Find flights
When to book
Airlines
FAQs
Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Ko Samui to Chiang Mai from ฿3,412

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CNX
23 Jul — 30 Jul1
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 18 July 2025.

Round-trip from

฿5,816

One-way from

฿3,412

Popular in

January

Cheapest in

May

Good one-way deal

฿3,555 or less
1/9-8/9
  • 1/9-8/9
  • 1 total stop
  • 12h 10m total
  • Ko Samui to Chiang Mai
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 30/9
  • Nonstop
  • 1h 45m total
  • Ko Samui to Chiang Mai
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (฿64,077 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (฿16,272 potential savings vs. average return price).
Search Deals
Price to beat on a one-way flight from Ko Samui to Chiang Mai.
Search Deals

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 18 July 2025.

Mon 1/908:55USM - CNX
Nonstop1h 45mMultiple Airlines
Mon 8/920:55CNX - USM
1 stop10h 25mMultiple Airlines
Deal found 17/7฿5,816
Thu 23/1008:55USM - CNX
Nonstop1h 45mBangkok Airways
Sat 25/1010:10CNX - USM
1 stop7h 35mBangkok Airways
Deal found 16/7฿6,303

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 18 July 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

Mon 1/9

08:55-10:40

Nonstop1h 45m

Chiang Mai

Mon 8/9

20:55-07:20

1 stop10h 25m

฿5,816

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 23/10

08:55-10:40

Nonstop1h 45m

Chiang Mai

Sat 25/10

10:10-17:45

1 stop7h 35m

฿6,303

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Tue 30/9

08:55-10:40

Nonstop1h 45m

฿3,412

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 27/9

15:25-12:05

2 stops20h 40m

฿3,541

Flights are sorted by cheapest return flights first.

Deals found on 16/7

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 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.

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 18 July 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.

Weekly flight availability from Ko Samui to Chiang Mai

Explore weekly flight availability from Ko Samui to Chiang Mai. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 July 2025.

The most flights from USM to CNX are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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 18 July 2025.
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
8.0
Very Good
111 reviews
Check prices

Crew

8.5

Food

7.2

Boarding

7.9

Comfort

7.8

Overall

8.0

Entertainment

6.2

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very Good
111 reviews
Bangkok Airways
8.0
Very Good
111 reviews
Check prices

Crew

8.5

Food

7.2

Boarding

7.9

Comfort

7.8

Overall

8.0

Entertainment

6.2

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

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.

  • 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 ฿6,303 on this airline. This flight start at 46% 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 (98%), Qatar Airways (98%) and Thai Airways (98%).

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

    Looking at all options, your cheapest flight can be booked for ฿3,555. While the most popular route (Ko Samui - Chiang Mai) can be booked for ฿5,816 on average our data indicates ฿4,577 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

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 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.

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.