฿4,110 Find Cheap Flights to Seoul – 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 to Seoul departing on 11/8. 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.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
฿7,317
Typical prices: ฿12,730-฿17,241
Jeju Air, Air Busan
Thu 17/9Sat 26/9
CNX - ICN • Direct
Cheapest one-way flight
฿4,110
Typical prices: ฿6,148-฿8,554
Jeju Air
Tue 11/8
CNX - ICN • Direct
Top airlines
Most flights • 35 per week
Best reviews • 8.4 score
Airline reviews
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Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 8% compared to booking last minute.
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When to travel
Cheapest • 20% price drop
Most popular
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Seoul

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Seoul 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 to Seoul

Thu 17 Sep - Sat 26 Sep
Multiple Airlines Logo
23:00 - 06:30
CNX
-
ICN
5h 30mdirect
Multiple Airlines Logo
19:55 - 23:50
ICN
-
CNX
5h 55mdirect
฿7,317Multiple Airlines
Wed 12 Aug - Sun 23 Aug
Jeju Air Logo
23:00 - 06:30
CNX
-
ICN
5h 30mdirect
Jeju Air Logo
18:10 - 22:00
ICN
-
CNX
5h 50mdirect
฿7,551Jeju Air
Sun 6 Sep - Thu 10 Sep
Multiple Airlines Logo
23:00 - 06:30
CNX
-
ICN
5h 30mdirect
Multiple Airlines Logo
19:55 - 23:50
ICN
-
CNX
5h 55mdirect
฿7,551Multiple Airlines
Wed 12 Aug - Wed 19 Aug
Jeju Air Logo
23:00 - 06:30
CNX
-
ICN
5h 30mdirect
Jeju Air Logo
18:10 - 22:00
ICN
-
CNX
5h 50mdirect
฿7,551Jeju Air
Wed 30 Sep - Thu 15 Oct
Eastar Jet Logo
23:55 - 07:10
CNX
-
ICN
5h 15mdirect
Eastar Jet Logo
18:30 - 22:40
ICN
-
CNX
6h 10mdirect
฿8,119Eastar Jet
Thu 1 Oct - Thu 15 Oct
Eastar Jet Logo
23:55 - 07:10
CNX
-
ICN
5h 15mdirect
Eastar Jet Logo
18:30 - 22:40
ICN
-
CNX
6h 10mdirect
฿8,119Eastar Jet
Wed 12 Aug - Sun 16 Aug
Thai Vietjet Air Logo
02:25 - 10:00
BKK
-
ICN
5h 35mdirect
Thai Vietjet Air Logo
12:10 - 16:00
ICN
-
BKK
5h 50mdirect
฿9,389Thai Vietjet Air
Wed 26 Aug - Fri 28 Aug
Thai Vietjet Air Logo
02:25 - 10:00
BKK
-
ICN
5h 35mdirect
Thai Vietjet Air Logo
12:10 - 16:00
ICN
-
BKK
5h 50mdirect
฿9,389Thai Vietjet Air
Mon 21 Sep - Wed 30 Sep
Vietnam Airlines Logo
14:25 - 06:40
BKK
-
ICN
14h 15m
1 stop
Vietnam Airlines Logo
18:05 - 10:50
ICN
-
BKK
18h 45m
1 stop
฿9,389Vietnam Airlines
Thu 19 Nov - Thu 17 Dec
Vietnam Airlines Logo
14:20 - 06:30
BKK
-
ICN
14h 10m
1 stop
Vietnam Airlines Logo
18:05 - 11:20
ICN
-
BKK
19h 15m
1 stop
฿9,389Vietnam Airlines
Booking Insights

KAYAK's insights & trends for flights to Seoul

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

What is the cheapest flight to Seoul?

These are the best return prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Seoul was found on the route from Chiang Mai, at ฿7,317 return. The most popular connection is from Bangkok to Seoul, while KAYAK users have found return deals for as low as ฿9,389 in the last 5 days.

How much is a flight to Seoul?

The average and cheapest price for all round-trip flights to Seoul from each origin found by users searching on KAYAK in the last month.

A flight to Seoul costs ฿13,577 on average. The cheapest price found on KAYAK in the last 2 weeks cost ฿3,780 and departed from Chiang Mai. The most popular routes on KAYAK are Chiang Mai to Seoul which costs ฿10,051 on average, and Bangkok to Seoul, which costs ฿15,280 on average.

