CNX - USM

₪476 Find Cheap Flights from Chiang Mai to Ko Samui - Compare and Save

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Everything you should know

Cheapest round-trip
₪848
Typical prices: ₪1,181–₪1,486
Multiple Airlines
Sat 24.11Sat 01.12
CNX - USM • 1 stop
Cheapest nonstop
₪1,173
Typical prices: ₪1,216–₪1,476
Bangkok Airways
Sat 17.11Fri 30.11
CNX - USM • Non-stop
Nonstop flights
You can fly nonstop with Bangkok Airways. Average duration is 1h 46m
Nonstop flights
+1
Nonstop flights
+1
Avoid delays
Most punctual • 94% on-time
Best time • Fewest delays
Insights
Insights
When to travel
Cheapest • 61% price drop
Most popular
Good to know
+1
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chiang Mai to Ko Samui (CNX-USM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chiang Mai to Ko Samui

Tue, 24 Nov - Tue, 1 Dec
Multiple Airlines Logo
18:05 - 07:10CNX  Chiang Mai-USM Ko Samui
13h 05m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪848Multiple Airlines
1 day ago
Tue, 9 Mar - Tue, 16 Mar
Bangkok Airways Logo
12:10 - 20:25CNX  Chiang Mai-USM Ko Samui
8h 15m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪885Bangkok Airways
1 day ago
Sat, 21 Nov - Sat, 28 Nov
Bangkok Airways Logo
19:45 - 10:35CNX  Chiang Mai-USM Ko Samui
14h 50m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪978Bangkok Airways
3+ days ago
Tue, 24 Nov - Tue, 1 Dec
Multiple Airlines Logo
18:05 - 07:10CNX  Chiang Mai-USM Ko Samui
13h 05m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
18:40 - 23:35USM  Ko Samui-CNX Chiang Mai
4h 55m1 stop Bangkok Suvarnabhumi
₪1,002Multiple Airlines
1 day ago
Sat, 21 Nov - Fri, 27 Nov
Bangkok Airways Logo
19:45 - 10:35CNX  Chiang Mai-USM Ko Samui
14h 50m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪1,043Bangkok Airways
3+ days ago
Sat, 21 Nov - Mon, 30 Nov
Bangkok Airways Logo
19:45 - 07:35CNX  Chiang Mai-USM Ko Samui
11h 50m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
07:00 - 11:20USM  Ko Samui-CNX Chiang Mai
4h 20m1 stop Bangkok Suvarnabhumi
₪1,070Bangkok Airways
3+ days ago
Wed, 13 Jan - Wed, 27 Jan
Bangkok Airways Logo
10:10 - 16:15CNX  Chiang Mai-USM Ko Samui
6h 05m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪1,098Bangkok Airways
3+ days ago
Mon, 23 Nov - Sat, 28 Nov
Bangkok Airways Logo
19:45 - 07:15CNX  Chiang Mai-USM Ko Samui
11h 30m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪1,139Bangkok Airways
3+ days ago
Wed, 13 Jan - Wed, 27 Jan
Bangkok Airways Logo
10:10 - 16:15CNX  Chiang Mai-USM Ko Samui
6h 05m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪1,148Bangkok Airways
16 hours ago
Sat, 21 Nov - Wed, 25 Nov
Bangkok Airways Logo
19:45 - 10:35CNX  Chiang Mai-USM Ko Samui
14h 50m1 stop Bangkok Suvarnabhumi
Bangkok Airways Logo
08:50 - 10:40USM  Ko Samui-CNX Chiang Mai
1h 50mnonstop
₪1,151Bangkok Airways
3+ days ago
Booking Insights

Price, demand, and travel trends for Chiang Mai to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Chiang Mai to Ko Samui?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Chiang Mai to Ko Samui. It’s 18% cheaper than the average day, while Saturday is the most expensive, with prices 6% higher.

What’s the cheapest month to fly from Chiang Mai to Ko Samui?

