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Cheap Flights from Chiang Rai (CEI) to Siem Reap–Angkor (SAI)

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      Travellers and cabin class, 1 Adult, Economy
      1. Home
      2. Thailand
      3. Chiang Rai
      4. Siem Reap–Angkor

      Compare flight fares from Chiang Rai to Siem Reap–Angkor

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      Great Siem Reap–Angkor flight deals, no added fees

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      Flight deals from Chiang Rai to Siem Reap–Angkor

      Looking for a cheap last-minute deal or the best return flight from Chiang Rai to Siem Reap–Angkor ? Find the lowest prices on one-way and return tickets right here.
      Siem Reap.£190 per passenger.Departing Thu, 10 Jul, returning Thu, 17 Jul.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Thu, 10 Jul, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Thu, 17 Jul, arriving in Chiang Rai.Price includes taxes and charges.From £190, select.
      Thu, 10 JulCEI - SAI with Thai AirAsia
      1 stop
      Thu, 17 JulSAI - CEI with Thai AirAsia
      1 stop
      from £190
      Siem Reap.£205 per passenger.Departing Wed, 12 Nov, returning Wed, 26 Nov.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Wed, 12 Nov, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Wed, 26 Nov, arriving in Chiang Rai.Price includes taxes and charges.From £205, select.
      Wed, 12 NovCEI - SAI with Thai AirAsia
      1 stop
      Wed, 26 NovSAI - CEI with Thai AirAsia
      1 stop
      from £205
      Siem Reap.£211 per passenger.Departing Thu, 12 Mar, returning Thu, 19 Mar.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Thu, 12 Mar, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Thu, 19 Mar, arriving in Chiang Rai.Price includes taxes and charges.From £211, select.
      Thu, 12 MarCEI - SAI with Thai AirAsia
      1 stop
      Thu, 19 MarSAI - CEI with Thai AirAsia
      1 stop
      from £211
      Siem Reap.£216 per passenger.Departing Sat, 25 Oct, returning Sat, 8 Nov.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Sat, 25 Oct, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Sat, 8 Nov, arriving in Chiang Rai.Price includes taxes and charges.From £216, select.
      Sat, 25 OctCEI - SAI with Thai AirAsia
      1 stop
      Sat, 8 NovSAI - CEI with Thai AirAsia
      1 stop
      from £216
      Siem Reap.£217 per passenger.Departing Mon, 25 Aug, returning Mon, 8 Sep.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Mon, 25 Aug, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Mon, 8 Sep, arriving in Chiang Rai.Price includes taxes and charges.From £217, select.
      Mon, 25 AugCEI - SAI with Thai AirAsia
      1 stop
      Mon, 8 SepSAI - CEI with Thai AirAsia
      1 stop
      from £217
      Siem Reap.£223 per passenger.Departing Mon, 12 Jan, returning Fri, 30 Jan.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Mon, 12 Jan, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Fri, 30 Jan, arriving in Chiang Rai.Price includes taxes and charges.From £223, select.
      Mon, 12 JanCEI - SAI with Thai AirAsia
      1 stop
      Fri, 30 JanSAI - CEI with Thai AirAsia
      1 stop
      from £223
      Siem Reap.£232 per passenger.Departing Mon, 4 Aug, returning Mon, 18 Aug.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Mon, 4 Aug, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Mon, 18 Aug, arriving in Chiang Rai.Price includes taxes and charges.From £232, select.
      Mon, 4 AugCEI - SAI with Thai AirAsia
      1 stop
      Mon, 18 AugSAI - CEI with Thai AirAsia
      1 stop
      from £232
      Siem Reap.£233 per passenger.Departing Sun, 22 Feb, returning Tue, 24 Feb.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Rai on Sun, 22 Feb, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Tue, 24 Feb, arriving in Chiang Rai.Price includes taxes and charges.From £233, select.
      Sun, 22 FebCEI - SAI with Thai AirAsia
      1 stop
      Tue, 24 FebSAI - CEI with Thai AirAsia
      1 stop
      from £233
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Chiang Rai to Siem Reap–Angkor found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Chiang Rai to Siem Reap–Angkor

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chiang Rai to Siem Reap–Angkor flights are currently cheapest in July.
      Jul
      from £190
      Aug
      from £232
      Sep
      Find prices
      Oct
      Find prices
      Nov
      from £205
      Dec
      Find prices
      Jan
      from £223
      Feb
      from £233
      Mar
      from £211
      Apr
      Find prices
      May
      Find prices
      Jun
      Find prices

      Chiang Rai to Siem Reap–Angkor : Alternative routes

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

      Chiang Rai to Siem Reap: Flight information

      The things to know before you go.
      Cheapest flight found£190
      Cheapest month to flyJuly

      Finding cheap flights from Chiang Rai to Siem Reap–Angkor : Frequently asked questions

