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

Departing from Region of Ontario to Ko Samui will take you 26h 40m. The distance from Region of Ontario to Ko Samui is about 14087 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 mm per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Ko Samui, 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 January, when temperatures are typically at their lowest (around 27.0 C).

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.

What is the cheapest time of day to fly from ON to USM?

When flying from Region of Ontario to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

C$ 943+ Cheap Flights from Ontario to Ko Samui

Cheap flight deals from Ontario to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 13 September 2026.

Tue 15/99:35 p.m. -

2 stops24h 45m

Tue 22/98:35 p.m. -

2 stops29h 10m

Deal found 8/9C$ 1,841

Mon 16/116:15 p.m. -

2 stops28h 20m

Mon 23/118:30 a.m. -

3 stops34h 30m

Deal found 10/9C$ 1,872

Tue 3/116:15 p.m. -

2 stops36h 00m

Tue 17/118:30 a.m. -

2 stops43h 45m

Deal found 12/9C$ 1,897

Tue 17/116:15 p.m. -

2 stops28h 40m

Sun 22/119:10 p.m. -

2 stops34h 25m

Deal found 10/9C$ 1,907

Mon 16/119:05 p.m. -

2 stops47h 05m

Fri 20/112:25 p.m. -

2 stops35h 40m

Deal found 10/9C$ 1,909

Tue 17/119:05 p.m. -

2 stops25h 35m

Mon 23/118:30 p.m. -

2 stops29h 35m

Deal found 10/9C$ 1,925

Mon 16/119:05 p.m. -

2 stops47h 05m

Wed 25/117:00 a.m. -

2 stops67h 05m

Deal found 10/9C$ 1,942

Sat 14/119:05 p.m. -

2 stops31h 10m

Tue 24/112:35 p.m. -

2 stops35h 30m

Deal found 10/9C$ 1,961

Fri 13/119:05 p.m. -

2 stops47h 05m

Mon 23/119:10 p.m. -

2 stops28h 55m

Deal found 10/9C$ 1,964

Sun 15/111:20 p.m. -

2 stops33h 35m

Sun 22/119:10 p.m. -

2 stops34h 25m

Deal found 10/9C$ 1,970

Wed 18/119:05 p.m. -

2 stops25h 35m

Tue 24/112:35 p.m. -

2 stops35h 30m

Deal found 10/9C$ 1,981

Thu 22/106:00 p.m. -

2 stops26h 45m

Sat 7/116:05 p.m. -

2 stops38h 25m

Deal found 11/9C$ 1,982

Best flights from Ontario to Ko Samui
Discover carefully curated flight deals from Ontario to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Fri 5/36:15 a.m. -