•September is the cheapest month to fly from Chiang Mai to Ko Samui at ₪532 round-trip.
•August (₪1,757) and February (₪1,640) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 230% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Key details for Chiang Mai to Ko Samui flights

Low season

May

Cheapest flight

₪476
Beat the crowds with an average 66% drop in travelers.
The most popular month to fly with an average 97% increase in travelers.
One-way flight from Chiang Mai to Ko Samui

When to book flights from Chiang Mai to Ko Samui

Are your dates flexible? Find out the best times to travel from Chiang Mai to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Chiang Mai to Ko Samui flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Chiang Mai to Ko Samui?

    These are the earliest and latest flight times available from Chiang Mai to Ko Samui:

    • Earliest: departs at 11:30 and lands at 13:16
    • Latest: departs at 15:10 and lands at 16:56.

    The flight takes about 1h 46m.

  • Which cabin classes can I book on flights from Chiang Mai to Ko Samui?

    Only Economy Class is available on flights from Chiang Mai to Ko Samui.

  • How long is a flight from Chiang Mai to Ko Samui?

    A nonstop flight from Chiang Mai to Ko Samui takes 1h 46m, covering 1,659 km.

  • Do I need a passport to fly from Chiang Mai to Ko Samui?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Chiang Mai to Ko Samui flight?

    Round-trip flights from Chiang Mai to Ko Samui range from ₪1,181 to ₪1,486, with an average of ₪1,361 over the past 12 months. Anything below ₪1,181 counts as a good deal.

  • How much can I save by taking a layover when flying from Chiang Mai to Ko Samui?

    On this route, layover flights are cheaper than direct options on average. Layover fares average ₪1,191 round-trip via Bangkok Suvarnabhumi (BKK), compared to ₪1,332 for direct flights.

  • How does on-time performance compare across airlines flying from Chiang Mai to Ko Samui?

    Bangkok Airways is the only airline operating Chiang Mai to Ko Samui flights. 94% of its flights are on time.

  • How are flight departures from Chiang Mai to Ko Samui spread across the day?

    Morning is the busiest departure period on Chiang Mai to Ko Samui flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • Have flight prices from Chiang Mai to Ko Samui changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about ₪848 to ₪1,967. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from Chiang Mai to Ko Samui looking right now?

    One-way fares from Chiang Mai to Ko Samui are currently lower than usual. Average one-way flight prices are about ₪525, which is 37% below the typical average for this route.

  • Which car rental options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around ₪39 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Thai Rent

  • Which airports can I use when flying from Chiang Mai to Ko Samui?

    Flights from Chiang Mai to Ko Samui usually depart from Chiang Mai (CNX) and arrive at Ko Samui (USM).

  • What time of day has the fewest delays on flights from Chiang Mai to Ko Samui?

    Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight from Chiang Mai to Ko Samui considered delayed?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Chiang Mai to Ko Samui route, 6% of flights were delayed in the past three months, with delays averaging 1h 55m.

  • Which airports do connecting flights from Chiang Mai to Ko Samui pass through?

    Most connecting flights from Chiang Mai to Ko Samui pass through Bangkok Suvarnabhumi (BKK), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Chiang Mai to Ko Samui?

    Yes. Flexible dates can save you up to 23% on flights from Chiang Mai to Ko Samui. Tuesday is the cheapest departure day at ₪1,129 round-trip on average, while Saturday is the most expensive at ₪1,454, a difference of ₪325.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Chiang Mai to Ko Samui?

    Only Bangkok Airways operates flights between Chiang Mai and Ko Samui.

  • What popular places can I visit in Ko Samui?

    Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Fishermans Village. These are among the most viewed places in Ko Samui on KAYAK.

  • Which airlines include bags at no extra cost on Chiang Mai to Ko Samui flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Bangkok Airways: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • What routes does Bangkok Airways operate between these cities?

    Bangkok Airways is the preferred airline for many people travelling between these cities since it offers the fastest and most convenient flights. There are currently two routes available. The most popular is a direct flight between the cities. The second option is a single-stopover flight via Bangkok Suvarnabhumi.

  • What is the baggage allowance on Singapore Airlines flights?

    The standard Economy ticket is the Economy Lite, which is the cheapest option but only allows one carry-on bag of up to 8 kg. You can choose to add extra baggage during the booking process or opt for a Standard Economy ticket, which allows for the cabin bag and a checked bag weighing up to 23 kg.

