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Cheap flights from Ontario to Siem Reap from C$ 1,015

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAI
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Siem Reap

Enter your travel dates to find the best prices.

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 22 March 2026.

Mon 11/510:00 a.m.
YYZ
-
SAI
2 stops36h 40m
United Airlines
Wed 27/510:30 a.m.
SAI
-
YYZ
2 stops41h 07m
United Airlines
Deal found 17/3C$ 1,554
Mon 12/106:30 p.m.
YYZ
-
SAI
2 stops27h 30m
Multiple Airlines
Sun 1/117:25 p.m.
SAI
-
YYZ
2 stops33h 04m
Multiple Airlines
Deal found 19/3C$ 1,712
Wed 2/96:35 p.m.
YUL
-
SAI
2 stops27h 25m
Multiple Airlines
Wed 30/97:30 p.m.
SAI
-
YUL
2 stops32h 20m
Multiple Airlines
Deal found 21/3C$ 1,713
Tue 13/1010:25 p.m.
YYZ
-
SAI
2 stops47h 35m
Multiple Airlines
Sun 1/117:25 p.m.
SAI
-
YYZ
2 stops37h 14m
Multiple Airlines
Deal found 18/3C$ 1,729
Mon 12/108:00 p.m.
YYZ
-
SAI
2 stops26h 00m
Multiple Airlines
Mon 2/117:25 p.m.
SAI
-
YYZ
2 stops33h 04m
Multiple Airlines
Deal found 19/3C$ 1,761
Sun 11/102:55 p.m.
YYZ
-
SAI
2 stops43h 35m
Emirates
Tue 3/1111:50 p.m.
SAI
-
YYZ
2 stops45h 00m
Emirates
Deal found 19/3C$ 1,782
Tue 13/101:35 p.m.
YYZ
-
SAI
2 stops35h 40m
Multiple Airlines
Mon 2/117:25 p.m.
SAI
-
YYZ
2 stops33h 04m
Multiple Airlines
Deal found 19/3C$ 1,798
Sun 11/102:55 p.m.
YYZ
-
SAI
2 stops43h 35m
Emirates
Sat 31/1011:50 p.m.
SAI
-
YYZ
2 stops45h 00m
Emirates
Deal found 19/3C$ 1,803
Mon 12/107:00 p.m.
YYZ
-
SAI
2 stops27h 00m
Multiple Airlines
Sat 31/107:25 p.m.
SAI
-
YYZ
2 stops35h 59m
Multiple Airlines
Deal found 19/3C$ 1,812
Sat 7/116:20 p.m.
YUL
-
SAI
2 stops26h 55m
Multiple Airlines
Sun 29/117:25 p.m.
SAI
-
YUL
2 stops33h 38m
Multiple Airlines
Deal found 19/3C$ 1,816
Sun 11/102:55 p.m.
YYZ
-
SAI
2 stops43h 35m
Emirates
Thu 29/1011:50 p.m.
SAI
-
YYZ
2 stops44h 40m
Emirates
Deal found 19/3C$ 1,820
Sun 11/102:55 p.m.
YYZ
-
SAI
2 stops43h 35m
Emirates
Mon 2/111:20 p.m.
SAI
-
YYZ
2 stops31h 30m
Emirates
Deal found 19/3C$ 1,822

Find flight deals from Ontario to Siem Reap

Keep the following information in mind while searching for Ontario to Siem Reap flight deals. Data was last updated 22 March 2026.

Round-trip from

C$ 1,554

One-way from

C$ 1,015
United Airlines
  • United Airlines
  • 11/5-27/5
  • 4 total stops
  • 77h 47m total
  • Ontario to Siem Reap
Search Deals
4/4
  • 4/4
  • 2 total stops
  • 35h 25m total
  • Ontario to Siem Reap
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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, Cheapflights users made 629,999 searches. Data last updated 22 March 2026.
Use the filters below to find and compare flights from Ontario to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSiem Reap

YYZ - SAI

YYZSAI

Toronto Pearson Intl

Thu 16/4

2:55 p.m.-9:30 p.m.

