Southeast Asia

Cheap flights from Incheon Intl (ICN) to Southeast Asia

ICN — BKK
Dec 5 — Dec 121
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Find flight deals from Incheon Intl to Southeast Asia

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

April

Cheapest in

February

Average price

$264
Provider with most accurate pricing for Seoul (SEL)-Manila Ninoy Aquino Intl flight deals.
Provider most trusted by Cheapflights users for Seoul (SEL)-Manila Ninoy Aquino Intl flights.
Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Insights

Everything you need to know about your flight from Incheon Intl Airport to Southeast Asia

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 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $239). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $325). 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?

It’s typically best to fly out from Incheon Intl Airport to Southeast Asia in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

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

Travelers seeking maximum savings on their Incheon Intl Airport to Southeast Asia flight should consider departing on Monday afternoons when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Southeast Asia

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.

Comfort

8.3

Overall

8.4

Crew

8.7

Food

8.1

Entertainment

8.2

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!!

Comfort

8.3

Overall

8.4

Crew

8.7

Food

8.1

Entertainment

8.2

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!!

Comfort

8.3

Overall

8.4

Crew

8.7

Food

8.1

Entertainment

8.2

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!!

Comfort

8.3

Overall

8.4

Crew

8.7

Food

8.1

Entertainment

8.2

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!!

Comfort

8.3

Overall

8.4

Crew

8.7

Food

8.1

Entertainment

8.2

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!!

Comfort

8.3

Overall

8.4

Crew

8.7

Food

8.1

Entertainment

8.2

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

  • 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 $48 on Sun PhuQuoc Airways. Other airlines that offer cheap prices include Jin Air from $49 and Eastar Jet from $53 one-way.

  • What are the most popular routes 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 Eastar Jet (100%), AIR PREMIA (97%) and Trinity Airways (Formerly T'way Air) (95%).

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

    Looking at all options, your cheapest flight can be booked for $105. While the most popular route (Incheon Intl - Bangkok Suvarnabhumi) can be booked for $321 on average, our data indicates $789 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 $239). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $325). 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

Top 10 airlines flying from Incheon Intl to Southeast Asia

AirlineCheapestAverageFlexibilityOn-time
Air BusanCheapest$63Average$316FlexibilityNo cancel feeOn-time94%
Parata AirCheapest$73Average$237FlexibilityNo cancel feeOn-timeN/A
Eastar JetCheapest$74Average$271FlexibilityNo cancel feeOn-time86%
Trinity Airways (Formerly T'way Air)Cheapest$78Average$268FlexibilityNo cancel feeOn-time88%
Air SeoulCheapest$79Average$289FlexibilityNo cancel feeOn-timeN/A
Thai Lion AirCheapest$98Average$312FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$100Average$342FlexibilityNo cancel feeOn-timeN/A
Thai AirAsia XCheapest$100Average$233FlexibilityNo cancel feeOn-timeN/A
Jin AirCheapest$112Average$338FlexibilityNo cancel feeOn-time78%
Thai AirAsiaCheapest$124Average$374FlexibilityNo cancel feeOn-time87%

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