฿4,825 Find Cheap Flights from Bangkok to Seoul – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 30% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
฿9,042
Typical prices: ฿8,447-฿13,777
Air China
Tue 20/11Thu 29/11
BKK - ICN • 1 stop
Cheapest direct flights
฿10,459
Typical prices: ฿8,408-฿13,868
Trinity Airways (Formerly T'way Air), Hahn Air Systems
Mon 19/11Thu 29/11
BKK - ICN • Direct
Direct flights
You can fly direct with Korean Air, Thai Airways, and others. Average duration is 5h 20m.
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 40% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg ฿7,827 (return)
Shortest trip • 9h 32m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Seoul!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bangkok to Seoul

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Bangkok to Seoul

Fri 20 Nov - Sun 29 Nov
Air China Logo
13:50 - 12:55BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
21h 05m1 stop Chengdu Tianfu Intl
Air China Logo
13:10 - 00:10ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
13h 00m1 stop Beijing Capital
฿9,042Air China
Thu 3 Dec - Sun 6 Dec
Air China Logo
19:30 - 16:35BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
19h 05m1 stop Beijing Capital
Air China Logo
13:10 - 00:10ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
13h 00m1 stop Beijing Capital
฿9,177Air China
Thu 19 Nov - Sun 29 Nov
Trinity Airways (Formerly T'way Air) Logo
01:30 - 09:00BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
5h 30mdirect
Trinity Airways (Formerly T'way Air) Logo
19:50 - 00:10ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
6h 20mdirect
฿10,527Trinity Airways (Formerly T'way Air)
Thu 19 Nov - Sun 29 Nov
Trinity Airways (Formerly T'way Air) Logo
01:30 - 09:00BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
5h 30mdirect
Trinity Airways (Formerly T'way Air) Logo
19:50 - 00:10ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
6h 20mdirect
฿10,560Trinity Airways (Formerly T'way Air)
Thu 3 Dec - Mon 7 Dec
Vietnam Airlines Logo
12:20 - 22:35BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
8h 15m1 stop Da Nang
Vietnam Airlines Logo
23:55 - 11:15ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
13h 20m1 stop Da Nang
฿10,695Vietnam Airlines
Wed 6 Jan - Sun 10 Jan
Vietnam Airlines Logo
19:00 - 05:30BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
8h 30m1 stop Hanoi Noibai
Vietnam Airlines Logo
23:55 - 17:00ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
19h 05m1 stop Da Nang
฿10,695Vietnam Airlines
Fri 4 Dec - Tue 8 Dec
Eastar Jet Logo
22:25 - 06:20BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
5h 55mdirect
Eastar Jet Logo
17:05 - 21:25ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
6h 20mdirect
฿10,864Eastar Jet
Wed 23 Dec - Tue 29 Dec
Jeju Air Logo
00:40 - 08:15BKK  Bangkok Suvarnabhumi-GMP Seoul Gimpo Intl
29h 35m1 stop Busan Gimhae
Jeju Air Logo
20:05 - 23:40GMP  Seoul Gimpo Intl-BKK Bangkok Suvarnabhumi
29h 35m1 stop Busan Gimhae
฿10,898Jeju Air
Wed 9 Dec - Mon 14 Dec
Eastar Jet Logo
22:25 - 06:20BKK  Bangkok Suvarnabhumi-ICN Incheon Intl
5h 55mdirect
Eastar Jet Logo
17:05 - 21:25ICN  Incheon Intl-BKK Bangkok Suvarnabhumi
6h 20mdirect
฿10,931Eastar Jet
Tue 5 Jan - Wed 20 Jan
Jeju Air Logo
00:40 - 08:15BKK  Bangkok Suvarnabhumi-GMP Seoul Gimpo Intl
29h 35m1 stop Busan Gimhae
Jeju Air Logo
20:05 - 23:40GMP  Seoul Gimpo Intl-BKK Bangkok Suvarnabhumi
29h 35m1 stop Busan Gimhae
฿11,336Jeju Air
Booking Insights

Price, demand, and travel trends for Bangkok to Seoul flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Bangkok to Seoul?

