HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Asia

$107+ Cheap flights from Incheon Intl (ICN) 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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — BKK
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Incheon Intl to Southeast Asia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Incheon Intl to Southeast Asia

Cheapest flights from Incheon Intl to Southeast Asia
Explore the most affordable flight options available from Incheon Intl to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.

This Eastar Jet deal was found by Cheapflights users on 6/17. 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 Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:15 pm
ICN
-
DAD
Nonstop4h 55m
Eastar Jet
Tue 9/112:25 am
DAD
-
ICN
Nonstop4h 30m
Eastar Jet
Deal found 6/17$211
This CheapOair deal was found by Cheapflights users on 6/16. 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.
Sun 7/58:55 pm
ICN
-
DAD
Nonstop4h 45m
Multiple Airlines
Thu 7/911:45 pm
DAD
-
ICN
Nonstop4h 15m
Multiple Airlines
Deal found 6/16$212
This CheapOair deal was found by Cheapflights users on 6/17. 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.
Mon 9/78:35 pm
ICN
-
DAD
Nonstop4h 50m
Eastar Jet
Thu 9/1012:25 am
DAD
-
ICN
Nonstop4h 30m
Eastar Jet
Deal found 6/17$213
This CheapOair deal was found by Cheapflights users on 6/14. 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.
Sun 8/238:55 pm
ICN
-
DAD
Nonstop4h 45m
Air Seoul
Wed 8/2612:40 am
DAD
-
ICN
Nonstop4h 35m
Air Seoul
Deal found 6/14$217
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/34:05 am
ICN
-
PQC
Nonstop5h 25m
VietJet Air
Mon 7/67:35 pm
PQC
-
ICN
Nonstop5h 25m
VietJet Air
Deal found 6/18$218
This CheapOair deal was found by Cheapflights users on 6/15. 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 9/29:30 pm
ICN
-
DAD
Nonstop5h 00m
Multiple Airlines
Thu 9/1012:40 am
DAD
-
ICN
Nonstop4h 35m
Multiple Airlines
Deal found 6/15$219
This FlightHub deal was found by Cheapflights users on 6/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:35 pm
ICN
-
DAD
Nonstop4h 50m
Eastar Jet
Wed 8/2612:25 am
DAD
-
ICN
Nonstop4h 30m
Eastar Jet
Deal found 6/18$221
This CheapOair deal was found by Cheapflights users on 6/15. 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.
Sun 7/197:30 pm
ICN
-
PQC
Nonstop5h 50m
Multiple Airlines
Wed 7/2210:25 pm
PQC
-
ICN
Nonstop5h 40m
Multiple Airlines
Deal found 6/15$221
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/14:05 am
ICN
-
PQC
Nonstop5h 25m
VietJet Air
Mon 7/67:35 pm
PQC
-
ICN
Nonstop5h 25m
VietJet Air
Deal found 6/16$222
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 6/304:05 am
ICN
-
PQC
Nonstop5h 25m
VietJet Air
Tue 7/77:35 pm
PQC
-
ICN
Nonstop5h 25m
VietJet Air
Deal found 6/16$223
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/47:50 pm
ICN
-
CXR
Nonstop5h 05m
Air Seoul
Wed 7/2212:05 am
CXR
-
ICN
Nonstop5h 05m
Air Seoul
Deal found 6/16$224
This CheapOair deal was found by Cheapflights users on 6/17. 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.
Thu 6/255:20 pm
ICN
-
PQC
Nonstop6h 05m
Multiple Airlines
Tue 6/3010:00 pm
PQC
-
ICN
Nonstop5h 35m
Multiple Airlines
Deal found 6/17$225

Find flight deals from Incheon Intl to Southeast Asia

Keep the following information in mind while searching for Incheon Intl to Southeast Asia flight deals. Data was last updated June 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$211
(Eastar Jet)

One-way from

$107
(Kiwi.com)

Popular in

October

Cheapest in

September

Average price

$283
Provider with most accurate pricing for Seoul (SEL)-Manila Ninoy Aquino Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Manila Ninoy Aquino Intl flights.
Search Deals
From Incheon Intl to Southeast Asia
Search Deals
One-way flight from Incheon Intl to Southeast Asia
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl 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 18, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonNha Trang

