S$ 144 Find Cheap Flights from Seoul to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to Southeast Asia departing on 4-2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to Southeast Asia, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seoul to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Seoul to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seoul to Southeast Asia

Sat, 28 Feb - Wed, 4 Mar
Jeju Air Logo
18:20 - 00:10
ICN
-
SIN
6h 50mdirect
Jeju Air Logo
01:10 - 08:40
SIN
-
ICN
6h 30mdirect
S$ 342Jeju Air
Wed, 25 Mar - Thu, 26 Mar
Multiple Airlines Logo
14:05 - 16:15
ICN
-
SIN
27h 10m
1 stop
Multiple Airlines Logo
22:35 - 16:00
SIN
-
ICN
16h 25m
1 stop
S$ 343Multiple Airlines
Mon, 2 Mar - Thu, 5 Mar
Multiple Airlines Logo
18:05 - 12:25
ICN
-
SIN
19h 20m
1 stop
Multiple Airlines Logo
22:35 - 16:00
SIN
-
ICN
16h 25m
1 stop
S$ 344Multiple Airlines
Fri, 6 Mar - Tue, 10 Mar
Multiple Airlines Logo
10:35 - 19:25
ICN
-
SIN
9h 50m
1 stop
Multiple Airlines Logo
20:15 - 06:20
SIN
-
ICN
9h 05m
1 stop
S$ 346Multiple Airlines
Wed, 4 Mar - Sun, 8 Mar
Malaysia Airlines Logo
00:10 - 12:55
ICN
-
SIN
13h 45m
1 stop
Malaysia Airlines Logo
11:05 - 06:30
SIN
-
ICN
18h 25m
1 stop
S$ 347Malaysia Airlines
Thu, 5 Mar - Mon, 9 Mar
Malaysia Airlines Logo
00:10 - 14:20
ICN
-
SIN
15h 10m
1 stop
Malaysia Airlines Logo
16:35 - 06:30
SIN
-
ICN
12h 55m
1 stop
S$ 348Malaysia Airlines
Tue, 3 Mar - Sun, 8 Mar
Jeju Air Logo
18:20 - 00:10
ICN
-
SIN
6h 50mdirect
Jeju Air Logo
01:10 - 08:40
SIN
-
ICN
6h 30mdirect
S$ 349Jeju Air
Tue, 3 Mar - Sat, 7 Mar
Air China Logo
14:25 - 06:50
GMP
-
SIN
17h 25m
1 stop
Air China Logo
23:55 - 13:05
SIN
-
GMP
12h 10m
1 stop
S$ 404Air China
Tue, 3 Mar - Sat, 7 Mar
Air China Logo
14:25 - 06:50
GMP
-
SIN
17h 25m
1 stop
Air China Logo
23:55 - 13:05
SIN
-
GMP
12h 10m
1 stop
S$ 405Air China
Fri, 6 Feb - Mon, 9 Feb
T'way Air Logo
17:25 - 01:30
GMP
-
SIN
9h 05m
1 stop
T'way Air Logo
02:30 - 13:05
SIN
-
GMP
9h 35m
1 stop
S$ 414T'way Air
Booking Insights

KAYAK's insights & trends for Seoul to Southeast Asia flights

Get data-powered insights and trends into flights from Seoul to Southeast Asia to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest Seoul to Southeast Asia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Southeast Asia from Seoul found in the last 72 hours was to Bangkok, at S$ 97 return. The most popular route is from Incheon Intl Airport (ICN) to Singapore (SIN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was S$ 147.

Can I save money by flying with a stopover from Seoul to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 540, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seoul to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seoul to Southeast Asia is September, when tickets cost S$ 325 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of return tickets is S$ 615 and S$ 584 respectively.

What’s the cheapest day of the week to fly from Seoul to Southeast Asia?

The average price of all round-trip flights from Seoul to Southeast Asia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seoul to Southeast Asia, look for departures on Saturdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Southeast Asia, Monday is the cheapest day to fly and Friday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seoul to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Seoul to Southeast Asia, you should book around 2 weeks before departure, which saves you about 13% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonApril
Cheapest flightS$ 143
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (36% more expensive on average)
Flight from Seoul Gimpo Intl to Singapore

Flights from Seoul to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Seoul to Southeast Asia 
Kent ThienFlew with Korean Air
ICN
-
SGN
Feb 2025
You have to prepare for the waiting time for immigration to Vietnam, it takes 3 hrs to go thru and it is easy to get mad of it
TomFlew with Asiana Airlines
ICN
-
CGK
Jul 2024
We spent our long layover in the transit hotel in terminal 1 of Incheon Airport. The room was small, but was also very clean and well kept. I'd highly recommend this hotel if you have a long layover. The price wasn't bad at all.

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Seoul to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seoul to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seoul to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seoul to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Seoul to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seoul to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seoul to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally in the morning, when retur flights cost S$ 211 on average. Morning departures are around 18% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is S$ 416.

Reviews of the top 5 airlines flying from Seoul to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Seoul to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seoul to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1188 reviews
8.7Crew
8.3Comfort
8.2Entertainment
8.5Boarding
8.1Food
Airline reviews

Great service and comfort level. You can have more of vegetarian food options.

10.0 ExcellentAnonymous, Nov 2025
ICN - SFO
Read more Korean Air reviews

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

Overall were very good and I was satisfied w/ all the food and services.

