Find flights
Deals
When to book
FAQs

Cheap flights from Chiang Mai to Ko Samui from C$ 285

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 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — USM
3 Sep — 10 Sep1
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 4 August 2026.

Wed 16/93:45 p.m. -
1 stop5h 05m
Wed 23/98:55 a.m. -
Nonstop1h 45m
Deal found 2/8C$ 372
Wed 7/101:55 p.m. -
1 stop4h 35m
Sun 11/107:50 a.m. -
1 stop5h 50m
Deal found 3/8C$ 391
Tue 1/94:20 p.m. -
2 stops16h 05m
Tue 8/98:55 a.m. -
Nonstop1h 45m
Deal found 3/8C$ 398
Thu 3/98:00 p.m. -
1 stop11h 30m
Tue 15/98:55 a.m. -
Nonstop1h 45m
Deal found 1/8C$ 406
Mon 7/911:55 a.m. -
1 stop19h 15m
Fri 11/98:55 a.m. -
Nonstop1h 45m
Deal found 31/7C$ 426
Fri 18/910:55 a.m. -
1 stop6h 00m
Tue 22/98:55 a.m. -
Nonstop1h 45m
Deal found 4/8C$ 430
Wed 2/98:00 p.m. -
1 stop11h 10m
Wed 16/98:55 a.m. -
Nonstop1h 45m
Deal found 1/8C$ 432
Tue 1/98:00 p.m. -
1 stop11h 30m
Fri 18/98:55 a.m. -
Nonstop1h 45m
Deal found 1/8C$ 440

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 4 August 2026.

Round-trip from

C$ 372

One-way from

C$ 285

Popular in

December

Cheapest in

June

Average price

C$ 690
Bangkok Airways
  • Bangkok Airways
  • 16/9-23/9
  • 1 total stop
  • 6h 50m total
  • Chiang Mai to Ko Samui
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 20/8
  • 1 total stop
  • 12h 15m total
  • Chiang Mai to Ko Samui
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 128 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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 4 August 2026.
Use the filters below to find and compare flights from Chiang Mai to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 7/10

1:55 p.m.-6:30 p.m.

1 stop4h 35m

Ko Samui

Sun 11/10

7:50 a.m.-1:40 p.m.

1 stop5h 50m

C$ 391

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 16/9

3:45 p.m.-8:50 p.m.

1 stop5h 05m

Ko Samui

Wed 23/9

7:50 a.m.-1:50 p.m.

1 stop6h 00m

C$ 405

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 3/9

8:00 p.m.-7:30 a.m.

1 stop11h 30m

Ko Samui

Tue 15/9

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 406

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 13/1

12:10 p.m.-5:00 p.m.

1 stop4h 50m

Ko Samui

Wed 27/1

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

Nonstop1h 50m

C$ 420

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 7/9

11:55 a.m.-7:10 a.m.

1 stop19h 15m

Ko Samui

Sat 12/9

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 426

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 7/9

10:10 a.m.-7:10 a.m.

1 stop21h 00m

Ko Samui

Mon 14/9

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 426

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 29/8

8:00 p.m.-7:35 a.m.

1 stop11h 35m

Ko Samui

Fri 18/9

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 453

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 25/8

8:00 p.m.-7:00 a.m.

1 stop11h 00m

Ko Samui

Thu 10/9

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 453
Quickest round-trip

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 18/9

6:35 a.m.-11:05 a.m.

1 stop4h 30m

Ko Samui

Mon 21/9

8:55 a.m.-10:40 a.m.

Nonstop1h 45m

C$ 462
Cheapest one-way

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 18/8

8:00 p.m.-7:00 a.m.

1 stop11h 00m

C$ 318

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

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

Currently, June is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of C$ 353). Flying from Chiang Mai to Ko Samui in August is currently the most expensive (average of C$ 890). 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 4 August 2026.

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?

Airfare is below average for this route at the moment.

Chiang Mai to Ko Samui flights typically cost between C$ 607 and C$ 890 in September.
The cheapest round-trip price found within the last 5 days was C$ 372 on Multiple Airlines (16 Sep-23 Sep).

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 11h 30m. 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 (77%), EVA Air (75%) or Thai Airways (75%) when booking your flight. These represent the most reliable airlines when flying from Chiang Mai to Ko Samui.

  • 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, June is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of C$ 353). Flying from Chiang Mai to Ko Samui in August is currently the most expensive (average of C$ 890). 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.