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Cheap flights from Ko Samui to Bangkok from ฿4,503

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
USM — BKK
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Ko Samui to Bangkok are usually found in February or September, booked 24 days in advance, depart on a Monday or Friday and return on a Friday

Cheap flight deals from Ko Samui to Bangkok

Enter your travel dates to find the best prices.

Cheapest flights from Ko Samui to Bangkok
Explore the most affordable flight options available from Ko Samui to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Thu 23/407:50
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Sun 26/406:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 20/3฿4,503
Thu 14/507:50
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Sun 17/506:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 22/3฿4,536
Mon 18/507:50
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Fri 22/506:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 20/3฿4,601
Thu 14/507:50
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Fri 15/506:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 22/3฿4,634
Mon 18/506:00
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Wed 20/507:10
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 21/3฿4,897
Fri 3/420:35
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Sun 5/406:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 21/3฿4,930
Thu 21/506:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Mon 25/518:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Deal found 22/3฿5,029
Fri 19/606:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Tue 23/609:05
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Deal found 21/3฿5,061
Thu 7/506:00
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Sun 10/506:05
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 18/3฿5,357
Thu 14/506:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Sun 17/518:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Deal found 22/3฿5,423
Wed 17/606:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Sun 21/609:05
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Deal found 19/3฿5,554
Sat 20/607:50
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Sat 20/616:00
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 20/3฿5,784

Find flight deals from Ko Samui to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 March 2026.

Round-trip from

฿4,503

Popular in

March

Cheapest in

February

Average price

฿10,221
Bangkok Airways
  • Bangkok Airways
  • 23/4-26/4
  • Nonstop
  • 2h 20m total
  • Ko Samui to Bangkok
Search Deals
High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease (฿6,259 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Ko Samui to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from Ko Samui to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Thu 21/5

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Mon 25/5

06:05-07:10

Nonstop1h 05m

฿4,536

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Tue 19/5

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Sat 23/5

06:05-07:10

Nonstop1h 05m

฿4,568

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Wed 13/5

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 17/5

06:05-07:10

Nonstop1h 05m

฿4,634

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Thu 23/4

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 26/4

06:05-07:10

Nonstop1h 05m

฿4,634

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Tue 16/6

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Sat 20/6

06:05-07:10

Nonstop1h 05m

฿4,634

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Mon 11/5

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Wed 13/5

06:05-07:10

Nonstop1h 05m

฿4,634

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Thu 14/5

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Fri 15/5

06:05-07:10

Nonstop1h 05m

฿4,634

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Thu 14/5

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 24/5

06:05-07:10

Nonstop1h 05m

฿4,634

Ko SamuiBangkok

USM - DMK

USMDMK

Ko Samui

Thu 21/5

06:55-08:25

Nonstop1h 30m

Bangkok Don Mueang Intl

Mon 25/5

18:15-19:45

Nonstop1h 30m

฿5,029

Ko SamuiBangkok

USM - DMK

USMDMK

Ko Samui

Wed 17/6

06:55-08:25

Nonstop1h 30m

Bangkok Don Mueang Intl

Sun 21/6

09:05-10:35

Nonstop1h 30m

฿5,554

Flights are sorted by cheapest return flights first.

Deals found on 22/3

Showing 1-10 of 38 resultsSorted by cheapest first
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Best time to book a flight from Ko Samui to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok from Ko Samui 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 from Ko Samui to Bangkok

How far ahead should I book a flight from Ko Samui to Bangkok?

Use this chart to determine the optimal time to book a return flight from Ko Samui to Bangkok. Price data was last updated on 13 March 2026.

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ko Samui to Bangkok. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Ko Samui to Bangkok?

Currently, July is the cheapest month in which you can book a flight from Ko Samui to Bangkok (average of ฿592). Flying from Ko Samui to Bangkok in August is currently the most expensive (average of ฿1,808). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from USM to BKK?

Find hourly flight availability from Ko Samui to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 March 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 34% on flights from Ko Samui to Bangkok by exploring options for tickets in the morning.