Excellent service. I pre-ordered gluten intolerant meal and they handle it with care. They served me my meal before other people's to avoid crossed contamination. Thank you 🙏

The flight arrived on time. 2×2 seating meant no one needed to sit in the middle. This was a connectibf flight from Singapore and required going to 3 counters in different levels to check a golf bag

Pleasant business class flight experience with good onboarding experience. Flight service team was excellent with usual book-the-chef menu available

Food was just okay, need to improve for other menu variations

Wish the seat don’t have restrictions, can’t fully insert backpack all the way inside.

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

Best service airline. The cabin crew is attentive and friendly. Inflight entertainment system is good

Service was top notch and the attention to passengers is great. Takeoff and landing was on schedule. Food selection is good

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Tightest knee space ever experienced on any budget airline. Crew polite and efficient, take off and arrival on time. Surprised that they did not offer water on flight except as sales product. Questions about Food and entertainment not applicable since neither are offered.

At the boarding gate, Jeju airline accepted "carry on" bags for checking in for free due to the "limited cabin space". This is because most passengers were carrying multiple bags that exceed the size and weight limit for carry on items. Rather than inspecting carry-on bags at the counter and requiring excess bags to be checked in for a fee, they allowed freeloading at the boarding gate to to the detriment of those who paid the fee for checked bags. This is totally unfair.

As posred earlier the crew was very accommodating & professional. Thank You Allen

All though you can not help it the kids was loud and unruly, The crew was very accommodating and professional. Thank You Allen.

No priority counter check in for families with young children.

The flight was delayed from GUM to ICN, there was no notification on how delayed the flight would be. Although we received notice, there was no specified time given. The flight was also very uncomfortable.

Amazing experience, tonnes of leg room, great crew and smooth flight. Especially for this price for business class.

Great Value with Tway Airlines I highly recommend flying with Tway Airlines—especially if you're looking for a budget-friendly option. While the lowest fare comes with limited luggage allowance, it suited me perfectly since I was traveling light. Check-in and boarding were impressively fast and hassle-free. The ground staff and cabin crew were exceptionally polite and courteous throughout the journey. Although the aircraft was an older model and lacked inflight entertainment, this was a minor trade-off considering the ticket cost was nearly 70% lower than typical fares on the ICN–FRA route. If you're focused on value and efficiency over luxury, Tway delivers a smooth and pleasant experience.

I liked cleanliness, comfort, kind staff. I thought communication about meals could be better. We did not know how we were supposed to ensure we had food and drinks in our booking

ok flight, but charged for everything. water, food, baggage. no free water available, I had to plead to give me water to take medicine.

Need to consider about zero entertainment services and lack of flight information!

I can't board the 2nd flight due to the last 1st flight. In the 1st flight check-in, I can't board due to the stupid problem of K-ETA visa. The booking system and the flight company should inform the customer a few days earlier. This is the worse experience in my life. I won't use KAYAK and the airline anymore. My friends were also surprised about this stupid situation. I won't use KAYAK and T'way anymore.

I can't board the flight due to the K-ETA problem. You should inform the customer clearly a few days before the flight. I can't cancel/change the flight now. This is the worst experience in my life. I also never hear about this kind of bad experience. I won't use the booking system and the flight company anymore.

Apart from the staff at the airport who were amazing the rest of the experience with scoot was disgusting a very basic flight packed and uncomfortable no consideration to a disabled traveller. And even worse from Singapore to Vienna. All about the money. Not even a complementary coffee or juice. From the airline. The staff at the airport didn't look at me as been disabled and no help not even a wheelchair was offered. The food on the plane was cheap and tasteless and expensive no entertainment on plane and WiFi which had to be paid for was intermittent at best.

Uncoordinated boarding, seat comfort is terrible, even toilet is so small that overweight people wouldn't fit in. Baggage scam with additional fees. Stay away from this airline.

Forthright communication to the customers regarding services offered and any fees involved.

Scoot is a no frills budget airline. Do not expect a legacy airline experience.

I have taken more than 50 flights in the past year and this is the worst onboard experience that I've come across. There's always a risk with budget airlines and their creative views of customer service. Having bought a standard seat, we boarded at the assigned seat - we naturally couldn't choose ourselves as that would be extra cost. After take-off, the person in the row in front leans back their seat. As a frequent flyer, I believe this is their right, so I try to lean my seat back as well to have the same space available. However, my standard seat could not lean back, as the row behind was an exit row. As I had paid for a standard seat, not a less space than standard, I moved to the completely free row behind me. This was not allowed, as due to extra legroom, this would cost extra. Subsequently spent the next 30 mins discussing this scenario with the crew. I have no issues with budget airlines and additional charges, but if I pay for a standard seat, I want a standard seat, not one with less space. As you do not offer me a discount for the less space, do not try and charge me a premium, when I find a free seat with more space. It works both ways Scoot.

Finishes were quite worn, including our very scratched up seatback. No entertainment available, and the WiFi (even for “ScootHub”) was very slow. Crew were somewhat friendly.

Food & lower the prices. Look at Air Asia food look better & affordable

Not a frequent user of their website booking. Booked my check-in baggage and only realized that I did not book my check in baggage for return flight. The receipt was not clear in identifying that as well. Was charged exorbitantly at check in counter. Bad taste for sure when it is a business trip and not leisure trip. Baggage was delayed for more than an hour at belt back in SG.

Boarding took forever. It's also weird that we paid more (for preferred seats) to get on the plane last. Inflight WiFi never worked the entire trip. I want my money back.

The cosmetic condition was pretty run down. The carpets were badly worn out. Even the paint on the wings was chipped and peeled! Looks like they are running these 787s to the ground..

Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to Seoul

Cabin classes available on flights to Seoul. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.