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Chiang Mai

$109+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
USM — CNX
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
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 June 23, 2025.

Round-trip from

$258
(Bangkok Airways)

One-way from

$109
(Bangkok Airways)

Popular in

January

Cheapest in

July

Average price

$329

Good one-way deal

$120 or less
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. 17% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 23, 2025.

This Bangkok Airways deal was found by Cheapflights users on 6/21. 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 Bangkok Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:55 amUSM - CNX
Nonstop1h 45mBangkok Airways
Tue 9/3011:55 amCNX - USM
1 stop5h 50mBangkok Airways
Deal found 6/21$258
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Sat 8/28:55 amUSM - CNX
Nonstop1h 45mMultiple Airlines
Sat 8/912:00 pmCNX - USM
2 stops6h 00mMultiple Airlines
Deal found 6/21$335

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 June 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

Sun 9/28

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Tue 9/30

11:55 am-5:45 pm

1 stop5h 50m

$258

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 8/2

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Sat 8/9

12:00 pm-6:00 pm

2 stops6h 00m

$335

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Tue 9/16

7:00 am-11:15 am

1 stop4h 15m

$109

Ko SamuiChiang Mai

USM - CNX

USMCNX

Ko Samui

Sat 7/12

7:00 am-11:20 am

1 stop4h 20m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

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 month to book a flight from Ko Samui to Chiang Mai?

Currently, April is the cheapest month in which you can book a flight from Ko Samui to Chiang Mai (average of $1,012). Flying from Ko Samui to Chiang Mai in December is currently the most expensive (average of $1,646). 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 June 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.

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 June 23, 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).

Rainfall in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 9.8 inches per month. September is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 in.

Temperature in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 June 23, 2025.
Bangkok Airways
8.0
Very good
111 reviews

Food

7.2

Overall

8.0

Entertainment

6.2

Comfort

7.8

Crew

8.5

Boarding

7.9

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

Food

7.2

Overall

8.0

Entertainment

6.2

Comfort

7.8

Crew

8.5

Boarding

7.9

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 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 26% 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 (100%), Qatar Airways (100%), Thai Airways (100%).

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

    While on average a flight from Ko Samui to Chiang Mai is generally $133, our data shows the cheapest flight currently is $82. 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, April is the cheapest month in which you can book a flight from Ko Samui to Chiang Mai (average of $1,012). Flying from Ko Samui to Chiang Mai in December is currently the most expensive (average of $1,646). 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

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Alternative routes for Ko Samui to Chiang Mai

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