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Southeast Asia

$63+ Cheap flights from Seoul (SEL) to Southeast Asia

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$136
(Mytrip)

One-way from

$63
(Kiwi.com)

Popular in

January

Cheapest in

June

Average price

$176
From Seoul (SEL) to Southeast Asia
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One-way flight from Seoul (SEL) to Southeast Asia
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Highest demand for flights based on searches. 14% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:05 pmICN - BKK
1 stop18h 45mVietnam Airlines
Sat 9/207:05 pmBKK - ICN
1 stop19h 30mVietnam Airlines
Deal found 6/12$130
This VietJet Air deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VietJet Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:15 amICN - CXR
Nonstop4h 50mVietJet Air
Sun 9/149:50 pmCXR - ICN
Nonstop4h 40mVietJet Air
Deal found 6/10$140
This Jeju Air deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/88:05 pmICN - BKK
Nonstop5h 54mJeju Air
Wed 7/161:00 amBKK - ICN
Nonstop5h 40mJeju Air
Deal found 6/11$145
This T'way Air deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure T'way Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/157:00 pmICN - CXR
Nonstop5h 30mT'way Air
Thu 7/1711:30 pmCXR - ICN
Nonstop5h 40mT'way Air
Deal found 6/12$160
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/176:45 amICN - SGN
Nonstop5h 10mVietJet Air
Tue 7/222:35 amSGN - ICN
Nonstop5h 05mVietJet Air
Deal found 6/11$164
This T'way Air deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure T'way Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/146:00 pmICN - BKK
Nonstop6h 35mT'way Air
Thu 6/1912:05 amBKK - ICN
Nonstop5h 35mT'way Air
Deal found 6/9$165
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/65:15 pmICN - BKK
Nonstop6h 05mAir Busan
Fri 9/1210:20 pmBKK - ICN
Nonstop5h 45mAir Busan
Deal found 6/12$173
This Jin Air deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jin Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:55 pmICN - BKK
Nonstop5h 50mJin Air
Wed 9/1012:55 amBKK - ICN
Nonstop5h 30mJin Air
Deal found 6/10$174
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:05 pmICN - KUL
1 stop25h 55mVietnam Airlines
Sun 10/267:50 pmKUL - ICN
1 stop19h 10mVietnam Airlines
Deal found 6/11$176
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/178:15 amICN - KUL
Nonstop6h 30mAirAsia X
Wed 6/2511:00 amKUL - ICN
Nonstop7h 05mAirAsia X
Deal found 6/10$177
This Jetabroad deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/159:30 pmICN - CXR
Nonstop5h 35mAir Busan
Fri 7/182:05 amCXR - ICN
Nonstop5h 10mAir Busan
Deal found 6/11$186
This Mytrip deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1910:20 amICN - SGN
1 stop26h 40mChina Southern
Sat 6/212:35 amSGN - ICN
1 stop10h 50mChina Southern
Deal found 6/12$192

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Seoul to Southeast Asia that are best for you.

