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Cheap flights from Ontario to Ko Samui from C$ 830

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — USM
12 Apr — 19 Apr1
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 13 March 2026.

Wed 7/107:00 p.m.
YYZ
-
USM
2 stops28h 45m
Multiple Airlines
Tue 10/117:35 p.m.
USM
-
YYZ
2 stops32h 54m
Multiple Airlines
Deal found 9/3C$ 1,441
Mon 5/106:30 p.m.
YYZ
-
USM
2 stops27h 05m
Multiple Airlines
Mon 9/119:10 p.m.
USM
-
YYZ
2 stops31h 19m
Multiple Airlines
Deal found 9/3C$ 1,443
Mon 5/108:00 p.m.
YYZ
-
USM
2 stops25h 15m
Multiple Airlines
Tue 10/118:45 p.m.
USM
-
YYZ
2 stops30h 52m
Multiple Airlines
Deal found 9/3C$ 1,477
Mon 5/108:00 p.m.
YYZ
-
USM
2 stops28h 05m
Multiple Airlines
Wed 11/117:45 p.m.
USM
-
YYZ
2 stops32h 44m
Multiple Airlines
Deal found 9/3C$ 1,510
Sat 3/106:30 p.m.
YYZ
-
USM
2 stops27h 05m
Multiple Airlines
Sat 14/116:15 p.m.
USM
-
YYZ
2 stops37h 10m
Multiple Airlines
Deal found 9/3C$ 1,543
Mon 27/46:45 p.m.
YYZ
-
USM
2 stops26h 30m
Multiple Airlines
Wed 6/56:15 p.m.
USM
-
YYZ
2 stops31h 53m
Multiple Airlines
Deal found 8/3C$ 1,562
Mon 5/107:00 p.m.
YYZ
-
USM
2 stops26h 35m
Multiple Airlines
Sat 14/116:15 p.m.
USM
-
YYZ
2 stops37h 10m
Multiple Airlines
Deal found 9/3C$ 1,563
Sun 4/106:30 p.m.
YYZ
-
USM
2 stops31h 40m
Multiple Airlines
Tue 10/119:10 p.m.
USM
-
YYZ
2 stops30h 27m
Multiple Airlines
Deal found 9/3C$ 1,581
Tue 28/46:45 p.m.
YYZ
-
USM
2 stops26h 00m
Multiple Airlines
Wed 6/57:45 p.m.
USM
-
YYZ
2 stops31h 11m
Multiple Airlines
Deal found 8/3C$ 1,593
Mon 5/108:00 p.m.
YYZ
-
USM
2 stops25h 15m
Multiple Airlines
Sun 8/118:20 p.m.
USM
-
YYZ
2 stops32h 09m
Multiple Airlines
Deal found 9/3C$ 1,615
Wed 7/107:00 p.m.
YYZ
-
USM
2 stops26h 15m
Multiple Airlines
Sun 8/117:35 p.m.
USM
-
YYZ
2 stops32h 54m
Multiple Airlines
Deal found 9/3C$ 1,616
Sun 4/106:30 p.m.
YYZ
-
USM
2 stops36h 45m
Multiple Airlines
Sat 14/113:50 p.m.
USM
-
YYZ
2 stops39h 35m
Multiple Airlines
Deal found 9/3C$ 1,622

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 13 March 2026.

Round-trip from

C$ 1,562

One-way from

C$ 830
27/4-6/5
  • 27/4-6/5
  • 4 total stops
  • 58h 23m total
  • Ontario to Ko Samui
Search Deals
23/4
  • 23/4
  • 3 total stops
  • 55h 40m 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 13 March 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

Sat 25/4

1:45 a.m.-3:10 p.m.

2 stops26h 25m

Ko Samui

Thu 7/5

9:00 p.m.-9:35 p.m.

2 stops35h 35m

C$ 1,865

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Fri 10/4

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

2 stops26h 30m

Ko Samui

Fri 17/4

9:00 p.m.-2:45 p.m.

2 stops52h 45m

C$ 2,018

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Sat 16/5

7:30 p.m.-8:35 a.m.

2 stops26h 05m

Ko Samui

Fri 5/6

10:05 a.m.-6:10 a.m.

