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Cheap flights from Bangkok to Seoul from ฿4,010

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEL
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to Seoul are usually found in September or June, booked 75 days in advance, depart on a Sunday or Thursday and return on a Sunday

Cheap flight deals from Bangkok to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Seoul
Explore the most affordable flight options available from Bangkok to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Wed 15/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sat 22/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿6,639
Tue 14/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Wed 19/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿6,672
Mon 13/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 19/712:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 17/3฿7,033
Tue 19/502:25
BKK
-
ICN
1 stop18h 15m
Multiple Airlines
Sun 21/617:15
ICN
-
BKK
Nonstop5h 55m
Multiple Airlines
Deal found 21/3฿7,099
Sun 31/502:50
BKK
-
ICN
1 stop10h 55m
Multiple Airlines
Sun 5/712:10
ICN
-
BKK
Nonstop5h 50m
Multiple Airlines
Deal found 19/3฿7,132
Tue 14/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 16/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿7,198
Tue 14/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Mon 17/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿7,231
Fri 17/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Thu 20/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿7,296
Sat 18/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Fri 21/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿7,329
Sun 12/703:15
DMK
-
ICN
Nonstop5h 40m
Thai Lion Air
Mon 13/713:30
ICN
-
DMK
Nonstop5h 40m
Thai Lion Air
Deal found 19/3฿7,362
Sun 19/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Wed 19/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿7,362
Sat 11/703:15
DMK
-
ICN
Nonstop5h 40m
Thai Lion Air
Tue 21/713:30
ICN
-
DMK
Nonstop5h 40m
Thai Lion Air
Deal found 17/3฿7,395

Find flight deals from Bangkok to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Seoul (SEL). 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 22 March 2026.

Round-trip from

฿6,639

One-way from

฿4,010

Popular in

December

Cheapest in

September

Average price

฿7,954
Thai Vietjet Air
  • Thai Vietjet Air
  • 15/7-22/8
  • Nonstop
  • 11h 25m total
  • Bangkok to Seoul
Search Deals
Shandong Airlines
  • Shandong Airlines
  • 26/5
  • 1 total stop
  • 16h 50m total
  • Bangkok to Seoul
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿35,537 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿8,076 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from Bangkok to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 1/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sun 5/7

13:30-17:10

Nonstop5h 40m

฿8,348

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 19/8

03:15-10:55

Nonstop5h 40m

Incheon Intl

Fri 21/8

13:30-17:10

Nonstop5h 40m

฿8,841

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Wed 15/7

18:05-06:00

1 stop9h 55m

Incheon Intl

Fri 17/7

11:05-17:05

1 stop8h 00m

฿10,221

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Tue 14/7

18:05-06:00

1 stop9h 55m

Incheon Intl

Sun 19/7

00:30-17:05

1 stop18h 35m

฿10,221

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 1/6

14:25-06:40

1 stop14h 15m

Incheon Intl

Tue 23/6

18:05-10:50

1 stop18h 45m

฿10,517

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sat 18/4

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sun 26/4

18:30-08:50

1 stop16h 20m

฿11,076

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Thu 11/6

02:45-10:35

Nonstop5h 50m

Incheon Intl

Tue 16/6

12:05-15:50

Nonstop5h 45m

฿11,207

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Sun 19/4

07:50-14:55

2 stops29h 05m

Incheon Intl

Thu 23/4

12:00-01:35

2 stops15h 35m

฿11,339

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Mon 13/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Thu 23/7

13:30-17:10

Nonstop5h 40m

฿11,470

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Wed 2/9

00:05-07:40

Nonstop5h 35m

Incheon Intl

Sat 5/9

18:00-22:05

Nonstop6h 05m

฿11,996

Flights are sorted by cheapest return flights first.

Deals found on 20/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Bangkok to Seoul

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

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Seoul. Price data was last updated on 13 March 2026.

