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Cheap flights from Southeast Asia to Seoul

BKK — SEL
7 Jun — 14 Jun1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Southeast Asia to Seoul

Keep the following information in mind while searching for Southeast Asia to Seoul flight deals. Data was last updated 8 May 2026.

Round-trip from

£177

One-way from

£104
Jeju Air
  • Jeju Air
  • 3/7-13/7
  • Nonstop
  • 8h 25m total
  • Southeast Asia to Seoul
Search Deals
Jeju Air
  • Jeju Air
  • 16/6
  • Nonstop
  • 4h 10m total
  • Southeast Asia to Seoul
Search Deals

Cheapflights Insights

Everything you need to know about your flight from Southeast Asia to Seoul

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

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Southeast Asia to Seoul. 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 Southeast Asia to Seoul?

Currently, May is the cheapest month in which you can book a flight from Southeast Asia to Seoul (average of £154). Flying from Southeast Asia to Seoul in December is currently the most expensive (average of £316). 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 YJX to SEL?

Find hourly flight availability from Southeast Asia to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 May 2026.

It’s optimal to fly from Southeast Asia to Seoul in the afternoon. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly return from Southeast Asia to Seoul. Price data was last updated on 2 May 2026.

Travellers seeking maximum savings on their Southeast Asia to Seoul flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated 8 May 2026.
Get a feel of what it's like to fly with Korean Air,Asiana Airlines, andCathay Pacific from Southeast Asia to Seoul 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.
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,217 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.1
Very Good
530 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
1,319 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cebu Pacific
6.8
Okay
216 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Philippines AirAsia
6.8
Okay
126 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Southeast Asia to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Southeast Asia to Seoul?

    There are many flights that can get you from Southeast Asia to Seoul in 4h 10m. Fly via Jeju Air, T'way Air, or China Eastern to get the fastest option. The distance from Southeast Asia to Seoul is about 1619 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with VietJet Air, which is currently one of the cheapest options available, starting at £35. Jeju Air flights start at £44 while deals on Cebu Pacific start at £47 one-way.

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

    The most popular flight routes from Southeast Asia to Seoul are Manila Ninoy Aquino Intl - Incheon Intl, Bangkok Suvarnabhumi - Seoul Gimpo Intl and Singapore Changi - Incheon Intl.

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

    Before booking your flight to Seoul from Southeast Asia, check out the most reliable airlines to get you to your destination on time: Hawaiian Airlines (98%), Air Busan (96%), Eastar Jet( 96%).

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

    Looking for the cheapest flight from Southeast Asia to Seoul? While on average our users pay £959, our data indicates the cheapest price to be £197. The most popular route (Manila Ninoy Aquino Intl - Incheon Intl), is priced around £252.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Southeast Asia to Seoul (average of £154). Flying from Southeast Asia to Seoul in December is currently the most expensive (average of £316). 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

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Top 10 airlines flying from Southeast Asia to Seoul

Discover the top 10 airlines that operate flights from Southeast Asia to Seoul. 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 858,174 searches. Data last updated 8 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippines AirAsiaCheapest£61Average£134FlexibilityNo cancel feeOn-time53%
Search Philippines AirAsia flights
Cebu PacificCheapest£94Average£134FlexibilityNo cancel feeOn-time64%
Search Cebu Pacific flights
AirAsiaCheapest£97Average£162FlexibilityNo cancel feeOn-time66%
Search AirAsia flights
Asiana AirlinesCheapest£100Average£254FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
T'way AirCheapest£110Average£334FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
ScootCheapest£114Average£248FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
Cathay PacificCheapest£136Average£148FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Jeju AirCheapest£142Average£237FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Philippine AirlinesCheapest£167Average£212FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Korean AirCheapest£226Average£321FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Southeast Asia to Seoul via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Southeast Asia to Seoul?

Millions of users choose and trust Cheapflights to book the best flight deals from Southeast Asia to Seoul for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Seoul from Southeast Asia? 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 Southeast Asia to Seoul become cheaper?

Yes! Start tracking prices for Southeast Asia to Seoul 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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