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Southeast Asia

$61+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$134
(Mytrip)

One-way from

$61
(VietJet Air)

Popular in

January

Cheapest in

June

Average price

$201
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. 15% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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.
dom. 9/1410:05 amICN - BKK
1 stop26h 45mVietnam Airlines
dom. 9/2111:55 amBKK - ICN
1 stop26h 40mVietnam Airlines
Deal found 7/29$134
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
vie. 9/126:25 amICN - HAN
Nonstop4h 30mVietJet Air
jue. 9/181:40 amHAN - ICN
Nonstop4h 15mVietJet Air
Deal found 7/28$148
This AIR PREMIA deal was found by Cheapflights users on 7/30. 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 AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/284:50 pmICN - BKK
Nonstop6h 20mAIR PREMIA
jue. 9/410:45 pmBKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 7/30$149
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/285:30 pmICN - BKK
Nonstop5h 50mEastar Jet
jue. 9/410:20 pmBKK - ICN
Nonstop5h 40mEastar Jet
Deal found 7/29$153
This Jeju Air deal was found by Cheapflights users on 7/30. 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.
sáb. 9/138:05 pmICN - BKK
Nonstop5h 54mJeju Air
jue. 9/181:00 amBKK - ICN
Nonstop5h 40mJeju Air
Deal found 7/30$157
This Jin Air deal was found by Cheapflights users on 7/31. 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.
mar. 8/57:55 pmICN - BKK
Nonstop5h 50mJin Air
lun. 8/1112:55 amBKK - ICN
Nonstop5h 30mJin Air
Deal found 7/31$158
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/126:05 pmICN - BKK
1 stop19h 15mMultiple Airlines
lun. 2/97:20 amBKK - ICN
Nonstop5h 25mMultiple Airlines
Deal found 7/30$162
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/305:15 pmICN - BKK
Nonstop6h 05mAir Busan
jue. 9/410:20 pmBKK - ICN
Nonstop5h 45mAir Busan
Deal found 7/31$166
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/66:00 pmICN - BKK
Nonstop6h 35mT'way Air
mar. 8/1212:05 amBKK - ICN
Nonstop5h 35mT'way Air
Deal found 7/30$170
This Jeju Air deal was found by Cheapflights users on 7/30. 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.
vie. 9/268:45 pmICN - HAN
Nonstop5h 00mJeju Air
vie. 10/312:45 amHAN - ICN
Nonstop4h 45mJeju Air
Deal found 7/30$172
This Booking.com deal was found by Cheapflights users on 7/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/54:45 pmICN - HAN
1 stop8h 30mMultiple Airlines
lun. 9/81:40 amHAN - ICN
Nonstop4h 15mMultiple Airlines
Deal found 7/31$182
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
vie. 10/249:15 pmICN - SGN
Nonstop5h 15mVietJet Air
jue. 10/3012:05 pmSGN - ICN
Nonstop5h 20mVietJet Air
Deal found 7/31$182

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 julio 31, 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

dom. 9/14

6:05 pm-10:50 am

1 stop18h 45m

Bangkok Suvarnabhumi

dom. 9/21

11:55 am-4:35 pm

1 stop26h 40m

$134

IncheonHanoi

ICN - HAN

ICNHAN

Incheon Intl

vie. 9/12

6:25 am-8:55 am

Nonstop4h 30m

Hanoi Noibai

jue. 9/18

1:40 am-7:55 am

Nonstop4h 15m

$148

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

jue. 8/28

4:50 pm-9:10 pm

Nonstop6h 20m

Bangkok Suvarnabhumi

jue. 9/4

10:45 pm-6:25 am

Nonstop5h 40m

$149

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

mar. 9/16

5:15 pm-9:20 pm

Nonstop6h 05m

Bangkok Suvarnabhumi

mar. 9/23

10:20 pm-6:05 am

Nonstop5h 45m

$156

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

sáb. 9/13

8:05 pm-11:59 pm

Nonstop5h 54m

Bangkok Suvarnabhumi

jue. 9/18

1:00 am-8:40 am

Nonstop5h 40m

$157

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

vie. 12/12

6:05 pm-11:20 am

1 stop19h 15m

Bangkok Suvarnabhumi

lun. 2/9

7:20 am-2:45 pm

Nonstop5h 25m

$162

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

sáb. 8/30

6:00 pm-10:35 pm

Nonstop6h 35m

Bangkok Suvarnabhumi

vie. 9/5

12:05 am-7:40 am

Nonstop5h 35m

$171

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

dom. 8/10

7:55 pm-11:45 pm

Nonstop5h 50m

Bangkok Suvarnabhumi

jue. 8/21

12:55 am-8:25 am

Nonstop5h 30m

$172

IncheonHanoi

ICN - HAN

ICNHAN

Incheon Intl

vie. 9/26

8:45 pm-11:45 pm

Nonstop5h 00m

Hanoi Noibai

vie. 10/3

12:45 am-7:30 am

Nonstop4h 45m

$172

IncheonHanoi

ICN - HAN

ICNHAN

Incheon Intl

vie. 9/5

4:45 pm-11:15 pm

1 stop8h 30m

Hanoi Noibai

lun. 9/8

1:40 am-7:55 am

Nonstop4h 15m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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, September is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $946). Flying from Seoul to Southeast Asia in December is currently the most expensive (average of $1,563). 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 julio 31, 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 julio 31, 2025.

The most flights from SEL to zzYJX are scheduled on a Wednesday (38 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).

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 julio 31, 2025.
Get a feel of what it's like to fly with EVA Air, Korean Air, and AIR PREMIA from Seoul to Southeast Asia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

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
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

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
1,121 reviews
EVA Air
8.4
Very good
1,220 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

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
AIR PREMIA
8.2
Very good
59 reviews
EVA Air
8.4
Very good
1,220 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

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
Asiana Airlines
8.2
Very good
468 reviews
EVA Air
8.4
Very good
1,220 reviews

Crew

8.6

Food

8.1

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Overall

8.4

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 ($61), Jeju Air ($72), and Eastar Jet ($78).

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

    The most popular flight routes from Seoul to Southeast Asia are Seoul Gimpo Intl - Bangkok Suvarnabhumi, Incheon Intl - Bangkok Suvarnabhumi and Incheon Intl - Ho Chi Minh City.

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

    Consider Oman Air (100%), T'way Air (100%) or AIR PREMIA (100%) 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 $87. While the most popular route (Seoul Gimpo Intl - Bangkok Suvarnabhumi) can be booked for $252 on average our data indicates $524 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, September is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $946). Flying from Seoul to Southeast Asia in December is currently the most expensive (average of $1,563). 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest$60Average$227FlexibilityNo cancel feeOn-time86%
T'way AirCheapest$64Average$244FlexibilityNo cancel feeOn-time88%
ScootCheapest$79Average$307FlexibilityNo cancel feeOn-timeN/A
Hahn Air SystemsCheapest$103Average$348FlexibilityNo cancel feeOn-timeN/A
Jin AirCheapest$104Average$280FlexibilityNo cancel feeOn-time78%
Air SeoulCheapest$104Average$246FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$108Average$277FlexibilityNo cancel feeOn-timeN/A
AirAsiaCheapest$122Average$242FlexibilityNo cancel feeOn-time66%
Cebu PacificCheapest$130Average$229FlexibilityNo cancel feeOn-time64%
Philippines AirAsiaCheapest$131Average$218FlexibilityNo cancel feeOn-time53%

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