S$ 169 Find Cheap Flights from Seoul Incheon Airport to Southeast Asia – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon Intl to Southeast Asia departing on 11-7. 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

Save 17% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Incheon Intl to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Incheon Intl 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 Incheon Intl to Southeast Asia

Tue, 18 Aug - Fri, 21 Aug
T'way Air Logo
15:50 - 21:30
ICN
-
SIN
6h 40mdirect
T'way Air Logo
23:00 - 06:45
SIN
-
ICN
6h 45mdirect
S$ 396T'way Air
Tue, 21 Jul - Sun, 26 Jul
Multiple Airlines Logo
07:45 - 11:40
ICN
-
SIN
28h 55m
1 stop
Multiple Airlines Logo
00:50 - 08:40
SIN
-
ICN
6h 50mdirect
S$ 397Multiple Airlines
Wed, 15 Jul - Sat, 18 Jul
Multiple Airlines Logo
18:10 - 23:40
ICN
-
SIN
6h 30mdirect
Multiple Airlines Logo
23:00 - 06:45
SIN
-
ICN
6h 45mdirect
S$ 398Multiple Airlines
Sat, 18 Jul - Thu, 23 Jul
Multiple Airlines Logo
23:45 - 20:30
ICN
-
SIN
21h 45m
1 stop
Multiple Airlines Logo
23:00 - 06:45
SIN
-
ICN
6h 45mdirect
S$ 400Multiple Airlines
Fri, 14 Aug - Sat, 15 Aug
T'way Air Logo
15:50 - 21:30
ICN
-
SIN
6h 40mdirect
T'way Air Logo
23:00 - 06:45
SIN
-
ICN
6h 45mdirect
S$ 401T'way Air
Thu, 27 Aug - Mon, 31 Aug
Vietnam Airlines Logo
10:35 - 12:10
ICN
-
SIN
26h 35m
1 stop
Vietnam Airlines Logo
13:10 - 06:40
SIN
-
ICN
16h 30m
1 stop
S$ 402Vietnam Airlines
Sat, 15 Aug - Tue, 18 Aug
T'way Air Logo
15:50 - 21:30
ICN
-
SIN
6h 40mdirect
T'way Air Logo
23:00 - 06:45
SIN
-
ICN
6h 45mdirect
S$ 403T'way Air
Tue, 21 Jul - Thu, 23 Jul
Multiple Airlines Logo
11:45 - 00:10
ICN
-
SIN
13h 25m
1 stop
Multiple Airlines Logo
23:00 - 06:45
SIN
-
ICN
6h 45mdirect
S$ 405Multiple Airlines
Wed, 5 Aug - Sun, 9 Aug
T'way Air Logo
15:50 - 21:30
ICN
-
SIN
6h 40mdirect
T'way Air Logo
23:00 - 06:45
SIN
-
ICN
6h 45mdirect
S$ 406T'way Air
Wed, 2 Sep - Sun, 13 Sep
Multiple Airlines Logo
11:30 - 17:00
ICN
-
SIN
6h 30mdirect
Multiple Airlines Logo
19:15 - 06:00
SIN
-
ICN
9h 45m
1 stop
S$ 407Multiple Airlines
Booking Insights

KAYAK's insights & trends for Incheon Intl to Southeast Asia flights

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

What is the cheapest Incheon Intl Airport 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 Incheon Intl Airport found in the last 72 hours was to Singapore, at S$ 45 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 5 days was S$ 45.

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

The average price for all round-trip flights from Incheon Intl Airport to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Southeast Asia is generally in the evening, when retur flights cost S$ 410 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is S$ 536.

Can I save money by flying with a stopover from Incheon Intl Airport 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$ 667, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Incheon Intl Airport to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Incheon Intl Airport 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 Incheon Intl Airport to Southeast Asia is September, when tickets cost S$ 269 (return) on average. On the other hand, the most expensive months are February and October, when the average cost of return tickets is S$ 419 and S$ 409 respectively.

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

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

If your flying dates are flexible, you should consider flying to Southeast Asia on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Seoul Incheon Airport to Southeast Asia. For your return ticket, we recommend flying on a Monday and avoiding Fridays for the best deals.

How far in advance should I book a flight from Incheon Intl Airport 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 Incheon Intl Airport 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 Incheon Intl Airport to Southeast Asia, you should book around 2 weeks before departure, which saves you about 18% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJune
Cheapest flightS$ 169
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (12% more expensive on average)
Flight from Seoul Incheon Airport to Singapore

Flights from Incheon Intl to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Incheon Intl 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 Incheon Airport 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 Incheon Airport to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seoul Incheon Airport 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 Incheon Airport 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 Incheon Airport 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 Incheon Airport 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 Incheon Airport to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Southeast Asia

  • Looking for a cheap flight? 25% of our users found tickets from Seoul Incheon Airport to the following destinations at these prices or less: Hanoi S$ 291 one-way - S$ 490 round-trip; Singapore S$ 191 one-way - S$ 176 round-trip

Reviews of the top 5 airlines flying from Incheon Intl to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Incheon 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 Incheon Intl 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 1220 reviews
8.1Food
8.3Comfort
8.7Crew
8.2Entertainment
8.5Boarding
Airline reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

8.0 ExcellentGary, Apr 2026
ICN - YYZ
Read more Korean Air reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

Lousy entertainment system. Crews are excellent. Meal is just mediocre.

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.

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

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

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

I was traveling with my 3 minor children, one leg I was seated two aisles behind them. On the longest leg I would have preferred sitting across the aisle from them, not behind. My youngest is 4yos. I understand airplane seating configurations are not the airlines problem but seating the one adult with a reservation apart from the minors was very difficult.

plus: service and personal assistance minus: online check-in did not work

All in all the flight was good. Love the fact that for airline food it was piping hot

Always on time. Clean and good service as always..great food too..thank you SQ, the best airline in the world👍👍👍

Please have the artiste showcase of classic international movies. Please have better food. There was no dessert or yogurt in my Ind Veg meal.

Very good customer services before, & during flight. I will choose it again in the future.

Well, I didn’t like much. The staff didn’t have any beverages except for coffee and water and they never came by. The food just sucked. There was no entertainment at all.

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.

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.

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.

Boarding was not accordingly after front seat, bmf then back seat. This delayed for at least 40mins or more. The staff at Jakarta can do better. Is chaos at the entry to board the plane. This tarnished Scoot reputation when everyone was talking about it.

The crew was not customer oriented at all, even confrontational . The aircraft needs more attention to detail as far as comfort, and the 1 hour sitting at the gate with no air is inexcusable

We flew on the 787 Dreamliner direct to main gate at KLIA2, quick entry via eGate and on the train 41mins after touchdown. Go well SCOOT

We were delayed, but there was never any update given. Everyone was standing at the gate as boarding was supposed to commence at 13:10 for a 13:55 flight. We didn't actually start getting on the shuttles to the plane, until after 14:00. No updates, no information given at all.

Scoot refused to change my flight even though I had booked a flexible ticket. MyTrip wanted to charge me an extra $271 for a ticket that was only listed as $217. I complained about this to scoot and they didn't give a shite. So never again will you be getting money from me Scoot. You can Scoot off.

Me and my Partner were in seats 6A and 6B. (Which we paid a premium for). Unfortunately the person is seat 6C was large and because of his size my Partner was squashed to the point of discomfort and unable to sit properly. We requested to be moved to some empty seats and two hours into the flight the crew moved us. Perhaps it’s time airlines began checking passenger sizes to ensure they don’t encroach into fellow passengers seating space!

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports