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Ko Samui

Cheap flights from Don Mueang Intl (DMK) to Ko Samui (USM)

DMK — USM
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Find cheap flights from Don Mueang Intl to Ko Samui with Cheapflights

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Cheapflights Tip: The best prices from Bangkok Don Mueang Intl to Ko Samui are usually found in June or November, booked 46 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Don Mueang Intl to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Don Mueang Intl (DMK) to Ko Samui (USM). 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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

June

Average price

$241

Good round-trip deal

$229 or less

Good one-way deal

$119 or less
Provider with most accurate pricing for Bangkok Don Mueang Intl-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Bangkok Don Mueang Intl-Ko Samui flights.
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Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Bangkok Don Mueang Intl to Ko Samui.
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Price to beat on a one-way flight from Bangkok Don Mueang Intl to Ko Samui.
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Compare providers for flights from Don Mueang Intl to Ko Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Don Mueang Intl to Ko Samui in September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bangkok Don Mueang Intl Airport-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bangkok Don Mueang Intl Airport-Ko Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bangkok Don Mueang Intl Airport-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bangkok Don Mueang Intl Airport-Ko Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bangkok Don Mueang Intl Airport-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Don Mueang Intl to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Don Mueang Intl with our price prediction graph.
Estimated round-trip 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 Bangkok Don Mueang Intl Airport to Ko Samui

How far ahead should I book a flight from Bangkok Don Mueang Intl Airport to Ko Samui?

Use this chart to determine the optimal time to book a round-trip flight from Don Mueang Intl to Ko Samui. Price data was last updated on September 19, 2025.

The best time to book flights from Bangkok Don Mueang Intl Airport to Ko Samui is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Find hourly flight availability from Don Mueang Intl to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 25, 2025.

It’s optimal to fly from Bangkok Don Mueang Intl Airport to Ko Samui in the afternoon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Bangkok Don Mueang Intl Airport to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Don Mueang Intl to Ko Samui. Price data was last updated on September 21, 2025.

Travelers seeking maximum savings on their Bangkok Don Mueang Intl Airport to Ko Samui flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. 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 Ko Samui. Reviews last updated September 25, 2025.
Read reviews from past customers who have flown Bangkok Airways from Bangkok Don Mueang Intl Airport to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very good
113 reviews

Comfort

7.9

Entertainment

6.2

Boarding

8.0

Overall

8.0

Crew

8.5

Food

7.2

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very good
113 reviews
Bangkok Airways
8.0
Very good
113 reviews

Comfort

7.9

Entertainment

6.2

Boarding

8.0

Overall

8.0

Crew

8.5

Food

7.2

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

Related info for your journey

Find useful and relevant information for your journey from Don Mueang Intl to Ko Samui. 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 into for flights to Ko Samui from Bangkok Don Mueang Intl?

    For a flight from Bangkok Don Mueang Intl to Ko Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city. Ko Samui is the only Ko Samui airport and it handles 3 inbound flights from Bangkok Don Mueang Intl per day. 1 airline has flights to Ko Samui from Bangkok Don Mueang Intl on a regular basis.

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

    According to our current data, Bangkok Airways ($149), offers the cheapest pricing from Bangkok Don Mueang Intl Airport to Ko Samui. Users have found that Bangkok Airways is 44% cheaper than the other options available to this destination.

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

    Yes. In addition to deals on Don Mueang Intl to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Don Mueang Intl to Ko Samui?

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

  • Can I find deals for business class flights from Don Mueang Intl to Ko Samui?

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

See more FAQs

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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Top airline flying from Don Mueang Intl to Ko Samui

Discover the top airline that operate flights from Don Mueang Intl to Ko Samui. 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 2,558,603 searches. Data last updated September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest$149Average$299FlexibilityNo cancel feeOn-time74%

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