How do I get Price Alerts for flights from Ontario to Region of Siem Reap?

Confirm your travel details to search for the latest offers for flights from Ontario to Region of Siem Reap . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Ontario to Region of Siem Reap with momondo?

By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

When did momondo last update prices for flights from Ontario Airport to Siem Reap?

Prices for flights from Ontario Airport to Siem Reap are refreshed on a daily basis.

How old do you have to be to fly from Ontario Airport to Siem Reap?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Siem Reap.

What documentation or ID do you need to fly to Siem Reap?

The necessary travel and health documents for your Siem Reap 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.

$921 Cheap Flights from Ontario to Siem Reap in 2026

1 adult

0 bags

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Find the cheapest flights from Ontario to Siem Reap

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:10 pm - 6:45 pm

ONT

SAI

29h 35m

2 stops

9:40 am - 5:05 pm

SAI

ONT

21h 25m

2 stops

$921Multiple Airlines

Wed, Apr 8 - Mon, Apr 20

11:10 pm - 6:45 pm

ONT

SAI

29h 35m

2 stops

7:25 pm - 5:05 pm

SAI

ONT

35h 40m

2 stops

$945Multiple Airlines

Wed, Apr 8 - Sun, Apr 19

11:50 pm - 1:15 pm

ONT

SAI

23h 25m

2 stops

10:00 am - 5:50 pm

SAI

ONT

45h 50m

2 stops

$1,117Multiple Airlines

Fri, Mar 13 - Fri, Mar 27

6:10 am - 9:50 am

ONT

SAI

36h 40m

2 stops

4:45 pm - 5:41 pm

SAI

ONT

39h 56m

2 stops

$1,144United Airlines

Mon, Feb 23 - Thu, Feb 26

11:50 pm - 4:55 pm

ONT

SAI

27h 05m

2 stops

9:30 pm - 5:50 pm

SAI

ONT

34h 20m

2 stops

$1,273Multiple Airlines

Sun, Mar 8 - Fri, Mar 20

11:10 pm - 6:45 pm

ONT

SAI

29h 35m

2 stops

9:40 am - 5:05 pm

SAI

ONT

21h 25m

2 stops

$1,585Multiple Airlines

Mon, Jun 15 - Mon, Jun 29

11:10 pm - 6:45 pm

ONT

SAI

29h 35m

2 stops

9:40 am - 5:40 pm

SAI

ONT

46h 00m

2 stops

$1,742Multiple Airlines

Sat, Jun 13 - Sun, Aug 9

11:10 pm - 6:45 pm

ONT

SAI

29h 35m

2 stops

9:40 am - 5:05 pm

SAI

ONT

21h 25m

2 stops

$1,828Multiple Airlines

Wed, Apr 8 - Mon, Apr 20

10:50 pm - 4:10 pm

ONT

SAI

26h 20m

3 stops

9:30 pm - 4:50 pm

SAI

ONT

34h 20m

2 stops

$2,069Multiple Airlines

Mon, Feb 23 - Thu, Feb 26

12:10 am - 6:15 pm

ONT

SAI

28h 05m

3 stops

9:40 am - 6:40 pm

SAI

ONT

47h 00m

2 stops

$2,164Multiple Airlines

Fri, Jun 12 - Sun, Aug 9

United Airlines flights from Ontario to Region of Siem Reap

Our best United Airlines deals on Ontario to Region of Siem Reap flight tickets

United Airlines

Feb 23

ONT6:10 amOntario

36h 40m

2 stops

SAI9:50 amSiem Reap–Angkor Intl

Feb 26

SAI4:45 pmSiem Reap–Angkor Intl

39h 56m

2 stops

ONT5:41 pmOntario

$1,144

United Airlines

Apr 9

ONT6:49 pmOntario

48h 51m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Apr 19

SAI10:30 amSiem Reap–Angkor Intl

37h 26m

2 stops

ONT9:56 amOntario

$2,171

Fly from

Fly to

Route

Depart

Return

Price

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Wed 4/8

11:10 pm-6:45 pm

2 stops29h 35m

Siem Reap–Angkor Intl

Mon 4/20

9:40 am-5:05 pm

2 stops21h 25m

$921

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Wed 4/8

11:10 pm-6:45 pm

2 stops29h 35m

Siem Reap–Angkor Intl

Sun 4/19

7:25 pm-5:05 pm

2 stops35h 40m

$945

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Fri 3/13

11:50 pm-1:15 pm

2 stops23h 25m

Siem Reap–Angkor Intl

Fri 3/27

10:00 am-5:50 pm

2 stops45h 50m

$1,117

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Mon 2/23

6:10 am-9:50 am

2 stops36h 40m

Siem Reap–Angkor Intl

Thu 2/26

4:45 pm-5:41 pm

2 stops39h 56m

$1,144

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Sun 3/8

11:50 pm-4:55 pm

2 stops27h 05m

Siem Reap–Angkor Intl

Fri 3/20

9:30 pm-5:50 pm

2 stops34h 20m

$1,273

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Mon 6/15

11:10 pm-6:45 pm

2 stops29h 35m

Siem Reap–Angkor Intl

Mon 6/29

9:40 am-5:05 pm

2 stops21h 25m

$1,585

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Sat 6/13

11:10 pm-6:45 pm

2 stops29h 35m

Siem Reap–Angkor Intl

Sun 8/9

9:40 am-5:40 pm

2 stops46h 00m

$1,742

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Wed 4/8

11:10 pm-6:45 pm

2 stops29h 35m

Siem Reap–Angkor Intl

Mon 4/20

9:40 am-5:05 pm

2 stops21h 25m

$1,828

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Mon 2/23

10:50 pm-4:10 pm

3 stops26h 20m

Siem Reap–Angkor Intl

Thu 2/26

9:30 pm-4:50 pm

2 stops34h 20m

$2,069

OntarioSiem Reap

ONT - SAI

ONTSAI

Ontario

Fri 6/12

12:10 am-6:15 pm

3 stops28h 05m

Siem Reap–Angkor Intl

Sun 8/9

9:40 am-6:40 pm

2 stops47h 00m

$2,164

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Ontario to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Region of Siem Reap

Fastest flight time	23h 25m
Direct flights	None

The fastest flight from Ontario to Region of Siem Reap takes 23h 25m

There are no direct flights from Ontario to Region of Siem Reap. There are no popular flight routes from Ontario to Region of Siem Reap.

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Siem Reap?
Prices for flights from Ontario Airport to Siem Reap are refreshed on a daily basis.
How old do you have to be to fly from Ontario Airport to Siem Reap?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Siem Reap.
What documentation or ID do you need to fly to Siem Reap?
The necessary travel and health documents for your Siem Reap 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.

How do I get Price Alerts for flights from Ontario to Region of Siem Reap?
Confirm your travel details to search for the latest offers for flights from Ontario to Region of Siem Reap. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Ontario to Region of Siem Reap with momondo?
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

Finding the right flight to Siem Reap from Ontario 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 Ontario to Siem Reap with flexible booking policies on momondo?

All flight searches from Ontario to Siem Reap on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Ontario and Siem Reap by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from Ontario and alert you when they change.

An easier way to manage your Region of Siem Reap trip

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Popular cities in Siem Reap

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Cheap flights from Ontario to Siem Reap from $921

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Siem Reap departing on 4/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Find the cheapest flights from Ontario to Siem Reap

Cheap round-trip flights

United Airlines flights from Ontario to Region of Siem Reap

Our best United Airlines deals on Ontario to Region of Siem Reap flight tickets

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

Cheap Ontario to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Region of Siem Reap

Fastest flight time

Direct flights

When did momondo last update prices for flights from Ontario Airport to Siem Reap?

How old do you have to be to fly from Ontario Airport to Siem Reap?

What documentation or ID do you need to fly to Siem Reap?

How do I get Price Alerts for flights from Ontario to Region of Siem Reap?

How can I save money on flights from Ontario to Region of Siem Reap with momondo?

How does momondo find its flight prices?

Why use momondo?

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

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

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

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

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Siem Reap

Popular cities in Siem Reap

Popular flights according to clicks in the last 7 days on momondo