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Cheap flights from Ontario to Ko Samui from C$ 1,590

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — USM
5 Aug — 12 Aug1
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 31 July 2025.

Round-trip from

C$ 1,590
30/8-6/9
  • 30/8-6/9
  • 4 total stops
  • 91h 36m 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 31 July 2025.

Sat 1/1110:35 p.m.YYZ - USM
2 stops57h 15mMultiple Airlines
Wed 1/47:25 p.m.USM - YYZ
2 stops35h 33mMultiple Airlines
Deal found 29/7C$ 1,724
Tue 4/114:50 p.m.YUL - USM
2 stops40h 15mSWISS
Mon 17/119:20 a.m.USM - YUL
2 stops41h 55mSWISS
Deal found 28/7C$ 1,929
Mon 3/118:10 p.m.YUL - USM
2 stops52h 55mLufthansa
Thu 30/41:30 p.m.USM - YUL
2 stops40h 20mLufthansa
Deal found 30/7C$ 1,947
Mon 3/118:10 p.m.YUL - USM
2 stops52h 55mMultiple Airlines
Mon 17/1110:00 a.m.USM - YUL
2 stops41h 15mMultiple Airlines
Deal found 28/7C$ 1,978
Thu 20/117:05 p.m.YUL - USM
2 stops29h 30mAir France
Mon 24/114:25 p.m.USM - YUL
2 stops31h 50mAir France
Deal found 30/7C$ 1,991
Thu 30/1010:15 p.m.YYZ - USM
2 stops35h 50mAir France
Mon 3/118:30 a.m.USM - YYZ
2 stops43h 55mAir France
Deal found 29/7C$ 2,077
Thu 30/102:55 p.m.YYZ - USM
2 stops54h 15mEmirates
Mon 3/113:35 p.m.USM - YYZ
2 stops29h 15mEmirates
Deal found 30/7C$ 2,134
Fri 31/101:20 a.m.YYZ - USM
2 stops27h 20mEVA Air
Wed 5/119:20 a.m.USM - YYZ
2 stops23h 00mEVA Air
Deal found 31/7C$ 2,170
Tue 29/71:50 a.m.YYZ - USM
1 stop29h 45mCathay Pacific
Wed 6/810:55 a.m.USM - YYZ
1 stop29h 50mCathay Pacific
Deal found 29/7C$ 3,364
Fri 1/89:35 p.m.YUL - USM
2 stops58h 00mQatar Airways
Fri 15/87:00 p.m.USM - YUL
2 stops54h 45mQatar Airways
Deal found 30/7C$ 4,107
Fri 1/86:45 a.m.YUL - USM
2 stops48h 50mCathay Pacific
Fri 15/810:55 a.m.USM - YUL
2 stops48h 32mCathay Pacific
Deal found 30/7C$ 4,741
Sat 20/129:25 p.m.YUL - USM
3 stops54h 15mAustrian Airlines
Tue 6/18:30 p.m.USM - YUL
3 stops27h 15mAustrian Airlines
Deal found 30/7C$ 7,282

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 31 July 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

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Sat 1/11

10:35 p.m.-6:50 p.m.

2 stops57h 15m

Ko Samui

Wed 1/4

7:25 p.m.-7:58 p.m.

2 stops35h 33m

C$ 1,724

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

8:10 p.m.-1:05 p.m.

2 stops52h 55m

Ko Samui

Thu 30/4

1:30 p.m.-6:50 p.m.

2 stops40h 20m

C$ 1,947

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

7:05 p.m.-12:35 p.m.

2 stops29h 30m

Ko Samui

Mon 24/11

4:25 p.m.-12:15 p.m.

2 stops31h 50m

C$ 1,984

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Thu 30/10

10:15 p.m.-9:05 p.m.

2 stops35h 50m

Ko Samui

Mon 3/11

8:30 a.m.-4:25 p.m.

2 stops43h 55m

C$ 2,077

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Thu 30/10

2:55 p.m.-8:10 a.m.

2 stops54h 15m

Ko Samui

Mon 3/11

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

2 stops29h 15m

C$ 2,134

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Fri 31/10

1:20 a.m.-3:40 p.m.

2 stops27h 20m

Ko Samui

Wed 5/11

9:20 a.m.-8:20 p.m.

2 stops23h 00m

C$ 2,170

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

8:10 p.m.-2:55 p.m.

3 stops30h 45m

Ko Samui

Thu 30/4

9:15 a.m.-12:41 a.m.

3 stops26h 26m

C$ 2,854

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

8:00 p.m.-2:55 p.m.

3 stops54h 55m

Ko Samui

Thu 30/4

4:25 p.m.-3:00 p.m.

2 stops33h 35m

C$ 3,815

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Tue 20/1

2:30 p.m.-1:50 p.m.

2 stops35h 20m

Ko Samui

Mon 2/2

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

2 stops47h 45m

C$ 5,731

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 20/12

9:25 p.m.-3:40 p.m.

3 stops54h 15m

Ko Samui

Tue 6/1

8:30 p.m.-11:45 a.m.

3 stops27h 15m

C$ 7,282

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 20 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 31 July 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.

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 31 July 2025.
See what other customers who have flown with EVA Air,Cathay Pacific, andEtihad Airways from Ontario to Ko Samui have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Cathay Pacific
7.6
Good
949 reviews
EVA Air
8.4
Very good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Etihad Airways
7.4
Good
1,230 reviews
EVA Air
8.4
Very good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Philippine Airlines
7.2
Good
894 reviews
EVA Air
8.4
Very good
1,220 reviews
Check prices

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 cheapest airlines to fly from Region of Ontario to Ko Samui one-way?

    One-way options have recently been found by users for as low as C$ 3,684 on Etihad Airways. Other airlines that offer cheap prices include Philippine Airlines from C$ 4,145 and Cathay Pacific from C$ 4,413 one-way.

  • 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 Tao
Ko Pha Ngan

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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 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapestC$ 1,964AverageC$ 2,085FlexibilityNo 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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