      The best price we found for a return flight from Chiang Rai to Siem Reap–Angkor is £190. 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 Chiang Rai to Siem Reap–Angkor . But we found flights with one or more stops from £190.
      As of July 2025, there are no flights flying from Chiang Rai to Siem Reap–Angkor .
      The cheapest month to fly from Chiang Rai to Siem Reap–Angkor is usually July.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Rai Airport to Siem Reap–Angkor Airport on Thursday, 10 July 2025.
      No airlines currently offer direct flights between Chiang Rai Airport and Siem Reap–Angkor 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 Siem Reap–Angkor 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 Siem Reap is around 40 days in advance, so don’t leave your flight to the last minute.
      Currently, Thai AirAsia offers the cheapest flight tickets to Siem Reap–Angkor .

      Flying from Chiang Rai International Airport (CEI) to Siem Reap-Ankor International Airport (SAI): what you need to know

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

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Make sure you're at the airport on time to catch your CEI to SAI flight.

      • Travelling during a peak month like April? Major public holidays and other popular seasons can lead to longer lines and delays at check-in and security. Be extra cautious and get there up to four hours before international flights and two hours before domestic departures.

      • Choose a stopover if you'd like to break up your flight. Simply uncheck 'Direct flights only' to see all your options for tickets from Chiang Rai International Airport to Siem Reap-Ankor International Airport. Suvarnabhumi Airport is a popular stopover on the CEI to SAI route.

      How to find the cheapest flights from Chiang Rai International Airport (CEI) to Siem Reap-Ankor International Airport (SAI)

      • £72 is the lowest price for a one-way Chiang Rai International Airport to Siem Reap-Ankor International Airport flight. Return flights start at £190. These prices can change based on demand and availability.

      • Don't wait until the last moment. You're more likely to get cheap tickets from CEI to SAI if you book in advance. Airlines often offer some fantastic early bird rates.

      • If you're flexible with your travel plans, use the 'Whole month' search tool. It'll show you the lowest price across every month when searching for a flight from Chiang Rai International Airport to Siem Reap-Ankor International Airport.

      • There's no need to check back in every day to see if fares have dropped when you set up a Price Alert. We'll update you as soon as the price changes on cheap flights from CEI to SAI.

      • Secure the perfect flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Chiang Rai International Airport to Siem Reap-Ankor International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

      Handy information about Chiang Rai International Airport (CEI)

      • 73.36% of flights departing from Chiang Rai International Airport touch down at their destination on time.

      • Central Chiang Rai to Chiang Rai International Airport is approximately 5 miles. Depending on traffic, it'll take about 15 minutes to get there if you're driving, ride-sharing or catching a cab.

      • Searching for a handy hotel close to CEI? If you've booked an early flight from Chiang Rai International Airport to Siem Reap-Ankor International Airport, these accommodation options will put you moments from your departure gate:

        • Le Meridien Chiang Rai Resort, Thailand

        • Ipower Chiang Rai

        • SC Palace Chiangrai Hotel

      Arriving at Siem Reap-Ankor International Airport (SAI)

      • Hop off your Chiang Rai International Airport to Siem Reap-Ankor International Airport flight and be relaxing in your hotel bed shortly after. If you want a handy option a short journey from SAI, unpack your bags at Chansor Community Homestay 18.

      Getting from Siem Reap-Ankor International Airport (SAI) to central Siem Reap

      • Siem Reap-Ankor International Airport is approximately 30 miles from the centre of Siem Reap. The drive time takes around 1 hour.

      When to fly to Siem Reap-Ankor International Airport (SAI)

      • The quietest month for a flight from Chiang Rai International Airport to Siem Reap-Ankor International Airport is April, while April is the busiest. Choose the best time to go to Siem Reap based on whether you prefer a more relaxed vibe or a faster pace.

      • The warmest month in Siem Reap is March, with temperatures ranging between 22ºC (72ºF) and 38ºC (100ºF). Book your flights from Chiang Rai International Airport to Siem Reap-Ankor International Airport in this month if this is the type of weather you enjoy.

      • If you like cooler conditions, look for a cheap ticket from CEI to SAI in January. Temperatures average between 18ºC (64ºF) and 33ºC (91ºF) then.

      Explore more of Cambodia

      • Phnom Penh is just one of the many cities in Cambodia waiting to be explored once you've seen the sights of Siem Reap. Around 140 miles away to the south-east, its top attractions include Royal Palace, Tuol Sleng Genocide Museum and Wat Phnom.

      • Around 190 miles south of Siem Reap, Sihanoukville is another essential stop in Cambodia. Start your sightseeing at Ochheuteal Beach, Wat Leu Temple and Wat Krom Temple.

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      Plan the rest of your trip from Chiang Rai to Siem Reap

      • Car hire from Siem Reap–Angkor
      • Hotels in Siem Reap

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

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