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

There are many flights that can get you from Chiang Mai to Siem Reap in 4h 30m. Fly via Thai AirAsia or Lao Airlines to get the fastest option. There are 821 km between Chiang Mai and Siem Reap. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Siem Reap ranges from 0.0 - 260.0 mm 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?

When flying from Chiang Mai to Siem Reap, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 vacation 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.

C$ 176+ 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 12 September 2026.

Sat 31/106:30 a.m. -

1 stop4h 30m

Sat 31/104:50 p.m. -

1 stop4h 45m

Deal found 8/9C$ 517

Sat 31/106:30 a.m. -

1 stop4h 30m

Sat 31/107:05 p.m. -

2 stops20h 25m

Deal found 8/9C$ 629

Sun 1/1112:05 p.m. -

1 stop27h 55m

Mon 9/114:50 p.m. -

1 stop22h 50m

Deal found 9/9C$ 1,234

Find flight deals from Chiang Mai to Siem Reap

Round-trip from	C$ 517
One-way from	C$ 176

Thai AirAsia
31/10-31/10
2 total stops
9h 15m total
Chiang Mai to Siem Reap

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Thai AirAsia
22/11-31/12
1 total stop
4h 30m total
Chiang Mai to Siem Reap

Search Deals

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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Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 14/11

6:30 a.m.-11:00 a.m.

1 stop4h 30m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 258

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 9/1

3:30 p.m.-8:00 p.m.

1 stop4h 30m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 260

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 26/10

4:30 p.m.-6:05 p.m.

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 374

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sun 24/1

4:30 p.m.-6:05 p.m.

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 395

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/1

4:30 p.m.-6:05 p.m.

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 396

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sun 10/1

4:30 p.m.-6:05 p.m.

2 stops49h 35m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 396

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 25/1

4:30 p.m.-6:05 p.m.

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 403

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Wed 30/12

4:30 p.m.-6:05 p.m.

2 stops25h 35m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 424

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sun 6/12

4:30 p.m.-6:05 p.m.

2 stops49h 35m

Siem Reap–Angkor Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 434

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 31/10

6:30 a.m.-11:00 a.m.

1 stop4h 30m

Siem Reap–Angkor Intl

Sat 31/10

4:50 p.m.-9:35 p.m.

1 stop4h 45m

C$ 517

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 15 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 round-trip 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?
There are many flights that can get you from Chiang Mai to Siem Reap in 4h 30m. Fly via Thai AirAsia or Lao Airlines to get the fastest option. There are 821 km between Chiang Mai and Siem Reap. Both multi-stop and direct flights can be found to your destination and back.
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 vacation 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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Need flexible booking options for your flight to Siem Reap from Chiang Mai? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights 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 C$ 176

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/11. 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 12 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 12 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 layovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Discover carefully curated flight deals from Chiang Mai to Siem Reap that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Last-minute flights from Chiang Mai to Siem ReapDiscover last-minute flight deals from Chiang Mai to Siem Reap. Data last updated 12 September 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Siem Reap. Data last updated 12 September 2026 and is based on user searches.

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 12 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 12 September 2026.

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

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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

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Alternative routes for Chiang Mai to Siem Reap

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Complete your trip

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

Search flights from Chiang Mai to Siem Reap by cabin class

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Chiang Mai and Siem Reap flights

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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 12 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 layovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Last-minute flights from Chiang Mai to Siem Reap
Discover last-minute flight deals from Chiang Mai to Siem Reap. Data last updated 12 September 2026 and is based on user searches.

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 12 September 2026.