2 stops39h 05m

Fri 26/39:20 a.m. -

2 stops40h 35m

Deal found 12/9C$ 1,913

Sat 14/119:05 p.m. -

2 stops31h 10m

Tue 24/112:35 p.m. -

2 stops35h 30m

Deal found 10/9C$ 1,961

Tue 2/212:15 a.m. -

2 stops26h 40m

Fri 19/27:10 p.m. -

2 stops37h 10m

Deal found 11/9C$ 2,180

Sun 8/119:05 p.m. -

2 stops25h 35m

Thu 12/112:05 p.m. -

2 stops36h 00m

Deal found 8/9C$ 1,985

Thu 22/106:00 p.m. -

2 stops26h 45m

Sat 7/116:05 p.m. -

2 stops38h 25m

Deal found 12/9C$ 2,096

Sun 15/119:05 p.m. -

2 stops24h 15m

Tue 24/119:30 p.m. -

2 stops28h 35m

Deal found 10/9C$ 2,071

Tue 3/119:20 p.m. -

3 stops58h 30m

Tue 17/118:30 a.m. -

2 stops43h 45m

Deal found 12/9C$ 2,106

Fri 23/106:00 p.m. -

2 stops27h 00m

Sat 7/116:05 p.m. -

2 stops49h 05m

Deal found 10/9C$ 2,137

Mon 16/119:05 p.m. -

2 stops47h 05m

Thu 26/114:25 p.m. -

2 stops33h 40m

Deal found 10/9C$ 2,193

Wed 21/109:00 p.m. -

2 stops34h 15m

Sun 25/103:05 p.m. -

2 stops35h 25m

Deal found 12/9C$ 2,427

Sun 10/18:10 p.m. -

2 stops26h 25m

Sat 30/13:50 p.m. -

2 stops34h 40m

Deal found 8/9C$ 2,560

Sat 19/128:10 p.m. -

2 stops26h 30m

Sat 26/128:30 p.m. -

2 stops30h 00m

Deal found 10/9C$ 3,079

Wed 3/29:50 a.m. -

2 stops47h 15m

Fri 19/21:25 p.m. -

2 stops33h 53m

Deal found 10/9C$ 3,420

Thu 28/17:10 p.m. -

2 stops37h 55m

Sun 14/24:25 p.m. -

2 stops29h 13m

Deal found 12/9C$ 3,509

Wed 3/28:10 p.m. -

3 stops36h 15m

Fri 19/22:30 p.m. -

3 stops36h 00m

Deal found 8/9C$ 3,545

Find flight deals from Ontario to Ko Samui

Round-trip from	C$ 1,706
One-way from	C$ 943

9/1-30/1
4 total stops
58h 55m total
Ontario to Ko Samui

Search Deals

28/10-31/12
3 total stops
50h 50m total
Ontario to Ko Samui

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Wed 28/10

5:55 p.m.-7:45 a.m.

3 stops50h 50m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 943

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 24/10

6:20 p.m.-7:45 a.m.

3 stops50h 25m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,007

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

6:00 p.m.-6:15 p.m.

2 stops37h 15m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,010

TorontoKo Samui

YYZ Toronto Pearson Intl - USM Ko Samui

YYZUSM

Toronto Pearson Intl

Fri 9/10

7:45 p.m.-8:25 p.m.

3 stops37h 40m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,103

TorontoKo Samui

YTZ Toronto Island - USM Ko Samui

YTZUSM

Toronto Island

Sat 10/10

9:15 a.m.-8:30 p.m.

3 stops48h 15m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,219

Quickest round-trip

TorontoKo Samui

YYZ Toronto Pearson Intl - USM Ko Samui

YYZUSM

Toronto Pearson Intl

Sat 26/9

1:45 a.m.-1:45 p.m.

2 stops25h 00m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,276

TorontoKo Samui

YYZ Toronto Pearson Intl - USM Ko Samui

YYZUSM

Toronto Pearson Intl

Fri 5/3

6:15 a.m.-9:20 a.m.

2 stops39h 05m

Ko Samui

Fri 26/3

9:20 a.m.-2:55 p.m.

2 stops40h 35m

C$ 1,913

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 14/11

9:05 p.m.-4:15 p.m.

2 stops31h 10m

Ko Samui

Tue 24/11

2:35 p.m.-2:05 p.m.

2 stops35h 30m

C$ 1,961

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sun 8/11

9:05 p.m.-10:40 a.m.

2 stops25h 35m

Ko Samui

Thu 12/11

2:05 p.m.-2:05 p.m.

2 stops36h 00m

C$ 1,985

TorontoKo Samui

YYZ Toronto Pearson Intl - USM Ko Samui

YYZUSM

Toronto Pearson Intl

Sun 27/9

9:00 p.m.-5:05 p.m.

3 stops33h 05m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 2,033

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/9

Showing 1-10 of 27 resultsSorted by cheapest first

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.

YUL-USM

YYZ-USM

YTZ-USM

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

CAON-USM

YUL-USM

YYZ-USM

YTZ-USM

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

Related info for your journey

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 26h 40m. The distance from Region of Ontario to Ko Samui is about 14087 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

Ko Pha Ngan

Ko Tao

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Alternative routes

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Flights by cabin class

Ko Samui flight routes

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Alternative routes for Ontario to Ko Samui

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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?

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

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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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Cheap flights from Ontario to Ko Samui from C$ 943

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Ko Samui

Cheapest flights from Ontario to Ko SamuiExplore 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 13 September 2026.

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 13 September 2026.

Best flights from Ontario to Ko SamuiDiscover carefully curated flight deals from Ontario to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Discover carefully curated flight deals from Ontario to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Ontario to Ko SamuiDiscover last-minute flight deals from Ontario to Ko Samui. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Ko Samui. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Ontario to Ko SamuiSearch for one-way flight options from Ontario to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Search for one-way flight options from Ontario to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

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Best time to book a flight from Ontario to Ko Samui

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Related info for your journey

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

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

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

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

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

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

Travelling to a place near Ko Samui?

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Alternative routes for Ontario to Ko Samui

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Complete your trip

Complete your trip to Ko Samui by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Thailand

Book a non-stop flight to one of these other cities located in Thailand.

Search flights from Ontario to Ko Samui by cabin class

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Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 13 September 2026.

Ontario and Ko Samui flights

Browse other Ontario and Ko Samui flight options. Last updated on 13 September 2026.

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Ontario to Ko Samui flights

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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 13 September 2026.

Best flights from Ontario to Ko Samui
Discover carefully curated flight deals from Ontario to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Ontario to Ko Samui
Discover last-minute flight deals from Ontario to Ko Samui. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Ontario to Ko Samui
Search for one-way flight options from Ontario to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.