How long is the flight from Chiang Mai to Siem Reap?

For as low as £658, Singapore Airlines can have you in Siem Reap from Chiang Mai in 27h 55m. The distance between Chiang Mai and Siem Reap is about 510 mi.

In terms of precipitation, rainfall in Siem Reap ranges from 0.0 - 260.0 inches per month. September is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit Siem Reap when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Siem Reap, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.0 C).

What is the cheapest time of day to fly from CNX to SAI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Siem Reap as you normally would.

Can I find deals for flights from Chiang Mai to Siem Reap that include hotel bookings?

Yes. In addition to deals on Chiang Mai to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Chiang Mai to Siem Reap?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Siem Reap.

Can I find deals for business class flights from Chiang Mai to Siem Reap?

Yes. Cheapflights offers flight deals from Chiang Mai to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£137+ Cheap Flights from Chiang Mai to Siem Reap, Cambodia

Cheap flight deals from Chiang Mai to Siem Reap

Enter your travel dates to find the best prices.

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Cheapest flights from Chiang Mai to Siem Reap
Explore the most affordable flight options available from Chiang Mai to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Sun 1/1112:05 -

1 stop27h 55m

Mon 9/1116:50 -

1 stop22h 50m

Deal found 9/9£658

Find flight deals from Chiang Mai to Siem Reap

Round-trip from	£658
One-way from	£137

Singapore Airlines
1/11-9/11
2 total stops
50h 45m total
Chiang Mai to Siem Reap

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Thai AirAsia
14/11-31/12
1 total stop
4h 30m total
Chiang Mai to Siem Reap

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Siem Reap that are best for you.

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Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 14/11

06:30-11:00

1 stop4h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£137

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 9/1

15:30-20:00

1 stop4h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£139

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Wed 18/11

06:30-11:00

1 stop4h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£146

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Tue 13/10

22:30-09:00

1 stop10h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£150

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 26/10

16:30-18:05

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£200

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/1

16:30-18:05

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£211

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sun 10/1

16:30-18:05

2 stops49h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£211

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 25/1

16:30-18:05

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£215

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sun 6/12

16:30-18:05

2 stops49h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£231

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Wed 6/1

16:30-18:05

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£231

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Chiang Mai to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Chiang Mai with our price prediction graph.

CNX-SAI

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Chiang Mai to Siem Reap?
For as low as £658, Singapore Airlines can have you in Siem Reap from Chiang Mai in 27h 55m. The distance between Chiang Mai and Siem Reap is about 510 mi.
Can I find deals for flights from Chiang Mai to Siem Reap that include hotel bookings?
Yes. In addition to deals on Chiang Mai to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chiang Mai to Siem Reap?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Siem Reap.
Can I find deals for business class flights from Chiang Mai to Siem Reap?
Yes. Cheapflights offers flight deals from Chiang Mai to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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How does Cheapflights help users find flights from Chiang Mai to Siem Reap?

When you search for this flight from Chiang Mai to Siem Reap, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Siem Reap?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chiang Mai to Siem Reap for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Chiang Mai to Siem Reap with no change fees?

Yes! Cheapflights helps users easily find flights from Chiang Mai to Siem Reap with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to Siem Reap become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Siem Reap from Chiang Mai today and book when prices fit your budget.

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This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Mai to Siem Reap

Cheapest flights from Chiang Mai to Siem Reap
Explore the most affordable flight options available from Chiang Mai to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Explore the most affordable flight options available from Chiang Mai to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Best flights from Chiang Mai to Siem Reap
Discover carefully curated flight deals from Chiang Mai to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Discover carefully curated flight deals from Chiang Mai to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

One-way flights from Chiang Mai to Siem Reap
Search for one-way flight options from Chiang Mai to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Search for one-way flight options from Chiang Mai to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Find flight deals from Chiang Mai to Siem Reap

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Use the filters below to find and compare flights from Chiang Mai to Siem Reap that are best for you.

Best time to book a flight from Chiang Mai to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Chiang Mai with our price prediction graph.

Related info for your journey

How long is the flight from Chiang Mai to Siem Reap?

Can I find deals for flights from Chiang Mai to Siem Reap that include hotel bookings?

How can I find direct flights from Chiang Mai to Siem Reap?

Can I find deals for business class flights from Chiang Mai to Siem Reap?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Mai to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Siem Reap by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Chiang Mai to Siem Reap by cabin class

Find flights from Chiang Mai to Siem Reap, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Chiang Mai and Siem Reap flights

Browse other Chiang Mai and Siem Reap flight options. Last updated on 11 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Chiang Mai to Siem Reap?

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Siem Reap?

Can Cheapflights find flights from Chiang Mai to Siem Reap with no change fees?

Can Cheapflights notify me if prices for flights from Chiang Mai to Siem Reap become cheaper?

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Cheap flights from Chiang Mai to Siem Reap, Cambodia from £137

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Mai to Siem Reap

Cheapest flights from Chiang Mai to Siem ReapExplore the most affordable flight options available from Chiang Mai to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Explore the most affordable flight options available from Chiang Mai to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Best flights from Chiang Mai to Siem ReapDiscover carefully curated flight deals from Chiang Mai to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Discover carefully curated flight deals from Chiang Mai to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

One-way flights from Chiang Mai to Siem ReapSearch for one-way flight options from Chiang Mai to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Search for one-way flight options from Chiang Mai to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Find flight deals from Chiang Mai to Siem Reap

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Siem Reap that are best for you.

Best time to book a flight from Chiang Mai to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Chiang Mai with our price prediction graph.

Related info for your journey

How long is the flight from Chiang Mai to Siem Reap?

Can I find deals for flights from Chiang Mai to Siem Reap that include hotel bookings?

How can I find direct flights from Chiang Mai to Siem Reap?

Can I find deals for business class flights from Chiang Mai to Siem Reap?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Mai to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Siem Reap by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Chiang Mai to Siem Reap by cabin class

Find flights from Chiang Mai to Siem Reap, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Chiang Mai and Siem Reap flights

Browse other Chiang Mai and Siem Reap flight options. Last updated on 11 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Chiang Mai to Siem Reap?

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Siem Reap?

Can Cheapflights find flights from Chiang Mai to Siem Reap with no change fees?

Can Cheapflights notify me if prices for flights from Chiang Mai to Siem Reap become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Chiang Mai to Siem Reap
Explore the most affordable flight options available from Chiang Mai to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Best flights from Chiang Mai to Siem Reap
Discover carefully curated flight deals from Chiang Mai to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

One-way flights from Chiang Mai to Siem Reap
Search for one-way flight options from Chiang Mai to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.