Return flights from Bangkok to Seoul typically range from ฿8,447 to ฿13,777. The lowest price found in the past 5 days was ฿9,042 on Air China.

What is the cheapest Bangkok to Seoul flight route?

Bangkok Suvarnabhumi Airport (BKK) to Seoul Gimpo Intl Airport (GMP) is the cheapest Bangkok to Seoul route, averaging ฿7,456 return. Other Bangkok to Seoul routes average ฿14,194, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Bangkok to Seoul?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Bangkok to Seoul. It's 3% cheaper than the average day, while Sunday is the most expensive, with prices 7% higher.

What is the cheapest month to fly from Bangkok to Seoul?

•March is the cheapest month to fly from Bangkok to Seoul at ฿8,705 return.
•October (฿12,416) and December (฿12,315) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 42% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Bangkok to Seoul the cheapest?

Flights from Bangkok to Seoul are cheapest 26 weeks before departure. Booking in this window typically costs about 15% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Bangkok to Seoul flights

Low season

July

Cheapest flight

฿4,825
Beat the crowds with an average 27% drop in travellers.
The most popular month to fly with an average 33% increase in travellers.
One-way flight from Bangkok Suvarnabhumi Airport to Incheon Intl Airport

When to book flights from Bangkok to Seoul

Are your dates flexible? Find out the best times to travel from Bangkok to Seoul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Flights from Bangkok to Seoul: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Bangkok to Seoul 
Verified travelerFlew with Asiana Airlines-Jun 2025
Do not check a suitcase take a carry on
Verified travelerFlew with ฮาวายเอี้ยนแอร์ไลน์-Sep 2024
I will not fly to ICN and transfer to Hawaiian again. Both Asiana and KAL are good flights to ICN. And their lounges are both good. But if flying onward, stay with Asiana or KAL connections. ICN doesn’t do terminal connections well.
ArthurFlew with เดลต้า-Jul 2024
Make sure to select an aisle seat. Korean Aur flight attendants are. very nice and try to help . My overhearing light was broken !

Your Bangkok to Seoul flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Bangkok to Seoul?

    These are the earliest and latest flight times available from Bangkok to Seoul:

    • Earliest: departs at 01:00 and lands at 06:20
    • Latest: departs at 23:55 and lands at 05:15.

    The flight takes about 5h 20m.

  • Which cabin classes can I book on flights from Bangkok to Seoul?

    Three cabin classes are available on flights from Bangkok to Seoul:

    • Economy class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Bangkok to Seoul?

    A direct flight from Bangkok to Seoul takes 5h 20m, covering 5,982 km.

  • Do I need a passport to fly from Bangkok to Seoul?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Bangkok to Seoul flight?

    Return flights from Bangkok to Seoul range from ฿8,447 to ฿13,777, with an average of ฿10,940 over the past 12 months. Anything below ฿8,447 counts as a good deal.

  • How expensive are last-minute Bangkok to Seoul flights?

    Last-minute fares on this route (booked within two weeks of departure) run 4% above the ฿10,940 route average. Book 26 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Bangkok to Seoul?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average ฿7,827 return via Ho Chi Minh City (SGN), compared with ฿10,991 for direct.

  • What is the standard checked bag allowance on flights from Bangkok to Seoul?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿78–฿3,374 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • How are flight departures from Bangkok to Seoul spread across the day?

    Night is the busiest departure period on Bangkok to Seoul flights, with 78% leaving in that window. Morning departures account for 15%, Afternoon flights for 7%, and Evening flights for 0%.

  • Which airlines offer Wi-Fi on Bangkok to Seoul flights?

    Asiana Airlines is the only airline on the Bangkok to Seoul route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Bangkok to Seoul looking right now?