See prices from:

What is the cheapest day to fly to Seoul?

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

Based on KAYAK data, the cheapest day to fly to Seoul is Friday where round-trip tickets can be as cheap as ฿14,203. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are ฿19,182 on average.

What is the cheapest month to fly to Seoul?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Seoul, 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 to Seoul is November, where tickets cost ฿8,186 on average for return flights. On the other hand, the most expensive months are December and April, where the average cost of tickets from Thailand is ฿12,162 and ฿11,828 respectively. For one-way flights, the best month to travel is September with an average price of ฿4,143.

What is the cheapest time of day to fly to Seoul?

The average price for all round-trip flights to Seoul depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Seoul is generally at night, when round-trip flights cost ฿12,095 on average. The most expensive time of day to fly to Seoul is generally in the morning, which is peak travel time and where the average cost of a ticket is ฿27,501.

What is a good deal for flights to Seoul?

If you’re looking for cheap airfare to Seoul, 25% of our users found tickets to Seoul for the following prices or less: From Chiang Mai ฿10,051 return, from Bangkok Suvarnabhumi Airport ฿12,615 return, from Phuket City ฿42,804 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Seoul, 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, you should book around 2 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Which is the cheapest airport to fly into in Seoul?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Seoul is Seoul Gimpo Intl Airport (GMP), with an average flight price of ฿5,121.

Good to know – Book Cheap Seoul Plane Tickets

Low season

January

Cheapest flight

฿4,110
Best time to beat the crowds (1% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from Chiang Mai to Seoul Incheon Airport

When to book flights to Seoul

Are your dates flexible? Find out the best times to travel to Seoul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Seoul based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights to Seoul: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew to Seoul 
Verified travelerFlew with Asiana Airlines
BKK
-
ICN
Jun 2025
Do not check a suitcase take a carry on
ArthurFlew with เดลต้า
BKK
-
ICN
Jul 2024
Make sure to select an aisle seat. Korean Aur flight attendants are. very nice and try to help . My overhearing light was broken !

FAQs - booking Seoul flights

  • What is the cheapest flight to Seoul?

    In the last 5 days, the cheapest flight deal to Seoul was found on the route from Chiang Mai, at ฿7,317 return. The most popular connection is from Bangkok to Seoul, while KAYAK users have found return deals for as low as ฿9,389 in the last 5 days.

  • Which Seoul airport is closest to central Seoul?

    The distance between Seoul Gimpo Intl and the city centre of Seoul is 15 km, which makes it the closest of the 2 Seoul airports airports. Seoul Incheon Airport is 22 km away from the centre.

  • How much is a flight to Seoul?

    On average, a flight to Seoul costs ฿13,577. The cheapest price found on KAYAK in the last 2 weeks cost ฿3,780 and departed from Chiang Mai Airport.

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

    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 to Seoul.

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

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

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

    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 to Seoul 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 to Seoul?

    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 Seoul 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 Seoul

  • Looking for a cheap flight? 25% of our users found flights on this route for ฿10,549 or less one-way and ฿19,398 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seoul flight deals.

Reviews of the top 5 airlines flying to Seoul

 
See real verified KAYAK customer reviews for airlines flying to Seoul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to Seoul. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Seoul? 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 1223 reviews
8.1Food
8.2Entertainment
8.3Comfort
8.5Boarding
8.7Crew
Airline reviews

Excellent. All well and accommodating. Clean and very good food. Peaceful travel experience

10.0 ExcellentBernadette, Jun 2026
MNL - ICN
Read more Korean Air reviews

Excellent. All well and accommodating. Clean and very good food. Peaceful travel experience

The food wasn't to good but the crews were great, clean plan clean bathrooms always

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Reasonable fair, good service, in sum, I am very happy!

Seating was good in the economy with plenty of leg room. The seat cushions were a little firm though, especially for such a long flight. All meals were Korean as would be expected. The food was typical airline quality. Edible, but not something you would recommend to friends. Inflight entertainment was also all Korean but Korean tv and movies are made well and you can find something to watch. Just be prepared to read subtitles. Overall it was a good flight, especially for the price.

The person in front of me was rude. He may came from some communism countries and don’t care of other people. No common manner and sense between human being.

Very nice staff, airplanes, and an excellent value in premium economy.

