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Cheap flights from Bangkok to Seoul from ฿4,403

BKK — SEL
6 Oct — 13 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to Seoul are usually found in March or November, booked 76 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Bangkok to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Seoul

Thu 10/901:10 -
Nonstop5h 45m
Sun 13/918:00 -
Nonstop6h 05m
Deal found 1/9฿7,393
Wed 16/900:05 -
Nonstop5h 35m
Fri 25/918:00 -
Nonstop6h 05m
Deal found 2/9฿7,426
Thu 17/900:05 -
Nonstop5h 35m
Sat 26/919:55 -
Nonstop5h 50m
Deal found 2/9฿7,458
Tue 22/900:05 -
Nonstop5h 35m
Sun 27/920:05 -
Nonstop6h 05m
Deal found 4/9฿7,491
Sat 3/1000:05 -
Nonstop5h 35m
Thu 8/1020:05 -
Nonstop6h 05m
Deal found 4/9฿7,524
Thu 1/1000:05 -
Nonstop5h 35m
Fri 9/1018:00 -
Nonstop6h 05m
Deal found 2/9฿7,590
Thu 1/1000:05 -
Nonstop5h 35m
Sun 11/1019:55 -
Nonstop5h 50m
Deal found 2/9฿7,656
Tue 15/900:05 -
Nonstop5h 35m
Fri 25/918:00 -
Nonstop6h 05m
Deal found 2/9฿7,721
Fri 4/901:10 -
Nonstop5h 45m
Sun 13/918:00 -
Nonstop6h 05m
Deal found 2/9฿7,754
Sat 31/1002:30 -
Nonstop5h 35m
Thu 12/1111:20 -
Nonstop6h 10m
Deal found 4/9฿8,280
Sun 1/1102:30 -
Nonstop5h 35m
Sat 14/1111:20 -
Nonstop6h 10m
Deal found 5/9฿8,313
Sat 24/1002:30 -
Nonstop5h 35m
Fri 30/1011:20 -
Nonstop6h 10m
Deal found 2/9฿8,346

Find flight deals from Bangkok to Seoul

Round-trip from

฿7,393

One-way from

฿4,403

Popular in

May

Cheapest in

March

Average price

฿10,416
Jin Air
  • Jin Air
  • 22/9-26/9
  • Nonstop
  • 11h 25m total
  • Bangkok to Seoul
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Thai Vietjet Air
  • Thai Vietjet Air
  • 30/9-31/12
  • Nonstop
  • 5h 35m total
  • Bangkok to Seoul
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (฿31,170 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿5,103 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Mon 28/9

01:10-08:55

Nonstop5h 45m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿4,633

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 17/9

01:10-08:55

Nonstop5h 45m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿4,666

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Fri 6/11

02:30-10:05

Nonstop5h 35m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,093

BangkokIncheon

DMK Bangkok Don Mueang Intl - ICN Incheon Intl

DMKICN

Bangkok Don Mueang Intl

Fri 2/10

02:45-10:35

Nonstop5h 50m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,421

BangkokSeoul

BKK Bangkok Suvarnabhumi - GMP Seoul Gimpo Intl

BKKGMP

Bangkok Suvarnabhumi

Sat 19/9

00:50-08:15

1 stop29h 25m

Seoul Gimpo Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,520

BangkokSeoul

DMK Bangkok Don Mueang Intl - GMP Seoul Gimpo Intl

DMKGMP

Bangkok Don Mueang Intl

Wed 30/9

02:45-19:45

1 stop15h 00m

Seoul Gimpo Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,618

BangkokSeoul

BKK Bangkok Suvarnabhumi - GMP Seoul Gimpo Intl

BKKGMP

Bangkok Suvarnabhumi

Sat 12/9

00:50-08:15

1 stop29h 25m

Seoul Gimpo Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,651

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Wed 7/10

14:35-06:05

1 stop13h 30m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,717

BangkokSeoul

DMK Bangkok Don Mueang Intl - GMP Seoul Gimpo Intl

DMKGMP

Bangkok Don Mueang Intl

Fri 11/9

05:10-17:40

1 stop10h 30m

Seoul Gimpo Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,816

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Tue 3/11

22:10-16:30

1 stop16h 20m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,848

Flights are sorted by cheapest return flights first.

Deals found on 1/9

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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

Cheapflights Insights

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

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

Currently, March is the cheapest month in which you can book a flight from Bangkok to Seoul (average of ฿7,787). Flying from Bangkok to Seoul in May is currently the most expensive (average of ฿11,828). 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?

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

The most flights from TH1 to SEL are scheduled on a Thursday (45 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (39 on average).

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

Airfare is below average for this route at the moment.
Bangkok to Seoul flights typically cost between ฿7,754 and ฿13,044 in September.
The cheapest return price found within the last 5 days was ฿7,393 on Multiple Airlines (22 Sep–26 Sep).

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

The best time to book flights from Bangkok to Seoul is 74 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.

Reviews of airlines servicing Seoul

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
1,221 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
1,221 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
8.1
Very Good
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
7.9
Good
418 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
6.7
Okay
134 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Boarding

8.5

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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

  • How long is the flight from Bangkok to Seoul?

    T'way Air, Jeju Air, and Thai AirAsia can get you from Bangkok to Seoul in just under 5h 35m. Your travel time will be generally consistent. The distance between Bangkok and Seoul is about 3663 km. All flights are typically direct.

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

    Cheapflights users have booked flights from Bangkok to Seoul return from ฿2,873. Other airlines that can offer you cheap pricing are Thai Vietjet Air, from ฿4,528, and Thai AirAsia, from ฿4,818. Jeju Air is currently priced 71% below the average price you’ll pay for this route.

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

    ฿2,138 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 ฿3,039 and ฿3,569, respectively.

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

    While some choose either Bangkok Don Mueang Intl - Incheon Intl or Bangkok Suvarnabhumi - Seoul Gimpo 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: AIR PREMIA (91%), Thai Vietjet Air (90%), เคนย่าแอร์เวย์ (82%).

  • What are the cheapest flights from Bangkok to Seoul?

    Looking for the cheapest flight from Bangkok to Seoul? While on average our users pay ฿26,012, our data indicates the cheapest price to be ฿4,786. The most popular route (Bangkok Suvarnabhumi - Incheon Intl), is priced around ฿8,280.

  • 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, March is the cheapest month in which you can book a flight from Bangkok to Seoul (average of ฿7,787). Flying from Bangkok to Seoul in May is currently the most expensive (average of ฿11,828). 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 Bangkok to Seoul

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

AirlineCheapestAverageFlexibilityOn-time
Jeju AirCheapest฿2,873Average฿8,671FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Thai Vietjet AirCheapest฿4,528Average฿8,917FlexibilityNo cancel feeOn-timeN/A
Search Thai Vietjet Air flights
Thai AirAsiaCheapest฿4,818Average฿10,167FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai AirAsia XCheapest฿4,991Average฿7,630FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
T'way AirCheapest฿5,565Average฿10,481FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Thai Lion AirCheapest฿5,626Average฿10,000FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Vietnam AirlinesCheapest฿5,938Average฿8,465FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Eastar JetCheapest฿6,176Average฿10,411FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
AIR PREMIACheapest฿6,901Average฿12,598FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
Air BusanCheapest฿7,040Average฿9,329FlexibilityNo cancel feeOn-time94%
Search Air Busan flights

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