Cheap flights from Chiang Mai to Koh Samui

Chiang Mai
CNX
Koh Samui
USM

Flight deals from Chiang Mai to Koh Samui

Below you can see the best deals on flights Chiang Mai — Koh Samui for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 22 September, from $149.

Top 10 cheap flights from Chiang Mai to Koh Samui

VZ
PG
$ 152

Chiang Mai — Koh Samui

22:30—07:10
12 Sep 2026
8 h 40 m
1 stop
VZ
PG
$ 152

Chiang Mai — Koh Samui

21:05—07:10
12 Sep 2026
10 h 5 m
1 stop
VZ
PG
$ 152

Chiang Mai — Koh Samui

20:35—07:10
12 Sep 2026
10 h 35 m
1 stop
FD
PG
$ 153

Chiang Mai — Koh Samui

22:55—07:10
14 Sep 2026
8 h 15 m
1 stop
VZ
PG
$ 156

Chiang Mai — Koh Samui

22:30—07:10
14 Sep 2026
8 h 40 m
1 stop
VZ
PG
$ 156

Chiang Mai — Koh Samui

20:35—07:10
14 Sep 2026
10 h 35 m
1 stop
VZ
PG
$ 156

Chiang Mai — Koh Samui

19:35—07:10
12 Sep 2026
11 h 35 m
1 stop
VZ
PG
$ 156

Chiang Mai — Koh Samui

17:45—07:10
12 Sep 2026
13 h 25 m
1 stop
VZ
PG
$ 156

Chiang Mai — Koh Samui

15:45—07:10
12 Sep 2026
15 h 25 m
1 stop
VZ
PG
$ 156

Chiang Mai — Koh Samui

14:30—07:10
12 Sep 2026
16 h 40 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Chiang Mai — Koh Samui flight

Looking for cheap flights from Chiang Mai to Koh Samui? Compare fares from different airlines, check the flight schedule and travel time — and book your Chiang Mai — Koh Samui ticket online at the best price.

The route has direct flights — around 14 flights per week, flights are operated by Bangkok Airways, a nonstop flight takes about 4 h 30 min, the distance between the cities is around 1,032 km.

Planning your trip? You may find our Koh Samui travel guide, how to get from the airport into town and Koh Samui weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $88Min. price
MayCheapest
JunePeak season
YesDirect flights
1,032 kmDistance
4 h 30 minTravel time
1Airlines
14 / wkFlights

Flight schedule from Chiang Mai to Koh Samui

The table shows direct flights from Chiang Mai to Koh Samui on the selected date. The flight takes approximately 4 h 30 min. Regular flights are operated by Bangkok Airways. Departures from Chiang Mai International Airport airports, arrivals at Koh Samui Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 15 Aug 2026

Flight ticket prices by day: Chiang Mai — Koh Samui

Below is a calendar of the lowest flight ticket prices for Chiang Mai — Koh Samui by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $88 in May, and the most expensive are around $205 in June. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Chiang Mai to Koh Samui by month. Tickets are usually cheapest in June (around $119) and priciest in January (about $209) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$209highMay$128lowSep$125low
Feb$194highJun$119lowOct$131low
Mar$179mediumJul$164mediumNov$155medium
Apr$134lowAug$203highDec$203high

Some values are estimated based on seasonality.

When to fly

Weather in Koh Samui: it is warmest in May (up to 30 °C on average) and coolest in January (around 27 °C). The driest month is March.

Tickets are usually cheapest in May and most expensive in June. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Koh Samui

Dry and wet days · Koh Samui

Wind speed and direction · Koh Samui

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How to get the best deal on a Chiang Mai — Koh Samui ticket

  • Book ahead: fares for Chiang Mai — Koh Samui are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Koh Samui is usually May — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Chiang Mai — Koh Samui route are operated by 1 airline; Bangkok Airways runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • Bangkok AirwaysPG
    5x/week
    WebsiteFleet: 254.3M pax/year
    • Direct flight CNX → USM5x/week
      Duration
      1h 45m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Chiang Mai — Koh Samui route

Flights Chiang Mai — Koh Samui depart from Chiang Mai International Airport and arrive at Koh Samui Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Chiang Mai

CNX
Thailand
About the cityHow to get thereWeatherAll about the country Thailand
Arrival

Koh Samui

USM
Thailand
About the cityHow to get thereWeatherAll about the country Thailand
Departure airports
Arrival airports

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Frequently asked questions about the Chiang Mai — Koh Samui flight

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

A nonstop Chiang Mai — Koh Samui flight takes about 4 h 30 min — the distance between the cities is around 1,032 km.

How far is it from Chiang Mai to Koh Samui?

The distance from Chiang Mai to Koh Samui is about 1,032 km, which a nonstop flight covers in around 4 h 30 min.

Are there direct flights from Chiang Mai to Koh Samui?

Yes, there are nonstop flights Chiang Mai — Koh Samui — around 14 flights per week.

Which airlines fly from Chiang Mai to Koh Samui?

Airlines operating Chiang Mai — Koh Samui include Bangkok Airways. See the full list with schedules in the "Airlines" section on this page.

Which airports do Chiang Mai — Koh Samui flights use?

Flights from Chiang Mai depart from Chiang Mai International Airport, and arrive at Koh Samui Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Chiang Mai to Koh Samui?

The price of a Chiang Mai — Koh Samui ticket depends on your travel date, season and demand: it is usually cheapest to fly in May, and most expensive in June. Tickets typically cost between $88 and $205. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Chiang Mai — Koh Samui?

Flights Chiang Mai — Koh Samui are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is May. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Chiang Mai to Koh Samui?

To catch a low fare Chiang Mai — Koh Samui, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually May.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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