How often are flights from Ko Samui to Chiang Mai delayed?

About 3% of weekly flights between Ko Samui and Chiang Mai have experienced delays in the past year, with the average delay time being 105 minutes.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ko Samui to Chiang Mai flights?

Over the last year, Bangkok Airways have had the lowest number of delays on this route, with just 3% of flights being delayed.

What is the most punctual flight time for Ko Samui to Chiang Mai flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

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.

Weekly flight availability from Ko Samui to Chiang Mai

The most flights from USM to CNX are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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.

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).

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

While on average a flight from Ko Samui to Chiang Mai is generally $144, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Ko Samui - Chiang Mai), you can expect to pay $211 for that flight.

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%), Thai Airways (93%), Etihad Airways (93%).

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.

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.

$83+ Cheap Flights from Ko Samui to Chiang Mai

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Cheap flight deals from Ko Samui to Chiang Mai

Cheapest

Best

Last-minute

One-way

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 29, 2026.

Tue 11/108:50 am -

Nonstop1h 50m

Tue 11/176:30 am -

1 stop8h 15m

Deal found 9/26

$224

Wed 11/118:50 am -

Nonstop1h 50m

Wed 11/1811:30 am -

Nonstop1h 45m

Deal found 9/27

$234

Wed 11/118:50 am -

Nonstop1h 50m

Wed 11/186:30 am -

1 stop14h 00m

Deal found 9/27

$241

Sun 10/258:50 am -

Nonstop1h 50m

Sun 11/19:00 am -

1 stop5h 45m

Deal found 9/27

$264

Sat 10/178:55 am -

Nonstop1h 45m

Fri 10/238:00 pm -

1 stop11h 10m

Deal found 9/25

$299

Sun 11/84:35 pm -

1 stop6h 00m

Sun 11/151:10 pm -

1 stop5h 20m

Deal found 9/24

$300

Mon 10/512:30 pm -

2 stops19h 00m

Wed 10/1410:30 pm -

1 stop8h 40m

Deal found 9/27

$315

Sun 10/258:50 am -

Nonstop1h 50m

Sun 11/111:30 am -

Nonstop1h 45m

Deal found 9/27

$323

Best flights from Ko Samui to Chiang Mai
Discover carefully curated flight deals from Ko Samui to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.

Wed 11/1111:00 am -

1 stop11h 50m

Wed 11/182:20 pm -

1 stop6h 10m

Deal found 9/27

$257

Tue 11/108:50 am -

Nonstop1h 50m

Tue 11/1711:30 am -

Nonstop1h 45m

Deal found 9/26

$272

Sun 11/88:50 am -

Nonstop1h 50m

Sun 11/158:55 am -

1 stop22h 15m

Deal found 9/24

$264

Sat 10/178:55 am -

Nonstop1h 45m

Mon 10/267:45 pm -

1 stop13h 20m

Deal found 9/25

$299

Tue 11/106:45 am -

1 stop10h 30m

Tue 11/176:30 am -

1 stop8h 15m

Deal found 9/26

$272

Sun 10/188:55 am -

Nonstop1h 45m

Fri 10/238:00 pm -

1 stop11h 10m

Deal found 9/25

$299

Sun 10/256:45 am -

1 stop12h 35m

Sun 11/17:05 am -

1 stop7h 40m

Deal found 9/27

$311

Mon 10/198:55 am -

Nonstop1h 45m

Sun 10/2512:10 pm -

1 stop8h 15m

Deal found 9/25

$350

Sun 11/88:50 am -

Nonstop1h 50m

Sun 11/1511:30 am -

Nonstop1h 45m

Deal found 9/24

$356

Fri 11/134:35 pm -

1 stop5h 25m

Fri 11/207:45 pm -

1 stop12h 00m

Deal found 9/29

$357

Fri 11/138:50 am -

Nonstop1h 50m

Fri 11/2011:30 am -

Nonstop1h 45m

Deal found 9/29

$382

Last-minute flights from Ko Samui to Chiang Mai
Discover last-minute flight deals from Ko Samui to Chiang Mai. Data last updated September 29, 2026 and is based on user searches.

Mon 10/512:30 pm -

2 stops19h 00m

Wed 10/1410:30 pm -

1 stop8h 40m

Deal found 9/27

$315

Sat 10/178:55 am -

Nonstop1h 45m

Fri 10/238:00 pm -

1 stop11h 10m

Deal found 9/25

$299

Sat 10/178:55 am -

Nonstop1h 45m

Thu 10/2210:10 am -

1 stop6h 20m

Deal found 9/25

$331

Sat 10/176:00 am -

1 stop5h 15m

Wed 10/2810:10 am -

1 stop6h 05m

Deal found 9/25

$431

Sat 10/176:00 am -

1 stop5h 15m

Sun 10/2512:10 pm -

1 stop8h 15m

Deal found 9/25

$451

Mon 10/196:00 am -

1 stop13h 10m

Fri 10/238:00 pm -

1 stop11h 10m

Deal found 9/25

$348

Thu 10/228:55 am -

Nonstop1h 45m

Sun 10/2512:10 pm -

1 stop8h 15m

Deal found 9/25

$350

Sun 10/258:50 am -

Nonstop1h 50m

Sun 11/19:00 am -

1 stop5h 45m

Deal found 9/27

$264

Sun 10/258:50 am -

Nonstop1h 50m

Sun 11/111:30 am -

Nonstop1h 45m

Deal found 9/27

$323

One-way flights from Ko Samui to Chiang Mai
Search for one-way flight options from Ko Samui to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.

