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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Siem Reap from C$ 1,058

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SAI
18 Apr — 25 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Siem Reap

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Siem Reap
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 March 2026.

Sat 31/109:00 a.m.
YUL
-
SAI
2 stops37h 15m
Multiple Airlines
Sun 29/117:25 p.m.
SAI
-
YUL
2 stops36h 11m
Multiple Airlines
Deal found 16/3C$ 1,715
Wed 16/127:30 a.m.
YUL
-
SAI
2 stops37h 45m
Multiple Airlines
Mon 4/17:25 p.m.
SAI
-
YUL
2 stops36h 11m
Multiple Airlines
Deal found 14/3C$ 1,761
Sat 7/116:20 p.m.
YUL
-
SAI
2 stops30h 20m
Multiple Airlines
Sun 29/117:25 p.m.
SAI
-
YUL
2 stops36h 11m
Multiple Airlines
Deal found 17/3C$ 1,762
Mon 14/129:00 a.m.
YUL
-
SAI
2 stops36h 15m
Multiple Airlines
Mon 4/17:25 p.m.
SAI
-
YUL
2 stops36h 11m
Multiple Airlines
Deal found 14/3C$ 1,786
Fri 25/99:30 p.m.
YUL
-
SAI
2 stops48h 30m
Multiple Airlines
Sat 17/107:30 p.m.
SAI
-
YUL
2 stops34h 20m
Multiple Airlines
Deal found 15/3C$ 1,849
Thu 12/118:50 p.m.
YUL
-
SAI
2 stops36h 20m
Multiple Airlines
Thu 3/1211:50 p.m.
SAI
-
YUL
2 stops50h 15m
Multiple Airlines
Deal found 17/3C$ 1,869

Find flight deals from Pierre Elliott Trudeau Intl to Siem Reap

Keep the following information in mind while searching for Pierre Elliott Trudeau Intl to Siem Reap flight deals. Data was last updated 19 March 2026.

Round-trip from

C$ 1,728

One-way from

C$ 1,058
10/5-31/5
  • 10/5-31/5
  • 4 total stops
  • 80h 58m total
  • Montreal to Siem Reap
Search Deals
18/6
  • 18/6
  • 3 total stops
  • 47h 50m total
  • Montreal to Siem Reap
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 19 March 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way
Quickest one-way

MontrealSiem Reap

YUL - SAI

YULSAI

Montreal Pierre Elliott Trudeau Intl

Thu 18/6

7:15 a.m.-6:05 p.m.

3 stops47h 50m

C$ 1,058

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/3

Sorted by cheapest first

Best time to book a flight from Pierre Elliott Trudeau Intl to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Pierre Elliott Trudeau Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Siem Reap
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Related info for your journey

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

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Siem Reap that include hotel bookings?

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

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Siem Reap?

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

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Siem Reap?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
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Pierre Elliott Trudeau Intl to Siem Reap flights

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