Cheap flights from Bangkok to Seoul from £120

The month of September is, on average, the cheapest month to fly to Seoul from Bangkok, with most prices found around £37. If you are unable to visit Seoul during the month of September, then departing from Bangkok during the month May is also very affordable. Most momondo users find prices during this month for around £42.

The cheapest day to depart from Bangkok to Seoul is on a Sunday when prices can be found for as low as £232. Flights from Bangkok to Seoul on a Saturday will generally be more expensive and average around £532. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Seoul is in the evening. Flights from Bangkok to Seoul during this time can be as low as £233. Flights in the morning are often more expensive, with an average ticket price of £336.

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

You are more likely to see cheaper flights to Seoul from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around £210 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from Bangkok for as low as £134 on momondo.

As of April 2026, there are 32 flights per day flying from Bangkok to Seoul. The most common time of day flights depart is 23:00, with 42% of flights taking off in the evening.

225 flights are operational weekly from Bangkok to Seoul as of April 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.