$97 Cheap Flights from Samui Intl. Airport (USM) to Chiang Mai (CNX)

View $97 flight on Thu, Nov 13, 2025Opens in a new window

Popular airlines from Samui Intl. Airport (USM) to Chiang Mai Intl. Airport (CNX)

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Cheap Flights from Samui Intl. Airport to Chiang Mai (USM-CNX)

Prices were available within the past 7 days and start at $97 for one-way flights and $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Wed, Jan 28 - Thu, Jan 29
USM
Koh Samui
CNX
Chiang Mai
$288 Roundtrip, found 5 days ago
$288
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Wed, Jan 28 from Koh Samui to Chiang Mai, returning Thu, Jan 29, priced at $288 found 5 days ago
Bangkok Airways
Mon, Feb 2 - Wed, Feb 4
USM
Koh Samui
CNX
Chiang Mai
$291 Roundtrip, found 1 day ago
$291
Roundtrip
found 1 day ago
Select Bangkok Airways flight, departing Mon, Feb 2 from Koh Samui to Chiang Mai, returning Wed, Feb 4, priced at $291 found 1 day ago
Bangkok Airways
Thu, Jan 29 - Wed, Feb 4
USM
Koh Samui
CNX
Chiang Mai
$291 Roundtrip, found 3 days ago
$291
Roundtrip
found 3 days ago
Select Bangkok Airways flight, departing Thu, Jan 29 from Koh Samui to Chiang Mai, returning Wed, Feb 4, priced at $291 found 3 days ago
Bangkok Airways
Wed, Jan 28 - Thu, Jan 29
USM
Koh Samui
CNX
Chiang Mai
$292 Roundtrip, found 5 days ago
$292
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Wed, Jan 28 from Koh Samui to Chiang Mai, returning Thu, Jan 29, priced at $292 found 5 days ago
Bangkok Airways
Mon, Feb 2 - Wed, Feb 4
USM
Koh Samui
CNX
Chiang Mai
$295 Roundtrip, found 1 day ago
$295
Roundtrip
found 1 day ago
Select Bangkok Airways flight, departing Mon, Feb 2 from Koh Samui to Chiang Mai, returning Wed, Feb 4, priced at $295 found 1 day ago
Bangkok Airways
Wed, Jan 28 - Thu, Jan 29
USM
Koh Samui
CNX
Chiang Mai
$299 Roundtrip, found 5 days ago
$299
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Wed, Jan 28 from Koh Samui to Chiang Mai, returning Thu, Jan 29, priced at $299 found 5 days ago
Bangkok Airways
Thu, Oct 30 - Sun, Nov 2
USM
Koh Samui
CNX
Chiang Mai
$309 Roundtrip, found 1 day ago
$309
Roundtrip
found 1 day ago
Select Bangkok Airways flight, departing Thu, Oct 30 from Koh Samui to Chiang Mai, returning Sun, Nov 2, priced at $309 found 1 day ago
Bangkok Airways
Wed, Jan 28 - Thu, Jan 29
USM
Koh Samui
CNX
Chiang Mai
$316 Roundtrip, found 5 days ago
$316
Roundtrip
found 5 days ago
Select Bangkok Airways flight, departing Wed, Jan 28 from Koh Samui to Chiang Mai, returning Thu, Jan 29, priced at $316 found 5 days ago
Bangkok Airways
Fri, Oct 17 - Sat, Nov 1
USM
Koh Samui
CNX
Chiang Mai
$318 Roundtrip, found 4 days ago
$318
Roundtrip
found 4 days ago
Select Bangkok Airways flight, departing Fri, Oct 17 from Koh Samui to Chiang Mai, returning Sat, Nov 1, priced at $318 found 4 days ago
Bangkok Airways
Thu, Jan 29 - Wed, Feb 4
USM
Koh Samui
CNX
Chiang Mai
$320 Roundtrip, found 3 days ago
$320
Roundtrip
found 3 days ago
Select Bangkok Airways flight, departing Thu, Jan 29 from Koh Samui to Chiang Mai, returning Wed, Feb 4, priced at $320 found 3 days ago

Find the cheapest month to fly from Koh Samui (USM) to Chiang Mai (CNX)

May is typically the cheapest month to fly

From $191 - $421 per traveler.

Alternative airports near Chiang Mai

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Chiang Mai Intl. CNX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $439
CNX
Chiang Mai Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $439
Flights from Samui Intl. Airport (USM) to Chiang Mai (CNX)
Origin airport
Samui Intl. Airport
Destination airport
Chiang Mai Intl.
Airlines serving
Bangkok Airways
Roundtrip price
$288
Distance
641 mi
Average flight time
1 hour 45 mins

Samui Intl. Airport to Chiang Mai Flights

The cheapest times to fly from Samui Intl. Airport to Chiang Mai

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Samui Intl. Airport to Chiang Mai are during the month of January. You can find some of the cheapest flights from Samui Intl. Airport to Chiang Mai with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Samui Intl. Airport to Chiang Mai

Sunday is one of the best days to book for cheap flights from Samui Intl. Airport to Chiang Mai: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Samui Intl. Airport to Chiang Mai

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Samui Intl. Airport to Chiang Mai in 2025. You can also book with separate airlines for your outbound and return journeys, from $97 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Samui Intl. Airport to Chiang Mai flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Samui Intl. Airport to Chiang Mai airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX) cost?
Lock in a cheap one-way flight from $97 or cheap return flight from $288 from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
January is the cheapest month to fly from USM to CNX. Traveling during an off-peak travel window is often the key to finding better deals on flights.
Which airlines fly direct from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
Hop on a direct flight with Bangkok Airways and travel straight from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX).
What is the cheapest airline that flies from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from USM to CNX. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
On average, there's only 1 nonstop flight operating from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX) every day. If this doesn't fit your travel plans, consider flights with a layover. Just filter your search results on Expedia to include one or two stops to find the next best option.
What are the most popular departure times for flights from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
More passengers fly between USM and CNX at 8 AM than at any other point in the day. Rather go when it's quieter? Consider flying outside peak hours and there's a chance you'll save on your fare as well.
What day of the week has the most flights from USM to CNX?
Friday offers the most flights from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX). Consider jetting off on this day and you'll have the best chance of finding a departure that fits your itinerary.
What is the earliest flight from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
Take the earliest flight at around 8:50AM UTC+7, departing from Ko Samui Airport (USM). You'll be traveling for approximately 1h 50m, landing at Chiang Mai Intl. Airport (CNX) at approximately 10:40AM UTC+7.
How long does it take to fly from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
Flights from USM to CNX have an average travel time of 1 hour and 50 minutes. The distance between these two airports is 640 mi.
What airline has the least delays from USM to CNX?
Consider booking with Bangkok Airways if you'd like to go straight from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX) without any holdups. This carrier has the strongest track record for punctuality, with an on-time score of 100%. Want real-time updates? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
To arrive at Chiang Mai Intl. Airport (CNX) on schedule, pick a flight that leaves Ko Samui Airport (USM) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Chiang Mai from Ko Samui Airport (USM)?
If you've booked a direct flight from Ko Samui Airport (USM) to Chiang Mai, Chiang Mai Intl. Airport (CNX) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX) last-minute?
Booking your plane ticket from USM to CNX right before your trip is typically more expensive. However, if you're flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an USM to CNX flight and hotel package?
Compared with arranging flights and hotels separately, booking an USM to CNX flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place takes the hassle out of planning your trip. Just secure your flights and choose from our wide range of stays, then customize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Ko Samui Airport (USM) to Chiang Mai Intl. Airport (CNX)?
If you reserved your USM to CNX flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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*Available to One Key members.