$121 Find Cheap Flights from Incheon 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 Incheon Intl to Southeast Asia departing on 15/9. 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

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 Incheon 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 Incheon to Southeast Asia, as well as popular online travel agencies
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Best Southeast Asia Flight Deals from Incheon Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
Denpasar
Denpasar1 stop$378
Denpasar
Denpasar1 stop$378

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

Di, 8 Jul - Mi, 16 Jul
Jeju Air Logo
20:05 - 23:59ICN-BKK
5h 54mdirect
Jeju Air Logo
01:00 - 08:40BKK-ICN
5h 40mdirect
$223Jeju Air
Find Deal
So, 13 Jul - Mi, 16 Jul
Vietnam Airlines Logo
18:05 - 10:50ICN-BKK
18h 45m1 stop
Vietnam Airlines Logo
22:15 - 16:35BKK-ICN
16h 20m1 stop
$239Vietnam Airlines
Find Deal
Di, 24 Jun - Di, 24 Jun
Asiana Airlines Logo
19:30 - 23:10ICN-BKK
5h 40mdirect
Asiana Airlines Logo
01:20 - 08:45BKK-ICN
5h 25mdirect
$439Asiana Airlines
Find Deal
Fr, 27 Jun - Fr, 11 Jul
Korean Air Logo
21:15 - 01:05ICN-BKK
5h 50mdirect
Korean Air Logo
21:40 - 05:05BKK-ICN
5h 25mdirect
$454Korean Air
Find Deal
Mi, 16 Jul - Do, 17 Jul
Asiana Airlines Logo
19:30 - 23:10ICN-BKK
5h 40mdirect
Asiana Airlines Logo
01:20 - 08:45BKK-ICN
5h 25mdirect
$461Asiana Airlines
Find Deal
Do, 4 Sep - Di, 9 Sep
Singapore Airlines Logo
11:20 - 00:05ICN-DPS
13h 45m1 stop
Singapore Airlines Logo
10:05 - 22:20DPS-ICN
11h 15m1 stop
$473Singapore Airlines
Find Deal
Mo, 23 Jun - Mi, 6 Aug
Korean Air Logo
21:15 - 01:05ICN-BKK
5h 50mdirect
Korean Air Logo
21:40 - 05:05BKK-ICN
5h 25mdirect
$474Korean Air
Find Deal
Sa, 6 Sep - Do, 11 Sep
Singapore Airlines Logo
11:20 - 00:05ICN-DPS
13h 45m1 stop
Singapore Airlines Logo
10:05 - 22:20DPS-ICN
11h 15m1 stop
$474Singapore Airlines
Find Deal
Di, 4 Nov - Mi, 12 Nov
VietJet Air Logo
07:00 - 11:55ICN-DPS
29h 55m1 stop
VietJet Air Logo
15:35 - 19:25DPS-ICN
26h 50m1 stop
$528VietJet Air
Find Deal
Do, 23 Okt - Sa, 1 Nov
VietJet Air Logo
21:20 - 11:50ICN-DPS
15h 30m1 stop
VietJet Air Logo
15:35 - 19:25DPS-ICN
26h 50m1 stop
$540VietJet Air
Find Deal
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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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Incheon Intl Airport to Southeast Asia.

The cheapest ticket to Southeast Asia from Incheon Intl Airport found in the last 72 hours was to Phuket City, at $147 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 $930.

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 $954, 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 November, when tickets cost $530 (return) on average. On the other hand, the most expensive months are October and January, when the average cost of return tickets is $913 and $818 respectively.

What’s the cheapest day of the week to fly from Incheon 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.

For Incheon to Southeast Asia, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Southeast Asia back to Incheon, the best deals are generally found on Sunday, with Monday being the most expensive.

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 the flight from Incheon Intl Airport to Southeast Asia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonJune
High seasonJanuary
Cheapest flight$121
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (35% more expensive on average)
Flight from Incheon to Bangkok

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 AirICN-SGNFeb 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 AirlinesICN-CGKJuly 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 Incheon 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 Incheon to Southeast Asia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Incheon 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 Incheon 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 Incheon 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 Incheon 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 Incheon 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 afternoon, when retur flights cost $474 on average. Morning departures are around 11% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the evening, which is peak travel time and where the average cost of a ticket is $595.

