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 is the cheapest time of day to fly from YUL to USM?

When flying from Montreal Pierre Elliott Trudeau Intl Airport 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 Montreal Pierre Elliott Trudeau Intl?

Located just 3.3 km from the city centre, Ko Samui is the airport most travellers will use when flying to Ko Samui from Montreal Pierre Elliott Trudeau Intl. Booking flights from Montreal Pierre Elliott Trudeau Intl to Ko Samui (USM) should be relatively easy as there are 0 daily inbound flights from Montreal Pierre Elliott Trudeau Intl from 0 different airlines.

Can I find deals for flights from Pierre Elliott Trudeau Intl to Ko Samui that include hotel bookings?

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

How can I find direct flights from Pierre Elliott Trudeau Intl to Ko Samui?

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

Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Ko Samui?

Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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$ 1,046+ Cheap Flights from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui

Cheap flight deals from Pierre Elliott Trudeau Intl to Ko Samui

Enter your travel dates to find the best prices.

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Cheapest flights from Pierre Elliott Trudeau Intl to Ko Samui
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Sun 22/119:05 p.m. -

2 stops50h 50m

Sun 29/115:40 p.m. -

2 stops32h 25m

Deal found 25/10C$ 1,867

Sat 21/119:05 p.m. -

2 stops49h 35m

Wed 25/113:05 p.m. -

2 stops35h 00m

Deal found 21/10C$ 1,980

Mon 30/119:05 p.m. -

2 stops47h 05m

Tue 30/32:30 p.m. -

2 stops59h 15m

Deal found 21/10C$ 2,045

Mon 2/119:05 p.m. -

2 stops50h 50m

Thu 5/119:10 p.m. -

2 stops28h 55m

Deal found 21/10C$ 2,196

Find flight deals from Pierre Elliott Trudeau Intl to Ko Samui

Round-trip from	C$ 1,643
One-way from	C$ 1,046

29/3-7/4
4 total stops
75h 50m total
Montreal to Ko Samui

Search Deals

22/11-31/12
2 total stops
39h 05m total
Montreal to Ko Samui

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui that are best for you.

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Route

Depart

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Price

Cheapest round-trip

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sun 22/11

7:30 a.m.-10:35 a.m.

2 stops39h 05m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,046

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sun 6/12

5:55 p.m.-8:05 a.m.

3 stops50h 10m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,140

Quickest round-trip

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sun 8/11

6:50 p.m.-3:35 p.m.

3 stops32h 45m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,158

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Wed 9/12

7:30 a.m.-6:15 p.m.

2 stops46h 45m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,438

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Mon 29/3

9:35 p.m.-6:30 p.m.

2 stops33h 55m

Ko Samui

Wed 7/4

7:50 a.m.-2:45 p.m.

2 stops41h 55m

C$ 1,643

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 26/12

8:10 p.m.-8:25 a.m.

3 stops48h 15m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,786

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Sat 26/12

8:00 p.m.-7:35 p.m.

2 stops35h 35m

Ko Samui

Wed 31/12

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

Nonstop0h 00m

C$ 1,941

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Wed 3/2

9:05 p.m.-1:50 p.m.

2 stops28h 45m

Ko Samui

Fri 12/2

3:50 p.m.-2:05 p.m.

2 stops58h 15m

C$ 1,957

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Thu 4/2

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

2 stops25h 35m

Ko Samui

Mon 15/2

7:00 p.m.-2:05 p.m.

2 stops55h 05m

C$ 1,957

MontrealKo Samui

YUL Montreal Pierre Elliott Trudeau Intl - USM Ko Samui

YULUSM

Montreal Pierre Elliott Trudeau Intl

Mon 1/2

9:05 p.m.-11:55 a.m.

2 stops26h 50m

Ko Samui

Thu 18/2

3:50 p.m.-2:05 p.m.

2 stops58h 15m

C$ 1,957

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/10

Showing 1-10 of 15 resultsSorted by cheapest first

Best time to book a flight from Pierre Elliott Trudeau Intl to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Pierre Elliott Trudeau Intl with our price prediction graph.

YUL-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 Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui

How often are flights from Montreal to Ko Samui delayed?

About 27% of weekly flights between Montreal and Ko Samui have experienced delays in the past year, with the average delay time being 117 minutes.

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

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

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

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

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

Over the past year, Air Canada has had the lowest number of delays on this route, with just 27% of flights being delayed.

Related info for your journey

What airport do you fly into for flights to Ko Samui from Montreal Pierre Elliott Trudeau Intl?
Located just 3.3 km from the city centre, Ko Samui is the airport most travellers will use when flying to Ko Samui from Montreal Pierre Elliott Trudeau Intl. Booking flights from Montreal Pierre Elliott Trudeau Intl to Ko Samui (USM) should be relatively easy as there are 0 daily inbound flights from Montreal Pierre Elliott Trudeau Intl from 0 different airlines.
How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui?
Departing from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui will take you 28h 45m. The distance from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui is about 13858 km.
Can I find deals for flights from Pierre Elliott Trudeau Intl to Ko Samui that include hotel bookings?
Yes. In addition to deals on Pierre Elliott Trudeau Intl to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Pierre Elliott Trudeau Intl to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Ko Samui.
Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Ko Samui?
Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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.

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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui from C$ 1,046

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 22/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Pierre Elliott Trudeau Intl to Ko Samui

Cheapest flights from Pierre Elliott Trudeau Intl to Ko SamuiExplore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Best flights from Pierre Elliott Trudeau Intl to Ko SamuiDiscover carefully curated flight deals from Pierre Elliott Trudeau Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Pierre Elliott Trudeau Intl to Ko SamuiDiscover last-minute flight deals from Pierre Elliott Trudeau Intl to Ko Samui. Data last updated 26 October 2026 and is based on user searches.

Discover last-minute flight deals from Pierre Elliott Trudeau Intl to Ko Samui. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Pierre Elliott Trudeau Intl to Ko SamuiSearch for one-way flight options from Pierre Elliott Trudeau Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Search for one-way flight options from Pierre Elliott Trudeau Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

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Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui that are best for you.

Best time to book a flight from Pierre Elliott Trudeau Intl to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Pierre Elliott Trudeau Intl with our price prediction graph.

Cheapflights Insights

How often are flights from Montreal to Ko Samui delayed?

About 27% of weekly flights between Montreal and Ko Samui have experienced delays in the past year, with the average delay time being 117 minutes.

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

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

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

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

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

Over the past year, Air Canada has had the lowest number of delays on this route, with just 27% of flights being delayed.

Related info for your journey

What airport do you fly into for flights to Ko Samui from Montreal Pierre Elliott Trudeau Intl?

How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Ko Samui?

Can I find deals for flights from Pierre Elliott Trudeau Intl to Ko Samui that include hotel bookings?

How can I find direct flights from Pierre Elliott Trudeau Intl to Ko Samui?

Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Ko Samui?

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Other flights to Ko Samui

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Pierre Elliott Trudeau Intl and Ko Samui flights

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Cheapest flights from Pierre Elliott Trudeau Intl to Ko Samui
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Best flights from Pierre Elliott Trudeau Intl to Ko Samui
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Pierre Elliott Trudeau Intl to Ko Samui
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to Ko Samui. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Pierre Elliott Trudeau Intl to Ko Samui
Search for one-way flight options from Pierre Elliott Trudeau Intl to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.