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Cheap flights from Ontario to Ko Samui from C$ 773

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — USM
10 Jul — 17 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Ko Samui
Explore the most affordable flight options available from Ontario to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 June 2026.

Thu 10/912:40 p.m.
YUL
-
USM
2 stops31h 30m
Multiple Airlines
Tue 22/97:45 p.m.
USM
-
YUL
2 stops32h 15m
Multiple Airlines
Deal found 8/6C$ 1,528
Mon 24/86:35 p.m.
YUL
-
USM
2 stops26h 40m
Multiple Airlines
Wed 23/98:50 p.m.
USM
-
YUL
2 stops31h 10m
Multiple Airlines
Deal found 9/6C$ 1,606
Mon 7/91:50 p.m.
YYZ
-
USM
2 stops30h 20m
Multiple Airlines
Thu 10/99:00 p.m.
USM
-
YYZ
2 stops30h 10m
Multiple Airlines
Deal found 9/6C$ 1,658
Sun 13/91:25 p.m.
YYZ
-
USM
2 stops32h 10m
Multiple Airlines
Wed 30/97:00 p.m.
USM
-
YYZ
2 stops35h 15m
Multiple Airlines
Deal found 6/6C$ 1,827
Sat 11/77:55 p.m.
YYZ
-
USM
2 stops25h 20m
Multiple Airlines
Sat 18/76:55 p.m.
USM
-
YYZ
2 stops33h 45m
Multiple Airlines
Deal found 9/6C$ 1,845
Thu 1/1012:40 p.m.
YUL
-
USM
2 stops31h 30m
Multiple Airlines
Sun 1/117:10 p.m.
USM
-
YUL
2 stops33h 53m
Multiple Airlines
Deal found 9/6C$ 1,846
Fri 23/106:00 p.m.
YUL
-
USM
2 stops27h 00m
Multiple Airlines
Sat 7/114:25 p.m.
USM
-
YUL
2 stops36h 38m
Multiple Airlines
Deal found 7/6C$ 1,928
Fri 4/93:45 p.m.
YYZ
-
USM
2 stops28h 25m
Multiple Airlines
Sat 19/97:50 a.m.
USM
-
YYZ
2 stops41h 10m
Multiple Airlines
Deal found 6/6C$ 1,976
Mon 17/86:35 p.m.
YUL
-
USM
2 stops26h 10m
Multiple Airlines
Mon 24/87:50 p.m.
USM
-
YUL
2 stops32h 10m
Multiple Airlines
Deal found 10/6C$ 2,011
Mon 17/85:30 p.m.
YUL
-
USM
2 stops27h 15m
Multiple Airlines
Tue 25/89:00 p.m.
USM
-
YUL
2 stops31h 00m
Multiple Airlines
Deal found 10/6C$ 2,016
Tue 18/86:35 p.m.
YUL
-
USM
2 stops26h 10m
Multiple Airlines
Tue 25/89:00 p.m.
USM
-
YUL
2 stops31h 00m
Multiple Airlines
Deal found 10/6C$ 2,048
Thu 31/128:10 p.m.
YYZ
-
USM
2 stops36h 05m
Multiple Airlines
Sat 30/17:10 p.m.
USM
-
YYZ
2 stops33h 35m
Multiple Airlines
Deal found 6/6C$ 2,061

Find flight deals from Ontario to Ko Samui

Keep the following information in mind while searching for Ontario to Ko Samui flight deals. Data was last updated 10 June 2026.

Round-trip from

C$ 1,606

One-way from

C$ 773
24/8-23/9
  • 24/8-23/9
  • 4 total stops
  • 57h 50m total
  • Ontario to Ko Samui
Search Deals
14/6
  • 14/6
  • 2 total stops
  • 32h 45m total
  • Ontario to Ko Samui
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Ko Samui 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 10 June 2026.
Use the filters below to find and compare flights from Ontario to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Mon 7/9

1:50 p.m.-7:10 a.m.

2 stops30h 20m

Ko Samui

Thu 10/9

9:00 p.m.-4:10 p.m.

2 stops30h 10m

C$ 1,658

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Fri 4/9

3:45 p.m.-7:10 a.m.

2 stops28h 25m

Ko Samui

Sat 19/9

7:50 a.m.-2:00 p.m.

2 stops41h 10m

C$ 1,976

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

8:50 p.m.-3:35 p.m.

2 stops30h 45m

Ko Samui

Mon 16/11

9:10 p.m.-2:05 p.m.

2 stops28h 55m

C$ 2,092

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

9:35 p.m.-8:10 a.m.

2 stops47h 35m

Ko Samui

Sat 7/11

7:00 p.m.-2:05 p.m.

2 stops55h 05m

C$ 2,160

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 25/7

10:10 a.m.-8:35 a.m.

3 stops35h 25m

Ko Samui

Thu 6/8

7:45 p.m.-7:15 a.m.

3 stops46h 30m

C$ 2,478

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Fri 23/10

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

3 stops30h 25m

Ko Samui

Sat 7/11

10:00 a.m.-12:33 a.m.

3 stops26h 33m

C$ 2,488

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

9:55 p.m.-1:45 p.m.

3 stops28h 50m

Ko Samui

Thu 10/9

8:45 a.m.-12:36 a.m.

3 stops26h 51m

C$ 2,543

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

10:15 a.m.-9:10 p.m.

2 stops47h 55m

Ko Samui

Thu 10/9

8:00 a.m.-8:00 a.m.

2 stops35h 00m

C$ 2,559
Quickest round-trip

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Thu 22/10

10:30 p.m.-1:10 p.m.

3 stops27h 40m

Ko Samui

Sat 7/11

10:00 a.m.-1:53 a.m.

3 stops27h 53m

C$ 2,560

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Sat 12/9

1:50 a.m.-7:40 p.m.

1 stop30h 50m

Ko Samui

Wed 30/9

6:00 a.m.-5:45 a.m.

2 stops34h 45m

C$ 2,672

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 26 resultsSorted by cheapest first
1
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Best time to book a flight from Ontario to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui 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 Ko Samui
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly into for flights to Ko Samui from Ontario?

    Ko Samui (USM) is the airport you will fly into if you book a flight from Ontario to Ko Samui. It is only a 3.3 km journey from Ko Samui (USM) to Ko Samui’s city centre.

  • How long is the flight from Region of Ontario to Ko Samui?

    Departing from Region of Ontario to Ko Samui will take you 30h 45m. The distance from Region of Ontario to Ko Samui is about 13858 km. This flight may include one or multiple stops.

  • What are the most popular routes from Region of Ontario to Ko Samui?

    The most popular route from Region of Ontario to Ko Samui is Montreal Pierre Elliott Trudeau Intl - Ko Samui. You may also consider Toronto Pearson Intl - Ko Samui or Toronto Island - Ko Samui.

  • Can I find deals for flights from Ontario to Ko Samui that include hotel bookings?

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

  • How can I find direct flights from Ontario to Ko Samui?

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

  • Can I find deals for business class flights from Ontario to Ko Samui?

    Yes. Cheapflights offers flight deals from Ontario to Ko Samui 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

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

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Alternative routes for Ontario to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
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Calgary to Chiang Mai flights
Winnipeg to Don Mueang Intl flights
Hamilton to Suvarnabhumi flights
Fredericton to Suvarnabhumi flights
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Ko Samui?

Cheapflights makes it easy to find Ontario to Ko Samui flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Ko Samui?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Ko Samui by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Ko Samui with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Ko Samui flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Ko Samui become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ko Samui from Ontario today and book when prices fit your budget.

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