Top tips for finding cheap flights to Southeast Asia

  • Looking for a cheap flight? 25% of our users found tickets from Incheon to the following destinations at these prices or less: Kuala Lumpur $488 one-way - $214 round-trip; Singapore $467 one-way - $1,180 round-trip

Top 4 airlines serving 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 1088 reviews
8.2Entertainment
8.5Boarding
8.3Comfort
8.1Food
8.7Crew
Airline reviews

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

10.0 ExcellentANTHONY JAMES, May 2025ICN - SGN
Read more Korean Air reviews

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.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Best service I’ve ever had Flight attendants are nicely dressed and look very professional

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

I loved everything, I was just a little confused on my bag allowance. When I checked in it said I was allowed 2 check in bags, but when I got there they said I was only allowed 1 so I had to pay an additional 200 dollars! Other then that everything was great! I would love to use your Airlines again when I fly out to Manila again in late May, however I want to be able to have 2 bags included this time lol 😆

the water for tea could have been hot, entertainment was awful, lots of old movies and TV shows

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

It was all perfect and very pleasant for such long flights

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

We took business class, It was comfortable and I was able to sleep.

Everything was perfect. A flight attendant even brought me snacks after I declined food due to my desire to force myself to follow the destination time zone.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

The usual excellent experience with Singapore Airlines. The airplane was on time and actually early to Haneda Airport. The onboarding experience was pleasant with no delays, perhaps owing to the fact that the flight was not full. Nevertheless, the air crew were their usual outstanding standards in serving the passengers.

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

Excelent service and plenty of food and drinks during the flight. Flight crew very attentive to our needs. Leg room between rows are very disappointing.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

Loved the airline with the exception of their carry on limitations. They enforce a strict 7 kilo limit for carry on baggage which is ridiculous. We traveled from SFO to SIN with carry on with no difficulty yet when we checked in Delhi they forced us to check the carry on bags. The weight of our carry on bags were 11 and 12 kilos and while they exceeded the limitations set by Singapore Airlines they were well under weight limitations set by may other carriers. Interestingly my wife and I were each allowed two 22 KG bags to check in addition to the 7 kg carry on for a total weight of 102 KG's. Our total weight with the one bag we planned to check and our two carry ons was 46 kgs.

Food could have been better. Too many passengers getting up and down all the time.

It was very good experience on board to Sydney with SQ.

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.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

Everything was good except food , food choices was very less. Washrooms were closed.overall good experience.

VietJet is a discount airline like EasyJet, Flair or Spirit. I flew 3 flights in 2 weeks and all were Airbus 321's. 2 of the flights left and arrived on time and 1 left and arrived about 45minutes late. Seat pitch in economy is 29" but exit row seats have super-generous leg room. There are no power ports or entertainment of any kind. Food is best purchased on-line before the flight but there is a limited selection available in flight - cash only. The aircraft are clean and the airline is run as well as any other airline that specializes in economy passengers.

Our flight was 3 hours delayed and the airport was hectic as our boarding pass said one gate while the digital screens said another gate. Attendants were clueless and said to watch both! Vietjwt cared more about selling their merch than even providing any water for the 2 hour flight

Cheap flight but more expensive when the airlines demands you pay over 30$ for 1 kilogram overweight ( it is 8,2kg I have for carry on baggage) The flights announcement 2PM, and it departed 4 PM, no announcement for delaying, People says Vietjet is delayJet airlines in their blood.

Vietjet tried to steal extra money from passengers by forcing them to change the name on the ticket that was correctly filled in on an English form online when ticket bought online. I bought the ticket via a foreign website where the language is English, At filling in the passenger's name, it says middle name first, then first name, and last name, That the ticket done and printed. when my wife checked in the staff at the check in counter said that her name was written wrong, she must fill the name in Vietnamese style, writing the Last name first, then middle name, first name comes last, even though her name was not misspelled. At the aiport I asked the Vietjet customer service, if it is written in Vietnamese way, it will be wrong when she travel abroad ? The custom service could not answer. It took over an hour where my wife was thrown like a ball between the check-in counter, to the Vietjet customer service , then to passport control. The cost is 110,000 vnd for change place in vietnamese way, I thought if there are millions of passengers who have done the same mistake, how much money Vietjet raked in every year On the flight, it is not allowed to sit in the empty seats in front or next to me, I sat in the middle in a row where two big men were sitting, I really need to change seats but the crew asked to pay extra to buy the empty seats. It is petty and cruel of Vietjet. There is no other choice than the state-owned airline, then you have no choice but to swallow the bite

Our flight was delayed for about 3hours however the ground crew made it sure that we will not miss our connecting flight from Hanoi to incheon.

If there could be simple free food or snack or some entertainment.

Seat pitch is narrow moreover the agent assigned seat in front of emergency exit window which is not reclined. A terrible 4hr 40min flight from HAN to DPS

Horrible! As an Asian, they look down on their own skin color. Disgusting people and airlines. If you are white, they will worship you

1-Airlines did not send any info to inform the clients about changing fight number. 2-Delayed too long on runay without any explanation

체크인을 담당하는 승무원이 아주, 몹시 불친절하고 전문성이 현저하게 떨어졌습니다. The flight attendant in charge of the check-in was very, very unfriendly and markedly less professional.

Everything you need to know for your flight to Southeast Asia

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