Weekly flight availability from Ko Samui to Bangkok

Explore weekly flight availability from Ko Samui to Bangkok. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 22 March 2026.

The most flights from USM to TH1 are scheduled on a Sunday (344 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (309 on average).

How much does it cost for a return flight from Ko Samui to Bangkok?

How often are flights from Ko Samui to Bangkok delayed?

About 13% of weekly flights between Ko Samui and Bangkok have experienced delays in the past year, with the average delay time being 95 minutes.

What is the most punctual flight time for Ko Samui to Bangkok flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ko Samui to Bangkok flights?

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 13% of flights being delayed.

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated 22 March 2026.
Get a feel of what it's like to fly with Bangkok Airways from Ko Samui to Bangkok by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Comfort

8.0

Boarding

8.1

Overall

8.1

Food

7.3

Entertainment

6.3

Crew

8.6

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Bangkok Airways
8.1
Very Good
128 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Comfort

8.0

Boarding

8.1

Overall

8.1

Food

7.3

Entertainment

6.3

Crew

8.6

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to Bangkok. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ko Samui to Bangkok?

    For a flight from Ko Samui to Bangkok, you will be flying from Ko Samui. Ko Samui (USM) is just 3.3 km from the centre of the city. Ko Samui is the only Ko Samui airport and it handles 325 outbound flights to Bangkok per day. 1 airline has flights to Bangkok from Ko Samui on a regular basis.

  • How long is the flight from Ko Samui to Bangkok?

    Airlines like Bangkok Airways fly from Ko Samui to Bangkok in about 1h 15m. The time it takes to get you to your destination is usually consistent. The distance between Ko Samui and Bangkok is about 467 km. All flights are typically direct.

  • What is the cheapest airline to fly from Ko Samui to Bangkok round-trip?

    According to our current data, Bangkok Airways (฿4,330), offers the cheapest pricing from Ko Samui to Bangkok. Bangkok Airways is currently priced 46% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ko Samui to Bangkok one-way?

    One-way options have recently been found by users for as low as ฿2,758 on Bangkok Airways. Other airlines that offer cheap prices include Thai Airways from ฿6,596 and เตอร์กิชแอร์ไลน์ from ฿6,963 one-way.

  • What are the most reliable airlines from Ko Samui to Bangkok?

    The top 3 most reliable airlines when flying from Ko Samui to Bangkok are สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (92%), แอร์ฟร้านซ์ (90%) and Garuda Indonesia (85%).

  • What are the cheapest flights from Ko Samui to Bangkok?

    The cheapest flight price from Ko Samui to Bangkok is ฿3,817. On average you can expect to pay ฿28,614. The most popular route, (Ko Samui - Bangkok Suvarnabhumi), can usually be booked for ฿4,536.

  • Can I find deals for flights from Ko Samui to Bangkok that include hotel bookings?

    Yes. In addition to deals on Ko Samui to Bangkok flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ko Samui to Bangkok?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Bangkok.

  • Can I find deals for business class flights from Ko Samui to Bangkok?

    Yes. Cheapflights offers flight deals from Ko Samui to Bangkok by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ko Samui to Bangkok?

    Currently, July is the cheapest month in which you can book a flight from Ko Samui to Bangkok (average of ฿592). Flying from Ko Samui to Bangkok in August is currently the most expensive (average of ฿1,808). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ko Samui to Bangkok

See prices for flight routes from nearby airports that may be better suited for you.
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Phuket City to Ko Samui flights
Chiang Mai to Ko Samui flights

Top airline flying from Ko Samui to Bangkok

Discover the top airline that operate flights from Ko Samui to Bangkok. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿4,330Average฿10,025FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

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 from Ko Samui to Bangkok?

When you search for this flight from Ko Samui to Bangkok, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Bangkok?

Millions of users choose and trust Cheapflights to book the best flight deals from Ko Samui to Bangkok for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ko Samui to Bangkok with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ko Samui to Bangkok, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ko Samui to Bangkok become cheaper?

Yes, Cheapflights offers price alerts on Ko Samui to Bangkok flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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