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Cheap flights from Southeast Asia to Seoul

BKK — SEL
23 Jul — 30 Jul1
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 23 June 2026.

Round-trip from

$324

One-way from

$148
Jeju Air
  • Jeju Air
  • 4/8-13/8
  • Nonstop
  • 8h 25m total
  • Southeast Asia to Seoul
Search Deals
Jeju Air
  • Jeju Air
  • 14/7
  • 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?

The price you pay for your flight from Southeast Asia to Seoul may vary depending on when you book. For the best chance of a lower fare, look to book 59 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 Southeast Asia to Seoul?

Currently, September is the cheapest month in which you can book a flight from Southeast Asia to Seoul (average of $378). Flying from Southeast Asia to Seoul in December is currently the most expensive (average of $607). 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 23 June 2026.

It’s optimal to fly from Southeast Asia to Seoul in the afternoon. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight at midday.

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 20 June 2026.

Travellers seeking maximum savings on their Southeast Asia to Seoul flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday 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 23 June 2026.
Read reviews from past customers who have flown with Korean Air,Cathay Pacific, andPhilippine Airlines from Southeast Asia to Seoul. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

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
1,221 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

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
1,388 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

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.
Philippine Airlines
7.3
Good
1,002 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

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
219 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

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
1,221 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Crew

8.7

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?

    Departing from Southeast Asia to Seoul will take you 4h 10m. The distance between Southeast Asia and Seoul is about 2606 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airline one-way is Cebu Pacific, with whom users have recently found tickets for as low as $28. However, be on the lookout for offers from Jeju Air and Philippines AirAsia, as they are both options that can get you from Southeast Asia to Seoul for a low price.

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

    While some choose either Manila Ninoy Aquino Intl - Incheon Intl or Manila Ninoy Aquino Intl - Seoul Gimpo Intl, Singapore Changi - Incheon Intl is the most popular route from Southeast Asia to Seoul.

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

    The top 3 most reliable airlines when flying from Southeast Asia to Seoul are Thai Vietjet Air (95%), EL AL (93%) and AIR PREMIA (92%).

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

    While on average a flight from Southeast Asia to Seoul is generally $240, our data shows the cheapest flight currently is $206. When looking at the most popular route, (Singapore Changi - Incheon Intl), you can expect to pay $647 for that flight.

  • 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, September is the cheapest month in which you can book a flight from Southeast Asia to Seoul (average of $378). Flying from Southeast Asia to Seoul in December is currently the most expensive (average of $607). 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

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Alternative routes for Southeast Asia to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Busan to Jeju City flights
Hong Kong to Incheon Intl flights
Kansai Intl to Incheon Intl flights
Manila to Incheon Intl flights
Narita to Incheon Intl flights
Singapore to Incheon Intl flights

Top 6 airlines flying from Southeast Asia to Seoul

Discover the top 6 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 647,157 searches. Data last updated 23 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippines AirAsiaCheapest$130Average$275FlexibilityNo cancel feeOn-time53%
Search Philippines AirAsia flights
Cebu PacificCheapest$175Average$301FlexibilityNo cancel feeOn-time64%
Search Cebu Pacific flights
Jin AirCheapest$234Average$453FlexibilityNo cancel feeOn-time78%
Search Jin Air flights
Cathay PacificCheapest$294Average$315FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Philippine AirlinesCheapest$295Average$418FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Korean AirCheapest$561Average$591FlexibilityNo 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?

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 Seoul from Southeast Asia.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southeast Asia to Seoul flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Southeast Asia to Seoul 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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