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Cheap flights from Chiang Mai to Siem Reap from $121

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Chiang Mai to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Thai AirAsia Logo
3:30 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
4h 30m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
11:45 am - 7:05 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
7h 20m1 stop Bangkok Don Mueang Intl
$274Thai AirAsia
Sat, Jan 30 - Thu, Feb 4
Thai AirAsia Logo
3:30 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
4h 30m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
4:50 pm - 9:35 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
4h 45m1 stop Bangkok Don Mueang Intl
$274Thai AirAsia
Sat, Jan 30 - Tue, Feb 2
Thai AirAsia Logo
3:00 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
5h 00m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
4:50 pm - 9:35 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
4h 45m1 stop Bangkok Don Mueang Intl
$274Thai AirAsia
Fri, Jan 29 - Wed, Feb 3
Thai AirAsia Logo
3:00 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
5h 00m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
11:45 am - 4:05 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
4h 20m1 stop Bangkok Don Mueang Intl
$274Thai AirAsia
Fri, Jan 29 - Tue, Feb 2
Thai AirAsia Logo
3:30 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
4h 30m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
4:50 pm - 9:35 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
4h 45m1 stop Bangkok Don Mueang Intl
$274Thai AirAsia
Sat, Jan 30 - Wed, Feb 3
Thai AirAsia Logo
3:00 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
5h 00m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
11:45 am - 7:05 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
7h 20m1 stop Bangkok Don Mueang Intl
$274Thai AirAsia
Fri, Jan 29 - Thu, Feb 4
Thai AirAsia Logo
3:30 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
4h 30m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
4:50 pm - 9:35 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
4h 45m1 stop Bangkok Don Mueang Intl
$275Thai AirAsia
Sat, Jan 30 - Sun, Feb 7
Thai AirAsia Logo
12:10 pm - 4:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
3h 50m1 stop Bangkok Don Mueang Intl
Thai AirAsia Logo
4:50 pm - 9:35 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
4h 45m1 stop Bangkok Don Mueang Intl
$275Thai AirAsia
Wed, Feb 3 - Sat, Feb 6
Multiple Airlines Logo
3:30 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
4h 30m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
4:50 pm - 10:00 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
5h 10m1 stop Bangkok Don Mueang Intl
$306Multiple Airlines
Thu, Feb 4 - Fri, Feb 5
Multiple Airlines Logo
3:00 pm - 8:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
5h 00m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
4:50 pm - 10:00 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
5h 10m1 stop Bangkok Don Mueang Intl
$306Multiple Airlines
Fri, Jan 29 - Fri, Feb 5

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Singapore Airlines flights from Chiang Mai to Siem Reap

Our best Singapore Airlines deals on Chiang Mai to Siem Reap flight tickets
Singapore Airlines
Oct 1
CNX5:35 pmChiang Mai
21h 35m
1 stop
SAI3:10 pmSiem Reap–Angkor Intl
Oct 7
SAI4:00 pmSiem Reap–Angkor Intl
24h 35m
1 stop
CNX4:35 pmChiang Mai
$887
Singapore Airlines
Oct 1
CNX5:35 pmChiang Mai
21h 35m
1 stop
SAI3:10 pmSiem Reap–Angkor Intl
Oct 7
SAI4:00 pmSiem Reap–Angkor Intl
24h 35m
1 stop
CNX4:35 pmChiang Mai
$890

Thai AirAsia flights from Chiang Mai to Siem Reap

Our best Thai AirAsia deals on Chiang Mai to Siem Reap flight tickets
Thai AirAsia
Jan 29
CNX3:00 pmChiang Mai
5h 00m
1 stop
SAI8:00 pmSiem Reap–Angkor Intl
Feb 2
SAI11:45 amSiem Reap–Angkor Intl
4h 20m
1 stop
CNX4:05 pmChiang Mai
$274
Thai AirAsia
Jan 29
CNX3:00 pmChiang Mai
5h 00m
1 stop
SAI8:00 pmSiem Reap–Angkor Intl
Feb 6
SAI4:50 pmSiem Reap–Angkor Intl
4h 45m
1 stop
CNX9:35 pmChiang Mai
$275
Thai AirAsia
Feb 2
CNX6:30 amChiang Mai
4h 30m
1 stop
SAI11:00 amSiem Reap–Angkor Intl
Feb 7
SAI4:50 pmSiem Reap–Angkor Intl
4h 45m
1 stop
CNX9:35 pmChiang Mai
$276

momondo 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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Depart

