Cheap flights from Samui International to Chiang Rai

Compare Samui International to Chiang Rai flight deals

Find the cheapest month or even day of the year to fly to Chiang Rai

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Map with a flight path from Samui International to Chiang Rai. A plane icon is halfway along the route with a label that says "1+ stops."
1+ stops

Your route at a glance

Cheapest dealC$376
Cheapest monthSeptember
Most popular airlineBangkok Airways

Flight deals from Samui International to Chiang Rai

Looking for a cheap last-minute deal or the best round-trip flight from Samui International to Chiang Rai? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Samui International to Chiang Rai

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Samui International to Chiang Rai flights are currently cheapest in September.

Samui International to Chiang Rai: Alternative routes

Compare routes from Samui International to Chiang Rai below. You may find an airport to fly into that's cheaper, faster, or easier than Chiang Rai.

Finding cheap flights from Samui International to Chiang Rai: Frequently asked questions

The best price we found for a round-trip flight from Samui International to Chiang Rai is C$376. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Samui International to Chiang Rai. But we found flights with one or more stops from C$376.
There are no flights flying from Samui International to Chiang Rai, as of August 2025.
The cheapest month to fly from Samui International to Chiang Rai is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Samui International Airport to Chiang Rai Airport on Thursday, September 18, 2025.
No airlines currently offer direct flights between Samui International Airport and Chiang Rai Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chiang Rai but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Chiang Rai is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Bangkok Airways offers the cheapest flight tickets to Chiang Rai.

Flying from Koh Samui Airport (USM) to Chiang Rai International Airport (CEI): what you need to know

  • Chiang Rai's timezone is UTC+7, which is the same as Koh Samui.

  • Arrive at the airport on time so you don't miss your USM to CEI flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • During popular months like July, you'll want to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're travelling during a peak period in general.

How to find the cheapest flights from Koh Samui Airport (USM) to Chiang Rai International Airport (CEI)

  • The lowest price we've found for a one-way Koh Samui Airport to Chiang Rai International Airport flight is C$143. A round-trip fare right now is C$376. Depending on the availability and when you book, these fares can change.

  • Don't wait until the last minute. You're more likely to get cheap tickets from USM to CEI if you book in advance. Airlines often have some amazing early bird rates.

  • The 'Whole month' search tool shows you the cheapest flights from Koh Samui Airport to Chiang Rai International Airport throughout the month. It's a great way to snap up a bargain if your trip dates are flexible.

  • Picking up cheap flights from USM to CEI is a cinch with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as a new discounted fare appears.

  • Find the ideal flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Koh Samui Airport to Chiang Rai International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Koh Samui Airport (USM)

  • Of all flights leaving Koh Samui Airport, 69.38% land on time at their destination.

  • Koh Samui Airport is roughly 3 kilometres from central Koh Samui. To help you work out how to get there, use Google Maps. This essential travel app will give you the best route and your public transport options.

  • Need a convenient hotel near USM? If you're catching an early flight from Koh Samui Airport to Chiang Rai International Airport, these accommodation options will have you sleeping moments from your check-in counter:

Arriving at Chiang Rai International Airport (CEI)

Getting from Chiang Rai International Airport (CEI) to central Chiang Rai

  • Chiang Rai International Airport to the centre of Chiang Rai has a drive time of about 15 minutes. It's approximately 8 kilometres away.

When to fly to Chiang Rai International Airport (CEI)

  • April is the busiest month for flights from Koh Samui Airport to Chiang Rai International Airport. To steer clear of the crowds, head to Chiang Rai in February.

  • Lock in your flight from Koh Samui Airport to Chiang Rai International Airport for April if you want to go to Chiang Rai during its warmest month. You can expect temperatures of between 22ºC (72ºF) and 41ºC (106ºF).

  • If you want cooler conditions, search for a cheap ticket from USM to CEI in January. Average temperatures are between 12ºC (54ºF) and 30ºC (86ºF) then.

Explore more of Thailand

  • You've done Chiang Rai, now it's time to discover other parts of Thailand. Journey around 418 kilometres south-east to Udon Thani to tick off its popular sights. From Nong Prajak Public Park to Krom Luang Prachaksinlapakhom Monument and Chinesisches Tor, you'll have a packed itinerary ahead.

  • Chiang Mai is another sought-after destination in Thailand and is around 153 kilometres south-west of Chiang Rai. No journey is complete without a visit to Doi Suthep, Kalare Night Bazaar and Wat Phra Singh.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.