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Find cheap flights from Incheon to Southeast Asia from $138

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 20/5. 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
Wed 5/6
Wed 12/6

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Best Southeast Asia Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

Denpasar
Denpasar1 stop$489

Good to know

Low season

April

High season

January

Cheapest flight

$138
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (16% more expensive on average)
Flight from Seoul Incheon Airport to Bangkok

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 to Southeast Asia from Seoul Incheon Airport 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 to Southeast Asia with an airline and back to Seoul Incheon Airport 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 to Southeast Asia from Seoul Incheon Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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: Bangkok $138 one-way - $310 round-trip; Singapore $306 one-way - $846 round-trip

Top 5 airlines serving from Incheon Intl to Southeast Asia

 
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.
8.5
Korean AirOverall score based on 1184 reviews
8.2Food
8.3Comfort
8.8Crew
8.6Boarding
8.2Entertainment
Airline reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

10.0 ExcellentAnonymous, Apr 2024ICN - SGN
Read more about Korean Air reviews

The flight crews were extremely professional helpful and courteous. Departure and arrival times were accurate. No delay. Thanks

Not very comfortable seated in the back plane due to turbulence

Everything about Korean air is great, hands down! Will always prefer this airline from other carriers.

Ford not that great the seat not to big for leg room like other airline

Crew was ok, but some passengers were a bit rude. Again, all outlets were not working, only the really slow charging usb plug on the entertainment system. Entertainment system was also bugged, some features just crash, the touch screen wasn't working and when trying to watch a movie the onscreen display kept flashing off and on making it very difficult to watch.

New plane. Perfect gluten free meal Very flawless procedures from check-in to the landing. Taking off on time and landing even earlier and the luggages are already there after shortest arrival report.

It was ok. Not good and not a bad experience

I like your stewardess, they are nice. However, your food could have been better and wheres your dessert? You do not offer beer or scotch. I do not drink alcohol biut my husband can have one or two, he has to ask if he can have one. during dinner or lunch, it should be offerred. Also, you do not have the most famous drinks ginger ale

Not accommodating ground staff On board slow service Crew members not very friendly

lunch was good; breakfast was kinda meh cabin temprature was way too high new entertainment system but somewhat limited content

The plane had a technical problem it would delayed 10 hours but they just gave limited information and put all passengers into the Miracle lounge. Ther were not enough chairs and so on.

Ensure there is a choice of food for all customers and also enough food

An excellent airline; polite and courteous cabin crew, excellent meal and drink service. Highly recommended.

We boarded the plane at 1:20 pm It was hot. There was no air-conditioning It was stifling They kept us on the plane sitting there for 1 hour and 10 minutes

No space in between the seats as per them the average height of human is 5’3” and weight as 55, so seats are designed as per the same. Also, the aircraft was dirty and full of insects

when we arrived at Taipei no one help us to get boarding pass. we saw a few people there asked them for help but they just ignored us. There was a guy told us to call Starlux number to get help but we don’t know how to dial the number until there was a lady working there helped us to call Starlux customer then someone came down took us to another counter for boarding pass. Very confused and inconvenient. We might not choose Starlux again in the future.

There was no entertainment and food option limited But the service was first class on an economy flight

They didn't have a vegetarian food in spite of the ore order

Technical problems checking in. Had to wait a long time while they got things ready.

Vietnam airlines is just one step upper to the cheapest one (vietjet, if you wanted delays and cancel or feel like a criminal then vietjet is for you) for sure better customer cares and on time.

The seats are too cramped, there is barely enough room to shift weight. This could be easy to endure in a one-hour flight, but not more than that. The crew did not clean up shortly after meals. The tray table remained open because of the meal and ate up what is left of the little seating space. The crew were just idling by for 45 minutes before they collected the trash. The airline did not inspect carry-on luggage. Most of the passengers brought too many bags, too large and/or over the weight limit. This undermines safety and discourages those who pay extra for checked bags just to comply with the airline regulations. If the airline is not inspecting carry-on luggage, why should I pay more just to check in some bags?

Terrible, I will never ever ever attempt to fly on Cebu Pacific. I understand that it’s a cheap flight option but they take cheap experience to the next level.

