Southeast Asia

Cheap flights from Seoul (SEL) to Southeast Asia

SEL — BKK
Dec 12 — Dec 191
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Find flight deals from Seoul to Southeast Asia

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

April

Cheapest in

February

Average price

$267
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 ($9 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 Seoul to Southeast Asia

How far ahead should I book a flight from Seoul to Southeast Asia?

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Southeast Asia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seoul to Southeast Asia?

Currently, September is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $234). Flying from Seoul to Southeast Asia in February is currently the most expensive (average of $324). 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 SEL to YJX?

It’s optimal to fly from Seoul to Southeast Asia in the afternoon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Seoul to Southeast Asia?

Travelers seeking maximum savings on their Seoul 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

Get a feel of what it's like to fly with Asiana Airlines,Jeju Air, andPhilippine Airlines from Seoul 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.

Boarding

8.3

Entertainment

7.6

Comfort

8.0

Crew

8.5

Food

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Boarding

8.3

Entertainment

7.6

Comfort

8.0

Crew

8.5

Food

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Boarding

8.3

Entertainment

7.6

Comfort

8.0

Crew

8.5

Food

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Boarding

8.3

Entertainment

7.6

Comfort

8.0

Crew

8.5

Food

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Boarding

8.3

Entertainment

7.6

Comfort

8.0

Crew

8.5

Food

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Boarding

8.3

Entertainment

7.6

Comfort

8.0

Crew

8.5

Food

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Related info for your journey

  • What are the cheapest airlines to fly from Seoul to Southeast Asia one-way?

    The cheapest airlines for a one-way flight from Seoul to Southeast Asia are Sun PhuQuoc Airways ($48), Jin Air ($49), and Eastar Jet ($53).

  • What are the most popular routes from Seoul to Southeast Asia?

  • What are the most reliable airlines from Seoul 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 Seoul to Southeast Asia.

  • What are the cheapest flights from Seoul to Southeast Asia?

    Looking at all options, your cheapest flight can be booked for $182. While the most popular route (Incheon Intl - Bangkok Suvarnabhumi) can be booked for $310 on average, our data indicates $855 when flying from Seoul to Southeast Asia.

  • Can I find deals for flights from Seoul to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Seoul to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Southeast Asia.

  • Can I find deals for business class flights from Seoul to Southeast Asia?

    Yes. Cheapflights offers flight deals from Seoul 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 Seoul to Southeast Asia?

    Currently, September is the cheapest month in which you can book a flight from Seoul to Southeast Asia (average of $234). Flying from Seoul to Southeast Asia in February is currently the most expensive (average of $324). 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 Seoul to Southeast Asia

AirlineCheapestAverageFlexibilityOn-time
Air BusanCheapest$63Average$345FlexibilityNo cancel feeOn-time94%
Parata AirCheapest$73Average$237FlexibilityNo cancel feeOn-timeN/A
Eastar JetCheapest$74Average$276FlexibilityNo cancel feeOn-time86%
Air SeoulCheapest$79Average$289FlexibilityNo cancel feeOn-timeN/A
Trinity Airways (Formerly T'way Air)Cheapest$87Average$279FlexibilityNo cancel feeOn-time88%
Thai Lion AirCheapest$98Average$312FlexibilityNo cancel feeOn-timeN/A
AIR PREMIACheapest$106Average$346FlexibilityNo cancel feeOn-timeN/A
Thai AirAsia XCheapest$111Average$225FlexibilityNo cancel feeOn-timeN/A
Jin AirCheapest$112Average$358FlexibilityNo cancel feeOn-time78%
ScootCheapest$121Average$380FlexibilityNo cancel feeOn-timeN/A

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