How long is the flight from Region of Ontario to Region of Siem Reap?

There are many flights that can get you from Region of Ontario to Region of Siem Reap in 39h 25m. Fly via United Airlines to get the fastest option. The distance between Region of Ontario and Region of Siem Reap is about 13649 km.

In terms of precipitation, rainfall in Region of 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 Region of Siem Reap when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Region of 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 ON to SI?

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

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

Yes. In addition to deals on Ontario to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Siem Reap?

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

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

Yes. Cheapflights offers flight deals from Ontario 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$ 765+ Cheap Flights from Ontario to Siem Reap

Cheap flight deals from Ontario to Siem Reap

Enter your travel dates to find the best prices.

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Cheapest flights from Ontario to Siem Reap
Explore the most affordable flight options available from Ontario to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Mon 30/116:15 p.m. -

2 stops27h 00m

Sun 28/27:25 p.m. -

2 stops33h 35m

Deal found 14/9C$ 1,883

Mon 16/116:30 a.m. -

2 stops39h 25m

Wed 14/410:30 a.m. -

2 stops64h 39m

Deal found 15/9C$ 1,883

Wed 4/115:40 p.m. -

2 stops27h 05m

Wed 16/127:25 p.m. -

2 stops36h 32m

Deal found 16/9C$ 2,054

Wed 14/101:05 p.m. -

2 stops36h 10m

Wed 16/127:25 p.m. -

2 stops32h 32m

Deal found 13/9C$ 2,100

Tue 13/101:05 p.m. -

2 stops32h 55m

Sun 1/117:25 p.m. -

2 stops35h 34m

Deal found 13/9C$ 2,115

Thu 12/119:05 p.m. -

2 stops33h 45m

Thu 3/126:40 p.m. -

2 stops55h 25m

Deal found 17/9C$ 2,117

Thu 12/119:05 p.m. -

2 stops33h 45m

Sat 5/127:30 p.m. -

2 stops54h 35m

Deal found 18/9C$ 2,166

Thu 12/119:05 p.m. -

2 stops57h 25m

Thu 3/127:25 p.m. -

2 stops54h 40m

Deal found 14/9C$ 2,196

Fri 25/99:35 p.m. -

2 stops32h 35m

Sat 17/105:20 p.m. -

3 stops56h 25m

Deal found 15/9C$ 2,203

Sat 7/119:05 p.m. -

2 stops32h 35m

Sun 29/117:05 p.m. -

2 stops55h 00m

Deal found 15/9C$ 2,213

Wed 7/104:30 p.m. -

2 stops29h 30m

Sat 12/127:25 p.m. -

2 stops36h 10m

Deal found 14/9C$ 2,228

Wed 14/107:00 a.m. -

3 stops27h 30m

Wed 16/121:20 p.m. -

2 stops55h 30m

Deal found 13/9C$ 2,255

Find flight deals from Ontario to Siem Reap

Round-trip from	C$ 1,883
One-way from	C$ 765

30/11-28/2
4 total stops
60h 35m total
Ontario to Siem Reap

Search Deals

19/2-31/12
2 total stops
58h 30m total
Ontario to Siem Reap

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSiem Reap

YYZ Toronto Pearson Intl - SAI Siem Reap–Angkor Intl

YYZSAI

Toronto Pearson Intl

Fri 19/2

12:30 p.m.-11:00 a.m.

2 stops58h 30m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 765

OttawaSiem Reap

YOW Ottawa - SAI Siem Reap–Angkor Intl

YOWSAI

Ottawa

Fri 19/2

6:10 a.m.-6:05 p.m.

3 stops47h 55m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 943

TorontoSiem Reap

YYZ Toronto Pearson Intl - SAI Siem Reap–Angkor Intl

YYZSAI

Toronto Pearson Intl

Tue 5/1

7:30 a.m.-11:00 a.m.

3 stops39h 30m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 997

OttawaSiem Reap

YOW Ottawa - SAI Siem Reap–Angkor Intl

YOWSAI

Ottawa

Fri 26/2

3:25 p.m.-8:00 p.m.

