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Cheap flights from Chiang Mai to Ko Samui from C$ 185

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — USM
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

C$ 294

One-way from

C$ 185

Popular in

August

Cheapest in

May

Average price

C$ 435

Good one-way deal

C$ 348 or less
Bangkok Airways
  • Bangkok Airways
  • 12/1-27/1
  • 1 total stop
  • 10h 10m total
  • Chiang Mai to Ko Samui
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Bangkok Airways
  • Bangkok Airways
  • 13/11
  • 1 total stop
  • 11h 25m total
  • Chiang Mai to Ko Samui
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 70 potential increase over avg. RT price).
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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 September 2025
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Price to beat on a one-way flight from Chiang Mai to Ko Samui.
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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 16 September 2025.

Thu 2/1011:55 a.m.CNX - USM
1 stop5h 10mBangkok Airways
Mon 6/107:00 a.m.USM - CNX
1 stop4h 15mBangkok Airways
Deal found 16/9C$ 408
Sun 12/108:00 p.m.CNX - USM
1 stop11h 20mBangkok Airways
Thu 16/108:55 a.m.USM - CNX
Nonstop1h 45mBangkok Airways
Deal found 16/9C$ 409
Tue 28/107:45 p.m.CNX - USM
1 stop12h 00mBangkok Airways
Thu 6/117:00 a.m.USM - CNX
1 stop25h 35mBangkok Airways
Deal found 16/9C$ 427
Tue 28/107:45 p.m.CNX - USM
1 stop11h 25mBangkok Airways
Fri 7/118:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 16/9C$ 446
Mon 27/107:45 p.m.CNX - USM
1 stop12h 25mBangkok Airways
Thu 6/117:00 a.m.USM - CNX
1 stop25h 35mBangkok Airways
Deal found 16/9C$ 459
Fri 24/102:35 p.m.CNX - USM
1 stop5h 55mBangkok Airways
Fri 31/108:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 16/9C$ 460
Fri 31/1010:10 a.m.CNX - USM
1 stop21h 00mBangkok Airways
Thu 6/117:00 a.m.USM - CNX
1 stop25h 35mBangkok Airways
Deal found 16/9C$ 464
Sat 1/117:45 p.m.CNX - USM
1 stop12h 00mBangkok Airways
Thu 6/117:00 a.m.USM - CNX
1 stop25h 35mBangkok Airways
Deal found 16/9C$ 472
Mon 27/107:45 p.m.CNX - USM
1 stop12h 00mBangkok Airways
Sat 8/118:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 16/9C$ 479
Tue 9/1210:10 a.m.CNX - USM
1 stop11h 10mBangkok Airways
Thu 11/128:50 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 15/9C$ 485
Tue 28/107:45 p.m.CNX - USM
1 stop12h 00mBangkok Airways
Wed 5/117:55 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 16/9C$ 499
Thu 30/1012:10 p.m.CNX - USM
1 stop4h 50mBangkok Airways
Wed 5/117:55 a.m.USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 16/9C$ 500

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 16 September 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

Fri 13/3

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

1 stop5h 40m

Ko Samui

Thu 19/3

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

Nonstop1h 50m

C$ 359

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 11/2

9:40 p.m.-7:10 a.m.

1 stop9h 30m

Ko Samui

Mon 16/2

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

Nonstop1h 50m

C$ 392

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 12/2

9:40 p.m.-7:10 a.m.

1 stop9h 30m

Ko Samui

Mon 16/2

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

Nonstop1h 50m

C$ 392

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 10/2

9:40 p.m.-7:10 a.m.

1 stop9h 30m

Ko Samui

Sun 15/2

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

Nonstop1h 50m

C$ 392

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 11/2

9:40 p.m.-7:10 a.m.

1 stop9h 30m

Ko Samui

Sun 15/2

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

Nonstop1h 50m

C$ 392

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 11/2

9:40 p.m.-7:10 a.m.

1 stop9h 30m

Ko Samui

Tue 17/2

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

Nonstop1h 50m

C$ 392

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 12/2

9:40 p.m.-7:10 a.m.

1 stop9h 30m

Ko Samui

Sun 15/2

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

Nonstop1h 50m

C$ 392

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Tue 10/2

9:40 p.m.-7:10 a.m.

1 stop9h 30m

Ko Samui

Tue 17/2

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

Nonstop1h 50m

C$ 392

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Thu 2/10

11:55 a.m.-5:05 p.m.

1 stop5h 10m

Ko Samui

Mon 6/10

7:00 a.m.-11:15 a.m.

1 stop4h 15m

C$ 408

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Sun 12/10

8:00 p.m.-7:20 a.m.

1 stop11h 20m

Ko Samui

Thu 16/10

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

Nonstop1h 45m

C$ 409

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

Showing 1-10 of 18 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 12 September 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 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 16 September 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 5h 40m. 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 (97%), EVA Air (93%) or Qatar Airways (93%) 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$ 396 for a flight from Chiang Mai to Ko Samui. The cheapest flight overall is C$ 124 while the most popular route, (Chiang Mai - Ko Samui) is currently priced at C$ 681.

  • 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.

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 Tao
Ko Pha Ngan

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