The best time to book flights from Bangkok to Seoul is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Bangkok to Seoul (average of ฿2,925). Flying from Bangkok to Seoul in February is currently the most expensive (average of ฿6,343). 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 BKK to SEL?

Find hourly flight availability from Bangkok to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok to Seoul as you normally would.

Weekly flight availability from Bangkok to Seoul

Explore weekly flight availability from Bangkok to Seoul. 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 22 March 2026.

The most flights from TH1 to SEL are scheduled on a Wednesday (44 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (42 on average).

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

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated 22 March 2026.
Read reviews from past customers who have flown with Korean Air,AIR PREMIA, andThai Airways from Bangkok to Seoul. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,202 reviews
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
AIR PREMIA
8.2
Very Good
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Airways
7.8
Good
394 reviews
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Vietjet Air
6.6
Okay
120 reviews
Korean Air
8.4
Very Good
1,202 reviews
Check prices

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

Overall

8.4

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Bangkok to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bangkok to Seoul?

    Thai Lion Air, Vietnam Airlines, and Thai AirAsia can get you from Bangkok to Seoul in just under 5h 40m. Your travel time can differ by up to 4h 15m. The distance between Bangkok and Seoul is about 3655 km. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Bangkok to Seoul round-trip?

    Cheapflights users have booked flights from Bangkok to Seoul return from ฿2,191. Other airlines that can offer you cheap pricing are Vietnam Airlines, from ฿2,688, and Jin Air, from ฿2,832. T'way Air is currently priced 75% below the average price you’ll pay for this route.

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

    ฿2,080 is the cheapest one-way deal found within the past few days, from Thai Vietjet Air. You may also be able to find cheap deals on Thai AirAsia X and T'way Air, with prices starting from ฿2,758 and ฿3,724, respectively.

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

    While some choose either Bangkok Suvarnabhumi - Seoul Gimpo Intl or Bangkok Don Mueang Intl - Incheon Intl, Bangkok Suvarnabhumi - Incheon Intl is the most popular route from Bangkok to Seoul.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Bangkok to Seoul on time: Eastar Jet (100%), EL AL (98%), Air Busan (97%).

  • What are the cheapest flights from Bangkok to Seoul?

    Looking for the cheapest flight from Bangkok to Seoul? While on average our users pay ฿27,212, our data indicates the cheapest price to be ฿6,571. The most popular route (Bangkok Suvarnabhumi - Incheon Intl), is priced around ฿8,249.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bangkok to Seoul 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 Bangkok to Seoul?

    Currently, September is the cheapest month in which you can book a flight from Bangkok to Seoul (average of ฿2,925). Flying from Bangkok to Seoul in February is currently the most expensive (average of ฿6,343). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bangkok to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Incheon Intl flights
Phuket City to Incheon Intl flights
Chiang Mai to Busan flights

Top 10 airlines flying from Bangkok to Seoul

Discover the top 10 airlines that operate flights from Bangkok to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
T'way AirCheapest฿2,191Average฿7,630FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Vietnam AirlinesCheapest฿2,688Average฿9,208FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Jin AirCheapest฿2,832Average฿8,615FlexibilityNo cancel feeOn-time78%
Search Jin Air flights
Jeju AirCheapest฿2,873Average฿8,879FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Eastar JetCheapest฿3,291Average฿10,069FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
Thai AirAsia XCheapest฿3,571Average฿7,642FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Thai Vietjet AirCheapest฿3,715Average฿7,683FlexibilityNo cancel feeOn-timeN/A
Search Thai Vietjet Air flights
AIR PREMIACheapest฿4,131Average฿10,578FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
Asiana AirlinesCheapest฿6,154Average฿13,645FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest฿6,276Average฿17,531FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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 Bangkok to Seoul?

Cheapflights helps you search for flights from Bangkok to Seoul via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bangkok to Seoul.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Bangkok to Seoul flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Bangkok to Seoul and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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