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Cheap flights from Chiang Mai to Ko Samui from C$ 236

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 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — USM
15 Dec — 22 Dec1
1 adult
1 adult, Economy, 0 bags

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 15 November 2025.

Round-trip from

C$ 401

One-way from

C$ 236

Popular in

August

Cheapest in

September

Average price

C$ 505
Bangkok Airways
  • Bangkok Airways
  • 17/1-29/1
  • 1 total stop
  • 11h 55m total
  • Chiang Mai to Ko Samui
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27/11
  • 27/11
  • 1 total stop
  • 9h 20m total
  • Chiang Mai to Ko Samui
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 15 November 2025.

Thu 20/1110:25 p.m.CNX - USM
1 stop9h 20mMultiple Airlines
Thu 27/118:15 a.m.USM - CNX
1 stop7h 25mMultiple Airlines
Deal found 15/11C$ 487
Sat 22/1110:25 p.m.CNX - USM
1 stop10h 15mMultiple Airlines
Sat 29/1111:10 a.m.USM - CNX
1 stop4h 30mMultiple Airlines
Deal found 15/11C$ 501
Mon 1/1210:25 p.m.CNX - USM
1 stop9h 20mMultiple Airlines
Mon 8/129:20 a.m.USM - CNX
1 stop6h 20mMultiple Airlines
Deal found 14/11C$ 532
Fri 19/129:40 p.m.CNX - USM
1 stop9h 50mBangkok Airways
Mon 22/128:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 14/11C$ 560
Tue 16/1210:25 p.m.CNX - USM
1 stop9h 45mMultiple Airlines
Tue 23/128:15 a.m.USM - CNX
1 stop7h 25mMultiple Airlines
Deal found 15/11C$ 567
Fri 12/1210:25 p.m.CNX - USM
1 stop9h 05mMultiple Airlines
Sun 14/127:55 a.m.USM - CNX
1 stop5h 40mMultiple Airlines
Deal found 14/11C$ 582
Fri 19/129:40 p.m.CNX - USM
1 stop9h 50mBangkok Airways
Sun 21/128:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 14/11C$ 586
Tue 2/127:45 p.m.CNX - USM
1 stop12h 00mBangkok Airways
Tue 9/128:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 14/11C$ 627
Tue 2/127:45 p.m.CNX - USM
1 stop12h 20mBangkok Airways
Mon 8/128:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 14/11C$ 654
Sun 30/1110:10 a.m.CNX - USM
1 stop6h 15mBangkok Airways
Tue 9/128:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 14/11C$ 658
Sun 30/1110:10 a.m.CNX - USM
1 stop6h 15mBangkok Airways
Mon 8/128:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 14/11C$ 686

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 15 November 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 10/3

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

1 stop8h 45m

Ko Samui

Wed 11/3

9:20 a.m.-3:40 p.m.

1 stop6h 20m

C$ 446

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 19/1

9:40 p.m.-7:30 a.m.

1 stop9h 50m

Ko Samui

Wed 21/1

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

Nonstop1h 50m

C$ 457

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 19/1

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

1 stop10h 25m

Ko Samui

Thu 22/1

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

Nonstop1h 50m

C$ 457

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sat 17/1

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

1 stop10h 05m

Ko Samui

Mon 19/1

7:55 a.m.-9:00 p.m.

1 stop13h 05m

C$ 526

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 1/12

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

1 stop9h 20m

Ko Samui

Mon 8/12

9:20 a.m.-3:40 p.m.

1 stop6h 20m

C$ 532

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 19/1

9:40 p.m.-7:30 a.m.

1 stop9h 50m

Ko Samui

Thu 5/2

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

Nonstop1h 50m

C$ 539

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 19/1

9:40 p.m.-7:30 a.m.

1 stop9h 50m

Ko Samui

Fri 6/2

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

Nonstop1h 50m

C$ 539

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 22/1

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

1 stop9h 55m

Ko Samui

Wed 4/2

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

Nonstop1h 50m

C$ 551

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Fri 19/12

9:40 p.m.-7:30 a.m.

1 stop9h 50m

Ko Samui

Mon 22/12

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

Nonstop1h 50m

C$ 560

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Mon 19/1

9:40 p.m.-7:30 a.m.

1 stop9h 50m

Ko Samui

Wed 4/2

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

Nonstop1h 50m

C$ 565

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/11

Showing 1-10 of 23 results
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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 14 November 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$ 125). Flying from Chiang Mai to Ko Samui in January is currently the most expensive (average of C$ 338). 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 15 November 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.

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 9h 50m. 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 EVA Air (93%), Thai Airways (93%) or Etihad Airways (93%) 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, April is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of C$ 125). Flying from Chiang Mai to Ko Samui in January is currently the most expensive (average of C$ 338). 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

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