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Cheap Flights from Chiang Rai to Koh Samui

Explore the cheapest flights from Chiang Rai to Koh Samui in the next three months. Based on Trip.com's data from the latest 7 days, one-way fares start at S$ 153, and round-trip tickets start at S$ 69.

      • Cheapest nonstop
        CAG 09:40
        1h 50m
        Direct
        BSL 11:30
        Cagliari - Basel | Thu, Aug 27 | easyJet
        S$ 69 S$ 199
        65% off
        65% off
        S$ 199 S$ 69
      • CAG 09:50
        1h 50m
        Direct
        BSL 11:40
        Cagliari - Basel | Fri, Aug 28 | easyJet
        S$ 72 S$ 199
        64% off
        64% off
        S$ 199 S$ 72
      • CAG 09:35
        1h 50m
        Direct
        BSL 11:25
        Cagliari - Basel | Tue, Aug 25 | easyJet
        S$ 72 S$ 199
        64% off
        64% off
        S$ 199 S$ 72
      • CAG 09:35
        1h 50m
        Direct
        BSL 11:25
        Cagliari - Basel | Tue, Jul 21 | easyJet
        S$ 75
        62% off
        S$ 199 S$ 75
      • CAG 09:40
        1h 50m
        Direct
        BSL 11:30
        Cagliari - Basel | Thu, Jul 23 | easyJet
        S$ 83
        57% off
        S$ 199 S$ 83
      • CAG 09:40
        1h 50m
        Direct
        BSL 11:30
        Cagliari - Basel | Thu, Aug 20 | easyJet
        S$ 83
        57% off
        S$ 199 S$ 83
      • CAG 09:50
        1h 50m
        Direct
        BSL 11:40
        Cagliari - Basel | Fri, Aug 14 | easyJet
        S$ 86
        56% off
        S$ 199 S$ 86
      • CAG 09:05
        1h 50m
        Direct
        BSL 10:55
        Cagliari - Basel | Tue, Sep 15 | easyJet
        S$ 87
        56% off
        S$ 199 S$ 87
      • CAG 09:50
        1h 50m
        Direct
        BSL 11:40
        Cagliari - Basel | Fri, Jul 24 | easyJet
        S$ 139
        30% off
        S$ 199 S$ 139
      • CAG 10:00
        23h 55m
        1 stop
        BSL 09:55
        Cagliari - Basel | Thu, Sep 10 | Vueling Airlines
        S$ 82
        59% off
        S$ 199 S$ 82
      • CEI 13:00
        17h 25m
        1 stop
        USM 14:00
        Chiang Rai - Koh Samui | Tue, Jul 21 | Normal Airline
        USM 15:00
        6h
        Direct
        CEI 16:00
        Koh Samui - Chiang Rai | Thu, Jul 23 | Normal Airline
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        Find more flights
      • CEI 21:05
        10h 5m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Fri, Sep 11 | Thai AirAsia
        S$ 153 S$ 236
        35% off
        35% off
        S$ 236 S$ 153
      • CEI 21:05
        10h 5m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Wed, Sep 2 | Thai AirAsia
        S$ 155 S$ 236
        34% off
        34% off
        S$ 236 S$ 155
      • CEI 21:05
        10h 5m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Mon, Aug 31 | Thai AirAsia
        S$ 156 S$ 236
        34% off
        34% off
        S$ 236 S$ 156
      • CEI 21:05
        10h 5m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Sun, Aug 30 | Thai AirAsia
        S$ 156
        34% off
        S$ 236 S$ 156
      • CEI 20:00
        11h 10m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Wed, Sep 2 | Thai Vietjet
        S$ 161
        32% off
        S$ 236 S$ 161
      • CEI 08:25
        22h 45m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Wed, Sep 16 | Thai AirAsia
        S$ 162
        31% off
        S$ 236 S$ 162
      • CEI 16:25
        24h 40m
        1 stop
        USM 17:05
        Chiang Rai - Koh Samui | Tue, Sep 15 | Thai AirAsia
        S$ 164
        31% off
        S$ 236 S$ 164
      • CEI 16:25
        5h 10m
        1 stop
        USM 21:35
        Chiang Rai - Koh Samui | Thu, Sep 10 | Thai AirAsia
        S$ 164
        31% off
        S$ 236 S$ 164
      • CEI 08:25
        22h 45m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Thu, Sep 10 | Thai Vietjet
        S$ 165
        30% off
        S$ 236 S$ 165
      • CEI 15:25
        15h 45m
        1 stop
        USM 07:10
        Chiang Rai - Koh Samui | Wed, Sep 16 | Thai Vietjet
        S$ 165
        30% off
        S$ 236 S$ 165
      • CEI 13:00
        17h 25m
        1 stop
        USM 14:00
        Chiang Rai - Koh Samui | Tue, Jul 21 | Normal Airline
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        Find more flights

Popular airlines from Chiang Rai to Koh Samui

You can choose from 1 airlines that fly from Chiang Rai to Koh Samui, including Thai Airways, Thai AirAsia offers the lowest prices on this route.
Thai Airways logo Thai Airways
Airlines are determined based on actual purchased flight tickets from Chiang Rai to Koh Samui according to previous 12 months data from Trip.com.

Flying from Chiang Rai to Koh Samui

The distance between Chiang Rai and Koh Samui is approximately 1,156.8km. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight priceS$ 153
Cheapest return ticket priceS$ 69
Off-season for travelSeptember
Peak season for travelJuly
Flight distance1,156.8km
Popular airlineThai Airways
Flight statistics for the Chiang Rai–Koh Samui route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • Which airlines offer direct flights from Chiang Rai to Koh Samui?

    At the moment, you can catch a direct flight from Chiang Rai to Koh Samui with the following airlines, including: Thai Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chiang Rai to Koh Samui is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Chiang Rai to Koh Samui, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Sep 11, with one-way flights priced at just S$ 153.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Thai AirAsia.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Koh Samui travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chiang Rai to Koh Samui is September, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Chiang Rai to Koh Samui on July 21, 2026 with Thai Lion Air, with prices starting at S$ 241.
  • You can land at any one of the following hubs in Koh Samui, with Mae Fah Luang - Chiang Rai International Airport to Samui Airport (CEI-USM) is by far the most common option on this route: Samui Airport (USM).
  • The time difference between Koh Samui and Chiang Rai is 0h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Find Cheap Flights & Deals on Trip.com

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.