฿4,174 Find Cheap Flights from Seoul to Bangkok – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to Bangkok departing on 13/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
฿7,944
Air China
Wed 2/12Fri 4/12
GMP - BKK • 1 stop
Cheapest direct flights
฿8,113
Typical prices: ฿5,790-฿9,594
T'way Air, Thai Vietjet Air
Tue 25/8Fri 28/8
ICN - BKK • Direct
Top airlines
Cheapest • from ฿7,944 (return)
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
Cheapest • 39% average savings
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 13% compared to booking last minute.
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seoul to Bangkok (SEL-BKK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Seoul to Bangkok that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seoul to Bangkok

Wed 2 Dec - Fri 4 Dec
Air China Logo
14:25 - 00:10
GMP
-
BKK
11h 45m
1 stop
Air China Logo
01:30 - 13:05
BKK
-
GMP
9h 35m
1 stop
฿7,944Air China
Tue 25 Aug - Sun 30 Aug
Multiple Airlines Logo
18:00 - 22:05
ICN
-
BKK
6h 05mdirect
Multiple Airlines Logo
02:25 - 10:00
BKK
-
ICN
5h 35mdirect
฿8,113Multiple Airlines
Mon 31 Aug - Mon 7 Sep
Vietnam Airlines Logo
18:05 - 10:50
ICN
-
BKK
18h 45m
1 stop
Vietnam Airlines Logo
11:55 - 05:50
BKK
-
ICN
15h 55m
1 stop
฿8,146Vietnam Airlines
Mon 31 Aug - Thu 3 Sep
T'way Air Logo
18:00 - 22:05
ICN
-
BKK
6h 05mdirect
T'way Air Logo
00:05 - 07:40
BKK
-
ICN
5h 35mdirect
฿8,180T'way Air
Thu 20 Aug - Tue 25 Aug
Multiple Airlines Logo
20:05 - 00:10
ICN
-
BKK
6h 05mdirect
Multiple Airlines Logo
02:25 - 10:00
BKK
-
ICN
5h 35mdirect
฿8,214Multiple Airlines
Sun 30 Aug - Thu 3 Sep
T'way Air Logo
18:00 - 22:05
ICN
-
BKK
6h 05mdirect
T'way Air Logo
00:05 - 07:40
BKK
-
ICN
5h 35mdirect
฿8,247T'way Air
Sun 16 Aug - Wed 26 Aug
Thai Vietjet Air Logo
12:10 - 16:00
ICN
-
BKK
5h 50mdirect
Thai Vietjet Air Logo
02:25 - 10:00
BKK
-
ICN
5h 35mdirect
฿8,315Thai Vietjet Air
Tue 18 Aug - Tue 25 Aug
Thai Vietjet Air Logo
12:10 - 16:00
ICN
-
BKK
5h 50mdirect
Thai Vietjet Air Logo
02:25 - 10:00
BKK
-
ICN
5h 35mdirect
฿8,348Thai Vietjet Air
Tue 6 Oct - Thu 15 Oct
Thai AirAsia Logo
12:05 - 15:50
ICN
-
DMK
5h 45mdirect
Thai AirAsia Logo
02:45 - 10:35
DMK
-
ICN
5h 50mdirect
฿8,651Thai AirAsia
Thu 15 Oct - Thu 29 Oct
Thai AirAsia Logo
12:05 - 15:50
ICN
-
DMK
5h 45mdirect
Thai AirAsia Logo
02:30 - 10:05
DMK
-
ICN
5h 35mdirect
฿8,887Thai AirAsia
Booking Insights

KAYAK's insights & trends for Seoul to Bangkok flights

Get data-powered insights and trends into flights from Seoul to Bangkok to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Seoul to Bangkok?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Seoul to Bangkok departing in December.

Flight prices are typical for this route right now.

Flights to Bangkok from Seoul usually cost between ฿7,624 and ฿11,496 in December.
The lowest price found in the past 5 days was ฿7,944 on Air China (2 Dec–4 Dec).

What is the cheapest Seoul to Bangkok flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Seoul to Bangkok costs ฿4,926 on the route between Incheon Intl Airport (ICN) and Bangkok Don Mueang Intl Airport (DMK). Over the past month, this route was, on average, 39% cheaper than other Seoul-Bangkok routes. It is also the most popular route.

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

The average price of all round-trip flights from Seoul to Bangkok clicked on KAYAK for each day over the last 12 months.

