฿4,429 Find Cheap Flights from Bangkok to Seoul – Compare and Save

Among airlines operating Bangkok to Seoul flights:

• Thai Vietjet Air: offers free seat selection
• Thai Airways: offers free seat selection
• Asiana Airlines: offers free seat selection
• Korean Air: offers extra legroom; offers free seat selection

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

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

• Korean Air
• Thai Airways
• Asiana Airlines
• Trinity Airways
• Thai Vietjet Air
• Jeju Air

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).

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

• AIR PREMIA: a cabin bag and a checked bag in Economy class
• Jeju Air: a cabin bag and a checked bag in Economy class
• Thai Vietjet Air: a cabin bag and a checked bag in Economy class

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

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

• Economy class
• Premium Economy Class
• Business Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average ฿8,010 return via Jinan (TNA), compared with ฿9,888 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿77–฿3,330 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

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

• Hong Kong Intl (HKG) – 44% of one-stop connections
• Hanoi Noibai (HAN) – 12% of one-stop connections
• Xiamen Gaoqi Intl (XMN) – 12% of one-stop connections
• Beijing Capital (PEK) – 10% of one-stop connections

Hong Kong Intl (HKG) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 13% on the Bangkok to Seoul route. Tuesday is the cheapest departure day at ฿9,390 return on average, while Sunday is the most expensive at ฿10,756, a difference of ฿1,365. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Night is the busiest departure period on Bangkok to Seoul flights, with 76% leaving in that window. Morning departures account for 16%, Afternoon flights for 8%, and Evening flights for 0%.

Gyeongbokgung Palace is one of the most viewed places in Seoul on KAYAK.

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

• Earliest: departs at 00:05 and lands at 05:31
• Latest: departs at 23:55 and lands at 05:21.

The flight takes about 5h 26m.

Last-minute fares on this route (booked within 2 weeks of departure) run 4% above the route average of ฿9,874. Book 3 weeks before departure for the lowest fares.

A direct flight from Bangkok to Seoul takes 5h 26m, covering 5,982 km.

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.

One-way fares from Bangkok to Seoul are currently lower than usual. Average one-way flight prices are about ฿4,532, which is 26% below the typical average for this route.

Flying via Beijing Capital (PEK) gives the shortest average 1-stop total travel time of 9h 00m, compared to 9h 05m via Da Nang (DAD) and 9h 50m via Guangzhou Baiyun (CAN).

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

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 ฿401:

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

Near Seoul Gimpo Intl Airport (GMP) – daily rates from around ฿385:

• Yesaway
• Hi Rent
• Wheego
• Europcar
• Bella Jeju

Return flights from Bangkok to Seoul range from ฿7,612 to ฿12,715, with an average of ฿9,874 over the past 12 months. Anything below ฿7,612 counts as a good deal.

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