Cheap flights from Incheon Intl Airport to Southeast Asia

ICN — BKK
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Incheon Intl to Southeast Asia

Popular in

April

Cheapest in

February

Average price

C$ 369
Highest demand for flights based on searches. 3% potential increase in price (C$ 20 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 10 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?

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 75 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.

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 C$ 334). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of C$ 454). 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 optimal to fly from Incheon Intl Airport to Southeast Asia in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Southeast Asia

Read through reviews of airlines operating flights from Incheon Intl Airport to Southeast Asia, such as Korean Air,Philippine Airlines, andCebu Pacific. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

Crew

8.7

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?

    The cheapest airline one-way is Philippines AirAsia, with whom users have recently found tickets for as low as C$ 82. However, be on the lookout for offers from Jeju Air and VietJet Air, as they are both options that can get you from Incheon Intl Airport to Southeast Asia for a low price.

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

    Consider Eastar Jet (100%), AIR PREMIA (97%) or Trinity Airways (Formerly T'way Air) (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?

    The cheapest flight price from Incheon Intl Airport to Southeast Asia is C$ 171. On average you can expect to pay C$ 260. The most popular route, (Incheon Intl - Bangkok Suvarnabhumi), can usually be booked for C$ 321.

  • 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 C$ 334). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of C$ 454). 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 4 airlines flying from Incheon Intl to Southeast Asia

AirlineCheapestAverageFlexibilityOn-time
Thai AirAsia XCheapestC$ 107AverageC$ 326FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Cebu PacificCheapestC$ 216AverageC$ 307FlexibilityNo cancel feeOn-time64%
Search Cebu Pacific flights
Philippine AirlinesCheapestC$ 261AverageC$ 412FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Korean AirCheapestC$ 396AverageC$ 401FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

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When you search for this flight from Incheon Intl to Southeast Asia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Asia from Incheon Intl.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Incheon Intl to Southeast Asia, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Incheon Intl to Southeast Asia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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