Find flights
Deals
Airlines

฿3,777+ Cheap flights to Seoul

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
3 Feb — 10 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Seoul in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 4 January 2026.

Thu 12/309:00DMK - ICN
Nonstop5h 35mThai AirAsia X
Wed 18/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 2/1฿5,886
Tue 24/302:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Sun 29/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 3/1฿5,917
Wed 11/302:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Fri 20/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 2/1฿5,917
Mon 9/302:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Sun 22/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 2/1฿5,949
Sun 31/502:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Sun 7/611:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 2/1฿5,980
Sat 7/303:25BKK - ICN
Nonstop4h 30mThai Vietjet Air
Fri 13/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 3/1฿5,980
Thu 26/209:00DMK - ICN
Nonstop5h 35mThai AirAsia X
Mon 2/312:30ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 2/1฿6,012
Tue 10/302:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Sun 15/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 3/1฿6,012
Fri 8/502:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Fri 15/511:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 3/1฿6,043
Mon 9/302:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Sun 22/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 2/1฿6,043
Wed 27/502:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Fri 19/611:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 1/1฿6,075
Tue 10/302:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Sat 14/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 3/1฿6,075

Find flight deals to Seoul

Find the latest flights to Seoul in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 4 January 2026.

Return from

฿5,886

One-way from

฿3,777

Popular in

December

Cheapest in

September

Average price

฿10,009
Thai AirAsia X
  • Thai AirAsia X
  • 12/3-18/3
  • Nonstop
  • 11h 45m total
  • Bangkok to Seoul
Search Deals
21/1
  • 21/1
  • 2 total stops
  • 13h 35m total
  • Bangkok to Seoul
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿883 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿204 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Seoul that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 4 January 2026.
Use the filters below to find and compare flights to Seoul that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sat 17/1

03:45-11:20

Nonstop5h 35m

Incheon Intl

Sat 14/3

11:20-15:30

Nonstop6h 10m

฿6,075

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sun 18/1

07:30-19:25

1 stop9h 55m

Incheon Intl

Sat 14/3

11:20-15:30

Nonstop6h 10m

฿6,925

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Mon 25/5

02:30-10:05

Nonstop5h 35m

Incheon Intl

Sun 14/6

11:20-15:30

Nonstop6h 10m

฿7,019

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Tue 13/1

02:25-09:55

Nonstop5h 30m

Incheon Intl

Wed 21/1

22:10-01:25

1 stop29h 15m

฿7,051

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 14/1

06:00-13:35

Nonstop5h 35m

Incheon Intl

Sun 18/1

12:35-16:45

Nonstop6h 10m

฿7,208

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 4/2

02:30-10:05

Nonstop5h 35m

Incheon Intl

Tue 10/2

11:20-15:30

Nonstop6h 10m

฿7,302

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Fri 16/1

03:20-10:55

Nonstop5h 35m

Incheon Intl

Wed 21/1

14:50-19:00

Nonstop6h 10m

฿7,523

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Fri 23/1

02:30-10:05

Nonstop5h 35m

Incheon Intl

Sat 14/3

11:20-15:30

Nonstop6h 10m

฿7,523

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Sat 17/1

20:05-19:25

1 stop21h 20m

Incheon Intl

Sat 14/3

12:10-16:20

Nonstop6h 10m

฿7,554

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Tue 17/3

02:25-09:55

Nonstop5h 30m

Incheon Intl

Fri 20/3

12:10-16:20

Nonstop6h 10m

฿7,649

Flights are sorted by cheapest return flights first.

Deals found on 4/1

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Seoul

When is the best time to book a flight to Seoul?

Use this chart to determine the optimal time to book a return flight from Bangkok to Seoul. Price data was last updated on 2 January 2026.

The price you pay for your flight to Seoul may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Seoul?

On average, a flight from Bangkok to Seoul takes 7 hours 40 minutes. Flights to Seoul from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Seoul

The most flights from Bangkok to Seoul are scheduled on a Friday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (40 on average).

What are the most popular airlines that fly to Seoul?

The most popular airlines flying from Bangkok to Seoul are Thai AirAsia X, Thai Airways and Air Busan.

Thai AirAsia X
Thai AirAsia X
From ฿5,195
Thai Airways
Thai Airways
From ฿12,295
T'way Air
T'way Air
From ฿3,454
Air Busan
Air Busan
From ฿6,831

What are the cheapest airlines that fly to Seoul?

The cheapest airlines flying from Bangkok to Seoul are Vietnam Airlines, Jin Air and Thai Vietjet Air.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 mm per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated 4 January 2026.
Check out reviews from past customers who have flown AIR PREMIA and Thai Airways to South Korea to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
AIR PREMIA
8.3
Very Good
Check prices

Boarding

8.2

Entertainment

7.1

Food

7.4

Crew

9.0

Comfort

8.3

Overall

8.3

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

Extremely excellent. It is now my airline of choice! Fantastic airline!
AIR PREMIA
8.3
Very Good
AIR PREMIA
8.3
Very Good
Check prices

Boarding

8.2

Entertainment

7.1

Food

7.4

Crew

9.0

Comfort

8.3

Overall

8.3

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

Extremely excellent. It is now my airline of choice! Fantastic airline!
Thai Airways
7.8
Good
373 reviews
AIR PREMIA
8.3
Very Good
Check prices

Boarding

8.2

Entertainment

7.1

Food

7.4

Crew

9.0

Comfort

8.3

Overall

8.3

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

Extremely excellent. It is now my airline of choice! Fantastic airline!

FAQs about flying to Seoul

  • Can I find cheaper flights to Seoul if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Seoul on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Seoul?

    Based on reviews from Cheapflights users, Vietnam Airlines is rated the highest out of the airlines that fly to Seoul.

  • What is the cheapest airport to fly to in Seoul?

    Seoul Gimpo Intl is currently the cheapest airport to fly to in Seoul. One-way flights to Seoul Gimpo Intl typically cost ฿978, while return flights cost around ฿4,567.

  • How much is a return flight to Seoul?

    A return flight to Seoul will typically cost around ฿4,583, however they can be found for as little as ฿4,567.

  • Where does the fastest flight to Seoul depart from?

    For those looking to save time traveling to Seoul, Chiang Mai offers the quickest one-way flight (5 hours 5 minutes).

  • Does Incheon Intl have rental cars?

    Yes. Those touching down at Incheon Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Incheon Intl?

    Yes. Incheon Intl has hotels nearby for those requiring accommodations. Darakhyu Incheon Airport Terminal 2 Capsule Hotel by Walkerhill is the closest property to Incheon Intl (0.0 km away from Incheon Intl).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find the best flight deals to Seoul

Some of the lowest fares we’ve come across for flights to Seoul.
Flights from Chiang Mai to Incheon Intl

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Seoul?

Cheapflights helps you search for flights to Seoul via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets to Seoul?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Seoul for you. Better yet — we are completely free to use.

Can Cheapflights find flights to Seoul with no change fees?

Need flexible booking options for your flight to Seoul ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights to Seoul become cheaper?

Of course! You can track prices for flights to Seoul and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.