How long is the flight from Thailand to Ontario?

A quick flight from Thailand to Ontario can take about 18h 40m. China Airlines provides one of the quickest options available for as low as ฿28,375. Thailand and Ontario are separated by a distance of 13325 km.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

What are the most popular routes from Thailand to Ontario?

The most popular route from Thailand to Ontario is Bangkok Suvarnabhumi - Ontario. You may also consider Bangkok Don Mueang Intl - Ontario or Krabi - Ontario.

What is the cheapest time of day to fly from TH to ONT?

When flying from Thailand to Ontario, 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 Ontario from Thailand?

Ontario (ONT), located 4.9 km from the city centre, is the airport you fly into when you book flights from Thailand to Ontario.

Can I find deals for flights from Thailand to Ontario that include hotel bookings?

Yes. In addition to deals on Thailand to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Thailand to Ontario?

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

Can I find deals for business class flights from Thailand to Ontario?

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

฿16,045+ Cheap Flights from Thailand to Ontario

Cheap flight deals from Thailand to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Thailand to Ontario
Explore the most affordable flight options available from Thailand to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Fri 13/1113:45 -

1 stop17h 10m

Fri 27/1121:45 -

1 stop23h 50m

Deal found 6/9฿28,343

Tue 8/902:40 -

1 stop30h 00m

Mon 26/400:10 -

1 stop35h 15m

Deal found 6/9฿28,375

Fri 2/1010:50 -

1 stop21h 10m

Sun 25/1023:50 -

1 stop20h 00m

Deal found 8/9฿28,408

Wed 30/902:40 -

1 stop29h 20m

Tue 13/1000:10 -

1 stop19h 35m

Deal found 9/9฿28,507

Fri 25/917:30 -

1 stop38h 30m

Sat 7/1122:50 -

1 stop35h 45m

Deal found 8/9฿28,540

Wed 9/1213:45 -

1 stop17h 10m

Fri 22/121:45 -

1 stop23h 50m

Deal found 9/9฿28,573

Wed 7/1013:20 -

1 stop18h 40m

Tue 13/1000:10 -

1 stop19h 35m

Deal found 7/9฿28,671

Mon 14/913:10 -

1 stop17h 55m

Mon 21/923:30 -

1 stop22h 30m

Deal found 5/9฿28,803

Wed 14/1013:10 -

1 stop17h 55m

Mon 26/1022:45 -

1 stop27h 45m

Deal found 7/9฿28,869

Mon 12/1013:10 -

1 stop17h 55m

Mon 19/1023:30 -

1 stop22h 30m

Deal found 9/9฿28,934

Thu 10/907:30 -

2 stops25h 10m

Sun 13/900:45 -

2 stops32h 20m

Deal found 8/9฿33,275

Fri 2/1006:40 -

2 stops25h 20m

Sun 4/1000:10 -

2 stops32h 30m

Deal found 7/9฿33,866

Best flights from Thailand to Ontario
Discover carefully curated flight deals from Thailand to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Thu 1/1013:20 -