2 stops43h 35m

Siem Reap–Angkor Intl

Thu 23/4

11:50 p.m.-9:30 a.m.

2 stops44h 40m

C$ 1,863

MontrealSiem Reap

YUL - SAI

YULSAI

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

9:35 p.m.-9:00 a.m.

2 stops24h 25m

Siem Reap–Angkor Intl

Mon 28/9

9:40 a.m.-2:45 p.m.

2 stops40h 05m

C$ 2,082

MontrealSiem Reap

YUL - SAI

YULSAI

Montreal Pierre Elliott Trudeau Intl

Sun 30/8

10:10 a.m.-9:30 p.m.

3 stops48h 20m

Siem Reap–Angkor Intl

Tue 29/9

11:50 p.m.-8:20 a.m.

3 stops67h 30m

C$ 2,122

MontrealSiem Reap

YUL - SAI

YULSAI

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

9:35 p.m.-9:00 a.m.

2 stops24h 25m

Siem Reap–Angkor Intl

Wed 30/9

7:30 p.m.-2:45 p.m.

2 stops54h 15m

C$ 2,130

MontrealSiem Reap

YUL - SAI

YULSAI

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

9:35 p.m.-9:00 a.m.

2 stops24h 25m

Siem Reap–Angkor Intl

Fri 2/10

7:30 p.m.-2:45 p.m.

2 stops54h 15m

C$ 2,130
Quickest round-trip

MontrealSiem Reap

YUL - SAI

YULSAI

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

9:35 p.m.-9:00 a.m.

2 stops24h 25m

Siem Reap–Angkor Intl

Sat 3/10

7:30 p.m.-2:45 p.m.

2 stops30h 15m

C$ 2,136

MontrealSiem Reap

YUL - SAI

YULSAI

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

11:10 a.m.-9:30 p.m.

3 stops47h 20m

Siem Reap–Angkor Intl

Sun 27/9

12:55 p.m.-8:00 a.m.

2 stops54h 05m

C$ 2,242

TorontoSiem Reap

YYZ - SAI

YYZSAI

Toronto Pearson Intl

Thu 16/4

1:10 p.m.-11:10 a.m.

3 stops35h 00m

Siem Reap–Angkor Intl

Thu 23/4

3:00 p.m.-9:42 p.m.

3 stops41h 42m

C$ 2,661

TorontoSiem Reap

YYZ - SAI

YYZSAI

Toronto Pearson Intl

Mon 11/5

7:55 p.m.-6:45 p.m.

2 stops35h 50m

Siem Reap–Angkor Intl

Wed 27/5

9:40 a.m.-5:55 p.m.

2 stops43h 15m

C$ 3,190

TorontoSiem Reap

YYZ - SAI

YYZSAI

Toronto Pearson Intl

Mon 11/5

7:55 p.m.-6:45 p.m.

2 stops35h 50m

Siem Reap–Angkor Intl

Sat 30/5

7:30 p.m.-5:55 p.m.

2 stops33h 25m

C$ 3,202

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/3

Showing 1-10 of 25 resultsSorted by cheapest first
1
2
3

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

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated 22 March 2026.
Check out reviews from past customers who have flown with United Airlines from Ontario to Siem Reap to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,455 reviews
Check prices

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,455 reviews
United Airlines
7.4
Good
9,455 reviews
Check prices

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Ontario to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 24h 25m. Fly via Emirates or Qatar Airways to get the fastest option. The distance between Region of Ontario and Region of Siem Reap is about 13461 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Ontario to Siem Reap

Discover the top airline that operate flights from Ontario to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 1,289AverageC$ 1,368FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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?

Yes! Cheapflights helps users easily find flights from Ontario to Siem Reap with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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