฿4,406 Find Cheap Flights from Bangkok to Seoul Incheon Airport – Compare and Save

Among airlines operating Bangkok to Incheon Intl Airport flights:

• Thai Airways: offers free seat selection
• Thai Vietjet Air: 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.

11 airlines operate flights between Bangkok and Incheon Intl Airport. 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 Incheon Intl Airport may depart from several airports in Bangkok area, including Bangkok Suvarnabhumi (BKK) and Bangkok Don Mueang Intl (DMK). Flights usually arrive at 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
• Thai Airways: 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 Incheon Intl Airport:

• Economy class
• Premium Economy Class
• Business Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average ฿7,909 return via Jinan (TNA), compared with ฿9,764 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿494–฿3,288 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 Incheon Intl Airport most commonly connect through:

• Hong Kong Intl (HKG) – 46% of one-stop connections
• Hanoi Noibai (HAN) – 13% of one-stop connections
• Xiamen Gaoqi Intl (XMN) – 13% of one-stop connections
• Beijing Capital (PEK) – 7% 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 Incheon Intl Airport route. Tuesday is the cheapest departure day at ฿9,272 return on average, while Sunday is the most expensive at ฿10,620, a difference of ฿1,348. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Bangkok to Incheon Intl Airport route, 25% of flights were delayed in the past 3 months, with delays averaging 2 hours 12 minutes.

Night is the busiest departure period on Bangkok to Incheon Intl Airport flights, with 84% leaving in that window. Morning departures account for 16%, Afternoon flights for 0%, and Evening flights for 0%.

Songdo Convensia is one of the most viewed places in Incheon Intl Airport on KAYAK.

These are the earliest and latest flight times available from Bangkok to Incheon Intl Airport:

• Earliest: departs at 00:05 and lands at 05:33
• Latest: departs at 23:55 and lands at 05:23.

The flight takes about 5h 28m.

Last-minute fares on this route (booked within 2 weeks of departure) run 4% above the route average of ฿9,743. Book 3 weeks before departure for the lowest fares.

A direct flight from Bangkok to Incheon Intl Airport takes 5h 28m, covering 5,911 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 Incheon Intl Airport are currently lower than usual. Average one-way flight prices are about ฿4,465, which is 26% below the typical average for this route.

Thai Lion Air is slightly above the route average for timely arrivals, while AIR PREMIA has a lower on-time arrival rate. On-time arrival rates on Bangkok to Incheon Intl Airport flights are:

• Thai Lion Air: 97% on time
• AIR PREMIA: 94% on time
• Air Busan: 91% on time

On average, flights on this route are punctual 75% of the time.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Beijing Capital (PEK) gives the shortest average 1-stop total travel time of 8h 44m, compared to 9h 05m via Da Nang (DAD) and 9h 50m via Guangzhou Baiyun (CAN).

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

Incheon Intl Airport (ICN) hosts 5 major car hire companies, with daily rates starting from around ฿396 for economy cars. Top options include:
• WECAR
• Wheego
• Yesaway
• Alamo
• Enterprise Rent-A-Car

Return flights from Bangkok to Incheon Intl Airport range from ฿7,517 to ฿12,540, with an average of ฿9,743 over the past 12 months. Anything below ฿7,517 counts as a good deal.

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