Fly from

Seoul

Fly to

Southeast Asia

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 9/16

6:05 pm-10:50 am

1 stop18h 45m

Bangkok Suvarnabhumi

Sat 9/20

7:05 pm-4:35 pm

1 stop19h 30m

$130

IncheonNha Trang

ICN - CXR

ICNCXR

Incheon Intl

Mon 9/8

6:15 am-9:05 am

Nonstop4h 50m

Nha Trang Cam Ranh

Sun 9/14

9:50 pm-4:30 am

Nonstop4h 40m

$140

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 7/8

8:05 pm-11:59 pm

Nonstop5h 54m

Bangkok Suvarnabhumi

Wed 7/16

1:00 am-8:40 am

Nonstop5h 40m

$145

IncheonHo Chi Minh City

ICN - SGN

ICNSGN

Incheon Intl

Thu 7/17

6:45 am-9:55 am

Nonstop5h 10m

Ho Chi Minh City

Tue 7/22

2:35 am-9:40 am

Nonstop5h 05m

$164

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 7/3

6:00 pm-10:35 pm

Nonstop6h 35m

Bangkok Suvarnabhumi

Mon 7/7

12:05 am-7:40 am

Nonstop5h 35m

$172

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 9/6

5:15 pm-9:20 pm

Nonstop6h 05m

Bangkok Suvarnabhumi

Fri 9/12

10:20 pm-6:05 am

Nonstop5h 45m

$173

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 9/1

7:55 pm-11:45 pm

Nonstop5h 50m

Bangkok Suvarnabhumi

Wed 9/10

12:55 am-8:25 am

Nonstop5h 30m

$174

IncheonKuala Lumpur

ICN - KUL

ICNKUL

Incheon Intl

Wed 10/22

6:05 pm-7:00 pm

1 stop25h 55m

Kuala Lumpur Intl

Sun 10/26

7:50 pm-4:00 pm

1 stop19h 10m

$176

IncheonKuala Lumpur

ICN - KUL

ICNKUL

Incheon Intl

Wed 7/9

11:30 am-9:30 pm

1 stop11h 00m

Kuala Lumpur Intl

Sun 7/20

11:05 pm-7:00 am

Nonstop6h 55m

$177

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 8/25

11:05 am-5:05 pm

1 stop8h 00m

Bangkok Suvarnabhumi

Sat 8/30

2:00 pm-7:55 am

1 stop15h 55m

$185

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 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 round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Seoul to Southeast Asia

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

Currently, March is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $953). Flying from Seoul to Southeast Asia in December is currently the most expensive (average of $1,574). 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 June 12, 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 June 12, 2025.

The most flights from SEL to zzYJX are scheduled on a Wednesday (34 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 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 0.4 - 15.7 inches per month. July is typically the wettest month, when rainfall can reach 15.7 in. February is typically the driest time to visit Southeast Asia when rainfall is around 0.4 in.

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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Seoul to Southeast Asia, such as EVA Air, Korean Air and Japan Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,088 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,490 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
738 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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?

    The cheapest airlines for a one-way flight from Seoul to Southeast Asia are VietJet Air ($63), T'way Air ($71), and Vietnam Airlines ($77).

  • What are the most popular routes from Seoul to Southeast Asia?

    The most popular flight routes from Seoul to Southeast Asia are Incheon Intl - Bangkok Suvarnabhumi, Seoul Gimpo Intl - Bangkok Suvarnabhumi and Incheon Intl - Jakarta Soekarno-Hatta Intl.

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

    Consider T'way Air (100%), Oman Air (94%) or EL AL (92%) when booking your flight. These represent the most reliable airlines when flying from Seoul to Southeast Asia.

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

    Looking at all options, your cheapest flight can be booked for $65. While the most popular route (Incheon Intl - Bangkok Suvarnabhumi) can be booked for $188 on average our data indicates $443 when flying from Seoul to Southeast Asia.

  • 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 vacation 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, March is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $953). Flying from Seoul to Southeast Asia in December is currently the most expensive (average of $1,574). 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

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Alternative routes for Seoul to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seoul to Southeast Asia

Discover the top 10 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest$60Average$235FlexibilityNo cancel feeOn-time86%
T'way AirCheapest$64Average$247FlexibilityNo cancel feeOn-time88%
ScootCheapest$79Average$306FlexibilityNo cancel feeOn-timeN/A
Hahn Air SystemsCheapest$103Average$350FlexibilityNo cancel feeOn-timeN/A
Air SeoulCheapest$104Average$271FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$111Average$289FlexibilityNo cancel feeOn-timeN/A
AirAsiaCheapest$115Average$238FlexibilityNo cancel feeOn-time66%
Cebu PacificCheapest$130Average$229FlexibilityNo cancel feeOn-time64%
Philippines AirAsiaCheapest$130Average$213FlexibilityNo cancel feeOn-time53%
Vietnam AirlinesCheapest$144Average$257FlexibilityNo cancel feeOn-time81%

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