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Cheap flights from Ko Samui to Chiang Mai from ฿3,123

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CNX
23 May — 30 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ko Samui to Chiang Mai

Enter your travel dates to find the best prices.

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 23 April 2026.

Thu 4/608:55
USM
-
CNX
Nonstop1h 45m
Multiple Airlines
Thu 11/606:50
CNX
-
USM
1 stop12h 55m
Multiple Airlines
Deal found 20/4฿7,533
Sun 7/608:55
USM
-
CNX
Nonstop1h 45m
Multiple Airlines
Sun 14/606:50
CNX
-
USM
1 stop12h 55m
Multiple Airlines
Deal found 23/4฿7,694
Sat 6/608:55
USM
-
CNX
Nonstop1h 45m
Multiple Airlines
Sat 13/621:05
CNX
-
USM
1 stop10h 05m
Multiple Airlines
Deal found 22/4฿7,887
Fri 5/608:55
USM
-
CNX
Nonstop1h 45m
Multiple Airlines
Fri 12/606:50
CNX
-
USM
1 stop12h 55m
Multiple Airlines
Deal found 21/4฿8,016
Thu 21/508:55
USM
-
CNX
Nonstop1h 45m
Multiple Airlines
Sun 24/522:55
CNX
-
USM
1 stop8h 15m
Multiple Airlines
Deal found 20/4฿8,112
Sat 16/508:55
USM
-
CNX
Nonstop1h 45m
Multiple Airlines
Sat 23/517:45
CNX
-
USM
1 stop13h 25m
Multiple Airlines
Deal found 18/4฿8,209

Find 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 23 April 2026.

Round-trip from

฿7,533

One-way from

฿3,123

Popular in

March

Cheapest in

April

Average price

฿6,052

Good one-way deal

฿3,606 or less
4/6-11/6
  • 4/6-11/6
  • 1 total stop
  • 14h 40m total
  • Ko Samui to Chiang Mai
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 17/9
  • Nonstop
  • 1h 45m total
  • Ko Samui to Chiang Mai
Search Deals
High demand for flights, 9% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (฿15,707 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from Ko Samui to Chiang Mai.
Search Deals

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 23 April 2026.
Use the filters below to find and compare flights from Ko Samui to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sun 7/6

08:55-10:40

Nonstop1h 45m

Chiang Mai

Sun 14/6

06:50-19:45

1 stop12h 55m

฿7,694

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 5/6

08:55-10:40

Nonstop1h 45m

Chiang Mai

Fri 12/6

21:05-07:10

1 stop10h 05m

฿8,048

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 16/5

07:50-18:00

1 stop10h 10m

Chiang Mai

Sat 23/5

17:45-07:10

1 stop13h 25m

฿8,048
Fastest return journey

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 4/6

08:55-10:40

Nonstop1h 45m

Chiang Mai

Thu 11/6

22:30-07:10

1 stop8h 40m

฿8,145

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 21/5

06:00-20:25

1 stop14h 25m

Chiang Mai

Sun 24/5

22:55-07:10

1 stop8h 15m

฿8,627

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Tue 2/6

08:55-10:40

Nonstop1h 45m

Chiang Mai

Tue 9/6

22:20-07:10

1 stop8h 50m

฿9,336

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 23/5

08:55-10:40

Nonstop1h 45m

Chiang Mai

Mon 25/5

20:00-07:10

1 stop11h 10m

฿9,625

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 18/6

08:55-10:40

Nonstop1h 45m

Chiang Mai

Mon 22/6

20:00-07:10

1 stop11h 10m

฿9,658
Cheapest one-way

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 17/9

06:00-11:15

1 stop5h 15m

฿3,123
Fastest single journey

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sun 21/6

08:55-10:40

Nonstop1h 45m

฿3,380

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 19 resultsSorted by cheapest first
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 23 April 2026.

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.

How much does it cost for a return flight from Ko Samui to Chiang Mai?

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated 23 April 2026.
Read reviews from past customers who have flown with Bangkok Airways from Ko Samui to Chiang Mai. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Overall

8.1

Crew

8.6

Food

7.3

Comfort

8.0

Entertainment

6.3

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Bangkok Airways
8.1
Very Good
128 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Overall

8.1

Crew

8.6

Food

7.3

Comfort

8.0

Entertainment

6.3

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

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.

  • What airports do I use to fly from Ko Samui to Chiang Mai?

    Chiang Mai is the airport most travellers will use when flying to Chiang Mai from Ko Samui. Booking flights from Ko Samui (USM) to Chiang Mai (CNX) should be relatively easy as there are 6 daily flights to Chiang Mai from 1 airline. 1h 45m is how long a flight from Ko Samui to Chiang Mai will take if you book a nonstop flight.

  • 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.

  • What is the cheapest airline to fly from Ko Samui to Chiang Mai round-trip?

    Our cheapest airline available from Ko Samui to Chiang Mai is Bangkok Airways. Our recent data shows that you can find tickets from as low as ฿2,953 on this airline. This flight start at 72% lower than the current average price 3 months from now.

  • 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 (95%), Thai Airways (95%) and เอทิฮัดแอร์เวย์ (95%).

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

    Looking at all options, your cheapest flight can be booked for ฿3,419. While the most popular route (Ko Samui - Chiang Mai) can be booked for ฿7,887 on average, our data indicates ฿4,024 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.

See more FAQs

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Fly from Ko Samui to Chiang Mai on these airlines

Choose from the following airlines for your flight from Ko Samui to Chiang Mai. Flights are based on user searches made on Cheapflights and were last updated on 23 April 2026.
Bangkok Airways flights from Ko Samui to Chiang Mai

Top airline flying from Ko Samui to Chiang Mai

Discover the top airline that operate flights from Ko Samui to Chiang Mai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 23 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿2,953Average฿13,423FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ko Samui to Chiang Mai?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ko Samui to Chiang Mai. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Chiang Mai?

Millions of users choose and trust Cheapflights to book the best flight deals from Ko Samui to Chiang Mai for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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