    One-way fares from Bangkok to Seoul are currently lower than usual. Average one-way flight prices are about ฿5,317, which is 18% below the typical average for this route.

  • What car rental options are available in Seoul?

    Since Seoul is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Incheon Intl Airport (ICN) – daily rates from around ฿1,583:

    • WECAR
    • Wheego
    • Yesaway
    • Alamo
    • Enterprise Rent-A-Car

    Near Seoul Gimpo Intl Airport (GMP) – daily rates from around ฿1,734:

    • Wheego
    • Yesaway
    • Hi Rent
    • Europcar
    • Cartago Rent A Car

  • Which airports can I use when flying from Bangkok to Seoul?

    Flights from Bangkok to Seoul may depart from several airports in Bangkok area, including Bangkok Suvarnabhumi (BKK) and Bangkok Don Mueang Intl (DMK), with arrivals available at airports in Seoul such as Seoul Gimpo Intl (GMP) and Incheon Intl (ICN).

  • Which airports do connecting flights from Bangkok to Seoul pass through?

    One-stop flights from Bangkok to Seoul most commonly connect through:

    • Hong Kong Intl (HKG) – 45% of one-stop connections
    • Xiamen Gaoqi Intl (XMN) – 14% of one-stop connections
    • Hanoi Noibai (HAN) – 12% of one-stop connections
    • Beijing Capital (PEK) – 6% of one-stop connections

  • Can I save money by using flexible dates for flights from Bangkok to Seoul?

    Yes. Flexible dates can save you up to 10% on flights from Bangkok to Seoul. Wednesday is the cheapest departure day at ฿10,628 return on average, while Sunday is the most expensive at ฿11,775, a difference of ฿1,147.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Bangkok to Seoul?

    9 airlines operate flights between Bangkok and Seoul. The airlines offering direct flights on this route include:

    • Korean Air
    • Thai Airways
    • Asiana Airlines
    • Eastar Jet
    • Trinity Airways (Formerly T'way Air)
    • Thai Vietjet Air

  • How much time can I save by choosing a different stopover airport from Bangkok to Seoul?

    Flying via Ho Chi Minh City (SGN) gives the shortest average 1-stop total travel time of 8h 57m, compared to 9h 32m via Beijing Capital (PEK) and 9h 43m via Da Nang (DAD).

  • What is the time difference between Bangkok and Seoul?

    Seoul is 2 hours ahead of Bangkok (Korean Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seoul?

    Some of the most popular sights in Seoul are Gyeongbokgung Palace and Jamwon Hangang Park. These are among the most viewed places in Seoul on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Bangkok to Seoul flights?

    Among airlines operating Bangkok to Seoul flights:

    • Thai Vietjet Air: offers free seat selection
    • AIR PREMIA: offers free seat selection
    • Thai Airways: offers free seat selection
    • Asiana Airlines: offers free seat selection
    • Thai AirAsia: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Bangkok to Seoul flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Thai Vietjet Air: a cabin bag and a checked bag in Economy class
    • Trinity Airways (Formerly T'way Air): a cabin bag and a checked bag in Economy class
    • AIR PREMIA: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Bangkok to Seoul flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average ฿10,628, which is about ฿1,147 less than Sunday fares (10% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 15% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Bangkok to Seoul trip for March. Fares historically average ฿8,705 return in that month – typically ฿3,711 less than the most expensive month, which is October (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Ho Chi Minh City Airport (SGN) can be cheaper than flying direct. The cheapest stopover option averages ฿7,827 return on this route – about ฿3,164 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near Incheon Intl Airport

    • Grand Hyatt Incheon
    • Hotel Hu Incheon Airport
    • Best Western Premier Incheon Airport

    Near Seoul Gimpo Intl Airport

    • Inter City Seoul
    • LOTTE City Hotel Gimpo Airport
    • Mayfield Hotel & Resort Seoul

More options for your flight from Bangkok to Seoul

Complete your trip to Seoul with a hotel stay or car hire