Cheap flights from Koh Samui to Chiang Mai

Koh Samui
USM
Chiang Mai
CNX

Flight deals from Koh Samui to Chiang Mai

Below you can see the best deals on flights Koh Samui — Chiang Mai 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 9 September, from $142.

Top 10 cheap flights from Koh Samui to Chiang Mai

PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
11 Sep 2026
1 h 45 m
Direct flight
PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
19 Sep 2026
1 h 45 m
Direct flight
PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
17 Sep 2026
1 h 45 m
Direct flight
PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
18 Sep 2026
1 h 45 m
Direct flight
PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
13 Sep 2026
1 h 45 m
Direct flight
PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
9 Sep 2026
1 h 45 m
Direct flight
PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
22 Sep 2026
1 h 45 m
Direct flight
PG
$ 142

Koh Samui — Chiang Mai

08:55—10:40
21 Sep 2026
1 h 45 m
Direct flight
PG
$ 144

Koh Samui — Chiang Mai

08:55—10:40
8 Sep 2026
1 h 45 m
Direct flight
PG
$ 162

Koh Samui — Chiang Mai

08:55—10:40
6 Sep 2026
1 h 45 m
Direct flight

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

About the Koh Samui — Chiang Mai flight

Looking for cheap flights from Koh Samui to Chiang Mai? Compare fares from different airlines, check the flight schedule and travel time — and book your Koh Samui — Chiang Mai 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 1 h 45 min, the distance between the cities is around 1,032 km.

Planning your trip? You may find our Chiang Mai travel guide, how to get from the airport into town and Chiang Mai 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 $142Min. price
SeptemberCheapest
AugustPeak season
YesDirect flights
1,032 kmDistance
1 h 45 minTravel time
1Airlines
14 / wkFlights

Flight schedule from Koh Samui to Chiang Mai

The table shows direct flights from Koh Samui to Chiang Mai on the selected date. The flight takes approximately 1 h 45 min. Regular flights are operated by Bangkok Airways. Departures from Koh Samui Airport airports, arrivals at Chiang Mai International 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: 24 Aug 2026

Flight ticket prices by day: Koh Samui — Chiang Mai

Below is a calendar of the lowest flight ticket prices for Koh Samui — Chiang Mai by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $142 in September, and the most expensive are around $227 in August. 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 Koh Samui to Chiang Mai by month. Tickets are usually cheapest in June (around $139) and priciest in January (about $278) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$278highMay$151lowSep$151low
Feb$242highJun$139lowOct$175medium
Mar$218mediumJul$169mediumNov$206high
Apr$230highAug$181mediumDec$254high

Some values are estimated based on seasonality.

When to fly

Weather in Chiang Mai: it is warmest in April (up to 34 °C on average) and coolest in December (around 27 °C). The driest month is February.

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

Temperature · Chiang Mai

Dry and wet days · Chiang Mai

Wind speed and direction · Chiang Mai

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

  • Book ahead: fares for Koh Samui — Chiang Mai 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 Chiang Mai is usually September — 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 Koh Samui — Chiang Mai 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 USM → CNX5x/week
      Duration
      1h 45m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Koh Samui — Chiang Mai route

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

Departure

Koh Samui

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

Chiang Mai

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

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Frequently asked questions about the Koh Samui — Chiang Mai flight

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

A nonstop Koh Samui — Chiang Mai flight takes about 1 h 45 min — the distance between the cities is around 1,032 km.

How far is it from Koh Samui to Chiang Mai?

The distance from Koh Samui to Chiang Mai is about 1,032 km, which a nonstop flight covers in around 1 h 45 min.

Are there direct flights from Koh Samui to Chiang Mai?

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

Which airlines fly from Koh Samui to Chiang Mai?

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

Which airports do Koh Samui — Chiang Mai flights use?

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

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

The price of a Koh Samui — Chiang Mai ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in August. Tickets typically cost between $142 and $227. Check the current lowest fare and low-price calendar on this page.

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

Flights Koh Samui — Chiang Mai 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 September. Compare prices by month in the price trend chart on this page.

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

To catch a low fare Koh Samui — Chiang Mai, 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 September.

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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