The front desk and early check in was fantastic and the flight did not have any turbulence

better handling of the checked in luggage. they destroyed mine

Should’ve not separated those who checked-in online and those who checked-in at the airport

the process of paying for the excess baggage weight, the check in process and the boarding process are subhuman. this is an airline devoid of customer service

Cebu Pac has a habit of changing boarding gates. They do a lot of remote boarding. So just be attentive to the announcements, especially if it's near your boarding time.

It was a low cost flight, so no high expectations. The experience was average.

Crew was very helpful because I used a wheelchair to get around

Flight was delayed for almost 30 minutea, I had difficulties to catch up the connecting flight. Bit due to tje well organized Singapore airport I was able to make it

The flight was delayed by an hour . Traveling with 75 year old father was difficult and then when he asked for water he was asked to purchase :-) . Overall just an ok experience.

Overall service is good, the only thing I would like airasia to improve is there seating. Their seat handles are broken as well as the back rest

Boarding with air asia is excellent via organized lines by zone except when there is only 1 gate agent and no scanner, only by tearing tickets??? Crazy

The flight was supposed to depart at 9:25. It departed at 9:00. Im glad we were early and did not miss it.

They wouldn't even allow us to bring water from the fountain on board the aircraft.

Premium seats should have legroom this one didn't have it. I had 2 free checked bag but I got charged for while it shows on my reservation

Terrible airline! This airline just ruined our family vacation due to a 12 hours delay as a result of their operational issues.

Too many flight delays. Airport terminal serving Boracay needs upgrades.

Over 6 hours delayed.. using philippine air fleet planes are beat up dirty and uncomfortable. Have been flying air asia for over 4 years from Manila to Tokyo and kansai as well as several local flights from Manila to Bacolod and Cebu.. 3 planes were down for maintenance and caused havoc.. need to invest in new fleet or seriously clean and upgrade the existing fleet. Will not be flying anymore until fixed. Several options out there now to choose from as air asia prices have skyrocketed.. no point in using them anymore . Severally upset passenger here. They can’t even manage the queuing of Zones for boarding as it’s a crab fest free for all now. No discipline and let the passengers in line to board just run into any lane possible.. and priority luggage?? Forget it I’ve paid for it for the last 6 flights and never got it first.. air asia has turned into a expensive joke.. use Cebu pacific or zip air now..

We had three flight delays before eventually taking off 3 hours late. Inflight service was very limited, but it was a relatively short flight. Luggage was delivered promptly.

Paid for seats near the window but given seats right at the back, near the toilets. This location was so noisy with the blasts from the aircraft engines blowing beside. Not a nice one 😞.

Flight was delayed 2 hours, which seems regular with this airline. Aircrew were avarage, friendly but robotic. At check in I asked for a spare seat. Got some stupid response about loading capacity (it was 85% full!) Then passengers behind jumped up and moved to vacant exit rows, they obviously didn't pay for. Waited over 20+ minutes to disembark, with ground staff trying to squash all passengers onto 1 bus. Causing even more delays. Unsafe and stupid! But this is a problem at Saigon airport. Overall a very average experience!

In experience we didn't even get water unless it was paid for. Even Bamboo Airlines provided free water. The flight was cold with no blanket being provided. The flight attendants were not responsive in keeping the passengers under control. I complained about fellow passengers playing loud music several times before one of the flight attendants to action. I will not recommend flying with Vietjet unless things improve.

I have few bad reviews about VietJet, but my experience was really good and it worth every penny..

Not even free water. NO legroom. Narrow seats. Not enough room to even hold a book at reading distance in front of you.

No food? No movies? No water?? On an international flight, really???

No water or snacks. Crew did not give us arrival cards. There was no need for more than 1 flight attendant as they did not do anything

I got to the airport and flight was cancelled without notice

Some chair in the flight should be maintained, but I think they may not have time to check every seats, since it is high demand in this period.

