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Cheap flights from Ko Samui to Chiang Mai from ฿3,456

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CNX
7 Sep — 14 Sep1
1 adult

Cheap flight deals from Ko Samui to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to Chiang Mai (CNX). 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 2 September 2025.

Round-trip from

฿7,105

One-way from

฿3,456

Popular in

January

Cheapest in

May

Average price

฿11,272

Good one-way deal

฿6,554 or less
Bangkok Airways
  • Bangkok Airways
  • 30/1-4/2
  • 1 total stop
  • 13h 15m total
  • Ko Samui to Chiang Mai
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Bangkok Airways
  • Bangkok Airways
  • 4/12
  • Nonstop
  • 1h 50m total
  • Ko Samui to Chiang Mai
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿40,321 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (฿15,036 potential savings vs. average return 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 Ko Samui to Chiang Mai.
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Find flight deals from Ko Samui to Chiang Mai

Cheapest flights from Ko Samui to Chiang Mai
Explore the most affordable flight options available from Ko Samui to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 September 2025.

Fri 17/1008:55USM - CNX
Nonstop1h 45mMultiple Airlines
Sun 19/1022:55CNX - USM
1 stop8h 25mMultiple Airlines
Deal found 1/9฿7,493
Thu 16/1008:55USM - CNX
Nonstop1h 45mMultiple Airlines
Thu 23/1022:20CNX - USM
1 stop9h 00mMultiple Airlines
Deal found 1/9฿8,139
Wed 15/1008:55USM - CNX
Nonstop1h 45mMultiple Airlines
Wed 22/1022:20CNX - USM
1 stop9h 00mMultiple Airlines
Deal found 31/8฿8,914

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ko Samui to Chiang Mai 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 2 September 2025.
Use the filters below to find and compare flights from Ko Samui to Chiang Mai that are best for you.

Fly from

Ko Samui

Fly to

Chiang Mai

Route

Depart

Return

Price

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 30/1

08:50-10:40

Nonstop1h 50m

Chiang Mai

Wed 4/2

19:45-07:10

1 stop11h 25m

฿7,105

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sun 8/2

08:50-10:40

Nonstop1h 50m

Chiang Mai

Wed 11/2

22:50-07:10

1 stop8h 20m

฿7,235

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 7/2

08:50-10:40

Nonstop1h 50m

Chiang Mai

Wed 11/2

22:50-07:10

1 stop8h 20m

฿7,235

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 17/10

08:55-10:40

Nonstop1h 45m

Chiang Mai

Sun 19/10

22:55-07:20

1 stop8h 25m

฿7,493

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 16/10

08:55-10:40

Nonstop1h 45m

Chiang Mai

Thu 23/10

22:20-07:20

1 stop9h 00m

฿8,139

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 4/12

08:50-10:40

Nonstop1h 50m

฿3,456

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 14/11

08:50-10:40

Nonstop1h 50m

฿3,520

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 25/12

08:50-10:40

Nonstop1h 50m

฿3,520

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sun 25/1

08:50-10:40

Nonstop1h 50m

฿3,553

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Mon 9/2

08:50-10:40

Nonstop1h 50m

฿3,585

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 14 results
1
2

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

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

What is the cheapest time of day to fly from USM to CNX?

Find hourly flight availability from Ko Samui to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 September 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to Chiang Mai. 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 Ko Samui to Chiang Mai flight route?

    Flights from Ko Samui to Chiang Mai have been viewed 1 times in the past calendar month.

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

    A quick flight from Ko Samui to Chiang Mai can take about 1h 50m. Bangkok Airways provides one of the quickest options available for as low as ฿7,105. The distance between Ko Samui and Chiang Mai is about 1032 km. Most flights are nonstop.

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

    The top 3 most reliable airlines when flying from Ko Samui to Chiang Mai are EVA Air (90%), Qatar Airways (90%) and Thai Airways (90%).

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

    Looking at all options, your cheapest flight can be booked for ฿6,554. While the most popular route (Ko Samui - Chiang Mai) can be booked for ฿7,105 on average our data indicates ฿6,704 when flying from Ko Samui to Chiang Mai.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ko Samui to Chiang Mai 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 Ko Samui to Chiang Mai?

    Currently, May is the cheapest month in which you can book a flight from Ko Samui to Chiang Mai (average of ฿55). Flying from Ko Samui to Chiang Mai in December is currently the most expensive (average of ฿89). 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

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Alternative routes for Ko Samui to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Ko Samui to Chiang Mai?

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

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

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

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

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