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Cheap flights from Seoul to Southeast Asia from $151

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Seoul to Southeast Asia

Keep the following information in mind while searching for Seoul to Southeast Asia flight deals. Data was last updated 21 February 2025.

Round-trip from

$301

One-way from

$151

Popular in

January

Cheapest in

June

Average price

$473
Jeju Air
  • Jeju Air
  • 6/4-8/4
  • Nonstop
  • 11h 34m total
  • Seoul to Southeast Asia
Search Deals
Vietnam Airlines
  • Vietnam Airlines
  • 25/4
  • 1 total stop
  • 22h 40m total
  • Seoul to Southeast Asia
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($146 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Seoul to Southeast Asia

Cheapest flights from Seoul to Southeast Asia
Explore the most affordable flight options available from Seoul to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Fri 9/520:05ICN - BKK
Nonstop5h 54mJeju Air
Tue 13/501:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 20/2$301
Mon 29/910:05ICN - BKK
1 stop13h 00mVietnam Airlines
Mon 13/1018:05BKK - ICN
1 stop9h 55mVietnam Airlines
Deal found 21/2$303
Wed 23/419:55ICN - BKK
Nonstop5h 50mJin Air
Mon 28/400:55BKK - ICN
Nonstop5h 30mJin Air
Deal found 19/2$307
Thu 8/518:00ICN - BKK
Nonstop6h 35mT'way Air
Fri 9/500:05BKK - ICN
Nonstop5h 35mT'way Air
Deal found 20/2$309
Wed 5/314:55ICN - BKK
1 stop13h 10mShenzhen Airlines
Wed 19/303:05BKK - ICN
1 stop10h 35mShenzhen Airlines
Deal found 20/2$387
Wed 26/317:25ICN - BKK
Nonstop6h 00mAIR PREMIA
Sun 30/322:45BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 19/2$389
Wed 29/1007:00ICN - DPS
1 stop32h 35mVietJet Air
Wed 12/1115:35DPS - ICN
1 stop26h 50mVietJet Air
Deal found 20/2$420
Mon 3/317:05ICN - BKK
Nonstop6h 20mEastar Jet
Sat 8/322:25BKK - ICN
Nonstop5h 55mEastar Jet
Deal found 20/2$428
Sat 1/315:00ICN - BKK
1 stop11h 10mCathay Pacific
Sun 16/306:40BKK - ICN
1 stop9h 55mCathay Pacific
Deal found 20/2$434
Sat 15/300:10ICN - DPS
1 stop19h 15mMalaysia Airlines
Fri 21/316:25DPS - ICN
1 stop13h 05mMalaysia Airlines
Deal found 20/2$437
Sun 9/300:10ICN - BKK
1 stop19h 30mMalaysia Airlines
Thu 27/305:40BKK - ICN
1 stop14h 30mMalaysia Airlines
Deal found 19/2$437
Sun 9/322:05ICN - BKK
1 stop29h 50mShandong Airlines
Fri 14/303:05BKK - ICN
1 stop29h 40mShandong Airlines
Deal found 21/2$442

Find flights from Seoul to Southeast Asia within your budget

Customise your flight search to find flights from Seoul to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 21 February 2025.

Fly from

Seoul

Fly to

Southeast Asia

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 9/5

20:05-23:59

Nonstop5h 54m

Bangkok Suvarnabhumi

Tue 13/5

01:00-08:40

Nonstop5h 40m

$301

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 23/4

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Mon 28/4

00:55-08:25

Nonstop5h 30m

$307

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 8/5

18:00-22:35

Nonstop6h 35m

Bangkok Suvarnabhumi

Fri 9/5

00:05-07:40

Nonstop5h 35m

$309

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 11/3

18:05-14:45

1 stop22h 40m

Bangkok Suvarnabhumi

Wed 26/3

19:00-05:30

1 stop8h 30m

$351

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 5/3

14:55-02:05

1 stop13h 10m

Bangkok Suvarnabhumi

Wed 19/3

03:05-15:40

1 stop10h 35m

$387

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 26/3

17:25-21:25

Nonstop6h 00m

Bangkok Suvarnabhumi

Sun 30/3

22:45-06:25

Nonstop5h 40m

$389

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 3/3

17:05-21:25

Nonstop6h 20m

Bangkok Suvarnabhumi

Sat 8/3

22:25-06:20

Nonstop5h 55m

$428

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Sat 15/3

00:10-18:25

1 stop19h 15m

Denpasar Bali Ngurah Rai

Thu 20/3

19:15-06:30

1 stop10h 15m

$437

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 9/3

00:10-16:05

1 stop17h 55m

Bangkok Suvarnabhumi

Thu 13/3

17:05-06:30

1 stop11h 25m

$437

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 9/3

22:05-01:55

1 stop29h 50m

Bangkok Suvarnabhumi

Fri 14/3

03:05-10:45

1 stop29h 40m

$442

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 44 results
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Best time to book a flight from Seoul to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Seoul with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seoul to Southeast Asia

Get recent, data-driven insights about flights from Seoul to Southeast Asia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seoul to Southeast Asia?

Currently, February is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $489). Flying from Seoul to Southeast Asia in December is currently the most expensive (average of $911). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEL to YJX?

Find hourly flight availability from Seoul to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

When flying from Seoul to Southeast Asia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seoul to Southeast Asia

Explore weekly flight availability from Seoul to Southeast Asia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 February 2025.

The most flights from SEL to zzYJX are scheduled on a Wednesday (43 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (34 on average).

Rainfall in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

Temperature in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated 21 February 2025.
Peruse reviews from past customers who have flown with Korean Air, AIR PREMIA and Garuda Indonesia from Seoul to Southeast Asia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air
8.4
Very Good
1,037 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

AIR PREMIA
8.2
Very Good
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Garuda Indonesia
8.1
Very Good
76 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Singapore Airlines
8.1
Very Good
1,299 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Crew

8.7

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Related info for your journey

Find useful and relevant information for your journey from Seoul to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Seoul to Southeast Asia one-way?

    One-way options have recently been found by users for as low as $151 on Vietnam Airlines. Other airlines that offer cheap prices include Jin Air from $152 and Jeju Air from $154 one-way.

  • What are the most reliable airlines from Seoul to Southeast Asia?

    No one likes to see their flight delayed. When booking a flight from Seoul to Southeast Asia consider choosing Air Busan(90%), Eastar Jet(83%) or Turkish Airlines(68%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seoul to Southeast Asia?

    Looking for the cheapest flight from Seoul to Southeast Asia? While on average our users pay $298, our data indicates the cheapest price to be $199. The most popular route (Incheon Intl - Denpasar Bali Ngurah Rai), is priced around $456.

  • Can I find deals for flights from Seoul to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Seoul to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Southeast Asia.

  • Can I find deals for business class flights from Seoul to Southeast Asia?

    Yes. Cheapflights offers flight deals from Seoul to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seoul to Southeast Asia?

    Currently, February is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $489). Flying from Seoul to Southeast Asia in December is currently the most expensive (average of $911). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Seoul to Southeast Asia

Discover the top 5 airlines that operate flights from Seoul to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
T'way AirCheapest$187Average$376FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Thai AirAsia XCheapest$269Average$348FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
China EasternCheapest$308Average$479FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest$441Average$449FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest$521Average$594FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

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When you search for this flight from Seoul to Southeast Asia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Can Cheapflights find flights from Seoul to Southeast Asia with no change fees?

Yes, we can. To see specific flights from Seoul to Southeast Asia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seoul to Southeast Asia become cheaper?

Yes! Start tracking prices for Seoul to Southeast Asia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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