$189 Cheap Bangkok Airways flights Chiang Mai (CNX) to Samui Intl. Airport (USM)

View $189 flight on Wed, Sep 24, 2025Opens in a new window

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$189 Cheap Bangkok Airways flights Chiang Mai (CNX) to Samui Intl. Airport (USM)

Prices were available within the past 7 days and start at $189 for one-way flights and $403 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Thu, Sep 11 - Sun, Sep 14
CNX
Chiang Mai
USM
Koh Samui
$403 Roundtrip, found 12 hours ago
$403
Roundtrip
found 12 hours ago
Select Bangkok Airways flight, departing Thu, Sep 11 from Chiang Mai to Koh Samui, returning Sun, Sep 14, priced at $403 found 12 hours ago
Bangkok Airways
Thu, Sep 11 - Sun, Sep 14
CNX
Chiang Mai
USM
Koh Samui
$407 Roundtrip, found 12 hours ago
$407
Roundtrip
found 12 hours ago
Select Bangkok Airways flight, departing Thu, Sep 11 from Chiang Mai to Koh Samui, returning Sun, Sep 14, priced at $407 found 12 hours ago
Bangkok Airways
Thu, Sep 11 - Sun, Sep 14
CNX
Chiang Mai
USM
Koh Samui
$410 Roundtrip, found 12 hours ago
$410
Roundtrip
found 12 hours ago
Select Bangkok Airways flight, departing Thu, Sep 11 from Chiang Mai to Koh Samui, returning Sun, Sep 14, priced at $410 found 12 hours ago
Bangkok Airways
Tue, Sep 2 - Mon, Sep 8
CNX
Chiang Mai
USM
Koh Samui
$412 Roundtrip, found 6 days ago
$412
Roundtrip
found 6 days ago
Select Bangkok Airways flight, departing Tue, Sep 2 from Chiang Mai to Koh Samui, returning Mon, Sep 8, priced at $412 found 6 days ago
Bangkok Airways
Sat, Sep 20 - Sun, Sep 21
CNX
Chiang Mai
USM
Koh Samui
$413 Roundtrip, found 1 day ago
$413
Roundtrip
found 1 day ago
Select Bangkok Airways flight, departing Sat, Sep 20 from Chiang Mai to Koh Samui, returning Sun, Sep 21, priced at $413 found 1 day ago
Bangkok Airways
Thu, Sep 11 - Sun, Sep 14
CNX
Chiang Mai
USM
Koh Samui
$414 Roundtrip, found 12 hours ago
$414
Roundtrip
found 12 hours ago
Select Bangkok Airways flight, departing Thu, Sep 11 from Chiang Mai to Koh Samui, returning Sun, Sep 14, priced at $414 found 12 hours ago
Flights from Chiang Mai (CNX) to Samui Intl. Airport (USM)
Origin airport
Chiang Mai Intl.
Destination airport
Samui Intl. Airport
Airlines serving
Bangkok Airways
Popular airline
Bangkok Airways
Distance
641 mi
Average flight time
1 hour 45 mins

Frequently asked questions

How much is a Bangkok Airways flight from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM)?
You can find budget-friendly return Bangkok Airways flights from $403 from CNX to USM by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from $189 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from CNX to USM with Bangkok Airways?
Bangkok Airways flights to Koh Samui are often cheaper in the off-peak months of October and September. Whether you're in search of a return or one-way ticket, you could find a better deal then.
What is the cheapest time to book flights from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM) with Bangkok Airways?
Begin your search one to three months ahead of your departure date to score cheap fares on Bangkok Airways flights from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic journeys.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Bangkok Airways fly nonstop from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM)?
Skip the layovers and fly from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM) on any of Bangkok Airways's 7 weekly direct flights. Use our "Nonstop" and "Airline" filters to find the Bangkok Airways flight that'll arrive at USM at your preferred time.
How long does it take to fly from CNX to USM with Bangkok Airways?
From takeoff till touchdown, a nonstop Bangkok Airways flight from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM) takes around 1h 45m.
What is the earliest Bangkok Airways flight from CNX to USM?
Leaving CNX at 11:30AM UTC+7, the first Bangkok Airways flight to USM lands at 1:15PM UTC+7. Traveling earlier in the day means you'll be less likely to encounter delays.* Not a morning person? The last Bangkok Airways flight from CNX to USM departs at 11:30AM UTC+7 and touches down at 1:15PM UTC+7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Bangkok Airways fly into in Koh Samui?
Get on a Bangkok Airways flight from Chiang Mai Intl. Airport (CNX) to Koh Samui, and you'll probably land at Ko Samui Airport (USM). This is the airline's main hub here.
What kind of luggage can I take on a Bangkok Airways flight from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM)?
You're allowed 1 cabin bag weighing up to 11 lb and dimensions no larger than 22 inches x 14 inches x 9 inches. You can also bring a small personal item onboard when traveling standard economy from CNX to USM with Bangkok Airways. Luggage limits may vary by cabin class and ticket type, so check Bangkok Airways's website to avoid any additional fees at the airport.
Why fly with Bangkok Airways from CNX to USM?
Heading from CNX to USM with Bangkok Airways means enjoying a host of benefits, such as a 4-star airline rating and top-tier customer service. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That's on top of the Flyer Bonus points you can earn with Bangkok Airways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Bangkok Airways fly from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM)?
You'll most likely be flying on an Airbus A319 for your Bangkok Airways flight from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM). However, you may be switched to an alternative aircraft if operational demands require it.
Can I change or cancel my Bangkok Airways flight from Chiang Mai Intl. Airport (CNX) to Ko Samui Airport (USM)?
Depending on your fare type, a fee will generally apply if you cancel or reschedule your booking more than 24 hours after it's confirmed. To find tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when you search for flights. For additional information on modifying or canceling your reservation, go to "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.