Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Chiang Mai to Ko Samui from ฿4,009

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 21/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — USM
17 Jun — 24 Jun1
1 adult

Cheap flight deals from Chiang Mai to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) 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 12 June 2025.

Round-trip from

฿6,030

One-way from

฿4,009

Popular in

August

Cheapest in

May

Average price

฿10,757

Good one-way deal

฿6,775 or less
Bangkok Airways
  • Bangkok Airways
  • 7/10-21/10
  • 1 total stop
  • 22h 50m total
  • Chiang Mai to Ko Samui
Bangkok Airways
  • Bangkok Airways
  • 21/11
  • 1 total stop
  • 11h 25m total
  • Chiang Mai to Ko Samui
Highest demand for flights based on searches. 0% potential increase in price (฿3,411 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (฿4,086 potential savings vs. average return price).
Average for round-trip flights in June 2025
Price to beat on a one-way flight from Chiang Mai to Ko Samui.

Find flight deals from Chiang Mai to Ko Samui

Cheapest flights from Chiang Mai to Ko Samui
Explore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Tue 7/1020:00CNX - USM
1 stop21h 05mBangkok Airways
Tue 21/1008:45USM - CNX
1 stop5h 00mBangkok Airways
Deal found 9/6฿6,030
Tue 11/1110:10CNX - USM
1 stop7h 25mMultiple Airlines
Tue 11/1120:30USM - CNX
1 stop12h 30mMultiple Airlines
Deal found 11/6฿7,041

Cheapflights Fare Finder

Customise your flight search to find flights from Chiang Mai to Ko Samui 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 12 June 2025.
Use the filters below to find and compare flights from Chiang Mai to Ko Samui that are best for you.

Fly from

Chiang Mai

Fly to

Ko Samui

Route

Depart

Return

Price

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 7/10

20:00-17:05

1 stop21h 05m

Ko Samui

Tue 21/10

08:55-10:40

Nonstop1h 45m

฿6,030

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 11/11

10:10-17:35

1 stop7h 25m

Ko Samui

Tue 11/11

20:30-09:00

1 stop12h 30m

฿7,041

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 25/7

12:35-07:35

2 stops19h 00m

Ko Samui

Fri 1/8

17:50-13:40

2 stops19h 50m

฿33,542

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 21/11

19:45-07:10

1 stop11h 25m

฿4,009

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 1/7

22:20-07:20

1 stop9h 00m

฿4,075

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 12/9

12:35-07:20

2 stops18h 45m

฿9,062

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Best time to book a flight from Chiang Mai to Ko Samui

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

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

Use this chart to determine the optimal time to book a return flight from Chiang Mai to Ko Samui. Price data was last updated on 9 June 2025.

To ensure you get the cheapest price possible for a flight from Chiang Mai to Ko Samui, you should look to book at least 40 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, May is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of ฿173). Flying from Chiang Mai to Ko Samui in February is currently the most expensive (average of ฿258). 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 CNX to USM?

Find hourly flight availability from Chiang Mai 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 12 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Ko Samui as you normally would.

Weekly flight availability from Chiang Mai to Ko Samui

Explore weekly flight availability from Chiang Mai to Ko Samui. 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 12 June 2025.

The most flights from CNX to USM are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Ko Samui by month

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

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

Temperature in Ko Samui by month

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

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

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 12 June 2025.

Boarding

7.9

Overall

8.0

Entertainment

6.2

Food

7.2

Comfort

7.8

Crew

8.5

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.

Boarding

7.9

Overall

8.0

Entertainment

6.2

Food

7.2

Comfort

7.8

Crew

8.5

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.

Boarding

7.9

Overall

8.0

Entertainment

6.2

Food

7.2

Comfort

7.8

Crew

8.5

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 Chiang Mai 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 airports do I use to fly from Chiang Mai to Ko Samui?

    If you book a flight from Chiang Mai to Ko Samui, you will be flying from Chiang Mai to Ko Samui. Flights to Ko Samui (USM) from Chiang Mai (CNX) take 1h 45m for a nonstop flight. There are 7 flights from Chiang Mai to Ko Samui per day from 1 airline.

  • How popular is this Chiang Mai to Ko Samui flight route?

  • What are the cheapest airlines flying from Chiang Mai to Ko Samui round-trip?

    Our cheapest airline available from Chiang Mai to Ko Samui is Bangkok Airways. Our recent data shows that you can find tickets from as low as ฿6,030 on this airline. An additional option worth looking into is Malaysia Airlines, starting at ฿22,035. You may be able to fly from Chiang Mai to Ko Samui for 48% less than the average price by searching for these airlines.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chiang Mai to Ko Samui on time: เอทิฮัดแอร์เวย์ (100%), Bangkok Airways (98%), EVA Air (95%).

  • What are the cheapest flights from Chiang Mai to Ko Samui?

    The cheapest flight price from Chiang Mai to Ko Samui is ฿6,775. On average you can expect to pay ฿8,138. The most popular route, (Chiang Mai - Ko Samui), can usually be booked for ฿6,030.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chiang Mai 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.

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

    Currently, May is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of ฿173). Flying from Chiang Mai to Ko Samui in February is currently the most expensive (average of ฿258). 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

Travelling to a place near Chiang Mai?

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

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.

Fly from Chiang Mai to Ko Samui on these airlines

Choose from the following airlines for your flight from Chiang Mai to Ko Samui. Flights are based on user searches made on Cheapflights and were last updated on 12 June 2025.

Top airline flying from Chiang Mai to Ko Samui

Discover the top airline that operate flights from Chiang Mai 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 17,341 searches. Data last updated 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿5,432Average฿9,887FlexibilityNo 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 Chiang Mai to Ko Samui?

Cheapflights helps you search for flights from Chiang Mai to Ko Samui 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 from Chiang Mai to Ko Samui?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chiang Mai to Ko Samui.

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

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

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

Of course! You can now track prices for flights from Chiang Mai to Ko Samui 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 above 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.