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Cheap Flights from Incheon Intl to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Manila
Manilanonstop$194
Ho Chi Minh City
Ho Chi Minh Citynonstop$221
Singapore
Singaporenonstop$259
Denpasar
Denpasar1 stop$292
Hanoi
Hanoinonstop$193
Phuket City
Phuket City1 stop$243
Cebu City
Cebu Citynonstop$182
Da Nang
Da Nangnonstop$166
Phnom Penh
Phnom Penh1 stop$252
Chiang Mai
Chiang Mainonstop$202
Angeles City
Angeles Citynonstop$201
Boracay
Boracay1 stop$258
Vientiane
Vientianenonstop$280
Davao City
Davao City1 stop$271
Manila
Manilanonstop$194
Ho Chi Minh City
Ho Chi Minh Citynonstop$221
Singapore
Singaporenonstop$259
Denpasar
Denpasar1 stop$292
Hanoi
Hanoinonstop$193
Phuket City
Phuket City1 stop$243
Cebu City
Cebu Citynonstop$182
Da Nang
Da Nangnonstop$166
Phnom Penh
Phnom Penh1 stop$252
Chiang Mai
Chiang Mainonstop$202
Angeles City
Angeles Citynonstop$201
Boracay
Boracay1 stop$258
Vientiane
Vientianenonstop$280
Davao City
Davao City1 stop$271
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?

The cheapest ticket to Southeast Asia from Incheon Intl Airport found in the last 5 days was to Da Nang, at $114 round-trip. The most popular route is from Incheon Intl Airport (ICN) to Bangkok Suvarnabhumi Airport (BKK), and the cheapest round-trip airline ticket found on this route in the last 5 days was $205.

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 round-trip flights cost $302 on average. Morning departures are around 8% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is $374.

Can I save money by flying with a layover from Incheon Intl Airport to Southeast Asia?

No, with an average price for the route of $584, prices are generally cheapest when you fly direct.

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

The cheapest month for flights from Incheon Intl Airport to Southeast Asia is September, when tickets cost $222 (return) on average. On the other hand, the most expensive months are February and July, when the average cost of round-trip tickets is $322 and $315 respectively.

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

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

How far in advance should I book a flight from Incheon Intl Airport to Southeast Asia?

To get a below average price on the flight from Incheon Intl Airport to Southeast Asia, you should book around 2 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

June

Cheapest flight

$73
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from Incheon to Nha Trang

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

Insights shared by verified travelers who flew the route from Incheon Intl to Southeast Asia 
Kent ThienFlew with Korean Air-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-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 travelers 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 round-trip 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: Bangkok $137 one-way - $314 round-trip; Manila $111 one-way - $234 round-trip; Singapore $181 one-way - $460 round-trip

Reviews of the 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.
8.4
Korean AirOverall score based on 1221 reviews
8.5Boarding
8.3Comfort
8.2Entertainment
8.1Food
8.7Crew
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
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.

Just good - short flight. Not much happens. Left on time and arrived on time.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Kayak uses scammer sites to steal money from their victims.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

Coming back to America was a peaceful flight everyone and everything was perfect

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

It was all perfect and very pleasant for such long flights

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.

The staff were excellent, the seat comfort is very poor on a three hour flight, Scoot Airline seats were poor quality also, they are okay for a short flight time of no more than one hour!

No entertainment and not expected. Cabin was very cold which brought the comfort score down

Boarding had us in a tunnel with no AC for 15 minutes. Not planned well. And you have to pay for water, get at airport

Kind of worried due to typhoon but yeah we can't do about nature thing. So okay naman kudos to all crews and pilots for the safe landing.

"usual delay" for an hour.. they are usually missing punctuality.

better handling of the checked in luggage. they destroyed mine

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

Flight was 2 hours delayed. No explanation provided. Gates changes twice.

Waited Over 5 Hours for a 1 1/2 hour Flight. Manila AirPort is absolutely pathetic. This was after Cebu Pacific personnel tried to overcharge me for excess baggage.

I am 74 hrs old and I appreciate walking on the ramp instead of using the stairs. Too bad they didn’t have that on the return.

For budget airline, it’s not bad at all. It’s definitely value for money. I added on the priority check in and eSIM. It’s well worth it.

Late departure, late arrival, and personal items on laps during takeoff and landing. Departure gate opened on time, but no direction as to whether to board at front or rear of plane based on seat number. Fashionable staff with sunglasses inside the plane and cockpit remained for ten minutes after the boarding complete announcement. For a scheduled 80 minute flight, adjusted to 65 minute as noted on takeoff; the total time on the plane with delays was r more than two hours. No confidence had there been an emergency that anyone would have been able or aware of what to do.

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.

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

VietJet was 2 hours late, but Kayak is not able to track my travel correct.

Very bad experience and will never try their service again. Not even water serve for 8hr flight. Will have to wait for every prepurched to cimplete before can buy water.

They do not even give you water. Have to pay for that and not cheap. Staff had some friendly and some very unfriendly. Terrible experience

I wasn’t able checkin on line so wasn’t given option buy food so I had to site watch everyone eat when I was hungry. That’s F-up

The actual flight was ok, everything else terrible worst airline in South East Asia, delayed twice and eventually took off late again, waiting in room at gate before flight no staff there no information about second delay, jammed on bus with doors closed waiting to be taken to the plane, just a disgusting airline, do not ever rely on this Vietjet will always cancel or delay your flight, and it’s not cheap when you see luggage price and other add ons, if possible try to book a better airline Bamboo air etc

No in flight entertainment, no food, not even drinking water, uncleaned flights, smelly bathrooms, and above all no baggage allowance, they charged us 53700 yen for the baggages.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports