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Cheap flights from Ontario to Ko Samui from C$ 897

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 17/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — USM
7 Apr — 14 Apr1
1 adult

Cheap 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 2 April 2025.

Round-trip from

C$ 2,267
Qatar Airways
  • Qatar Airways
  • 29/4-6/5
  • 4 total stops
  • 67h 55m total
  • Ontario to Ko Samui
Search Deals

Find flight deals from Ontario to Ko Samui

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 2 April 2025.

Tue 29/49:35 p.m.YUL - USM
2 stops26h 30mMultiple Airlines
Tue 6/58:20 a.m.USM - YUL
2 stops41h 25mMultiple Airlines
Deal found 1/4C$ 2,267
Thu 1/53:40 p.m.YYZ - USM
2 stops28h 55mMultiple Airlines
Thu 8/55:55 p.m.USM - YYZ
2 stops49h 35mMultiple Airlines
Deal found 1/4C$ 2,292
Sat 5/710:30 p.m.YUL - USM
2 stops27h 15mAir France
Sun 20/710:55 a.m.USM - YUL
2 stops36h 10mAir France
Deal found 31/3C$ 2,579
Wed 2/710:50 p.m.YUL - USM
2 stops31h 55mLufthansa
Tue 22/71:30 p.m.USM - YUL
2 stops42h 30mLufthansa
Deal found 31/3C$ 2,814
Tue 8/74:40 p.m.YUL - USM
2 stops41h 30mSWISS
Wed 16/710:05 a.m.USM - YUL
2 stops39h 55mSWISS
Deal found 31/3C$ 3,030
Sun 20/411:15 a.m.YUL - USM
3 stops47h 20mCathay Pacific
Sun 18/510:05 a.m.USM - YUL
3 stops32h 03mCathay Pacific
Deal found 1/4C$ 3,185
Thu 1/53:30 p.m.YYZ - USM
1 stop40h 05mCathay Pacific
Thu 8/510:55 a.m.USM - YYZ
2 stops31h 04mCathay Pacific
Deal found 1/4C$ 3,239
Fri 1/89:35 p.m.YUL - USM
2 stops25h 55mQatar Airways
Fri 15/811:25 a.m.USM - YUL
2 stops62h 20mQatar Airways
Deal found 1/4C$ 3,341

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 2 April 2025.
Use the filters below to find and compare flights from Ontario to Ko Samui that are best for you.

Fly from

Ontario

Fly to

Ko Samui

Route

Depart

Return

Price

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Tue 29/4

9:35 p.m.-11:05 a.m.

2 stops26h 30m

Ko Samui

Tue 6/5

8:20 a.m.-2:45 p.m.

2 stops41h 25m

C$ 2,267

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Thu 1/5

3:40 p.m.-7:35 a.m.

2 stops28h 55m

Ko Samui

Thu 8/5

5:55 p.m.-8:30 a.m.

2 stops49h 35m

C$ 2,292

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 5/7

10:30 p.m.-12:45 p.m.

2 stops27h 15m

Ko Samui

Sun 20/7

10:55 a.m.-12:05 p.m.

2 stops36h 10m

C$ 2,579

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Wed 2/7

10:50 p.m.-5:45 p.m.

2 stops31h 55m

Ko Samui

Tue 22/7

1:30 p.m.-9:00 p.m.

2 stops42h 30m

C$ 2,814

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Tue 8/7

4:40 p.m.-9:10 p.m.

2 stops41h 30m

Ko Samui

Wed 16/7

10:05 a.m.-3:00 p.m.

2 stops39h 55m

C$ 3,030

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sun 20/4

11:15 a.m.-9:35 p.m.

3 stops47h 20m

Ko Samui

Sun 18/5

10:05 a.m.-7:08 a.m.

3 stops32h 03m

C$ 3,185

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Thu 1/5

3:30 p.m.-6:35 p.m.

1 stop40h 05m

Ko Samui

Thu 8/5

10:55 a.m.-6:59 a.m.

2 stops31h 04m

C$ 3,239

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Fri 1/8

9:35 p.m.-10:30 a.m.

2 stops25h 55m

Ko Samui

Fri 15/8

11:25 a.m.-2:45 p.m.

2 stops62h 20m

C$ 3,341

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 17/5

6:45 p.m.-9:35 p.m.

3 stops39h 50m

C$ 897

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 17/5

7:00 p.m.-12:45 p.m.

2 stops30h 45m

C$ 1,242

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/4

Showing 1-10 of 14 results
1
2

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

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

Find hourly flight availability from Ontario to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 April 2025.

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.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

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.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. 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 Ko Samui. Reviews last updated 2 April 2025.
EVA Air
8.4
Very good
1,170 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,170 reviews
EVA Air
8.4
Very good
1,170 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Cathay Pacific
7.5
Good
841 reviews
EVA Air
8.4
Very good
1,170 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
SWISS
7.5
Good
1,572 reviews
EVA Air
8.4
Very good
1,170 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Qatar Airways
7.4
Good
3,540 reviews
EVA Air
8.4
Very good
1,170 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Air France
7.4
Good
1,427 reviews
EVA Air
8.4
Very good
1,170 reviews
Check prices

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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.

  • 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 Ontario?

Book flights to Ontario 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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Top airline flying from Ontario to Ko Samui

Discover the top airline that operate flights from Ontario to Ko Samui. 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 2 April 2025.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapestC$ 2,152AverageC$ 2,555FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

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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?

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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