For Seoul to Bangkok, Friday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Bangkok back to Seoul, the best deals are generally found on Sunday, with Tuesday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seoul to Bangkok, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seoul to Bangkok is September, where tickets cost ฿5,386 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is ฿11,176 and ฿11,075 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seoul to Bangkok, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seoul to Bangkok, you should book around 2 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Cheapest flight

฿4,174
Flight from Seoul Incheon Airport to Bangkok Suvarnabhumi Airport

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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seoul to Bangkok

  • What is the cheapest flight from Seoul to Bangkok?

    In the last 5 days, the lowest price for a flight from Seoul to Bangkok was ฿4,174 for a one-way ticket and ฿7,944 for a return.

  • Which airports will I be using when flying from Seoul to Bangkok?

    When flying out of Seoul you will be using one of these airports: Seoul Gimpo Intl or Incheon Intl. You will be landing at one of these airports: Bangkok Suvarnabhumi or Bangkok Don Mueang Intl.

  • Which aircraft models fly most regularly from Seoul to Bangkok?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Seoul to Bangkok?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seoul to Bangkok.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul to Bangkok?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangkok from Seoul is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seoul to Bangkok?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Bangkok with an airline and back to Seoul with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seoul to Bangkok?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bangkok from Seoul up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seoul to Bangkok

 
See real verified KAYAK customer reviews for airlines flying from Seoul to Bangkok. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seoul to Bangkok? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
AIR PREMIAOverall score based on 101 reviews
6.9Entertainment
8.8Crew
7.2Food
8.1Comfort
8.0Boarding
Airline reviews

Courteous crew and effective service on-board. Good leg room. Areas for improvement: 1. Limited menu meal menu options. During checking there was no means provided to select meal option. On our return flight the first meal had Pork and Beef options only. Fortunately the second meal had Chicken as an option. Otherwise we would have gone without meal through 13+ hrs of journey, 2. Limited choice and very limited number of movies and TV shows.

8.0 ExcellentAnonymous, May 2026
ICN - EWR
Read more AIR PREMIA reviews

Courteous crew and effective service on-board. Good leg room. Areas for improvement: 1. Limited menu meal menu options. During checking there was no means provided to select meal option. On our return flight the first meal had Pork and Beef options only. Fortunately the second meal had Chicken as an option. Otherwise we would have gone without meal through 13+ hrs of journey, 2. Limited choice and very limited number of movies and TV shows.

I booked this airline twice. The first time, they cancelled the flight due to destination weather condition but without offering any optional flight but only a cancelation notice sent via SMS. I had no choice but to re-book United airline with the same travel date and destination. (no impact on the weather condition Air Premia claimed) The second time, my husband missed the flight due to local traffic in Seoul. Normally, all major airline would helped you to re-book the same flight next day with changing fee only. But Air Premia offered nothing and only requested my husband to re-book a full price ticket.

Don't splurge for the Premium Wide Economy. They compare it to business class. This is not business class, and the seats are very uncomfortable.

For the second meal, the different food choices ran out both times so we were only offered one.

The crews were friendly, professional and courteous. Checking in was easy and smooth. The best part is, as we all know, the price.

Food quality is poor. Flight attendants are very friendly and professional.

I flew on Zip Air on the way to Asia so I can compare. The two airlines are night and day. Air Premia was so amazing compared to Zip Air. I have flown Korean Air in the past and I honestly don’t know the difference between Air Premia and the “non-budget” airlines. My Air Premia flight provided me two bags whereas I had to pay for Zip Air. On my under 11 hour flight, we were provided two full meals! The flight attendants were so kind and polite.

For the price, the overall experience was what I expected. The prices were fair and competitive, the staff friendly and more responsive than other airlines, and seating spacious. The downside was food portion size, but I'll gladly pay a few dollars more for the hot noodles or other supplemental snacks, given the more affordable ticket prices. I don't mind the absence of Hollywood movie programming if that leads to inflated ticket prices. Wi-Fi worked well. In addition to spacious seating for the Wide Premiium, I'd suggest foot rests to complement the calf rests. There're problems with booking Air Premia tickets at the home website. The underlying app engine won't process non-Korean credit cards, which is a major oversight, probably hurting the company's bottom line. I can go to Kayak or a third-party website to book Air Premia tickets, but it's an awkward work-around when other airlines don't have to resort to this tactic.

As it's a budget airline it's pretty basic. But the quality of crew and plane is excellent.

Maybe the reimbursement voucher should have been larger than a 10k won. That voucher is only for refreshments. The flight was delayed or pushed to more than 5 hours. It should be more than just 10k won and it was already past midnight. Some people or passengers like who was already there 5 hours prior to the original flight departure. 4pm** That was the only unfortunate thing about it . Other than that it was good .

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

Cabin class types available on flights from Seoul to Bangkok

Cabin classes available on flights from Seoul to Bangkok. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.