Find flights
Deals
When to book
FAQs

Cheap flights from Chiang Mai to Ko Samui from C$ 257

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — USM
13 Jan — 20 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Ko Samui

Enter your travel dates to find the best prices.

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 14 December 2025.

Tue 16/1210:25 p.m.CNX - USM
1 stop9h 40mMultiple Airlines
Thu 18/127:55 a.m.USM - CNX
1 stop8h 50mMultiple Airlines
Deal found 14/12C$ 654
Tue 16/1210:10 a.m.CNX - USM
1 stop21h 55mBangkok Airways
Thu 1/18:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 12/12C$ 808
Tue 16/1210:10 a.m.CNX - USM
1 stop21h 55mBangkok Airways
Sat 27/125:05 p.m.USM - CNX
1 stop3h 55mBangkok Airways
Deal found 12/12C$ 817
Mon 15/1210:10 a.m.CNX - USM
1 stop21h 55mBangkok Airways
Thu 1/18:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 12/12C$ 819
Mon 15/1212:10 p.m.CNX - USM
1 stop19h 55mBangkok Airways
Sat 27/125:05 p.m.USM - CNX
1 stop3h 55mBangkok Airways
Deal found 12/12C$ 828
Sat 20/129:40 p.m.CNX - USM
1 stop10h 10mBangkok Airways
Thu 1/18:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 12/12C$ 841
Mon 15/1212:10 p.m.CNX - USM
1 stop19h 55mBangkok Airways
Sun 28/127:15 a.m.USM - CNX
1 stop13h 45mBangkok Airways
Deal found 12/12C$ 843
Sun 14/1210:10 a.m.CNX - USM
1 stop21h 55mBangkok Airways
Thu 1/18:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 12/12C$ 845
Sat 20/129:40 p.m.CNX - USM
1 stop10h 10mBangkok Airways
Sat 27/125:05 p.m.USM - CNX
1 stop3h 55mBangkok Airways
Deal found 12/12C$ 848
Sun 14/1210:10 a.m.CNX - USM
1 stop21h 55mBangkok Airways
Sat 27/125:05 p.m.USM - CNX
1 stop3h 55mBangkok Airways
Deal found 12/12C$ 852
Tue 16/1210:10 a.m.CNX - USM
1 stop21h 55mBangkok Airways
Tue 30/128:30 p.m.USM - CNX
1 stop12h 55mBangkok Airways
Deal found 12/12C$ 858
Fri 19/1210:10 a.m.CNX - USM
1 stop7h 40mBangkok Airways
Sun 28/127:15 a.m.USM - CNX
1 stop13h 45mBangkok Airways
Deal found 12/12C$ 863

Find 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 14 December 2025.

Round-trip from

C$ 498

One-way from

C$ 257

Popular in

December

Cheapest in

September

Average price

C$ 799

Good one-way deal

C$ 353 or less
27/1-31/1
  • 27/1-31/1
  • 2 total stops
  • 16h 45m total
  • Chiang Mai to Ko Samui
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 9/4
  • 1 total stop
  • 8h 35m total
  • Chiang Mai to Ko Samui
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a one-way flight from Chiang Mai to Ko Samui.
Search Deals

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 14 December 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 27/1

10:25 p.m.-7:45 a.m.

1 stop9h 20m

Ko Samui

Sat 31/1

8:15 a.m.-3:40 p.m.

1 stop7h 25m

C$ 498

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 26/1

9:40 p.m.-8:05 a.m.

1 stop10h 25m

Ko Samui

Wed 28/1

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 509

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 12/2

9:40 p.m.-8:05 a.m.

1 stop10h 25m

Ko Samui

Mon 16/2

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 523

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 12/2

9:40 p.m.-8:05 a.m.

1 stop10h 25m

Ko Samui

Tue 17/2

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 523

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 12/2

9:40 p.m.-7:45 a.m.

1 stop10h 05m

Ko Samui

Sun 15/2

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 523

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 11/2

9:40 p.m.-9:20 a.m.

1 stop11h 40m

Ko Samui

Tue 17/2

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 532

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 13/2

9:40 p.m.-7:45 a.m.

1 stop10h 05m

Ko Samui

Tue 17/2

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 552

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 13/2

9:40 p.m.-10:35 a.m.

1 stop12h 55m

Ko Samui

Mon 16/2

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 552

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 27/1

12:10 p.m.-5:50 p.m.

1 stop5h 40m

Ko Samui

Wed 28/1

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 555

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 6/1

9:40 p.m.-7:35 a.m.

1 stop9h 55m

Ko Samui

Sat 24/1

8:50 a.m.-10:40 a.m.

Nonstop1h 50m

C$ 555

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/12

Showing 1-10 of 21 results
1
2
3

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 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 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 round-trip flight from Chiang Mai to Ko Samui. Price data was last updated on 12 December 2025.

The best time to book flights from Chiang Mai to Ko Samui is 34 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 month to book a flight from Chiang Mai to Ko Samui?

Currently, April is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of C$ 123). Flying from Chiang Mai to Ko Samui in January is currently the most expensive (average of C$ 256). 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 14 December 2025.

When flying from Chiang Mai to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Chiang Mai to Ko Samui?

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.

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

    This flight path from Chiang Mai to Ko Samui was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Chiang Mai to Ko Samui?

    There are many flights that can get you from Chiang Mai to Ko Samui in 10h 25m. Fly via Bangkok Airways to get the fastest option. Chiang Mai and Ko Samui are separated by a distance of 1032 km.

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

    Consider Bangkok Airways (96%), Qatar Airways (93%) or EVA Air (92%) when booking your flight. These represent the most reliable airlines when flying from Chiang Mai to Ko Samui.

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

    On average you can expect to pay C$ 390 for a flight from Chiang Mai to Ko Samui. The cheapest flight overall is C$ 350 while the most popular route, (Chiang Mai - Ko Samui) is currently priced at C$ 679.

  • 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 vacation 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, April is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of C$ 123). Flying from Chiang Mai to Ko Samui in January is currently the most expensive (average of C$ 256). 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 Ko Samui?

Book flights to Ko Samui 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 with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

When you search for this flight from Chiang Mai to Ko Samui, 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 Chiang Mai to Ko Samui?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chiang Mai to Ko Samui for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Chiang Mai to Ko Samui flexibly with Cheapflights today.

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.