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Cheap flights from Toronto to Ko Samui from C$ 837

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.
YTO — USM
15 Apr — 22 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Toronto to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Toronto to Ko Samui
Explore the most affordable flight options available from Toronto to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 March 2026.

Sat 22/88:00 p.m.
YYZ
-
USM
2 stops25h 15m
Multiple Airlines
Sun 11/107:45 p.m.
USM
-
YYZ
2 stops31h 08m
Multiple Airlines
Deal found 15/3C$ 1,565
Fri 22/510:25 p.m.
YYZ
-
USM
2 stops46h 50m
Multiple Airlines
Fri 12/67:45 p.m.
USM
-
YYZ
2 stops30h 23m
Multiple Airlines
Deal found 14/3C$ 1,840
Sat 23/57:00 p.m.
YYZ
-
USM
2 stops26h 15m
Multiple Airlines
Sat 13/67:45 p.m.
USM
-
YYZ
2 stops30h 41m
Multiple Airlines
Deal found 14/3C$ 1,841
Wed 16/91:45 a.m.
YYZ
-
USM
2 stops25h 00m
EVA Air
Mon 21/99:00 p.m.
USM
-
YYZ
2 stops35h 20m
EVA Air
Deal found 14/3C$ 1,863
Wed 6/57:30 p.m.
YYZ
-
USM
2 stops26h 05m
Multiple Airlines
Sat 16/51:30 p.m.
USM
-
YYZ
2 stops36h 38m
Multiple Airlines
Deal found 15/3C$ 1,869
Sun 12/44:40 p.m.
YYZ
-
USM
2 stops38h 35m
Multiple Airlines
Fri 12/68:50 p.m.
USM
-
YYZ
2 stops27h 20m
Multiple Airlines
Deal found 14/3C$ 1,978
Sun 12/46:45 p.m.
YYZ
-
USM
2 stops31h 25m
Multiple Airlines
Sat 13/67:45 p.m.
USM
-
YYZ
2 stops31h 47m
Multiple Airlines
Deal found 14/3C$ 1,988
Wed 29/41:40 p.m.
YYZ
-
USM
2 stops44h 10m
Multiple Airlines
Fri 8/56:00 a.m.
USM
-
YYZ
2 stops37h 55m
Multiple Airlines
Deal found 15/3C$ 2,055
Sat 8/88:00 p.m.
YYZ
-
USM
2 stops25h 15m
Multiple Airlines
Sun 30/88:50 p.m.
USM
-
YYZ
2 stops30h 04m
Multiple Airlines
Deal found 13/3C$ 2,151
Tue 28/48:00 a.m.
YTZ
-
USM
3 stops36h 30m
Multiple Airlines
Tue 5/511:05 a.m.
USM
-
YTZ
3 stops35h 47m
Multiple Airlines
Deal found 14/3C$ 3,486

Find flight deals from Toronto to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 March 2026.

Round-trip from

C$ 1,565

One-way from

C$ 837
22/8-11/10
  • 22/8-11/10
  • 4 total stops
  • 56h 23m total
  • Toronto to Ko Samui
Search Deals
23/4
  • 23/4
  • 3 total stops
  • 55h 40m total
  • Toronto to Ko Samui
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto 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 16 March 2026.
Use the filters below to find and compare flights from Toronto 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

Thu 21/5

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

2 stops25h 00m

Ko Samui

Sat 13/6

8:45 a.m.-9:35 p.m.

2 stops23h 50m

C$ 2,294
Quickest round-trip

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Wed 6/5

10:35 a.m.-7:40 p.m.

1 stop22h 05m

Ko Samui

Sat 16/5

11:55 a.m.-10:10 p.m.

1 stop21h 15m

C$ 2,471

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Tue 28/4

2:55 p.m.-9:35 p.m.

2 stops43h 40m

Ko Samui

Tue 5/5

7:00 p.m.-9:30 a.m.

2 stops49h 30m

C$ 2,508

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Sat 11/4

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

1 stop30h 50m

Ko Samui

Sun 26/4

11:55 a.m.-5:55 p.m.

2 stops41h 00m

C$ 2,705

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Sat 23/5

10:35 a.m.-7:40 p.m.

1 stop22h 05m

Ko Samui

Fri 12/6

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

2 stops23h 55m

C$ 2,871

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Thu 26/3

2:30 p.m.-3:40 p.m.

2 stops38h 10m

Ko Samui

Fri 3/4

1:30 p.m.-8:55 a.m.

2 stops30h 25m

C$ 2,885

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Sat 8/8

3:45 p.m.-7:40 p.m.

1 stop40h 55m

Ko Samui

Sun 30/8

11:55 a.m.-10:10 p.m.

1 stop21h 15m

C$ 3,055

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Tue 30/6

9:00 p.m.-9:20 a.m.

2 stops25h 20m

Ko Samui

Sat 11/7

8:50 p.m.-3:00 p.m.

2 stops29h 10m

C$ 3,143

TorontoKo Samui

YYZ - USM

YYZUSM

Toronto Pearson Intl

Wed 6/5

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

3 stops37h 35m

Ko Samui

Sat 16/5

3:50 p.m.-3:00 p.m.

3 stops34h 10m

C$ 3,179

TorontoKo Samui

YTZ - USM

YTZUSM

Toronto Island

Tue 28/4

8:00 a.m.-7:30 a.m.

3 stops36h 30m

Ko Samui

Tue 5/5

11:05 a.m.-11:52 a.m.

3 stops35h 47m

C$ 3,486

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Toronto to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Toronto 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 Toronto to Ko Samui

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

Find hourly flight availability from Toronto 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 16 March 2026.

When flying from Toronto to Ko Samui, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 19% versus a flight in the morning.

What is the cheapest day to fly from Toronto to Ko Samui?

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

Travelers seeking maximum savings on their Toronto 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.

How often are flights from Toronto to Ko Samui delayed?

About 21% of weekly flights between Toronto and Ko Samui have experienced delays in the past year, with the average delay time being 122 minutes.

What is the most punctual flight time for Toronto to Ko Samui flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Toronto to Ko Samui flights?

Over the past year, Delta has had the lowest number of delays on this route, with just 12% of flights being delayed.

Related info for your journey

Find useful and relevant information for your journey from Toronto 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 Toronto?

    Located just 3.3 km from the city centre, Ko Samui is the airport most travellers will use when flying to Ko Samui from Toronto. Booking flights from Toronto to Ko Samui (USM) should be relatively easy as there are 0 daily inbound flights from Toronto from 1 airline.

  • What is the cheapest airline to fly from Toronto to Ko Samui round-trip?

    Cheapflights users have booked flights from Toronto to Ko Samui round-trip from C$ 1,684.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Toronto 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Toronto to Ko Samui

Discover the top airline that operate flights from Toronto 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 16 March 2026.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapestC$ 1,684AverageC$ 1,992FlexibilityNo 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 Toronto to Ko Samui?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ko Samui from Toronto today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Toronto to Ko Samui for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Ko Samui from Toronto shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Toronto to Ko Samui and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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