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Cheap flights from Incheon Intl Airport to Southeast Asia from $174

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — BKK
19 Jun — 26 Jun1
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 20 May 2026.

Tue 26/514:00
ICN
-
BKK
1 stop13h 50m
Shandong Airlines
Fri 5/602:25
BKK
-
ICN
1 stop19h 25m
Shandong Airlines
Deal found 18/5$360
Sat 23/522:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Tue 26/502:25
BKK
-
ICN
1 stop18h 15m
Shandong Airlines
Deal found 15/5$361
Sat 20/621:45
ICN
-
BKK
1 stop30h 05m
Shandong Airlines
Tue 7/702:25
BKK
-
ICN
1 stop30h 20m
Shandong Airlines
Deal found 17/5$376
Tue 23/621:45
ICN
-
BKK
1 stop30h 05m
Shandong Airlines
Fri 26/602:25
BKK
-
ICN
1 stop19h 25m
Shandong Airlines
Deal found 15/5$378
Mon 25/522:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Fri 5/602:25
BKK
-
ICN
1 stop19h 25m
Shandong Airlines
Deal found 17/5$388
Mon 1/615:30
ICN
-
BKK
1 stop12h 20m
Shandong Airlines
Sun 14/602:25
BKK
-
ICN
1 stop16h 50m
Shandong Airlines
Deal found 18/5$416
Mon 1/616:45
ICN
-
BKK
1 stop11h 05m
Shandong Airlines
Sun 7/602:50
BKK
-
ICN
1 stop9h 40m
Shandong Airlines
Deal found 15/5$417
Thu 25/608:35
ICN
-
BKK
1 stop18h 50m
Shandong Airlines
Mon 6/702:50
BKK
-
ICN
1 stop9h 40m
Shandong Airlines
Deal found 17/5$433
Tue 9/623:40
ICN
-
BKK
1 stop27h 45m
Shandong Airlines
Sun 21/602:50
BKK
-
ICN
1 stop9h 40m
Shandong Airlines
Deal found 18/5$434
Fri 26/616:45
ICN
-
BKK
1 stop11h 05m
Shandong Airlines
Fri 10/702:25
BKK
-
ICN
1 stop19h 25m
Shandong Airlines
Deal found 18/5$435
Mon 15/607:45
ICN
-
BKK
1 stop9h 10m
China Eastern
Sun 21/602:10
BKK
-
ICN
1 stop14h 20m
China Eastern
Deal found 18/5$437
Sun 4/1000:10
ICN
-
DPS
1 stop19h 20m
Malaysia Airlines
Sat 7/1119:15
DPS
-
ICN
1 stop24h 40m
Malaysia Airlines
Deal found 16/5$529

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 20 May 2026.

Round-trip from

$360

One-way from

$174

Popular in

April

Cheapest in

September

Average price

$367
Shandong Airlines
  • Shandong Airlines
  • 29/5-3/6
  • 2 total stops
  • 20h 45m total
  • Incheon to Southeast Asia
Search Deals
Shandong Airlines
  • Shandong Airlines
  • 11/6
  • 1 total stop
  • 11h 05m total
  • Incheon to Southeast Asia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 20 May 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

Fri 12/6

16:20-00:40

1 stop10h 20m

Bangkok Suvarnabhumi

Wed 17/6

02:10-15:10

1 stop11h 00m

$455

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 5/6

15:55-04:05

2 stops14h 10m

Bangkok Suvarnabhumi

Wed 10/6

02:10-15:20

1 stop11h 10m

$466

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 9/6

13:10-00:40

2 stops13h 30m

Bangkok Suvarnabhumi

Thu 11/6

02:10-14:55

2 stops10h 45m

$485

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 18/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Wed 21/10

00:05-07:40

Nonstop5h 35m

$501

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 13/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Tue 20/10

00:05-07:40

Nonstop5h 35m

$504

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 4/7

11:55-01:55

2 stops16h 00m

Bangkok Suvarnabhumi

Sun 9/8

21:55-14:55

2 stops15h 00m

$521
Fastest return journey

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 1/7

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Fri 3/7

00:45-08:25

Nonstop5h 40m

$524

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 28/7

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Wed 29/7

00:45-08:25

Nonstop5h 40m

$546

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 3/7

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Mon 6/7

00:45-08:25

Nonstop5h 40m

$558

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 18/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Fri 23/10

00:05-07:40

Nonstop5h 35m

$566

Flights are sorted by cheapest return flights first.

Deals found on 15/5

Showing 1-10 of 40 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $285). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $452). 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 20 May 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 evening. If you’re flexible enough to do this you can expect to save up to 16% 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 20 May 2026.

The most flights from ICN to zzYJX are scheduled on a Monday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).

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

To ensure you get the cheapest price possible for a flight from Incheon Intl Airport to Southeast Asia, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 6h 05m. Fly via China Eastern, T'way Air, or Malaysia Airlines 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 $91 and Thai AirAsia X from $91 one-way.

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

    Consider Air Busan (100%), AIR PREMIA (96%) or Kuwait Airways (95%) 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 $644, our data indicates the cheapest price to be $231. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around $965.

  • 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, September is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $285). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $452). 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 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 Taiwan Taoyuan Intl flights
Incheon Intl to Denpasar flights
Incheon Intl to Hong Kong flights
Incheon Intl to Narita flights

Fly with Cheapflights

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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.

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