First time flying with them and was pleasantly surprised. I had a premium economy seat which is very similar to some other airlines regional business class product. Seat was large, pillow was provided, huge amount of leg room, entertainment was available (only Korean shows), and lunch meal was served between Narita and Seoul. Really enjoyable and affordable

The staff were very friendly, and the flight was comfortable. That said, there was no option to specify dietary restrictions before the flight, so you may need to bring your own food. Also, there was no wifi available for the flight, though there is an in-flight entertainment console with many Korean-language shows and movies.

The legroom was great for a 5’11” person. The 11 hour direct flight had two meal services included in the ticket price which was less than other airline’s cost without food service (Canada air)from sfo to incheon. The airline is focused towards Korean nationals with the onboard entertainment selection of Korean movies but English subtitles were available. Overall premia air is a great option to fly from the US to Korea.

Plane and service were great. The entertainment is only for Koreans. Wish there were vegetarian options for food. All in all pleasantly surprised. Economy premium was quite good.

Great airline, but there was no English entertainment (movies or shows)

One of our luggage items was damaged during our flight to Newark from Incheon. Although our email communication was not responded to, when discussing the matter with the staff at the Newark checkin before our return flight to Incheon, we were provided with a free replacement luggage item. This customer service was, overall, very satisfactory.

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

Newer plane and comfortable. No wifi and thier website and App. are horrible. Tried to purchase luggage online and could not do it.

I don't like this airline. The website is not user friendly. I tried to check in multiple times and no joy. Then I googled why might this airline not let me check in and it said if you are checking baggage you can't check in. I really thought that I had purchased baggage. Because I have been traveling for 3 months and making sure that I pay for baggage on every flight. This flight they said that I had not purchased baggage but there is really no way to check on the passenger side.

I wasn't able to check in. The website could find my reservation but then an error occurred. I tried 4 times spread out through the day and got the error message every time.

well it was a short flight so there was no food but couldnt answer that question with a N/A There was no entertainment so N/A but the flight was great and staff was number #1

Never on time when I fly and Thai Vietjet App is too complicated. I had booked und paid for seat number 15A but when checked in, I got another seat number and row. I paid extra 50 bath for what??? They couldn’t change and I got no refund. No time to discuss with the ground crew to change it. I would never pay for seat anymore.

Excellent experience nothing could be improved with staff. Was hoping someday the airline will use tape recorded lfor languages that are not common to staff. Probably with AI it might be a good addition

We were packed in like sardines. They did not even serve water on the flight!

Everything was good just the part on the need to transfer via bus to plane

Around Asia, Vietjet is always my favorite airline. Great service and beautiful stewardesses :)

I get tired of Viet Jet's regular delays. I tell myself every time that I need tp switch to Air Asia, which I have, but AA doesn't always have flights when I need them. Oh well...

Good seats. Check in, baggager, etc ... all went smoothly. Those are the things that matter. Food could have been better. Also ok, you are a budget airline, but maybe you could offer us plain bottled water. That wouldn't cost much and it is difficult to bring ourselves and difficult to be without.

The flight on the 8.10was canceld so i had to by tickt on anather airline As the low say i will need a full refand of the mony i paid you for this flight! Thenk you Dan richental

No snacks meal or drinks for 9hr flight, no entertainment options. Crew appeared tired, irritable. It's apparently a budget airline, they make sure it feels that way.

Un peu déçu par le vol, c’est la première fois que je prend un vol de 6h ou les boissons et la nourriture sont payantes et pas inclus dans le vol. Peut être que c’est propre à la compagnie mais ça m’a surprise. Le fait qu’il n’y est pas d’écran pour pouvoir passer le temps était aussi un point négatif. Cependant le personnel était très agréable.

First time of flying with Air Asia and great choice

Don't even offer water on a 5 and half hours flight. Its laughable one have to rent a blanket.

No free water. Water cost money in a currency that I didn’t have.

Pay for food on an almost 6 hour flight. Very tight space, I had to show my boarding pass for the food I paid and the blanket set. I had an online boarding pass, that didn’t work, I had to take out the printed boarding pass out of the overhead locker whilst my neighbour was eating, as I was sitting in a Center seat. The staff was very friendly and got my bag out but it didn’t make sense. As the online boarding pass was enough for the blanket set. But not for the food. Just to make a check on the piece of paper. I had a warm free meal on an one hour flight from BKK to Samui with Bangkok airways. So airasia just tries to save money where they can.

Everything you need to know for your flight to Seoul

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.