Wed 3/38:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$83

Wed 1/278:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/26

$86

Tue 3/168:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/28

$93

Tue 3/28:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/26

$94

Tue 10/208:55 am -

Nonstop1h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/28

$100

Fri 12/188:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$101

Wed 11/48:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/27

$106

Tue 11/38:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/27

$107

Thu 11/198:50 am -

Nonstop1h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/29

$108

Wed 10/148:55 am -

Nonstop1h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$119

Mon 10/198:55 am -

Nonstop1h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/28

$121

Find flight deals from Ko Samui to Chiang Mai

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$224 (Kiwi.com)
One-way from	$83 (Booking.com)
Popular in	July
Cheapest in	April
Average price	$328
Good one-way deal	$121 or less

Provider with most accurate pricing for Ko Samui-Chiang Mai flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ko Samui-Chiang Mai flights.

Search Deals

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. 26% potential increase in price ($137 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a one-way flight from Ko Samui to Chiang Mai.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ko Samui to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 3/16

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$93

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Thu 11/19

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$108

Quickest round-trip

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Wed 10/14

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$119

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Wed 1/27

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$126

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Thu 10/8

8:55 am-10:40 am

Nonstop1h 45m

Chiang Mai

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$166

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Mon 2/8

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$168

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Wed 11/11

11:00 am-10:50 pm

1 stop11h 50m

Chiang Mai

Wed 11/18

2:20 pm-8:30 pm

1 stop6h 10m

$257

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Sun 11/8

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Sun 11/15

8:55 am-7:10 am

1 stop22h 15m

$264

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 11/10

8:50 am-10:40 am

Nonstop1h 50m

Chiang Mai

Tue 11/17

11:30 am-1:15 pm

Nonstop1h 45m

$272

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 11/10

6:45 am-5:15 pm

1 stop10h 30m

Chiang Mai

Tue 11/17

6:30 am-2:45 pm

1 stop8h 15m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 17 resultsSorted by cheapest first

Compare providers for flights from Ko Samui to Chiang Mai

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 September.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
BudgetAir	Price Accuracy2 stars	Trust 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.

USM-CNX

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

Prices

Airlines

Delays

What is the cheapest time of day to fly from USM to CNX?

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.

Related info for your journey

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 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%), Thai Airways (93%), Etihad 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 $144, our data shows the cheapest flight currently is $88. 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.

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$83+ Cheap flights from Ko Samui to Chiang Mai (USM - CNX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ko Samui to Chiang Mai with Cheapflights

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Cheap flight deals from Ko Samui to Chiang Mai

Cheapest flights from Ko Samui to Chiang MaiExplore 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 29, 2026.

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 29, 2026.

Best flights from Ko Samui to Chiang MaiDiscover carefully curated flight deals from Ko Samui to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.

Discover carefully curated flight deals from Ko Samui to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.

Last-minute flights from Ko Samui to Chiang MaiDiscover last-minute flight deals from Ko Samui to Chiang Mai. Data last updated September 29, 2026 and is based on user searches.

Discover last-minute flight deals from Ko Samui to Chiang Mai. Data last updated September 29, 2026 and is based on user searches.

One-way flights from Ko Samui to Chiang MaiSearch for one-way flight options from Ko Samui to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.

Search for one-way flight options from Ko Samui to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.

Find flight deals from Ko Samui to Chiang Mai

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ko Samui to Chiang Mai that are best for you.

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 September.

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.

Cheapflights Insights

What is the cheapest time of day to fly from USM to CNX?

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

The most flights from USM to CNX are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How often are flights from Ko Samui to Chiang Mai delayed?

About 3% of weekly flights between Ko Samui and Chiang Mai have experienced delays in the past year, with the average delay time being 105 minutes.

What is the most punctual flight time for Ko Samui to Chiang Mai flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ko Samui to Chiang Mai flights?

Over the last year, Bangkok Airways have had the lowest number of delays on this route, with just 3% of flights being delayed.

Related info for your journey

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

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

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

Can I find deals for flights from Ko Samui to Chiang Mai that include hotel bookings?

How can I find direct flights from Ko Samui to Chiang Mai?

Can I find deals for business class flights from Ko Samui to Chiang Mai?

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.

Other flights to Chiang Mai

Explore flights to Chiang Mai departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.

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Search flights from Ko Samui to Chiang Mai by cabin class

Find flights from Ko Samui to Chiang Mai, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ko Samui and Chiang Mai flights

Browse other Ko Samui and Chiang Mai flight options. Last updated on September 29, 2026.

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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 29, 2026.

Best flights from Ko Samui to Chiang Mai
Discover carefully curated flight deals from Ko Samui to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.

Last-minute flights from Ko Samui to Chiang Mai
Discover last-minute flight deals from Ko Samui to Chiang Mai. Data last updated September 29, 2026 and is based on user searches.

One-way flights from Ko Samui to Chiang Mai
Search for one-way flight options from Ko Samui to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.