Southeast Asia

$106+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
Jun 9 — Jun 161
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Cheap 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 May 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/6. 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 5/126:45 am
ICN
-
CXR
Nonstop4h 50m
Multiple Airlines
Thu 5/1412:05 am
CXR
-
ICN
Nonstop5h 05m
Multiple Airlines
Deal found 5/6$206
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Wed 6/242:15 am
ICN
-
MNL
Nonstop4h 25m
Cebu Pacific
Sun 6/2812:10 am
MNL
-
ICN
Nonstop4h 10m
Cebu Pacific
Deal found 5/6$209
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 5/198:55 pm
ICN
-
CXR
Nonstop5h 00m
Eastar Jet
Fri 5/221:10 am
CXR
-
ICN
Nonstop4h 45m
Eastar Jet
Deal found 5/7$210
This Super.com deal was found by Cheapflights users on 5/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/242:15 am
ICN
-
MNL
Nonstop4h 25m
Cebu Pacific
Thu 7/27:35 pm
MNL
-
ICN
Nonstop4h 10m
Cebu Pacific
Deal found 5/6$211
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:35 am
ICN
-
MNL
Nonstop4h 10m
Cebu Pacific
Mon 8/247:35 pm
MNL
-
ICN
Nonstop4h 10m
Cebu Pacific
Deal found 5/9$212
This CheapOair deal was found by Cheapflights users on 5/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/242:15 am
ICN
-
MNL
Nonstop4h 25m
Cebu Pacific
Mon 8/107:35 pm
MNL
-
ICN
Nonstop4h 10m
Cebu Pacific
Deal found 5/6$219
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Fri 6/56:45 am
ICN
-
CXR
Nonstop4h 50m
Multiple Airlines
Wed 6/1012:55 am
CXR
-
ICN
Nonstop5h 05m
Multiple Airlines
Deal found 5/8$220
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Wed 5/276:45 am
ICN
-
CXR
Nonstop4h 50m
Multiple Airlines
Wed 6/249:50 pm
CXR
-
ICN
Nonstop5h 15m
Multiple Airlines
Deal found 5/8$221
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 5/2611:40 am
ICN
-
SGN
Nonstop5h 15m
VietJet Air
Fri 6/1212:20 pm
SGN
-
ICN
Nonstop5h 05m
VietJet Air
Deal found 5/7$222
This CheapOair deal was found by Cheapflights users on 5/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:40 am
ICN
-
SGN
Nonstop5h 15m
Multiple Airlines
Wed 10/211:30 am
SGN
-
ICN
1 stop19h 10m
Multiple Airlines
Deal found 5/6$223
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Mon 6/86:45 am
ICN
-
CXR
Nonstop4h 50m
Multiple Airlines
Wed 6/1012:55 am
CXR
-
ICN
Nonstop5h 05m
Multiple Airlines
Deal found 5/8$224
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/252:15 am
ICN
-
MNL
Nonstop4h 25m
Multiple Airlines
Sun 7/511:20 pm
MNL
-
ICN
Nonstop4h 10m
Multiple Airlines
Deal found 5/5$225

Find 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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$209
(Kiwi.com)

One-way from

$106
(Mytrip)

Popular in

October

Cheapest in

September

Average price

$246
Provider with most accurate pricing for Seoul (SEL)-Manila Ninoy Aquino Intl flight deals.
Provider most trusted by Cheapflights users for Seoul (SEL)-Manila Ninoy Aquino Intl flights.
From Seoul (SEL) to Southeast Asia
One-way flight from Seoul (SEL) to Southeast Asia
Highest demand for flights based on searches. 8% potential increase in price ($23 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in May 2026

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 May 10, 2026.
Use the filters below to find and compare flights from Seoul to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonHanoi

ICN - HAN

ICNHAN

Incheon Intl

Wed 5/20

5:45 pm-9:40 am

1 stop17h 55m

Hanoi Noibai

Sat 5/23

2:10 am-4:45 pm

1 stop12h 35m

$259

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 5/29

2:00 pm-1:50 am

1 stop13h 50m

Bangkok Suvarnabhumi

Mon 6/8

2:50 am-3:45 pm

1 stop10h 55m

$259

IncheonHo Chi Minh City

ICN - SGN

ICNSGN

Incheon Intl

Wed 6/3

5:45 pm-1:50 am

1 stop10h 05m

Ho Chi Minh City

Sat 6/6

2:50 am-2:15 pm

1 stop9h 25m

$262

IncheonNha Trang

ICN - CXR

ICNCXR

Incheon Intl

Sun 6/7

6:45 am-9:35 am

Nonstop4h 50m

Nha Trang Cam Ranh

Thu 6/11

10:55 pm-5:35 am

Nonstop4h 40m

$268

IncheonHo Chi Minh City

ICN - SGN

ICNSGN

Incheon Intl

Tue 5/26

9:15 pm-12:30 am

Nonstop5h 15m

Ho Chi Minh City

Wed 6/3

12:20 pm-7:25 pm

Nonstop5h 05m

$269

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 6/10

11:45 am-1:25 am

1 stop15h 40m

Bangkok Suvarnabhumi

Thu 6/25

2:50 am-3:45 pm

1 stop10h 55m

$271

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 6/27

10:15 pm-1:25 am

1 stop29h 10m

Bangkok Suvarnabhumi

Tue 6/30

2:50 am-2:30 pm

1 stop9h 40m

$275

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 6/26

8:35 am-1:25 am

1 stop18h 50m

Bangkok Suvarnabhumi

Mon 6/29

2:50 am-2:30 pm

1 stop9h 40m

$275

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 8/31

2:00 pm-1:50 am

1 stop13h 50m

Bangkok Suvarnabhumi

Tue 9/1

2:50 am-8:45 pm

1 stop15h 55m

$288

IncheonHanoi

ICN - HAN

ICNHAN

Incheon Intl

Sun 8/2

3:30 pm-1:50 am

1 stop12h 20m

Hanoi Noibai

Sat 8/29

2:50 am-9:55 pm

1 stop17h 05m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Seoul to Southeast Asia?

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Southeast Asia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $190). Flying from Seoul to Southeast Asia in October is currently the most expensive (average of $338). 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 May 10, 2026.

It’s optimal to fly from Seoul to Southeast Asia in the morning. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Seoul to Southeast Asia?

Use this chart to determine the cheapest time to fly round-trip from Seoul to Southeast Asia. Price data was last updated on May 2, 2026.

Travelers seeking maximum savings on their Seoul to Southeast Asia flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 May 10, 2026.

The most flights from SEL to zzYJX are scheduled on a Friday (26 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (18 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 May 10, 2026.
Get a feel of what it's like to fly with Korean Air,Asiana Airlines, andJeju Air 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.

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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.
  • How long is the flight from Seoul to Southeast Asia?

    Airlines like Shenzhen Airlines, Shandong Airlines, and VietJet Air fly from Seoul to Southeast Asia in about 5h 15m. The time it takes to get you to your destination can typically vary by up to 10h 25m. The distance from Seoul to Southeast Asia is about 2211 mi. This flight may include one or multiple stops.

  • 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 Jin Air ($49), Eastar Jet ($53), and Jeju Air ($53).

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

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

    Consider Eastar Jet (96%), Kuwait Airways (95%) or AIR PREMIA (94%) 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 $115. While the most popular route (Seoul Gimpo Intl - Bangkok Suvarnabhumi) can be booked for $401 on average, our data indicates $762 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, May is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $190). Flying from Seoul to Southeast Asia in October is currently the most expensive (average of $338). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 May 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air SeoulCheapest$55Average$180FlexibilityNo cancel feeOn-timeN/A
Eastar JetCheapest$62Average$223FlexibilityNo cancel feeOn-time86%
Parata AirCheapest$73Average$210FlexibilityNo cancel feeOn-timeN/A
ScootCheapest$79Average$337FlexibilityNo cancel feeOn-timeN/A
Thai AirAsia XCheapest$93Average$196FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$97Average$298FlexibilityNo cancel feeOn-timeN/A
Thai Lion AirCheapest$98Average$312FlexibilityNo cancel feeOn-timeN/A
Thai Vietjet AirCheapest$116Average$255FlexibilityNo cancel feeOn-timeN/A
Philippines AirAsiaCheapest$128Average$198FlexibilityNo cancel feeOn-time53%
Vietnam AirlinesCheapest$134Average$256FlexibilityNo cancel feeOn-time81%

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