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Cheap flights from Ontario to Chiang Mai from C$ 769

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — CNX
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Chiang Mai

Keep the following information in mind while searching for Ontario to Chiang Mai flight deals. Data was last updated 30 October 2025.

Round-trip from

C$ 1,237

One-way from

C$ 775

Popular in

December

Cheapest in

May

Average price

C$ 2,393
Delta
  • Delta
  • 17/2-9/3
  • 4 total stops
  • 80h 07m total
  • Ontario to Chiang Mai
Search Deals
6/12
  • 6/12
  • 3 total stops
  • 46h 35m total
  • Ontario to Chiang Mai
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 324 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 86 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from Ontario to Chiang Mai

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Chiang Mai
Explore the most affordable flight options available from Ontario to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2025.

Mon 17/113:25 p.m.YYZ - CNX
2 stops36h 00mChina Eastern
Mon 1/124:25 p.m.CNX - YYZ
3 stops57h 00mChina Eastern
Deal found 29/10C$ 1,412
Wed 29/106:45 p.m.YYZ - CNX
2 stops28h 50mMultiple Airlines
Wed 5/111:15 p.m.CNX - YYZ
2 stops38h 38mMultiple Airlines
Deal found 28/10C$ 1,484
Thu 27/117:00 p.m.YUL - CNX
2 stops51h 35mMultiple Airlines
Wed 17/1211:50 a.m.CNX - YUL
2 stops24h 42mMultiple Airlines
Deal found 30/10C$ 1,606
Mon 1/126:20 p.m.YUL - CNX
2 stops29h 00mMultiple Airlines
Mon 22/129:40 p.m.CNX - YUL
2 stops31h 20mMultiple Airlines
Deal found 29/10C$ 1,616
Sat 6/125:50 p.m.YOW - CNX
2 stops27h 35mMultiple Airlines
Sat 17/19:40 p.m.CNX - YOW
2 stops30h 05mMultiple Airlines
Deal found 29/10C$ 1,664
Mon 17/113:25 p.m.YYZ - CNX
3 stops53h 40mMultiple Airlines
Mon 1/124:25 p.m.CNX - YYZ
3 stops57h 00mMultiple Airlines
Deal found 29/10C$ 1,677
Fri 21/116:45 a.m.YUL - CNX
2 stops43h 35mChina Eastern
Tue 25/113:35 p.m.CNX - YUL
2 stops45h 08mChina Eastern
Deal found 28/10C$ 1,769
Sun 16/1112:15 a.m.YYZ - CNX
1 stop22h 20mEVA Air
Mon 1/1211:50 a.m.CNX - YYZ
1 stop20h 30mEVA Air
Deal found 29/10C$ 1,818
Thu 27/117:00 a.m.YUL - CNX
2 stops27h 55mDelta
Tue 16/1212:15 a.m.CNX - YUL
2 stops29h 10mDelta
Deal found 30/10C$ 1,956
Wed 29/104:25 p.m.YYZ - CNX
2 stops53h 40mChina Eastern
Sun 30/113:35 p.m.CNX - YYZ
1 stop33h 50mChina Eastern
Deal found 28/10C$ 1,956
Mon 1/127:00 a.m.YUL - CNX
2 stops27h 55mDelta
Sun 21/1212:15 a.m.CNX - YUL
2 stops29h 00mDelta
Deal found 29/10C$ 2,058
Mon 1/128:10 p.m.YUL - CNX
2 stops26h 25mEVA Air
Mon 22/129:40 p.m.CNX - YUL
3 stops38h 52mEVA Air
Deal found 29/10C$ 2,216

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Chiang Mai 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 30 October 2025.
Use the filters below to find and compare flights from Ontario to Chiang Mai that are best for you.

Fly from

Ontario

Fly to

Chiang Mai

Route

Depart

Return

Price

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

3:00 p.m.-10:55 p.m.

2 stops43h 55m

Chiang Mai

Tue 10/3

12:15 a.m.-11:12 p.m.

2 stops33h 57m

C$ 1,237

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

3:00 p.m.-10:55 p.m.

2 stops43h 55m

Chiang Mai

Tue 10/3

12:15 a.m.-11:39 p.m.

2 stops34h 24m

C$ 1,237

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

12:45 p.m.-10:55 p.m.

