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Cheap flights Koh Samui — Chiang Rai

from $180 1 152 km ~1h 51m 3 flights found 1 airlines cheapest on Sunday
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $180 on 11.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 2 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
11 Dec 2026, Fri
Bangkok Airways PG 110
03:15
USM Koh Samui Airport
06:10
CEI Chiang Rai International Airport
2h 55m 1 stop
View this ticket
10 Dec 2026, Thu
Bangkok Airways PG 403
15:00
USM Koh Samui Airport
18:05
CEI Chiang Rai International Airport
3h 5m 1 stop
View this ticket
Route characteristics
Distance
1 152 km
Flight time
1h 51m
Time difference
+0h
Minimum price
from $180 (11.12.2026)
Average price
$183
Maximum price
$186
Cheapest day
Sunday
Departure airports (1)
USM Koh Samui Airport
Arrival airports (1)
CEI Chiang Rai International Airport
Airlines (1)
PG Bangkok Airways
Agencies (2)
Trip.com Clickavia
Prices by day of week
Airlines — cheapest prices 1
Bangkok Airways
Bangkok Airways
3 flights · 3 days
$138
Where to buy tickets 2
Trip.com
1 tickets · 1 days
from $138
Clickavia
2 tickets · 2 days
from $180
Airports

From — Koh Samui (1)

  • USM Koh Samui Airport

To — Chiang Rai (1)

  • CEI Chiang Rai International Airport
Other destinations from Koh Samui
Frequently asked questions about the route Koh Samui — Chiang Rai
How long is the flight from Koh Samui to Chiang Rai?
Approximate flight time — 1h 51m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Koh Samui to Chiang Rai?
The straight-line distance — 1 152 km.
How much do flights from Koh Samui to Chiang Rai cost?
The minimum price over 3 months — from $180 on 11.12.2026.
What is the average ticket price?
The average price — $183. Range: $180 — $186.
What is the time difference between Koh Samui and Chiang Rai?
The difference — +0h.
From which airports does Koh Samui operate flights?
From Koh Samui: USM (Koh Samui Airport).
To which airports in Chiang Rai do flights arrive?
To Chiang Rai: CEI (Chiang Rai International Airport).
Which airlines fly this route?
This route is served by 1 airline: Bangkok Airways.
Which day of the week is cheapest?
The cheapest day of the week — Sunday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Koh Samui — Chiang Rai

Flights Koh Samui — Chiang Rai is a popular route. The straight-line distance is 1 152 km. Flight time 1h 51m. Time difference +0h.

From Koh Samui (USM) flights depart from 1 airport: USM. To Chiang Rai (CEI) — 1 arrival airport: CEI.

1 airline operate on this route: Bangkok Airways.

The minimum price for the next 3 months — from $180 (11.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $183, ranging from $180 to $186. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Sunday.

Other destinations in Thailand from Koh Samui