to find the best prices.

Cheapest flights from Seoul to Bangkok

Sun 13/918:00 -
Nonstop6h 05m
Thu 17/902:25 -
Nonstop5h 35m
Deal found 31/8฿6,448
Wed 9/918:00 -
Nonstop6h 05m
Sun 13/902:25 -
Nonstop5h 35m
Deal found 31/8฿6,481
Tue 8/918:00 -
Nonstop6h 05m
Thu 10/902:25 -
Nonstop5h 35m
Deal found 30/8฿6,515
Wed 16/918:00 -
Nonstop6h 05m
Sat 19/902:25 -
Nonstop5h 35m
Deal found 30/8฿6,581
Sun 6/917:15 -
Nonstop5h 55m
Tue 15/922:45 -
Nonstop5h 30m
Deal found 31/8฿6,614
Sun 6/917:15 -
Nonstop5h 55m
Sat 12/902:25 -
Nonstop5h 35m
Deal found 30/8฿6,648
Sun 6/917:15 -
Nonstop5h 55m
Sun 20/902:25 -
Nonstop5h 35m
Deal found 30/8฿6,681
Wed 30/918:00 -
Nonstop6h 05m
Tue 6/1000:05 -
Nonstop5h 35m
Deal found 30/8฿6,714
Wed 2/912:10 -
Nonstop5h 50m
Wed 23/902:25 -
Nonstop5h 35m
Deal found 30/8฿6,747
Mon 7/912:10 -
Nonstop5h 50m
Mon 21/902:25 -
Nonstop5h 35m
Deal found 31/8฿6,780
Sun 13/918:00 -
Nonstop6h 05m
Wed 23/900:05 -
Nonstop5h 35m
Deal found 31/8฿6,814
Wed 16/919:55 -
1 stop29h 55m
Tue 29/900:50 -
1 stop29h 25m
Deal found 30/8฿7,013

Find flight deals from Seoul to Bangkok

Round-trip from

฿6,448

One-way from

฿3,158

Popular in

July

Cheapest in

September

Average price

฿6,481
Thai Vietjet Air
  • Thai Vietjet Air
  • 13/9-17/9
  • Nonstop
  • 11h 40m total
  • Seoul to Bangkok
Search Deals
Jeju Air
  • Jeju Air
  • 7/9
  • Nonstop
  • 6h 05m total
  • Seoul to Bangkok
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (฿40,490 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿6,142 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seoul to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Thu 29/10

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Sun 1/11

01:30-09:00

Nonstop5h 30m

฿8,841

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Thu 29/10

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Mon 2/11

01:30-09:00

Nonstop5h 30m

฿8,841

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Sat 24/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Sun 25/10

01:30-09:00

Nonstop5h 30m

฿8,908

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Mon 12/10

20:05-00:10

Nonstop6h 05m

Bangkok Suvarnabhumi

Tue 20/10

01:10-08:55

Nonstop5h 45m

฿9,074

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Thu 22/10

10:35-18:30

1 stop9h 55m

Bangkok Suvarnabhumi

Sun 25/10

22:10-16:30

1 stop16h 20m

฿9,074

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Fri 6/11

00:30-17:20

1 stop18h 50m

Bangkok Suvarnabhumi

Tue 10/11

22:10-16:30

1 stop16h 20m

฿9,074

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Sat 3/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Tue 6/10

00:05-07:40

Nonstop5h 35m

฿9,340

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Thu 24/9

20:05-00:10

Nonstop6h 05m

Bangkok Suvarnabhumi

Thu 1/10

01:10-08:55

Nonstop5h 45m

฿9,406

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Thu 29/10

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Sun 8/11

01:30-09:00

Nonstop5h 30m

฿9,506

IncheonBangkok

ICN Incheon Intl - BKK Bangkok Suvarnabhumi

ICNBKK

Incheon Intl

Thu 5/11

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Sat 7/11

01:30-09:00

Nonstop5h 30m

฿9,739

Flights are sorted by cheapest return flights first.

Deals found on 29/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Seoul to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok from Seoul with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Seoul to Bangkok

What is the cheapest month to book a flight from Seoul to Bangkok?

Currently, September is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿6,182). Flying from Seoul to Bangkok in July is currently the most expensive (average of ฿11,234). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEL to BKK?

A simple way to save on the total cost of your ticket is to fly from Seoul to Bangkok at midday. If you’re flexible enough to do this you can expect to save up to 66% on your trip compared to booking a flight in the morning.

Weekly flight availability from Seoul to Bangkok

The most flights from SEL to TH1 are scheduled on a Monday (45 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (42 on average).

How much does it cost for a return flight from Seoul to Bangkok?

Airfare is typical for this route at the moment.
Seoul to Bangkok flights typically cost between ฿4,986 and ฿8,476 in September.
The cheapest return price found within the last 5 days was ฿6,448 on Multiple Airlines (13 Sep–17 Sep).

How far ahead should I book a flight from Seoul to Bangkok?

To ensure you get the cheapest price possible for a flight from Seoul to Bangkok, you should look to book at least 37 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

  • How long is the flight from Seoul to Bangkok?

    There are many flights that can get you from Seoul to Bangkok in 6h 05m. Fly via T'way Air, Jeju Air, or Vietnam Airlines to get the fastest option. There are 3663 km between Seoul and Bangkok. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Seoul to Bangkok one-way?

    The cheapet airlines for a one-way flight from Seoul to Bangkok are Jeju Air (฿1,788), T'way Air (฿2,019), and Thai AirAsia X (฿2,028).

  • What are the most popular routes from Seoul to Bangkok?

    The most popular flight routes from Seoul to Bangkok are Incheon Intl - Bangkok Suvarnabhumi, Seoul Gimpo Intl - Bangkok Suvarnabhumi and Incheon Intl - Bangkok Don Mueang Intl.

  • What are the most reliable airlines from Seoul to Bangkok?

    Consider คูเวตแอร์เวย์ (98%), Ethiopian Air (95%) or AIR PREMIA (94%) when booking your flight. These represent the most reliable airlines when flying from Seoul to Bangkok.

  • What are the cheapest flights from Seoul to Bangkok?

    Looking for the cheapest flight from Seoul to Bangkok? While on average our users pay ฿8,351, our data indicates the cheapest price to be ฿2,610. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿6,016.

  • Can I find deals for flights from Seoul to Bangkok that include hotel bookings?

    Yes. In addition to deals on Seoul to Bangkok flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Bangkok?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Bangkok.

  • Can I find deals for business class flights from Seoul to Bangkok?

    Yes. Cheapflights offers flight deals from Seoul to Bangkok by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seoul to Bangkok?

    Currently, September is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿6,182). Flying from Seoul to Bangkok in July is currently the most expensive (average of ฿11,234). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seoul to Bangkok

Incheon Intl to Suvarnabhumi flights
Busan to Suvarnabhumi flights
Busan to Chiang Mai flights
Daegu to Suvarnabhumi flights
Busan to Krabi flights

Fly with Cheapflights

How does Cheapflights help users find flights from Seoul to Bangkok?

When you search for this flight from Seoul to Bangkok, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seoul to Bangkok?

Cheapflights simply makes it quick and affordable to book flights from Seoul to Bangkok by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seoul to Bangkok with no change fees?

Certainly. Search results for flights to Bangkok from Seoul shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seoul to Bangkok become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Bangkok from Seoul today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.