Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Incheon Intl Airport to Southeast Asia from $135

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — BKK
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Incheon Intl to Southeast Asia

Enter your travel dates to find the best prices.

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 10 April 2026.

Thu 21/522:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Wed 27/502:25
BKK
-
ICN
1 stop18h 15m
Shandong Airlines
Deal found 6/4$272
Tue 19/516:45
ICN
-
BKK
1 stop11h 05m
Shandong Airlines
Wed 10/602:50
BKK
-
ICN
1 stop9h 40m
Shandong Airlines
Deal found 7/4$299
Sun 5/708:35
ICN
-
BKK
1 stop18h 50m
Shandong Airlines
Sat 11/702:50
BKK
-
ICN
1 stop9h 40m
Shandong Airlines
Deal found 5/4$313
Wed 29/716:45
ICN
-
BKK
1 stop11h 05m
Shandong Airlines
Wed 5/802:50
BKK
-
ICN
1 stop10h 55m
Shandong Airlines
Deal found 6/4$315
Tue 30/623:40
ICN
-
BKK
1 stop27h 45m
Shandong Airlines
Sat 4/702:50
BKK
-
ICN
1 stop10h 55m
Shandong Airlines
Deal found 7/4$316
Wed 24/623:40
ICN
-
BKK
1 stop27h 45m
Shandong Airlines
Wed 1/702:25
BKK
-
ICN
1 stop30h 20m
Shandong Airlines
Deal found 8/4$318
Sat 16/522:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Wed 27/502:25
BKK
-
ICN
1 stop19h 25m
Shandong Airlines
Deal found 7/4$327
Mon 12/1018:00
ICN
-
BKK
Nonstop6h 05m
T'way Air
Thu 15/1000:05
BKK
-
ICN
Nonstop5h 35m
T'way Air
Deal found 6/4$354
Mon 7/918:00
ICN
-
BKK
Nonstop6h 05m
T'way Air
Wed 9/900:05
BKK
-
ICN
Nonstop5h 35m
T'way Air
Deal found 6/4$356
Tue 13/1018:00
ICN
-
BKK
Nonstop6h 05m
T'way Air
Fri 16/1000:05
BKK
-
ICN
Nonstop5h 35m
T'way Air
Deal found 8/4$357
Sun 10/516:45
ICN
-
BKK
1 stop11h 05m
Shandong Airlines
Tue 12/502:25
BKK
-
ICN
1 stop16h 50m
Shandong Airlines
Deal found 8/4$363
Wed 3/608:15
ICN
-
DPS
1 stop12h 00m
Multiple Airlines
Sun 7/616:40
DPS
-
ICN
1 stop13h 20m
Multiple Airlines
Deal found 6/4$451

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 10 April 2026.

Round-trip from

$272

One-way from

$135

Popular in

January

Cheapest in

September

Average price

$390
Shandong Airlines
  • Shandong Airlines
  • 21/5-27/5
  • 2 total stops
  • 47h 25m total
  • Incheon to Southeast Asia
Search Deals
Shandong Airlines
  • Shandong Airlines
  • 1/7
  • 1 total stop
  • 18h 50m total
  • Incheon to Southeast Asia
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 10 April 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 return flight

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 7/9

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Thu 10/9

00:05-07:40

Nonstop5h 35m

$356

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 25/6

16:45-01:50

1 stop11h 05m

Bangkok Suvarnabhumi

Tue 30/6

02:50-15:45

1 stop10h 55m

$386
Fastest return journey

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 18/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Thu 21/5

22:45-06:15

Nonstop5h 30m

$388

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 29/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Thu 4/6

22:45-06:15

Nonstop5h 30m

$418

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 12/5

11:00-23:05

1 stop14h 05m

Bangkok Suvarnabhumi

Tue 19/5

06:00-07:10

1 stop23h 10m

$420

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 16/6

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Sun 21/6

22:45-06:15

Nonstop5h 30m

$421

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 29/6

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Wed 1/7

00:45-08:25

Nonstop5h 40m

$429

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 8/6

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Tue 16/6

22:45-06:15

Nonstop5h 30m

$448

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 9/6

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Sun 5/7

22:45-06:15

Nonstop5h 30m

$462

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 18/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Tue 9/6

22:45-06:15

Nonstop5h 30m

$465

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 44 resultsSorted by cheapest first
1
2
3
...
5

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 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.

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, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $111). Flying from Incheon Intl Airport to Southeast Asia in December is currently the most expensive (average of $181). 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 10 April 2026.

A simple way to save on the total cost of your ticket is to fly from Incheon Intl Airport to Southeast Asia in the morning. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the afternoon.

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 10 April 2026.

The most flights from ICN to zzYJX are scheduled on a Friday (35 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (30 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 10 April 2026.
Get a feel of what it's like to fly with VietJet Air from Incheon Intl Airport 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.
VietJet Air
5.6
Fair
164 reviews
Check prices

Boarding

6.0

Food

4.7

Overall

5.6

Comfort

5.3

Entertainment

4.0

Crew

6.6

Reviews

1 / 6
2.0
Mediocre

Anonymous,Dec 2025

DAD - SGN

Miserable and rude staff. Horrible leg space . It was a night mare . I will never try again
VietJet Air
5.6
Fair
164 reviews
VietJet Air
5.6
Fair
164 reviews
Check prices

Boarding

6.0

Food

4.7

Overall

5.6

Comfort

5.3

Entertainment

4.0

Crew

6.6

Reviews

1 / 6
2.0
Mediocre

Anonymous,Dec 2025

DAD - SGN

Miserable and rude staff. Horrible leg space . It was a night mare . I will never try again

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?

    There are many flights that can get you from Incheon Intl Airport to Southeast Asia in 5h 55m. Fly via Shandong Airlines, AIR PREMIA, or T'way Air to get the fastest option. The distance from Incheon Intl Airport to Southeast Asia is about 3663 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 $78 on Philippines AirAsia. Other airlines that offer cheap prices include Cebu Pacific from $92 and Thai AirAsia X from $92 one-way.

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

    Consider Kuwait Airways (96%), AIR PREMIA (92%) or Eastar Jet (91%) when booking your flight. These represent the most reliable airlines when flying from Incheon Intl Airport to Southeast Asia.

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

    Looking for the cheapest flight from Incheon Intl Airport to Southeast Asia? While on average our users pay $878, our data indicates the cheapest price to be $77. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around $974.

  • 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 holiday 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, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $111). Flying from Incheon Intl Airport to Southeast Asia in December is currently the most expensive (average of $181). 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.

Alternative routes for Incheon Intl to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Suvarnabhumi flights
Incheon Intl to Denpasar flights
Incheon Intl to Hong Kong flights
Incheon Intl to Narita flights
Incheon Intl to Taiwan Taoyuan Intl flights

Top airline flying from Incheon Intl to Southeast Asia

Discover the top airline 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 647,157 searches. Data last updated 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest$256Average$457FlexibilityNo cancel feeOn-timeN/A
Search VietJet Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Incheon Intl to Southeast Asia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Incheon Intl to Southeast Asia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Incheon Intl to Southeast Asia?

Cheapflights helps you find that perfect flight to Southeast Asia from Incheon Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Southeast Asia from Incheon Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Incheon Intl to Southeast Asia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.