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Cheap flights from Chiang Mai to Siem Reap from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chiang Mai to Siem Reap departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Multiple Airlines Logo
10:30 pm - 9:15 amCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
10h 45m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
4:50 pm - 10:00 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
5h 10m1 stop Bangkok Don Mueang Intl
$313Multiple Airlines
Mon, Nov 2 - Wed, Nov 4
Multiple Airlines Logo
6:45 am - 4:05 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
9h 20m2 stops Bangkok Don Mueang Intl Phuket City
Multiple Airlines Logo
4:50 pm - 10:00 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
5h 10m1 stop Bangkok Don Mueang Intl
$337Multiple Airlines
Mon, Nov 2 - Wed, Nov 4
Multiple Airlines Logo
10:30 pm - 9:15 amCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
10h 45m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
4:50 pm - 10:00 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
5h 10m1 stop Bangkok Don Mueang Intl
$349Multiple Airlines
Mon, Nov 2 - Thu, Nov 5
Multiple Airlines Logo
6:30 am - 4:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
9h 30m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
11:45 am - 6:55 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
7h 10m1 stop Bangkok Don Mueang Intl
$361Multiple Airlines
Mon, Nov 2 - Thu, Nov 5
Multiple Airlines Logo
8:05 am - 4:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
7h 55m1 stop Bangkok Don Mueang Intl
Multiple Airlines Logo
7:05 pm - 5:00 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
21h 55m1 stop Hanoi Noibai
$375Multiple Airlines
Tue, Nov 3 - Fri, Nov 6
Multiple Airlines Logo
2:20 pm - 9:45 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
7h 25m2 stops Bangkok Suvarnabhumi Phnom Penh Techo Intl
Multiple Airlines Logo
11:45 am - 6:55 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
7h 10m1 stop Bangkok Don Mueang Intl
$402Multiple Airlines
Mon, Nov 2 - Thu, Nov 5
Multiple Airlines Logo
2:20 pm - 9:45 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
7h 25m2 stops Bangkok Suvarnabhumi Phnom Penh Techo Intl
Multiple Airlines Logo
4:50 pm - 10:00 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
5h 10m1 stop Bangkok Don Mueang Intl
$413Multiple Airlines
Mon, Nov 2 - Thu, Nov 5
Multiple Airlines Logo
10:00 am - 4:00 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
6h 00m2 stops Khon Kaen Bangkok Don Mueang Intl
Multiple Airlines Logo
11:45 am - 10:50 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
11h 05m1 stop Bangkok Don Mueang Intl
$426Multiple Airlines
Tue, Nov 3 - Fri, Nov 6
VietJet Air Logo
4:30 pm - 6:05 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
25h 35m2 stops Ho Chi Minh City Hanoi Noibai
VietJet Air Logo
7:05 pm - 3:30 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
20h 25m2 stops Hanoi Noibai Ho Chi Minh City
$569VietJet Air
Mon, Nov 2 - Thu, Nov 5
VietJet Air Logo
4:30 pm - 6:05 pmCNX  Chiang Mai-SAI Siem Reap–Angkor Intl
25h 35m2 stops Ho Chi Minh City Hanoi Noibai
VietJet Air Logo
7:05 pm - 3:30 pmSAI  Siem Reap–Angkor Intl-CNX Chiang Mai
20h 25m2 stops Hanoi Noibai Ho Chi Minh City
$586VietJet Air
Mon, Nov 2 - Thu, Nov 5

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VietJet Air flights from Chiang Mai to Siem Reap

Our best VietJet Air deals on Chiang Mai to Siem Reap flight tickets
VietJet Air
Nov 2
CNX4:30 pmChiang Mai
25h 35m
2 stops
SAI6:05 pmSiem Reap–Angkor Intl
Nov 5
SAI7:05 pmSiem Reap–Angkor Intl
20h 25m
2 stops
CNX3:30 pmChiang Mai
$569
VietJet Air
Nov 2
CNX4:30 pmChiang Mai
25h 35m
2 stops
SAI6:05 pmSiem Reap–Angkor Intl
Nov 5
SAI7:05 pmSiem Reap–Angkor Intl
20h 25m
2 stops
CNX3:30 pmChiang Mai
$586
VietJet Air
Nov 2
CNX4:30 pmChiang Mai
25h 35m
2 stops
SAI6:05 pmSiem Reap–Angkor Intl
Nov 4
SAI7:05 pmSiem Reap–Angkor Intl
44h 25m
2 stops
CNX3:30 pmChiang Mai
$613

momondo Fare Finder

 
Customize your flight search to find flights from Chiang Mai to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 14, 2026.
Use the filters below to find and compare flights from Chiang Mai to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

10:30 pm-9:15 am

1 stop10h 45m

Siem Reap–Angkor Intl

Wed 11/4

4:50 pm-10:00 pm

1 stop5h 10m

$313

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

6:45 am-4:05 pm

2 stops9h 20m

Siem Reap–Angkor Intl

Wed 11/4

4:50 pm-10:00 pm

1 stop5h 10m

$337

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

10:30 pm-9:15 am

1 stop10h 45m

Siem Reap–Angkor Intl

Thu 11/5

4:50 pm-10:00 pm

1 stop5h 10m

$349

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

6:30 am-4:00 pm

1 stop9h 30m

Siem Reap–Angkor Intl

Thu 11/5

11:45 am-6:55 pm

1 stop7h 10m

$361

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Tue 11/3

8:05 am-4:00 pm

1 stop7h 55m

Siem Reap–Angkor Intl

Fri 11/6

7:05 pm-5:00 pm

1 stop21h 55m

$375

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

2:20 pm-9:45 pm

2 stops7h 25m

Siem Reap–Angkor Intl

Thu 11/5

11:45 am-6:55 pm

1 stop7h 10m

$402
Quickest round-trip

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

2:20 pm-9:45 pm

2 stops7h 25m

Siem Reap–Angkor Intl

Thu 11/5

4:50 pm-10:00 pm

1 stop5h 10m

$413

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Tue 11/3

10:00 am-4:00 pm

2 stops6h 00m

Siem Reap–Angkor Intl

Fri 11/6

11:45 am-10:50 pm

1 stop11h 05m

$426

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

4:30 pm-6:05 pm

2 stops25h 35m

Siem Reap–Angkor Intl

Thu 11/5

7:05 pm-3:30 pm

2 stops20h 25m

$569

Chiang MaiSiem Reap

CNX Chiang Mai - SAI Siem Reap–Angkor Intl

CNXSAI

Chiang Mai

Mon 11/2

4:30 pm-6:05 pm

2 stops25h 35m

Siem Reap–Angkor Intl

Thu 11/5

7:05 pm-3:30 pm

2 stops20h 25m

$586

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 August 2026, prices for Chiang Mai to Siem Reap flights are approximately 36% 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

Fastest flight time

5h 45m

Direct flights

None
The fastest flight from Chiang Mai to Siem Reap takes 5h 45m
There are no direct flights from Chiang Mai to Siem Reap. There are no popular flight routes from Chiang Mai to Siem Reap.
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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 5h 45m.

  • 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
7.4
246 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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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Thai AirAsia