3 stops40h 35m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 1,017

TorontoSiem Reap

YYZ Toronto Pearson Intl - SAI Siem Reap–Angkor Intl

YYZSAI

Toronto Pearson Intl

Sat 2/1

11:15 a.m.-3:00 p.m.

2 stops39h 45m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 1,097

TorontoSiem Reap

YYZ Toronto Pearson Intl - SAI Siem Reap–Angkor Intl

YYZSAI

Toronto Pearson Intl

Tue 5/1

2:45 p.m.-6:35 p.m.

2 stops39h 50m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 1,114

TorontoSiem Reap

YTZ Toronto Island - SAI Siem Reap–Angkor Intl

YTZSAI

Toronto Island

Fri 19/2

7:10 p.m.-8:00 p.m.

3 stops36h 50m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 1,179

OttawaSiem Reap

YOW Ottawa - SAI Siem Reap–Angkor Intl

YOWSAI

Ottawa

Fri 12/2

3:10 p.m.-8:50 a.m.

3 stops29h 40m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 1,188

TorontoSiem Reap

YYZ Toronto Pearson Intl - SAI Siem Reap–Angkor Intl

YYZSAI

Toronto Pearson Intl

Sun 3/1

12:30 p.m.-9:15 a.m.

3 stops32h 45m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 1,272

MontrealSiem Reap

YUL Montreal Pierre Elliott Trudeau Intl - SAI Siem Reap–Angkor Intl

YULSAI

Montreal Pierre Elliott Trudeau Intl

Wed 20/1

8:45 a.m.-6:45 p.m.

2 stops46h 00m

Siem Reap–Angkor Intl

Wed 31/12

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

Nonstop0h 00m

C$ 1,298

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/9

Showing 1-10 of 26 resultsSorted by cheapest first

Best time to book a flight from Ontario to Siem Reap

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

YYZ-SAI

YOW-SAI

YTZ-SAI

YUL-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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Siem Reap

CAON-KHSI

YYZ-SAI

YOW-SAI

YTZ-SAI

YUL-SAI

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Region of Ontario to Region of Siem Reap?
There are many flights that can get you from Region of Ontario to Region of Siem Reap in 39h 25m. Fly via United Airlines to get the fastest option. The distance between Region of Ontario and Region of Siem Reap is about 13649 km.
Can I find deals for flights from Ontario to Siem Reap that include hotel bookings?
Yes. In addition to deals on Ontario to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Siem Reap?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Siem Reap.
Can I find deals for business class flights from Ontario to Siem Reap?
Yes. Cheapflights offers flight deals from Ontario 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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Alternative routes for Ontario to Siem Reap

Pierre Elliott Trudeau Intl to Siem Reap flights

Pearson Intl to Siem Reap flights

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Pearson Intl to Krong Preah Sihanouk flights

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

When you search for this flight from Ontario 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 Ontario to Siem Reap?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Siem Reap.

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

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Cheap flights from Ontario to Siem Reap from C$ 765

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Siem Reap

Cheapest flights from Ontario to Siem ReapExplore the most affordable flight options available from Ontario to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Explore the most affordable flight options available from Ontario to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Ontario to Siem ReapDiscover carefully curated flight deals from Ontario to Siem Reap that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Ontario to Siem Reap that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Ontario to Siem ReapDiscover last-minute flight deals from Ontario to Siem Reap. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Siem Reap. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Ontario to Siem ReapSearch for one-way flight options from Ontario to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from Ontario to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

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Best time to book a flight from Ontario to Siem Reap

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

Cheapflights Insights

Related info for your journey

How long is the flight from Region of Ontario to Region of Siem Reap?

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

How can I find direct flights from Ontario to Siem Reap?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario 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.

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

Ontario and Siem Reap flights

Browse other Ontario and Siem Reap flight options. Last updated on 18 September 2026.

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

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Cheapest flights from Ontario to Siem Reap
Explore the most affordable flight options available from Ontario to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Ontario to Siem Reap
Discover carefully curated flight deals from Ontario to Siem Reap that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Ontario to Siem Reap
Discover last-minute flight deals from Ontario to Siem Reap. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Ontario to Siem Reap
Search for one-way flight options from Ontario to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.