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Cheap flights from Incheon Intl Airport to Southeast Asia

ICN — BKK
26 Oct — 2 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Incheon Intl to Southeast Asia

Popular in

July

Cheapest in

March

Average price

$336
Highest demand for flights based on searches. 9% potential increase in price ($59 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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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 $335). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $461). 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?

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 14% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Southeast Asia

Get a feel of what it's like to fly with VietJet 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.
VietJet Air
5.6
Fair
174 reviews
Check prices

Comfort

5.3

Food

4.7

Entertainment

4.0

Overall

5.6

Boarding

6.0

Crew

6.6

Reviews

1 / 7
10.0
Excellent

xuan-anh,Apr 2026

SGN - SYD

Check in was too long (58 mn). Online check in wasn’t available on this flight (VJ85).
VietJet Air
5.6
Fair
174 reviews
VietJet Air
5.6
Fair
174 reviews
Check prices

Comfort

5.3

Food

4.7

Entertainment

4.0

Overall

5.6

Boarding

6.0

Crew

6.6

Reviews

1 / 7
10.0
Excellent

xuan-anh,Apr 2026

SGN - SYD

Check in was too long (58 mn). Online check in wasn’t available on this flight (VJ85).

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 $92 on Cebu Pacific. Other airlines that offer cheap prices include VietJet Air from $92 and Vietnam Airlines from $152 one-way.

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

    Consider Kuwait Airways (97%), Ethiopian Air (97%) or EL AL (96%) 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 $478, our data indicates the cheapest price to be $175. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around $628.

  • 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 $335). Flying from Incheon Intl Airport to Southeast Asia in February is currently the most expensive (average of $461). 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.

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Alternative routes for Incheon Intl to Southeast Asia

Incheon Intl to Taiwan Taoyuan Intl flights
Incheon Intl to Suvarnabhumi flights
Incheon Intl to Denpasar flights
Incheon Intl to Hong Kong flights
Incheon Intl to Narita flights

Top airline flying from Incheon Intl to Southeast Asia

AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest$287Average$307FlexibilityNo cancel feeOn-timeN/A
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Fly with Cheapflights

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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