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Cheap flights from Ko Samui to Chiang Mai from ฿3,430

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CNX
18 Jul — 25 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 13 July 2025.

Round-trip from

฿7,281

One-way from

฿3,430

Popular in

January

Cheapest in

May

Good one-way deal

฿3,541 or less
Bangkok Airways
  • Bangkok Airways
  • 29/8-31/8
  • 1 total stop
  • 16h 30m total
  • Ko Samui to Chiang Mai
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 11/9
  • Nonstop
  • 1h 45m total
  • Ko Samui to Chiang Mai
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (฿63,563 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (฿16,112 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 13 July 2025.

Fri 29/808:55USM - CNX
Nonstop1h 45mBangkok Airways
Sun 31/820:00CNX - USM
1 stop14h 45mBangkok Airways
Deal found 11/7฿7,281
Tue 26/808:55USM - CNX
Nonstop1h 45mMultiple Airlines
Tue 2/918:25CNX - USM
1 stop12h 55mMultiple Airlines
Deal found 12/7฿8,123

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 13 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

Fri 29/8

08:55-10:40

Nonstop1h 45m

Chiang Mai

Sun 31/8

20:00-10:45

1 stop14h 45m

฿7,281

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Wed 27/8

08:55-10:40

Nonstop1h 45m

Chiang Mai

Wed 3/9

18:25-07:20

1 stop12h 55m

฿7,832

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 11/9

08:55-10:40

Nonstop1h 45m

฿3,430

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 19/9

07:00-14:35

1 stop7h 35m

฿3,495

Flights are sorted by cheapest return flights first.

Deals found on 12/7

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 13 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 13 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 13 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

Entertainment

6.2

Boarding

7.9

Food

7.2

Overall

8.0

Comfort

7.8

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

Entertainment

6.2

Boarding

7.9

Food

7.2

Overall

8.0

Comfort

7.8

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 ฿7,281 on this airline. This flight start at 38% 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 (100%), Qatar Airways (100%) and Thai Airways (100%).

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

    Looking at all options, your cheapest flight can be booked for ฿3,541. While the most popular route (Ko Samui - Chiang Mai) can be booked for ฿6,181 on average our data indicates ฿4,125 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

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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?

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