Our experience was the worst. Over 2 days flight was changed and delayed 4 times. Not impressed

Book cheap flights from Incheon to Southeast Asia

Recent return flight deals

25/5Sat
directJeju Air
5h 55mICN-BKK
31/5Fri
directJeju Air
5h 35mBKK-ICN
$289
18/5Sat
directJeju Air
5h 55mICN-BKK
21/5Tue
directJeju Air
5h 35mBKK-ICN
$292
28/5Tue
directT'way Air
5h 50mICN-BKK
2/6Sun
directT'way Air
5h 35mBKK-ICN
$300
16/6Sun
1 stopVietnam Airlines
10h 00mICN-BKK
19/6Wed
1 stopVietnam Airlines
8h 45mBKK-ICN
$322
10/6Mon
1 stopVietnam Airlines
10h 00mICN-BKK
15/6Sat
1 stopVietnam Airlines
8h 45mBKK-ICN
$324
15/6Sat
directT'way Air
5h 50mICN-BKK
17/6Mon
directT'way Air
5h 35mBKK-ICN
$333
28/5Tue
directKorean Air
5h 45mICN-BKK
3/6Mon
directKorean Air
5h 25mBKK-ICN
$496
23/5Thu
directKorean Air
5h 50mICN-BKK
19/8Mon
directKorean Air
5h 25mBKK-ICN
$548
12/7Fri
1 stopVietJet Air
15h 35mICN-DPS
15/7Mon
1 stopVietJet Air
15h 20mDPS-ICN
$628
21/7Sun
1 stopVietJet Air
30h 05mICN-DPS
27/7Sat
1 stopVietJet Air
26h 55mDPS-ICN
$664

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Recent one-way flight deals

20/5Mon
directJeju Air
5h 55mICN-BKK
$138
19/5Sun
directThai AirAsia X
5h 50mICN-BKK
$145
19/5Sun
directJin Air
5h 40mICN-BKK
$147
7/7Sun
1 stopVietnam Airlines
10h 00mICN-BKK
$175
11/6Tue
1 stopVietnam Airlines
10h 00mICN-BKK
$180
12/5Sun
1 stopVietJet Air
30h 05mICN-DPS
$200
19/5Sun
1 stopCebu Pacific
28h 00mICN-BKK
$265
15/6Sat
1 stopVietJet Air
25h 10mICN-DPS
$310
12/5Sun
directKorean Air
7h 00mICN-DPS
$608
15/6Sat
directKorean Air
7h 00mICN-DPS
$622

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Last minute flights from Incheon Intl to Southeast Asia

Last minute flight, train and bus deals

8/5Wed
directJeju Air
5h 55mICN-BKK
13/5Mon
directJeju Air
5h 35mBKK-ICN
$292
8/5Wed
directT'way Air
5h 50mICN-BKK
13/5Mon
directT'way Air
5h 35mBKK-ICN
$300
10/5Fri
multi-stopShenzhen Airlines
11h 35mICN-BKK
11/5Sat
multi-stopShenzhen Airlines
10h 25mBKK-ICN
$339
8/5Wed
multi-stopShenzhen Airlines
11h 35mICN-BKK
14/5Tue
multi-stopShenzhen Airlines
18h 15mBKK-ICN
$349
8/5Wed
directKorean Air
5h 45mICN-BKK
14/5Tue
directKorean Air
5h 45mBKK-ICN
$542
10/5Fri
directKorean Air
5h 40mICN-BKK
14/5Tue
directKorean Air
5h 45mBKK-ICN
$594
11/5Sat
multi-stopVietnam Airlines
26h 00mICN-BKK
15/5Wed
multi-stopVietnam Airlines
19h 05mBKK-ICN
$670
7/5Tue
multi-stopVietnam Airlines
10h 15mICN-BKK
11/5Sat
multi-stopVietnam Airlines
24h 10mBKK-ICN
$723
9/5Thu
multi-stopVietJet Air
25h 45mICN-DPS
1/7Mon
multi-stopVietJet Air
15h 20mDPS-ICN
$846
9/5Thu
multi-stopVietJet Air
30h 05mICN-DPS
15/5Wed
multi-stopVietJet Air
16h 50mDPS-ICN
$855

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Seoul Incheon Airport - Southeast Asia Flights

Departure:

Incheon (ICN)South Korea

Return flight deals:

Southeast Asia - Incheon

Cabin classes:

$781
$616
$153

Browse origins:

  • Flights » 
  • Seoul » 
  • Seoul Incheon Airport

Browse destinations:

  • Flights » 
  • Southeast Asia