Find Cheap Flights from Seoul to Bangkok – Compare and Save

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Everything you should know

Direct flights
Every day
You can fly direct with Korean Air, Thai Airways, and others. Average duration is 6h 07m.
Direct flights
+1
Direct flights
+1
Top routes
GMP - BKK
Cheapest • 57% average savings
ICN - BKK
Most popular
Insights
Insights
When to book
6 weeks
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 28% price drop
January
Most popular
Good to know
+1
Good to know
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Top stopover airports
Hanoi Noibai (HAN)
Cheapest • Avg ฿7,148 (return)
Guangzhou Baiyun (CAN)
Shortest trip • 9h 14m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Seoul to Bangkok (SEL-BKK)

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

Recent return flight deals from Seoul to Bangkok

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SEL  Seoul All airports-TH1 Glasgow Thorntonhall
5982 kmmulti-stop
Multiple Airlines Logo
TH1  Glasgow Thorntonhall-SEL Seoul All airports
5982 kmmulti-stop
Multiple Airlines
Booking Insights

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

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

What is the cheapest Seoul to Bangkok flight route?

Seoul Gimpo Intl Airport (GMP) to Bangkok Suvarnabhumi Airport (BKK) is the cheapest Seoul to Bangkok route, averaging ฿7,360 return. Other Seoul to Bangkok routes average ฿20,608, based on KAYAK data over the past 12 months.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seoul to Bangkok. It’s 3% cheaper than the average day, while Friday is the most expensive, with prices 5% higher.

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

•March is the cheapest month to fly from Seoul to Bangkok at ฿6,850 return.
•June (฿11,575) and July (฿11,372) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 68% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seoul to Bangkok the cheapest?

Flights from Seoul to Bangkok are cheapest 6 weeks before departure. Booking in this window typically costs about 14% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Seoul to Bangkok flights

Low season

May
Beat the crowds with an average 39% drop in traveller numbers.
The most popular month to fly with an average 44% increase in traveller numbers.

When to book flights from Seoul to Bangkok

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

Your Seoul to Bangkok 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 Seoul to Bangkok?

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

    • Earliest: departs at 07:10 and lands at 13:17
    • Latest: departs at 20:15 and lands at 02:22.

    The flight takes about 6h 07m.

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

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

    • Economy class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Seoul to Bangkok?

    A direct flight from Seoul to Bangkok takes 6h 07m, covering 5,982 km.

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

    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 Seoul to Bangkok flight?

    Return flights from Seoul to Bangkok range from ฿7,346 to ฿12,372, with an average of ฿9,554 over the past 12 months. Anything below ฿7,346 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 4% above the ฿9,554 route average. Book 6 weeks before departure for the lowest fares.

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

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average ฿7,148 return via Hanoi Noibai (HAN), compared with ฿9,605 for direct.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿510–฿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 Seoul to Bangkok spread across the day?

    Evening is the busiest departure period on Seoul to Bangkok flights, with 64% leaving in that window. Morning departures account for 29%, Afternoon flights for 7%, and Night flights for 0%.

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

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

  • What car rental options are available in Bangkok?

    Since Bangkok is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Bangkok Suvarnabhumi Airport (BKK) – daily rates from around ฿436:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • Hertz

    Near Bangkok Don Mueang Intl Airport (DMK) – daily rates from around ฿229:

    • Drive Car Rental
    • Alamo
    • Thai Rent
    • Chic Car Rent
    • Hertz

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

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

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

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

    • Hanoi Noibai (HAN) – 19% of one-stop connections
    • Da Nang (DAD) – 15% of one-stop connections
    • Hong Kong Intl (HKG) – 15% of one-stop connections
    • Qingdao Jiaodong Intl (TAO) – 11% of one-stop connections

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

    Yes. Flexible dates can save you up to 8% on flights from Seoul to Bangkok. Monday is the cheapest departure day at ฿9,348 return on average, while Friday is the most expensive at ฿10,090, a difference of ฿742.

    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 Seoul to Bangkok?

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

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

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

    Flying via Guangzhou Baiyun (CAN) gives the shortest average 1-stop total travel time of 9h 14m, compared to 9h 15m via Hong Kong Intl (HKG) and 9h 57m via Shanghai Pu Dong (PVG).

  • What is the time difference between Seoul and Bangkok?

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

  • What popular places can I visit in Bangkok?

    Some of the most popular sights in Bangkok are Victory Monument, Siam Square, and Pratunam. These are among the most viewed places in Bangkok on KAYAK.

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

    Among airlines operating Seoul to Bangkok flights:

    • Thai Vietjet Air: offers free seat selection
    • AIR PREMIA: offers free seat selection
    • Jeju Air: offers free seat selection
    • Thai Airways: offers free seat selection
    • Eastar Jet: 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 Seoul to Bangkok 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
    • AIR PREMIA: a cabin bag and a checked bag in Economy class
    • Jeju Air: 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 Seoul to Bangkok 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 Monday departure and avoid flying on Friday. On this route, Monday flights average ฿9,348, about ฿742 less than Friday fares (7% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 6 weeks before you fly. On this route, that window historically saves about 14% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seoul to Bangkok trip for March. Fares historically average ฿6,850 return in that month – typically ฿4,724 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Hanoi Noibai Airport (HAN) can be cheaper than flying direct. The cheapest stopover option averages ฿7,148 return on this route – about ฿2,457 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 Bangkok Suvarnabhumi Airport

    • Regency Bangkok Suvarnabhumi Airpor
    • Suvarnabhumi Ville Airport Hotel
    • Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)

    Near Bangkok Don Mueang Intl Airport

    • Amari Don Muang Airport Bangkok
    • The Royal Bee Apart Hotel

More options for your flight from Seoul to Bangkok

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

Car rentals in Bangkok
Hotels in Bangkok