Cheap flights from Chiang Rai to Koh Samui

One-way fares from $125 · CEI → USM · prices found by travellers in the last 48 hours

Compare all dates Koh Samui → Chiang Rai
Cheapest fare
$125

Thai AirAsia · Sat, Feb 13

Cheapest month
February

from $125

Direct flights
Not recently

Usually 1+ stop

Quickest trip
2h 25m

1,150 km

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Cheapest month to fly from Chiang Rai to Koh Samui

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $134
  2. December 2026 $170
  3. January 2027 $146
  4. February 2027 Cheapest $125

Cheapest dates in February 2027

The lowest fares we've seen for each day, cheapest first.

Thai AirAsia
Depart21:20 Sat, Feb 13CEI → USM 2h 25m · 1 stop
$125one way, per person
View deal
Thai AirAsia
Depart21:20 Wed, Feb 10CEI → USM 2h 55m · 1 stop
$130one way, per person
View deal
See every date in February 2027 →

Plan the rest of your trip to Koh Samui

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in Koh SamuiCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in Koh SamuiTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in Koh SamuiPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in Koh SamuiCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Chiang Rai to Koh Samui

Chiang Rai (CEI) and Koh Samui (USM) are about 1,150 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 2h 25m. Over the next few months, one-way fares start from $125, and February 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Chiang Rai to Koh Samui?

The cheapest one-way fare we've seen recently is $125 with Thai AirAsia, departing Saturday, February 13, 2027. Over the coming months, the lowest fare in each month ranges from $125 to $170.

What is the cheapest month to fly from Chiang Rai to Koh Samui?

February 2027 currently has the lowest fares, from $125 one way.

Are there direct flights from Chiang Rai to Koh Samui?

We haven't seen direct fares recently, so most journeys include at least one stop.

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

The quickest journey we've seen takes about 2h 25m. Chiang Rai and Koh Samui are around 1,150 km apart.

Which airlines fly from Chiang Rai to Koh Samui?

Recent fares on this route were with Nok Air and Thai AirAsia.

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