Cheapflights Tip: The best prices from Seoul to Bangkok are usually found in March or September, booked 20 days in advance, depart on a Wednesday or Tuesday and return on a Thursday
Find flight deals from Seoul to Bangkok
Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 September 2026.
Popular in
July
Cheapest in
March
Average price
฿7,877
Highest demand for flights based on searches. 9% potential increase in price (฿33,491 potential increase over avg. return price).
Have a flexible travel schedule? Discover the best time to fly to Bangkok from Seoul with our price prediction graph.
SEL-TH1
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seoul to Bangkok
Prices
Airlines
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 19 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.
What is the cheapest month to book a flight from Seoul to Bangkok?
Currently, March is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿6,609). Flying from Seoul to Bangkok in July is currently the most expensive (average of ฿11,281). 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?
Find hourly flight availability from Seoul to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 September 2026.
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
Explore weekly flight availability from Seoul to Bangkok. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 28 September 2026.
The most flights from SEL to TH1 are scheduled on a Friday (51 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (45 on average).
Related info for your journey
Find useful and relevant information for your journey from Seoul to Bangkok. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 Trinity Airways (Formerly T'way Air) (฿2,027), Thai AirAsia X (฿2,036), and Thai Vietjet Air (฿2,103).
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 (97%), Ethiopian Air (97%) or EL AL (96%) 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 ฿8,457, our data indicates the cheapest price to be ฿2,838. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿7,376.
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, March is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿6,609). Flying from Seoul to Bangkok in July is currently the most expensive (average of ฿11,281). 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.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
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.
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