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Price

Cheapest round-trip

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 1/30

3:30 pm-8:00 pm

1 stop4h 30m

Siem Reap–Angkor Intl

Thu 2/4

11:45 am-7:05 pm

1 stop7h 20m

$274

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 1/30

3:30 pm-8:00 pm

1 stop4h 30m

Siem Reap–Angkor Intl

Tue 2/2

4:50 pm-9:35 pm

1 stop4h 45m

$274

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Fri 1/29

3:00 pm-8:00 pm

1 stop5h 00m

Siem Reap–Angkor Intl

Wed 2/3

4:50 pm-9:35 pm

1 stop4h 45m

$274

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Fri 1/29

3:00 pm-8:00 pm

1 stop5h 00m

Siem Reap–Angkor Intl

Tue 2/2

11:45 am-4:05 pm

1 stop4h 20m

$274

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 1/30

3:30 pm-8:00 pm

1 stop4h 30m

Siem Reap–Angkor Intl

Wed 2/3

4:50 pm-9:35 pm

1 stop4h 45m

$274

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Fri 1/29

3:00 pm-8:00 pm

1 stop5h 00m

Siem Reap–Angkor Intl

Thu 2/4

11:45 am-7:05 pm

1 stop7h 20m

$274

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Sat 1/30

3:30 pm-8:00 pm

1 stop4h 30m

Siem Reap–Angkor Intl

Sun 2/7

4:50 pm-9:35 pm

1 stop4h 45m

$275
Quickest round-trip

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Wed 2/3

12:10 pm-4:00 pm

1 stop3h 50m

Siem Reap–Angkor Intl

Sat 2/6

4:50 pm-9:35 pm

1 stop4h 45m

$275

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Thu 2/4

3:30 pm-8:00 pm

1 stop4h 30m

Siem Reap–Angkor Intl

Fri 2/5

4:50 pm-10:00 pm

1 stop5h 10m

$306

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Fri 1/29

3:00 pm-8:00 pm

1 stop5h 00m

Siem Reap–Angkor Intl

Fri 2/5

4:50 pm-10:00 pm

1 stop5h 10m

$306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Siem Reap from

How to get the cheapest flight ticket from Chiang Mai to Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How have Chiang Mai to Siem Reap flight prices changed over time?

As of September 2026, prices for Chiang Mai to Siem Reap flights are approximately 7% more expensive when compared to flights at the same time last year.

When to book flights from Chiang Mai to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Chiang Mai to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chiang Mai to Siem Reap (CNX to SAI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chiang Mai to Siem Reap

Best Price Found

$121

Fastest flight time

11h 35m

Direct flights

None
The best one-way flight to Siem Reap from Chiang Mai in the past 72 hours is $121. The best round-trip flight deal from Chiang Mai to Siem Reap found on momondo in the last 72 hours is $274.
The fastest flight from Chiang Mai to Siem Reap takes 11h 35m
There are no direct flights from Chiang Mai to Siem Reap. There are no popular flight routes from Chiang Mai to Siem Reap.
Search flight deals

Frequently asked questions about flying from Chiang Mai to Siem Reap

  • How far is Chiang Mai to Siem Reap–Angkor Intl by plane?

    Chiang Mai and Siem Reap–Angkor Intl are 494.7 mi apart from one another. By plane, this route typically takes 11h 35m.

  • When did momondo last update prices for flights from Chiang Mai Airport to Siem Reap–Angkor Intl Airport?

    Prices for flights from Chiang Mai Airport to Siem Reap–Angkor Intl Airport were last updated today.

  • How many operators does momondo search for flights from Chiang Mai Airport to Siem Reap–Angkor Intl Airport?

  • How old do you have to be to fly from Chiang Mai Airport to Siem Reap–Angkor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chiang Mai Airport to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The necessary travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chiang Mai to Siem Reap?

Best airlines flying from Chiang Mai to Siem Reap

Compare and see reviews for airlines that fly from Chiang Mai to Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Thai AirAsiaPriceFrom $112Free CancellationRating
7.5
249 reviews
Search Thai AirAsia flights

Why use momondo?

Why should I use momondo to find a flight deal from Chiang Mai to Siem Reap?

Finding the right flight to Siem Reap from Chiang Mai is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Siem Reap quick and easy, saving you time and money.

Can I find flights from Chiang Mai to Siem Reap with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Chiang Mai to Siem Reap flights to just show those with flexible booking policies.

How can momondo help me find flights from Chiang Mai to Siem Reap?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Siem Reap from Chiang Mai.

I’m not ready to book a flight from Chiang Mai to Siem Reap right now. Can momondo alert me if prices change?

Price alerts on flights to Siem Reap from Chiang Mai are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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