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Cheap flights from Incheon Intl Airport to Southeast Asia from $118

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — BKK
10 Sep — 17 Sep1
1 adult

Cheap 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 5 September 2025.

Round-trip from

$172

One-way from

$118

Popular in

January

Cheapest in

June

Average price

$271
Jeju Air
  • Jeju Air
  • 27/9-1/10
  • Nonstop
  • 11h 30m total
  • Incheon to Southeast Asia
Search Deals
Jeju Air
  • Jeju Air
  • 24/10
  • Nonstop
  • 5h 50m total
  • Incheon to Southeast Asia
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($199 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find 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 5 September 2025.

Sat 27/920:05ICN - BKK
Nonstop5h 50mJeju Air
Tue 30/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 4/9$172
Thu 4/920:05ICN - BKK
Nonstop5h 54mJeju Air
Sat 6/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 4/9$189
Sun 7/919:55ICN - BKK
Nonstop5h 50mJin Air
Wed 10/900:55BKK - ICN
Nonstop5h 30mJin Air
Deal found 5/9$199
Sun 19/1018:00ICN - BKK
Nonstop6h 05mT'way Air
Sat 25/1000:05BKK - ICN
Nonstop5h 35mT'way Air
Deal found 4/9$202
Sun 14/920:05ICN - BKK
Nonstop5h 54mJeju Air
Thu 18/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 3/9$204
Sun 21/916:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Mon 29/922:45BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 5/9$205
Wed 10/920:05ICN - BKK
Nonstop5h 54mJeju Air
Sat 20/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 5/9$207
Wed 17/920:05ICN - BKK
Nonstop5h 50mJeju Air
Thu 16/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 4/9$209
Fri 26/919:55ICN - BKK
Nonstop5h 50mJin Air
Mon 29/900:55BKK - ICN
Nonstop5h 30mJin Air
Deal found 5/9$212
Sun 21/916:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Thu 2/1022:45BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 5/9$215
Sun 19/1018:05ICN - BKK
1 stop18h 45mVietnam Airlines
Sun 26/1022:10BKK - ICN
1 stop16h 20mVietnam Airlines
Deal found 4/9$221
Mon 13/1017:55ICN - DPS
1 stop22h 05mVietnam Airlines
Fri 7/1116:05DPS - ICN
1 stop22h 55mVietnam Airlines
Deal found 3/9$397

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 5 September 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Southeast Asia that are best for you.

Fly from

Incheon Intl

Fly to

Southeast Asia

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 27/9

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Fri 3/10

00:55-08:25

Nonstop5h 30m

$199

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 27/9

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Mon 29/9

00:55-08:25

Nonstop5h 30m

$199

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 21/9

20:05-23:59

Nonstop5h 54m

Bangkok Suvarnabhumi

Wed 15/10

01:00-08:40

Nonstop5h 40m

$204

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 21/9

20:05-23:55

Nonstop5h 50m

Bangkok Suvarnabhumi

Thu 25/9

01:00-08:40

Nonstop5h 40m

$205

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 26/9

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Sun 28/9

00:55-08:25

Nonstop5h 30m

$212

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 26/9

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Sat 27/9

00:55-08:25

Nonstop5h 30m

$212

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 26/9

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Thu 2/10

00:55-08:25

Nonstop5h 30m

$212

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 26/9

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Tue 30/9

00:55-08:25

Nonstop5h 30m

$212

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 22/9

16:50-21:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Mon 29/9

22:45-06:25

Nonstop5h 40m

$215

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 10/10

20:05-23:55

Nonstop5h 50m

Bangkok Suvarnabhumi

Sat 18/10

01:00-08:40

Nonstop5h 40m

$224

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 37 results
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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, February is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $489). Flying from Incheon Intl Airport to Southeast Asia in December is currently the most expensive (average of $911). 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 5 September 2025.

When flying from Incheon Intl Airport 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 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 5 September 2025.

The most flights from ICN to zzYJX are scheduled on a Wednesday (33 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (23 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 5 September 2025.
Get a feel of what it's like to fly with Asiana Airlines, Cebu Pacific, andVietJet 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.
Asiana Airlines
8.2
Very Good
479 reviews
Check prices

Boarding

8.4

Food

8.1

Overall

8.2

Entertainment

7.8

Comfort

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dana,Aug 2025

MNL - ICN

Air Asana helped me so much because I had previously canceled flights and they booked me. They helped me through the whole process of getting a new flight. The staff was courteous and helpful kind, and they assisted me with everything that I needed. They provided plenty of water and the food was good as well. Thank you so much to the Asana airline staff.!!
Asiana Airlines
8.2
Very Good
479 reviews
Asiana Airlines
8.2
Very Good
479 reviews
Check prices

Boarding

8.4

Food

8.1

Overall

8.2

Entertainment

7.8

Comfort

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dana,Aug 2025

MNL - ICN

Air Asana helped me so much because I had previously canceled flights and they booked me. They helped me through the whole process of getting a new flight. The staff was courteous and helpful kind, and they assisted me with everything that I needed. They provided plenty of water and the food was good as well. Thank you so much to the Asana airline staff.!!
Cebu Pacific
6.8
Okay
202 reviews
Asiana Airlines
8.2
Very Good
479 reviews
Check prices

Boarding

8.4

Food

8.1

Overall

8.2

Entertainment

7.8

Comfort

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dana,Aug 2025

MNL - ICN

Air Asana helped me so much because I had previously canceled flights and they booked me. They helped me through the whole process of getting a new flight. The staff was courteous and helpful kind, and they assisted me with everything that I needed. They provided plenty of water and the food was good as well. Thank you so much to the Asana airline staff.!!
VietJet Air
5.6
Fair
147 reviews
Asiana Airlines
8.2
Very Good
479 reviews
Check prices

Boarding

8.4

Food

8.1

Overall

8.2

Entertainment

7.8

Comfort

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dana,Aug 2025

MNL - ICN

Air Asana helped me so much because I had previously canceled flights and they booked me. They helped me through the whole process of getting a new flight. The staff was courteous and helpful kind, and they assisted me with everything that I needed. They provided plenty of water and the food was good as well. Thank you so much to the Asana airline staff.!!

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 50m. Fly via Jin Air, Jeju Air, or Vietnam 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 most reliable airlines from Incheon Intl Airport to Southeast Asia?

    Consider EL AL (98%), Turkish Airlines (98%) or AIR PREMIA (98%) 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 $586, our data indicates the cheapest price to be $102. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around $947.

  • 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, February is the cheapest month in which you can book a flight from Incheon Intl Airport to Southeast Asia (average of $489). Flying from Incheon Intl Airport to Southeast Asia in December is currently the most expensive (average of $911). 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 Hong Kong flights
Incheon Intl to Narita flights
Incheon Intl to Taiwan Taoyuan Intl flights
Incheon Intl to Denpasar flights

Top 4 airlines flying from Incheon Intl to Southeast Asia

Discover the top 4 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 647,157 searches. Data last updated 5 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Cebu PacificCheapest$232Average$266FlexibilityNo cancel feeOn-time64%
Search Cebu Pacific flights
Thai AirAsia XCheapest$267Average$342FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Asiana AirlinesCheapest$439Average$439FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Thai AirwaysCheapest$553Average$613FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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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