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฿3,084+ 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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
17 Jul — 24 Jul1
1 adult

Flights to Seoul in 2025

Find the latest flights to Seoul in 2025, 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 12 July 2025.

Return from

฿5,778

One-way from

฿3,084

Popular in

December

Cheapest in

June

Average price

฿8,764
Thai AirAsia X
  • Thai AirAsia X
  • 31/8-19/9
  • Nonstop
  • 11h 45m total
  • Bangkok to Seoul
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Thai AirAsia X
  • Thai AirAsia X
  • 18/7
  • Nonstop
  • 5h 35m total
  • Bangkok to Seoul
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿45,290 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (฿9,338 potential savings vs. average return price).
Search Deals
Average for return flights in July 2025
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Find flight deals to Seoul

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 12 July 2025.

Tue 14/1001:45BKK - ICN
Nonstop5h 35mThai Vietjet Air
Fri 31/1015:45ICN - BKK
Nonstop6h 10mThai Vietjet Air
Deal found 10/7฿5,745
Sun 31/802:45DMK - ICN
Nonstop5h 35mThai AirAsia X
Fri 19/911:35ICN - DMK
Nonstop6h 10mThai AirAsia X
Deal found 11/7฿5,778
Thu 21/800:05BKK - ICN
Nonstop5h 35mMultiple Airlines
Mon 25/811:05ICN - BKK
1 stop8h 00mMultiple Airlines
Deal found 10/7฿6,135
Thu 21/800:05BKK - ICN
Nonstop5h 35mT'way Air
Sun 31/818:00ICN - BKK
Nonstop6h 35mT'way Air
Deal found 11/7฿6,459
Mon 8/910:30DMK - ICN
1 stop17h 45mMultiple Airlines
Fri 12/911:35ICN - DMK
Nonstop6h 10mMultiple Airlines
Deal found 10/7฿6,979
Mon 1/921:05BKK - ICN
1 stop7h 35mVietnam Airlines
Sat 11/1018:05ICN - BKK
1 stop18h 45mVietnam Airlines
Deal found 9/7฿7,725
Thu 10/702:50BKK - ICN
1 stop17h 05mShandong Airlines
Thu 24/712:15ICN - BKK
1 stop15h 35mShandong Airlines
Deal found 9/7฿7,790
Thu 18/919:55BKK - GMP
2 stops11h 40mMultiple Airlines
Sat 20/907:00GMP - BKK
2 stops13h 05mMultiple Airlines
Deal found 11/7฿9,965
Fri 22/819:35BKK - GMP
1 stop15h 30mAir China
Sun 31/814:25GMP - BKK
1 stop11h 45mAir China
Deal found 10/7฿10,809
Mon 1/901:10DMK - GMP
1 stop9h 50mMultiple Airlines
Tue 9/914:00GMP - DMK
1 stop13h 30mMultiple Airlines
Deal found 11/7฿11,068
Mon 8/921:55BKK - GMP
1 stop11h 05mChina Eastern
Fri 12/912:00GMP - BKK
1 stop10h 55mChina Eastern
Deal found 10/7฿12,659
Thu 21/801:10BKK - GMP
1 stop29h 10mJeju Air
Sun 31/819:40GMP - BKK
1 stop30h 30mJeju Air
Deal found 11/7฿12,854

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 12 July 2025.
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

Sun 31/8

02:45-10:20

Nonstop5h 35m

Incheon Intl

Fri 19/9

11:35-15:45

Nonstop6h 10m

฿5,778

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Thu 21/8

00:05-07:40

Nonstop5h 35m

Incheon Intl

Mon 25/8

11:05-17:05

1 stop8h 00m

฿6,135

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Thu 21/8

00:05-07:40

Nonstop5h 35m

Incheon Intl

Sun 31/8

18:00-22:35

Nonstop6h 35m

฿6,459

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Mon 8/9

10:30-06:15

1 stop17h 45m

Incheon Intl

Fri 12/9

11:35-15:45

Nonstop6h 10m

฿6,979

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Wed 23/7

02:25-22:40

1 stop18h 15m

Incheon Intl

Tue 29/7

23:40-01:25

1 stop27h 45m

฿7,563

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 1/9

21:05-06:40

1 stop7h 35m

Incheon Intl

Sat 11/10

18:05-10:50

1 stop18h 45m

฿7,725

BangkokSeoul

BKK - GMP

BKKGMP

Bangkok Suvarnabhumi

Thu 18/9

19:55-09:35

2 stops11h 40m

Seoul Gimpo Intl

Sat 20/9

07:00-18:05

2 stops13h 05m

฿9,965

BangkokSeoul

BKK - GMP

BKKGMP

Bangkok Suvarnabhumi

Fri 22/8

19:35-13:05

1 stop15h 30m

Seoul Gimpo Intl

Sun 31/8

14:25-00:10

1 stop11h 45m

฿10,809

BangkokSeoul

DMK - GMP

DMKGMP

Bangkok Don Mueang Intl

Mon 1/9

01:10-13:00

1 stop9h 50m

Seoul Gimpo Intl

Tue 9/9

14:00-01:30

1 stop13h 30m

฿11,068

BangkokSeoul

BKK - GMP

BKKGMP

Bangkok Suvarnabhumi

Thu 18/9

21:55-11:00

1 stop11h 05m

Seoul Gimpo Intl

Sat 20/9

12:00-20:55

1 stop10h 55m

฿11,912

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 31 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 11 July 2025.

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 72 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 8 hours 5 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 (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 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 ฿180
Thai Airways
Thai Airways
From ฿332
Air Busan
Air Busan
From ฿240
T'way Air
T'way Air
From ฿182

What are the cheapest airlines that fly to Seoul?

The cheapest airlines flying from Bangkok to Seoul are Vietnam Airlines, Eastar Jet and Jin 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 12 July 2025.
Check out reviews from past customers who have flown ไห่หนานแอร์ไลน์, AIR PREMIA, andVietnam Airlines 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.
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Food

8.6

Boarding

8.6

Crew

8.9

Comfort

8.1

Overall

8.2

Entertainment

7.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Food

8.6

Boarding

8.6

Crew

8.9

Comfort

8.1

Overall

8.2

Entertainment

7.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
AIR PREMIA
8.2
Very Good
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Food

8.6

Boarding

8.6

Crew

8.9

Comfort

8.1

Overall

8.2

Entertainment

7.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Vietnam Airlines
7.5
Good
195 reviews
ไห่หนานแอร์ไลน์
8.2
Very Good
41 reviews
Check prices

Food

8.6

Boarding

8.6

Crew

8.9

Comfort

8.1

Overall

8.2

Entertainment

7.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.

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?

    Incheon Intl is currently the cheapest airport to fly to in Seoul. One-way flights to Incheon Intl typically cost ฿2,402, while return flights cost around ฿2,358.

  • How much is a return flight to Seoul?

    A return flight to Seoul will typically cost around ฿73, however they can be found for as little as ฿73.

  • 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 15 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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