  • What ticket classes does Bangkok Airways offer on these routes?

    Between Chiang Mai and Koh Samui, Bangkok Airways only offers Standard Economy Class tickets. Different flexibility options allow for extra luggage or cancellations, but there's only one cabin class on these flights. If you choose different flexibility options, the price of the ticket increases, but you often get the chance to pick your seat during the booking process.

  • Which airlines have the most eco-friendly flights?

    Thai AirAsia and Bangkok Airlines' flights with a self-transfer from Don Mueang to Bangkok Airport offer the most reduced Co2 levels. These flights have 50% less Co2. Another way to be more eco-friendly is choose public transport rather than taxis when travelling to and from airports.

Your guide to booking Chiang Mai to Ko Samui flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average ₪1,129, about ₪325 less than Saturday fares (22% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Chiang Mai to Ko Samui trip for September. Fares historically average ₪532 round-trip in that month - typically ₪1,225 less than the most expensive month, which is August (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Bangkok Suvarnabhumi Airport (BKK) can be cheaper than flying nonstop. The cheapest layover option averages ₪1,191 round-trip on this route – about ₪141 less than nonstop flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

    • Ozo Chaweng Samui - Sha Extra Plus
    • Melia Koh Samui
    • Amari Koh Samui
  • Thai AirAsia and Bangkok Airways combine to offer one of the most affordable flights between Chiang Mai (CNX) and Koh Samui (USM), but these flights have a self-transfer stopover where you must change from Don Mueang Airport (DMK) to Bangkok Suvarnabhumi (BKK). There's a free shuttle available from Don Mueang so don't spend additional money on a taxi transfer.
  • Direct flights are the fastest way to get to Koh Samui from Chiang Mai but it's also the most expensive flight. Several single-stopover flights work out cheaper than direct trips. Both Bangkok Airways and Thai Vietjet Air offer single-stopover flights via Bangkok Suvarnabhumi Airport.
  • The quickest way to get to Chiang Mai Airport from the city centre is to arrange an airport shuttle or take a local taxi. If you want to experience what it's like travelling like a local though, jump on one of the group taxis, songtaews, with red and yellow lines. These travel on a loop to and from the airport and are much cheaper.
  • If you're taking a flight with an airline other than Bangkok Airways or Singapore Airlines, be aware that your stopovers are likely to be self-transfer stopovers. You'll need to collect and check in again at each stop. Ensure your stopover time is long enough in case of any delays since you'll be responsible for any additional costs if you miss your connecting flight.
  • For those of you looking to explore South East Asia, consider catching a flight with Singapore Airlines that offers a long stopover at Singapore Changi Airport (SIN) en route. You can venture out and explore the airport and parts of Singapore before heading back to catch your connecting flight. There are often flights with stopovers as long as 20 hours.

Prefer to fly non-stop from Chiang Mai to Ko Samui?

 
Find which airlines fly direct from Chiang Mai Airport to Ko Samui Airport, which days they fly and book direct flights.

Nonstop departures

Chiang Mai to Ko Samui

Monday

Bangkok Airways

Bangkok Airways

Tuesday

Bangkok Airways

Bangkok Airways

Wednesday

Bangkok Airways

Bangkok Airways

Thursday

Bangkok Airways

Bangkok Airways

Friday

Bangkok Airways

Bangkok Airways

Saturday

Bangkok Airways

Bangkok Airways

Sunday

Bangkok Airways

Bangkok Airways

See more direct flights

Nonstop returns

Ko Samui to Chiang Mai

Monday

Bangkok Airways

Bangkok Airways

Tuesday

Bangkok Airways

Bangkok Airways

Wednesday

Bangkok Airways

Bangkok Airways

Thursday

Bangkok Airways

Bangkok Airways

Friday

Bangkok Airways

Bangkok Airways

Saturday

Bangkok Airways

Bangkok Airways

Sunday

Bangkok Airways

Bangkok Airways

See more direct flights

More options for your flight from Chiang Mai to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car rental