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฿3,754+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Seoul in 2026

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 8 January 2026.

Return from

฿5,412

One-way from

฿3,754

Popular in

December

Cheapest in

September

Average price

฿9,947
Thai AirAsia X
  • Thai AirAsia X
  • 10/3-14/3
  • Nonstop
  • 11h 45m total
  • Bangkok to Seoul
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Thai AirAsia X
  • Thai AirAsia X
  • 7/2
  • Nonstop
  • 5h 35m total
  • Bangkok to Seoul
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Highest demand for flights based on searches. 9% potential increase in price (฿878 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (฿203 potential savings vs. average return price).
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Average for return flights in January 2026
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Find flight deals to Seoul

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 8 January 2026.

Tue 10/302:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Sat 14/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 6/1฿5,412
Wed 14/102:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Sun 15/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 6/1฿5,474
Tue 10/302:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Sun 15/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 7/1฿5,505
Thu 12/302:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Mon 16/312:30ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 8/1฿5,537
Fri 13/302:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Tue 17/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 8/1฿5,568
Tue 10/309:00DMK - ICN
Nonstop5h 35mThai AirAsia X
Thu 12/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 7/1฿5,599
Tue 24/302:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Sat 28/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 7/1฿5,599
Sat 7/303:30DMK - ICN
Nonstop4h 35mThai AirAsia X
Fri 13/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 7/1฿5,631
Sat 21/302:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Sat 28/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 6/1฿5,662
Wed 18/302:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Thu 26/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 6/1฿5,662
Tue 17/309:00DMK - ICN
Nonstop5h 35mThai AirAsia X
Sat 28/311:20ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 6/1฿5,693
Tue 17/302:25BKK - ICN
Nonstop5h 30mThai Vietjet Air
Tue 24/312:10ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 6/1฿5,693

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 8 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

Thu 5/3

09:00-16:35

Nonstop5h 35m

Incheon Intl

Thu 12/3

11:20-15:30

Nonstop6h 10m

฿5,787

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sat 7/3

09:00-16:35

Nonstop5h 35m

Incheon Intl

Wed 11/3

11:20-15:30

Nonstop6h 10m

฿6,225

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 25/3

02:30-10:05

Nonstop5h 35m

Incheon Intl

Tue 31/3

11:20-15:30

Nonstop6h 10m

฿6,475

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Tue 3/3

09:00-16:35

Nonstop5h 35m

Incheon Intl

Fri 6/3

11:20-15:30

Nonstop6h 10m

฿6,632

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Tue 27/1

03:35-11:10

Nonstop5h 35m

Incheon Intl

Fri 30/1

13:30-17:15

Nonstop5h 45m

฿6,851

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Tue 24/2

02:30-10:05

Nonstop5h 35m

Incheon Intl

Thu 5/3

11:20-15:30

Nonstop6h 10m

฿6,913

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 11/2

02:30-10:05

Nonstop5h 35m

Incheon Intl

Wed 18/2

11:20-15:30

Nonstop6h 10m

฿7,101

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 21/1

06:00-13:35

Nonstop5h 35m

Incheon Intl

Sun 25/1

12:35-16:45

Nonstop6h 10m

฿7,163

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sat 24/1

19:25-09:50

1 stop12h 25m

Incheon Intl

Wed 28/1

12:25-16:35

Nonstop6h 10m

฿7,601

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

฿7,633

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 60 results
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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 30 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 Wednesday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (36 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 T'way Air.

Thai AirAsia X
Thai AirAsia X
From ฿5,163
Thai Airways
Thai Airways
From ฿12,219
T'way Air
T'way Air
From ฿3,432
Air Busan
Air Busan
From ฿6,788

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 8 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

Crew

9.0

Entertainment

7.1

Overall

8.3

Boarding

8.2

Comfort

8.3

Food

7.4

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

Crew

9.0

Entertainment

7.1

Overall

8.3

Boarding

8.2

Comfort

8.3

Food

7.4

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
376 reviews
AIR PREMIA
8.3
Very Good
Check prices

Crew

9.0

Entertainment

7.1

Overall

8.3

Boarding

8.2

Comfort

8.3

Food

7.4

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 ฿972, while return flights cost around ฿4,539.

  • How much is a return flight to Seoul?

    A return flight to Seoul will typically cost around ฿4,554, however they can be found for as little as ฿4,539.

  • 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

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