ICN - CXR

ICNCXR

Incheon Intl

Mon 9/7

9:25 pm-12:35 am

Nonstop5h 10m

Nha Trang Cam Ranh

Thu 9/10

1:35 am-8:45 am

Nonstop5h 10m

$269

IncheonHanoi

ICN - HAN

ICNHAN

Incheon Intl

Sun 9/27

8:40 pm-11:45 pm

Nonstop5h 05m

Hanoi Noibai

Tue 9/29

12:45 am-7:35 am

Nonstop4h 50m

$280

IncheonNha Trang

ICN - CXR

ICNCXR

Incheon Intl

Mon 8/31

9:25 pm-12:35 am

Nonstop5h 10m

Nha Trang Cam Ranh

Fri 9/4

1:35 am-8:45 am

Nonstop5h 10m

$283

IncheonHanoi

ICN - HAN

ICNHAN

Incheon Intl

Sat 10/10

3:30 pm-1:50 am

1 stop12h 20m

Hanoi Noibai

Mon 10/12

2:50 am-3:45 pm

1 stop10h 55m

$287

IncheonDa Nang

ICN - DAD

ICNDAD

Incheon Intl

Fri 8/7

12:30 am-3:15 am

Nonstop4h 45m

Da Nang

Thu 8/13

11:30 pm-6:00 am

Nonstop4h 30m

$290

IncheonDa Nang

ICN - DAD

ICNDAD

Incheon Intl

Wed 8/5

12:30 am-3:15 am

Nonstop4h 45m

Da Nang

Sun 8/9

11:30 pm-6:00 am

Nonstop4h 30m

$290

IncheonNha Trang

ICN - CXR

ICNCXR

Incheon Intl

Mon 7/20

7:00 pm-10:30 pm

Nonstop5h 30m

Nha Trang Cam Ranh

Thu 7/23

11:30 pm-6:45 am

Nonstop5h 15m

$294

IncheonNha Trang

ICN - CXR

ICNCXR

Incheon Intl

Tue 8/18

9:25 pm-12:35 am

Nonstop5h 10m

Nha Trang Cam Ranh

Thu 8/20

1:35 am-8:45 am

Nonstop5h 10m

$297

IncheonPhu Quoc

ICN - PQC

ICNPQC

Incheon Intl

Wed 7/22

5:20 pm-9:25 pm

Nonstop6h 05m

Phu Quoc Duong Dang

Mon 7/27

10:25 pm-6:05 am

Nonstop5h 40m

$300
Quickest round-trip

IncheonManila

ICN - MNL

ICNMNL

Incheon Intl

Sun 8/30

7:35 am-10:55 am

Nonstop4h 20m

Manila Ninoy Aquino Intl

Mon 8/31

11:55 pm-4:50 am

Nonstop3h 55m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Incheon Intl to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Incheon Intl 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 Incheon Intl Airport to Southeast Asia

What is the cheapest month to book a flight from Incheon Intl Airport to Southeast Asia?

Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $203). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $323). 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 ICN to YJX?

Find hourly flight availability from Incheon Intl 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 18, 2026.

It’s typically best to fly out from Incheon Intl Airport to Southeast Asia in the afternoon. Doing so could potentially save you 21% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Incheon Intl Airport to Southeast Asia

Explore weekly flight availability from Incheon Intl 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 18, 2026.

The most flights from ICN to zzYJX are scheduled on a Thursday (36 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (30 on average).

How far ahead should I book a flight from Incheon Intl Airport to Southeast Asia?

The price you pay for your flight from Incheon Intl Airport to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest day to fly from Incheon Intl Airport to Southeast Asia?

Use this chart to determine the cheapest time to fly round-trip from Incheon Intl to Southeast Asia. Price data was last updated on June 13, 2026.

Travelers seeking maximum savings on their Incheon Intl Airport 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.

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 18, 2026.
Read reviews from past customers who have flown Korean Air,Asiana Airlines, andJeju Air from Incheon Intl Airport to Southeast Asia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

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!!
Korean Air
8.4
Very good
1,218 reviews
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

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!!
Asiana Airlines
8.1
Very good
544 reviews
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

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!!
Jeju Air
7.6
Good
38 reviews
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

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!!
Cebu Pacific
6.8
Okay
218 reviews
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

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!!
VietJet Air
5.6
Fair
168 reviews
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Entertainment

8.2

Food

8.1

Boarding

8.5

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 Incheon Intl 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 Incheon Intl Airport to Southeast Asia?

    For as low as $230, Air Seoul can have you in Southeast Asia from Incheon Intl Airport in 5h. Incheon Intl Airport and Southeast Asia are separated by a distance of 2055 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from Incheon Intl Airport to Southeast Asia one-way?

    One-way options have recently been found by users for as low as $49 on Jin Air. Other airlines that offer cheap prices include Eastar Jet from $53 and Jeju Air from $53 one-way.

  • What are the most popular routes from Incheon Intl Airport to Southeast Asia?

    Most travelers choose Incheon Intl - Bangkok Suvarnabhumi, Incheon Intl - Hanoi Noibai or Incheon Intl - Denpasar Bali Ngurah Rai when deciding on the best route from Incheon Intl Airport to Southeast Asia.

  • What are the most reliable airlines from Incheon Intl Airport to Southeast Asia?

    The top 3 most reliable airlines when flying from Incheon Intl Airport to Southeast Asia are Kuwait Airways (100%), AIR PREMIA (100%) and EL AL (98%).

  • What are the cheapest flights from Incheon Intl Airport to Southeast Asia?

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Incheon Intl - Bangkok Suvarnabhumi) can be booked for $307 on average, our data indicates $777 when flying from Incheon Intl Airport to Southeast Asia.

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

    Yes. In addition to deals on Incheon Intl to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.

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

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

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

    Yes. Cheapflights offers flight deals from Incheon Intl 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 Incheon Intl Airport to Southeast Asia?

    Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $203). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $323). 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 Incheon Intl to Southeast Asia

Discover the top 10 airlines that operate flights from Incheon Intl 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 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest$62Average$257FlexibilityNo cancel feeOn-time86%
Parata AirCheapest$73Average$211FlexibilityNo cancel feeOn-timeN/A
Air SeoulCheapest$79Average$246FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$96Average$307FlexibilityNo cancel feeOn-timeN/A
Thai Lion AirCheapest$98Average$312FlexibilityNo cancel feeOn-timeN/A
Thai AirAsia XCheapest$100Average$212FlexibilityNo cancel feeOn-timeN/A
Air BusanCheapest$109Average$257FlexibilityNo cancel feeOn-time94%
Thai Vietjet AirCheapest$116Average$257FlexibilityNo cancel feeOn-timeN/A
Thai AirAsiaCheapest$124Average$287FlexibilityNo cancel feeOn-time87%
ScootCheapest$128Average$337FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights