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Cheap flights from Incheon Intl Airport to Southeast Asia from $166

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — BKK
23 Apr — 30 Apr1
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 18 April 2025.

Round-trip from

$218

One-way from

$166

Popular in

January

Cheapest in

June

Average price

$378
Jeju Air
  • Jeju Air
  • 17/5-21/5
  • Nonstop
  • 11h 34m total
  • Incheon to Southeast Asia
Search Deals
Jeju Air
  • Jeju Air
  • 22/6
  • Nonstop
  • 5h 54m total
  • Incheon to Southeast Asia
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($146 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 18 April 2025.

Sat 17/520:05ICN - BKK
Nonstop5h 54mJeju Air
Wed 21/501:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 17/4$218
Sun 18/516:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Tue 20/522:45BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 17/4$226
Mon 7/710:05ICN - BKK
1 stop13h 00mVietnam Airlines
Sat 12/719:05BKK - ICN
1 stop19h 30mVietnam Airlines
Deal found 17/4$243
Sat 31/518:00ICN - BKK
Nonstop6h 35mT'way Air
Wed 4/600:05BKK - ICN
Nonstop5h 35mT'way Air
Deal found 17/4$253
Mon 8/919:55ICN - BKK
Nonstop5h 50mJin Air
Thu 11/900:55BKK - ICN
Nonstop5h 30mJin Air
Deal found 17/4$284
Mon 7/711:05ICN - BKK
1 stop8h 00mMultiple Airlines
Fri 11/700:55BKK - ICN
Nonstop5h 30mMultiple Airlines
Deal found 17/4$322
Thu 5/614:40ICN - BKK
1 stop22h 30mShenzhen Airlines
Wed 11/603:15BKK - ICN
1 stop10h 25mShenzhen Airlines
Deal found 17/4$392
Mon 14/707:20ICN - BKK
Nonstop5h 35mAsiana Airlines
Wed 23/711:55BKK - ICN
Nonstop5h 45mAsiana Airlines
Deal found 17/4$394
Mon 12/515:40ICN - DPS
Nonstop7h 05mJeju Air
Mon 19/522:45DPS - ICN
Nonstop7h 25mJeju Air
Deal found 17/4$400
Tue 17/610:35ICN - DPS
1 stop29h 25mVietnam Airlines
Fri 11/716:00DPS - ICN
1 stop23h 25mVietnam Airlines
Deal found 17/4$402
Sun 27/408:00ICN - BKK
1 stop16h 25mPhilippine Airlines
Thu 1/513:30BKK - ICN
1 stop27h 50mPhilippine Airlines
Deal found 17/4$427
Sat 19/410:10ICN - BKK
1 stop9h 50mCathay Pacific
Sun 27/408:05BKK - ICN
1 stop11h 05mCathay Pacific
Deal found 17/4$460

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 18 April 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 17/5

20:05-23:59

Nonstop5h 54m

Bangkok Suvarnabhumi

Wed 21/5

01:00-08:40

Nonstop5h 40m

$218

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 13/5

16:50-21:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Sun 18/5

22:45-06:25

Nonstop5h 40m

$226

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 13/5

18:00-22:35

Nonstop6h 35m

Bangkok Suvarnabhumi

Wed 21/5

00:05-07:40

Nonstop5h 35m

$239

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 17/5

10:05-21:05

1 stop13h 00m

Bangkok Suvarnabhumi

Thu 22/5

19:05-05:50

1 stop8h 45m

$243

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 8/9

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Thu 11/9

00:55-08:25

Nonstop5h 30m

$284

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 17/5

10:05-21:05

1 stop13h 00m

Bangkok Suvarnabhumi

Wed 21/5

00:05-07:40

Nonstop5h 35m

$295

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 18/6

07:20-10:55

Nonstop5h 35m

Bangkok Suvarnabhumi

Mon 23/6

11:55-19:40

Nonstop5h 45m

$377

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 5/6

14:40-11:10

1 stop22h 30m

Bangkok Suvarnabhumi

Wed 11/6

03:15-15:40

1 stop10h 25m

$392

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Mon 12/5

15:40-21:45

Nonstop7h 05m

Denpasar Bali Ngurah Rai

Mon 19/5

22:45-07:10

Nonstop7h 25m

$400

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Tue 17/6

10:35-15:00

1 stop29h 25m

Denpasar Bali Ngurah Rai

Sat 5/7

16:00-06:40

1 stop13h 40m

$402

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 47 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 18 April 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 18 April 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 (18 on average).

Rainfall in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

Temperature in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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 18 April 2025.
See what other customers who have flown with Korean Air, China Airlines and Asiana Airlines from Seoul to Southeast Asia have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

David,Dec 2024

ICN - JFK

A great airline with very attentive flight crew. Comfortable seats with more legroom than some other carriers. Good was relatively good and is included in many flights! Highly recommend.
Korean Air
8.4
Very Good
1,063 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

David,Dec 2024

ICN - JFK

A great airline with very attentive flight crew. Comfortable seats with more legroom than some other carriers. Good was relatively good and is included in many flights! Highly recommend.
China Airlines
8.2
Very Good
729 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

David,Dec 2024

ICN - JFK

A great airline with very attentive flight crew. Comfortable seats with more legroom than some other carriers. Good was relatively good and is included in many flights! Highly recommend.
Asiana Airlines
8.2
Very Good
438 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

David,Dec 2024

ICN - JFK

A great airline with very attentive flight crew. Comfortable seats with more legroom than some other carriers. Good was relatively good and is included in many flights! Highly recommend.
AIR PREMIA
8.2
Very Good
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

David,Dec 2024

ICN - JFK

A great airline with very attentive flight crew. Comfortable seats with more legroom than some other carriers. Good was relatively good and is included in many flights! Highly recommend.

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.

  • 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 $166 on Jeju Air. Other airlines that offer cheap prices include AIR PREMIA from $176 and T'way Air from $181 one-way.

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

    Consider Oman Air (86%), Turkish Airlines (86%) or EL AL (75%) 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 $344, our data indicates the cheapest price to be $156. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around $367.

  • 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 Hong Kong flights
Incheon Intl to Taiwan Taoyuan Intl flights
Incheon Intl to Suvarnabhumi flights
Incheon Intl to Denpasar flights
Incheon Intl to Narita 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 18 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsia XCheapest$269Average$437FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
China EasternCheapest$309Average$480FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest$442Average$450FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest$522Average$594FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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

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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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