HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chiang Mai

$97+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CNX
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ko Samui to Chiang Mai with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 September 17, 2025.

Round-trip from

$228
(Trip.com)

One-way from

$97
(Bangkok Airways)

Popular in

January

Cheapest in

May

Average price

$342

Good round-trip deal

$375 or less

Good one-way deal

$162 or less
From Ko Samui to Chiang Mai
Search Deals
One-way flight from Ko Samui to Chiang Mai
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Ko Samui to Chiang Mai.
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 September 17, 2025.

This Trip.com deal was found by Cheapflights users on 9/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:55 amUSM - CNX
Nonstop1h 45mMultiple Airlines
Wed 10/227:20 amCNX - USM
1 stop9h 15mMultiple Airlines
Deal found 9/17$228
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Tue 10/148:55 amUSM - CNX
Nonstop1h 45mMultiple Airlines
Tue 10/2112:40 pmCNX - USM
1 stop5h 45mMultiple Airlines
Deal found 9/16$267
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Sun 10/128:55 amUSM - CNX
Nonstop1h 45mMultiple Airlines
Sun 10/1210:25 pmCNX - USM
1 stop8h 55mMultiple Airlines
Deal found 9/16$272
This Booking.com deal was found by Cheapflights users on 9/16. 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.
Tue 9/308:55 amUSM - CNX
Nonstop1h 45mBangkok Airways
Wed 10/111:55 amCNX - USM
1 stop5h 50mBangkok Airways
Deal found 9/16$286
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Sat 11/18:50 amUSM - CNX
Nonstop1h 50mMultiple Airlines
Sat 11/812:25 pmCNX - USM
2 stops18h 45mMultiple Airlines
Deal found 9/16$287
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Sun 9/218:55 amUSM - CNX
Nonstop1h 45mMultiple Airlines
Mon 9/229:00 pmCNX - USM
2 stops23h 25mMultiple Airlines
Deal found 9/16$302
This Mytrip deal was found by Cheapflights users on 9/17. 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.
Thu 12/118:50 amUSM - CNX
Nonstop1h 50mMultiple Airlines
Thu 12/113:30 pmCNX - USM
1 stop5h 00mMultiple Airlines
Deal found 9/17$306
This Booking.com deal was found by Cheapflights users on 9/17. 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.
Mon 9/298:55 amUSM - CNX
Nonstop1h 45mBangkok Airways
Tue 9/3010:10 amCNX - USM
1 stop6h 40mBangkok Airways
Deal found 9/17$315

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 September 17, 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

Wed 10/15

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Wed 10/22

7:20 am-4:35 pm

1 stop9h 15m

$228

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sun 10/12

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Sun 10/12

10:25 pm-7:20 am

1 stop8h 55m

$272

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Tue 9/30

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Wed 10/1

11:55 am-5:45 pm

1 stop5h 50m

$286

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 11/1

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Sat 11/8

12:25 pm-7:10 am

2 stops18h 45m

$287

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Mon 9/29

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Tue 9/30

10:10 am-4:50 pm

1 stop6h 40m

$315

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 2/7

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 2/11

12:10 pm-5:00 pm

1 stop4h 50m

$333

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

$333

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Wed 10/15

8:55 am-10:40 am

Nonstop1h 45m

$97

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Mon 10/13

8:55 am-10:40 am

Nonstop1h 45m

$97

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Wed 10/8

8:55 am-10:40 am

Nonstop1h 45m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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 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 September 17, 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 September 17, 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
113 reviews

Boarding

8.0

Crew

8.5

Overall

8.0

Food

7.2

Comfort

7.9

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
113 reviews
Bangkok Airways
8.0
Very good
113 reviews

Boarding

8.0

Crew

8.5

Overall

8.0

Food

7.2

Comfort

7.9

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.

  • 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 7 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 45m. 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 32% 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 (90%), Qatar Airways (90%), Thai Airways (90%).

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

    While on average a flight from Ko Samui to Chiang Mai is generally $331, our data shows the cheapest flight currently is $121. 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.

  • What is the cheapest month to book a flight from Ko Samui to Chiang Mai?

    Currently, September is the cheapest month in which you can book a flight from Ko Samui to Chiang Mai (average of $975). Flying from Ko Samui to Chiang Mai in June is currently the most expensive (average of $1,562). 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.

Alternative routes for Ko Samui to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
Suvarnabhumi to Chiang Mai flights
Don Mueang Intl to Krabi flights
Don Mueang Intl to Chiang Mai flights
Suvarnabhumi to Ko Samui flights
Don Mueang Intl to Phuket City flights
Suvarnabhumi to Phuket City flights
Phuket City to Suvarnabhumi flights
Chiang Mai to Don Mueang Intl flights
Suvarnabhumi to Ubon Ratchathani flights
Chiang Mai to Suvarnabhumi flights
Suvarnabhumi to Hat Yai flights
Suvarnabhumi to Khon Kaen flights
Suvarnabhumi to Udon Thani flights
Chiang Mai to Krabi flights
Krabi to Don Mueang Intl flights
Phuket City to Don Mueang Intl flights
Rayong to Phuket City flights
Chiang Mai to Phuket City flights
Ko Samui to Suvarnabhumi flights
Suvarnabhumi to Chiang Rai flights
Hat Yai to Suvarnabhumi flights
Chiang Rai to Suvarnabhumi flights
Suvarnabhumi to Surat Thani flights
Suvarnabhumi to Krabi flights
Krabi to Chiang Mai flights
Udon Thani to Suvarnabhumi flights
Ko Samui to Phuket City flights
Surat Thani to Chiang Mai flights
Surat Thani to Suvarnabhumi flights
Krabi to Ko Samui flights
Chiang Mai to Ko Samui flights
Krabi to Suvarnabhumi flights
Phuket City to Rayong flights
Phuket City to Ko Samui flights
Phuket City to Chiang Mai flights
Chiang Mai to Surat Thani flights

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest$258Average$377FlexibilityNo cancel feeOn-time74%

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.