2 stops46h 10m

Chiang Mai

Wed 4/3

12:15 a.m.-5:04 p.m.

2 stops52h 49m

C$ 1,237

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

12:45 p.m.-10:55 p.m.

2 stops46h 10m

Chiang Mai

Sun 8/3

12:15 a.m.-11:39 p.m.

2 stops34h 24m

C$ 1,237

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

3:00 p.m.-10:55 p.m.

2 stops43h 55m

Chiang Mai

Mon 9/3

12:15 a.m.-4:01 p.m.

2 stops26h 46m

C$ 1,237

TorontoChiang Mai

YYZ - CNX

YYZCNX

Toronto Pearson Intl

Wed 14/1

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

2 stops52h 45m

Chiang Mai

Thu 5/2

12:15 a.m.-11:09 a.m.

2 stops46h 54m

C$ 1,282

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

12:45 p.m.-10:55 p.m.

2 stops46h 10m

Chiang Mai

Thu 5/3

12:15 a.m.-1:49 p.m.

2 stops49h 34m

C$ 1,287

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

12:45 p.m.-10:55 p.m.

2 stops46h 10m

Chiang Mai

Fri 6/3

12:15 a.m.-10:44 a.m.

2 stops46h 29m

C$ 1,287

MontrealChiang Mai

YUL - CNX

YULCNX

Montreal Pierre Elliott Trudeau Intl

Tue 17/2

7:00 a.m.-10:55 p.m.

2 stops51h 55m

Chiang Mai

Fri 6/3

12:15 a.m.-10:44 a.m.

2 stops46h 29m

C$ 1,287

TorontoChiang Mai

YYZ - CNX

YYZCNX

Toronto Pearson Intl

Mon 17/11

3:25 p.m.-2:20 p.m.

1 stop34h 55m

Chiang Mai

Mon 1/12

4:25 p.m.-1:25 p.m.

2 stops57h 00m

C$ 1,437

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 52 results
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Best time to book a flight from Ontario to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai 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 Chiang Mai

What is the cheapest month to book a flight from Region of Ontario to Chiang Mai?

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Chiang Mai (average of C$ 1,391). Flying from Region of Ontario to Chiang Mai in May is currently the most expensive (average of C$ 2,191). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Ontario to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2025.

One of the essential ways to save on airfare from Region of Ontario to Chiang Mai is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 27% on airfare.

How much does it cost to fly round-trip from Region of Ontario to Chiang Mai?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Chiang Mai. 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 Chiang Mai from Ontario?

    If you book a flight to Chiang Mai from Ontario, you will be flying to Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 3.1 km from the centre of Chiang Mai.

  • How long is the flight from Region of Ontario to Chiang Mai?

    For as low as C$ 1,437, Delta can have you in Chiang Mai from Region of Ontario in 34h 55m. There are 13060 km between Region of Ontario and Chiang Mai. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Region of Ontario to Chiang Mai?

    The most popular flight routes from Region of Ontario to Chiang Mai are Toronto Pearson Intl - Chiang Mai, Montreal Pierre Elliott Trudeau Intl - Chiang Mai and Ottawa - Chiang Mai.

  • Can I find deals for flights from Ontario to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on Ontario to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Chiang Mai.

  • Can I find deals for business class flights from Ontario to Chiang Mai?

    Yes. Cheapflights offers flight deals from Ontario to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to Chiang Mai?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Chiang Mai (average of C$ 1,391). Flying from Region of Ontario to Chiang Mai in May is currently the most expensive (average of C$ 2,191). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Ontario to Chiang Mai

Discover the top 3 airlines that operate flights from Ontario to Chiang Mai. 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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapestC$ 1,551AverageC$ 2,233FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
EVA AirCheapestC$ 1,628AverageC$ 1,976FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Korean AirCheapestC$ 1,775AverageC$ 2,555FlexibilityNo cancel feeOn-time81%
Search Korean 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 Chiang Mai?

Cheapflights helps you search for flights from Ontario to Chiang Mai via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Chiang Mai?

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

Can Cheapflights find flights from Ontario to Chiang Mai with no change fees?

Yes, we can. To see specific flights from Ontario to Chiang Mai with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to Chiang Mai become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Chiang Mai from Ontario today and book when prices fit your budget.

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