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Chiang Mai

$93+ Cheap flights from Ko Samui to Chiang Mai (USM - CNX)

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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CNX
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$236
(ThaiVietJet)

One-way from

$93
(Kiwi.com)

Popular in

October

Cheapest in

May

Average price

$427

Good round-trip deal

$375 or less

Good one-way deal

$106 or less
Provider with most accurate pricing for Ko Samui-Chiang Mai flight deals.
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Provider most trusted by Cheapflights users for Ko Samui-Chiang Mai flights.
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From Ko Samui to Chiang Mai
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One-way flight from Ko Samui to Chiang Mai
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Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Ko Samui to Chiang Mai.
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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 October 23, 2025.

This ThaiVietJet deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ThaiVietJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/188:15 amUSM - CNX
1 stop7h 25mMultiple Airlines
Tue 11/2510:25 pmCNX - USM
1 stop8h 45mMultiple Airlines
Deal found 10/21$236
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:15 amUSM - CNX
1 stop12h 40mMultiple Airlines
Wed 11/2610:25 pmCNX - USM
1 stop8h 45mMultiple Airlines
Deal found 10/22$243
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:55 amUSM - CNX
Nonstop1h 45mMultiple Airlines
Tue 11/257:55 pmCNX - USM
1 stop11h 15mMultiple Airlines
Deal found 10/21$248
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:50 amUSM - CNX
Nonstop1h 50mMultiple Airlines
Thu 11/2710:25 pmCNX - USM
1 stop8h 45mMultiple Airlines
Deal found 10/23$251
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:50 amUSM - CNX
Nonstop1h 50mBangkok Airways
Fri 12/1212:10 pmCNX - USM
1 stop9h 10mBangkok Airways
Deal found 10/21$281
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:50 amUSM - CNX
Nonstop1h 50mMultiple Airlines
Fri 12/126:50 amCNX - USM
2 stops14h 00mMultiple Airlines
Deal found 10/21$282
This Booking.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:50 amUSM - CNX
Nonstop1h 50mBangkok Airways
Wed 11/2611:30 amCNX - USM
Nonstop1h 45mBangkok Airways
Deal found 10/22$296
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:50 amUSM - CNX
Nonstop1h 50mMultiple Airlines
Sun 11/28:00 amCNX - USM
1 stop12h 30mMultiple Airlines
Deal found 10/21$322

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated October 23, 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

Tue 11/18

8:15 am-3:40 pm

1 stop7h 25m

Chiang Mai

Tue 11/25

10:25 pm-7:10 am

1 stop8h 45m

$236

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Wed 11/19

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 11/26

8:50 pm-7:10 am

1 stop10h 20m

$245

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Thu 11/20

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Thu 11/27

10:25 pm-7:10 am

1 stop8h 45m

$251

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 12/5

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Fri 12/12

12:10 pm-9:20 pm

1 stop9h 10m

$281

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 12/5

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Fri 12/12

6:50 am-8:50 pm

2 stops14h 00m

$282

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Wed 11/12

4:30 pm-9:55 pm

1 stop5h 25m

Chiang Mai

Mon 11/17

10:25 pm-7:45 am

1 stop9h 20m

$291

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Tue 2/10

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Fri 2/13

10:10 am-3:40 pm

1 stop5h 30m

$338

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Fri 11/7

11:10 am-3:40 pm

1 stop4h 30m

Chiang Mai

Tue 11/11

10:25 pm-8:10 am

1 stop9h 45m

$339

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 12/20

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 12/24

6:50 am-8:25 am

2 stops25h 35m

$343

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 3/14

8:50 am-10:40 am

Nonstop1h 50m

$93

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 18 results
1
2

Compare providers for flights from Ko Samui to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ko Samui to Chiang Mai in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ko Samui-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ko Samui-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ko Samui-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ko Samui-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ko Samui-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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 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 October 23, 2025.

When flying from Ko Samui to Chiang Mai, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 October 23, 2025.
Get a feel of what it's like to fly with Bangkok Airways from Ko Samui to Chiang Mai by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very good
115 reviews

Comfort

7.9

Entertainment

6.2

Food

7.2

Crew

8.5

Overall

8.0

Boarding

8.0

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
115 reviews
Bangkok Airways
8.0
Very good
115 reviews

Comfort

7.9

Entertainment

6.2

Food

7.2

Crew

8.5

Overall

8.0

Boarding

8.0

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.

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

    Booking a flight from Ko Samui (USM) to Chiang Mai (CNX) is your only option if you wish to fly from Ko Samui to Chiang Mai. On a typical day, there are 5 flights from Ko Samui to Chiang Mai, all of which are around 4h 20m for a nonstop flight. You can also purchase a plane ticket from 1 airline when you book a flight from Ko Samui to Chiang Mai.

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

    There are many flights that can get you from Ko Samui to Chiang Mai in 1h 50m. Fly via Bangkok Airways to get the fastest option. There are 641 mi between Ko Samui and Chiang Mai. All flights are typically nonstop.

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

    According to our current data, Bangkok Airways ($258), offers the cheapest pricing from Ko Samui to Chiang Mai. You may be able to fly from Ko Samui to Chiang Mai for 27% less than the average price by searching for this airline.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ko Samui to Chiang Mai on time: EVA Air (93%), Qatar Airways (93%), Thai Airways (93%).

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

    While on average a flight from Ko Samui to Chiang Mai is generally $250, our data shows the cheapest flight currently is $84. When looking at the most popular route, (Ko Samui - Chiang Mai), you can expect to pay $211 for that flight.

  • 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 vacation 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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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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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 2,558,603 searches. Data last updated October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest$258Average$377FlexibilityNo cancel feeOn-time74%

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