3 stops31h 05m

C$ 2,155

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Tue 9/6

6:00 p.m.-1:10 p.m.

2 stops32h 10m

Ko Samui

Wed 8/7

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

3 stops33h 35m

C$ 2,235

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Thu 23/4

10:15 a.m.-4:35 p.m.

2 stops43h 20m

Ko Samui

Thu 30/4

5:50 p.m.-8:00 a.m.

2 stops49h 10m

C$ 2,294

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sun 29/3

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

2 stops47h 55m

Ko Samui

Thu 23/4

5:50 p.m.-8:00 a.m.

2 stops25h 10m

C$ 2,370

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Mon 23/3

2:30 p.m.-5:40 p.m.

2 stops40h 10m

Ko Samui

Tue 31/3

7:50 p.m.-8:55 a.m.

2 stops48h 05m

C$ 2,401

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Mon 23/3

2:30 p.m.-5:40 p.m.

2 stops40h 10m

Ko Samui

Thu 2/4

7:50 p.m.-8:55 a.m.

2 stops48h 05m

C$ 2,401

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Sun 22/3

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

2 stops54h 15m

Ko Samui

Thu 2/4

7:50 p.m.-9:30 a.m.

2 stops48h 40m

C$ 2,464

MontrealKo Samui

YUL - USM

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sun 29/3

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

2 stops47h 55m

Ko Samui

Tue 28/4

5:25 p.m.-8:00 a.m.

2 stops25h 35m

C$ 2,490

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 31 resultsSorted by cheapest first
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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

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 13 March 2026.

It’s typically best to fly out from Region of Ontario to Ko Samui in the afternoon. Doing so could potentially save you 15% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Region of Ontario to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Ko Samui. Price data was last updated on 30 March 2025.

Travelers seeking maximum savings on their Region of Ontario to Ko Samui flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 26h 25m. 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 Toronto Pearson Intl - Ko Samui. You may also consider Montreal Pierre Elliott Trudeau 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.
Vancouver Intl to Suvarnabhumi flights
Pearson Intl to Suvarnabhumi flights
Pierre Elliott Trudeau Intl to Suvarnabhumi flights
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Abbotsford to Suvarnabhumi flights
Vancouver Intl to Don Mueang Intl flights
Edmonton to Suvarnabhumi flights
Pearson Intl to Don Mueang Intl flights
Calgary to Suvarnabhumi flights
Québec City to Suvarnabhumi flights
Vancouver Intl to Chiang Mai flights
Pierre Elliott Trudeau Intl to Don Mueang Intl flights
Vancouver Intl to Phuket City flights
St. John's to Suvarnabhumi flights
Ottawa to Suvarnabhumi flights
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Pierre Elliott Trudeau Intl to Phuket City flights
Calgary to Don Mueang Intl flights
Pearson Intl to Phuket City flights
Kelowna to Suvarnabhumi flights
Vancouver Intl to Ko Samui flights
Hamilton to Suvarnabhumi flights
Edmonton to Don Mueang Intl flights
Victoria to Suvarnabhumi flights
Regina to Suvarnabhumi flights
Halifax to Suvarnabhumi flights
Moncton to Suvarnabhumi flights
Prince George to Suvarnabhumi flights
Pearson Intl to Chiang Mai flights
Saskatoon to Suvarnabhumi flights
Calgary to Phuket City flights
Edmonton to Phuket City flights
Pierre Elliott Trudeau Intl to Chiang Mai flights
Pearson Intl to Krabi flights
Québec City to Phuket City flights
Ottawa to Phuket City flights
Vancouver Intl to Krabi flights
Winnipeg to Don Mueang Intl flights
London to Suvarnabhumi flights
Ottawa to Chiang Mai flights
Calgary to Chiang Mai flights
Pearson Intl to Ko Samui flights
Edmonton to Krabi flights
Fredericton to Suvarnabhumi flights
Halifax to Don Mueang Intl flights
Pierre Elliott Trudeau Intl to Ko Samui flights
Kelowna to Phuket City flights

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 13 March 2026.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapestC$ 1,862AverageC$ 1,975FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

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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