Cheap flights from Seoul to Bangkok from $134

The month of September is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Seoul, with most prices found around $157. The month of March is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Seoul averaging around $192.

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Tuesday when prices can be found for as low as $310. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $379.

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is at noon. Flights from Seoul to Bangkok Suvarnabhumi Airport during this time can be as low as $302. In the morning is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $344 per ticket.

Fly from Incheon Intl to Bangkok Suvarnabhumi for the best Seoul - Bangkok Suvarnabhumi flight prices

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $244 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Seoul for as low as $206 on momondo.

There are 3 cabin classes available to choose from on Seoul to Bangkok Suvarnabhumi Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 28% on your flight if you consider stops on a Seoul to Bangkok Suvarnabhumi Airport flight.

As of June 2026, prices for Seoul to Bangkok Suvarnabhumi Airport flights are approximately 15% cheaper when compared to flights at the same time last year.

Jin Air, T'way Air, and AIR PREMIA are the most popular carriers operating from Seoul to Bangkok Suvarnabhumi

Asiana Airlines, Thai Vietjet Air and Thai AirAsia X are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Seoul according to our data. Asiana Airlines is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 15 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

Manila (MNL) was the most common stop: 36% of momondo users choosing 1-stop flights on this route connected there.

Flights via Nanjing (NKG) offer the lowest average round-trip price of $185.

Flights connecting via Guangzhou (CAN) have the shortest average one-way travel time: 8h 30m.

Guangzhou (CAN) has the shortest average layover time for this route: 1h 53m.

The number of flights available between Seoul and Bangkok Suvarnabhumi Airport is 29 per day as of June 2026. The most frequent departure time is 7:00PM, with 45% of daily flights leaving in the evening.

As of June 2026, there are 207 flights per week flying from Seoul to Bangkok Suvarnabhumi Airport. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.