1 stop18h 40m

Sat 3/1000:10 -

1 stop26h 10m

Deal found 5/9฿28,375

Sat 10/1013:10 -

1 stop17h 55m

Sat 12/1221:45 -

1 stop27h 45m

Deal found 7/9฿29,658

Wed 7/1009:35 -

2 stops24h 56m

Wed 14/1016:03 -

2 stops27h 32m

Deal found 7/9฿31,039

Thu 1/1007:30 -

2 stops24h 30m

Tue 13/1000:10 -

2 stops32h 55m

Deal found 9/9฿34,952

Mon 18/110:55 -

1 stop21h 10m

Mon 18/122:50 -

1 stop35h 45m

Deal found 8/9฿28,540

Wed 3/202:35 -

1 stop29h 30m

Mon 1/322:50 -

1 stop20h 00m

Deal found 9/9฿28,540

Tue 1/1216:55 -

2 stops42h 34m

Thu 31/1218:27 -

2 stops50h 03m

Deal found 9/9฿31,631

Wed 3/210:55 -

1 stop21h 10m

Wed 3/322:50 -

1 stop35h 45m

Deal found 9/9฿28,540

Mon 12/1007:30 -

2 stops24h 30m

Sun 18/1000:10 -

2 stops32h 55m

Deal found 9/9฿35,938

Sat 30/110:55 -

1 stop21h 10m

Thu 15/400:10 -

1 stop35h 15m

Deal found 8/9฿28,540

Wed 7/1013:20 -

1 stop18h 40m

Tue 13/1000:10 -

1 stop19h 35m

Deal found 7/9฿28,671

Fri 2/1007:30 -

2 stops24h 30m

Sun 4/1000:10 -

2 stops27h 25m

Deal found 5/9฿38,272

Sun 1/1114:05 -

1 stop18h 00m

Sun 10/122:50 -

1 stop20h 00m

Deal found 5/9฿30,283

Mon 1/210:55 -

1 stop21h 10m

Thu 15/400:10 -

1 stop35h 15m

Deal found 8/9฿30,447

Fri 5/214:05 -

1 stop18h 00m

Fri 5/322:50 -

1 stop20h 00m

Deal found 9/9฿30,447

Sat 20/223:00 -

2 stops33h 05m

Mon 31/500:10 -

1 stop31h 10m

Deal found 9/9฿55,206

Fri 9/1016:30 -

2 stops38h 35m

Tue 16/222:50 -

1 stop29h 45m

Deal found 8/9฿77,959

Fri 9/1016:30 -

2 stops38h 35m

Fri 19/222:50 -

1 stop29h 45m

Deal found 8/9฿77,991

Thu 15/1018:25 -

2 stops36h 40m

Sat 20/222:50 -

1 stop31h 40m

Deal found 8/9฿80,589

Sat 10/1007:30 -

2 stops23h 35m

Tue 16/222:50 -

1 stop29h 45m

Deal found 8/9฿81,871

Mon 12/1007:25 -

1 stop23h 40m

Tue 16/222:50 -

1 stop29h 45m

Deal found 8/9฿85,784

Find flight deals from Thailand to Ontario

Round-trip from	฿28,343
One-way from	฿16,045
Popular in	August
Cheapest in	October
Average price	฿25,416

STARLUX Airlines
13/11-27/11
2 total stops
41h 00m total
Thailand to Ontario

Search Deals

China Airlines
11/11-31/12
1 total stop
21h 10m total
Thailand to Ontario

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (฿60,057 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (฿10,799 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Fri 4/12

14:05-17:05

1 stop18h 00m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,243

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Sun 28/2

10:55-17:05

1 stop21h 10m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,243

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Thu 4/3

02:35-17:05

1 stop29h 30m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,243

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Tue 8/12

14:05-17:05

1 stop18h 00m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,243

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Thu 24/12

10:55-17:05

1 stop21h 10m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,309

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Tue 22/12

10:55-17:05

1 stop21h 10m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿16,309

Fastest return journey

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Mon 15/2

13:45-15:55

1 stop17h 10m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,657

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Tue 16/2

13:45-15:55

1 stop17h 10m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,657

BangkokOntario

BKK Bangkok Suvarnabhumi - ONT Ontario

BKKONT

Bangkok Suvarnabhumi

Tue 9/2

13:45-15:55

1 stop17h 10m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿17,657

BangkokOntario

DMK Bangkok Don Mueang Intl - ONT Ontario

DMKONT

Bangkok Don Mueang Intl

Tue 27/10

03:00-16:55

1 stop27h 55m

Ontario

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿18,183

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 48 resultsSorted by cheapest first

...

Best time to book a flight from Thailand to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Thailand with our price prediction graph.

BKK-ONT

DMK-ONT

KBV-ONT

Estimated return 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 Thailand to Ontario

TH0-ONT

BKK-ONT

DMK-ONT

KBV-ONT

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Ontario from Thailand?
Ontario (ONT), located 4.9 km from the city centre, is the airport you fly into when you book flights from Thailand to Ontario.
How long is the flight from Thailand to Ontario?
A quick flight from Thailand to Ontario can take about 18h 40m. China Airlines provides one of the quickest options available for as low as ฿28,375. Thailand and Ontario are separated by a distance of 13325 km.
What are the most popular routes from Thailand to Ontario?
The most popular route from Thailand to Ontario is Bangkok Suvarnabhumi - Ontario. You may also consider Bangkok Don Mueang Intl - Ontario or Krabi - Ontario.
Can I find deals for flights from Thailand to Ontario that include hotel bookings?
Yes. In addition to deals on Thailand to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Thailand to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Ontario.
Can I find deals for business class flights from Thailand to Ontario?
Yes. Cheapflights offers flight deals from Thailand to Ontario 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

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Popular flights

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How does Cheapflights help users find flights from Thailand to Ontario?

Cheapflights helps you search for flights from Thailand to Ontario 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 Thailand to Ontario?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Thailand to Ontario.

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

Yes, we can. To see specific flights from Thailand to Ontario 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 Thailand to Ontario become cheaper?

Of course! You can now track prices for flights from Thailand to Ontario 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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Cheap flights from Thailand to Ontario from ฿16,045

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Thailand to Ontario

Cheapest flights from Thailand to OntarioExplore the most affordable flight options available from Thailand to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Explore the most affordable flight options available from Thailand to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Thailand to OntarioDiscover carefully curated flight deals from Thailand to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from Thailand to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Thailand to OntarioDiscover last-minute flight deals from Thailand to Ontario. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Thailand to Ontario. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Thailand to OntarioSearch for one-way flight options from Thailand to Ontario. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from Thailand to Ontario. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

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Best time to book a flight from Thailand to Ontario

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Cheapflights Insights

Related info for your journey

What airport do you fly into for flights to Ontario from Thailand?

How long is the flight from Thailand to Ontario?

What are the most popular routes from Thailand to Ontario?

Can I find deals for flights from Thailand to Ontario that include hotel bookings?

How can I find direct flights from Thailand to Ontario?

Can I find deals for business class flights from Thailand to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Thailand to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Thailand to Ontario by cabin class

Find flights from Thailand to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Thailand and Ontario flights

Browse other Thailand and Ontario flight options. Last updated on 10 September 2026.

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Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Thailand to Ontario?

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

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

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

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Cheapest flights from Thailand to Ontario
Explore the most affordable flight options available from Thailand to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Thailand to Ontario
Discover carefully curated flight deals from Thailand to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Last-minute flights from Thailand to Ontario
Discover last-minute flight deals from Thailand to Ontario. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Thailand to Ontario
Search for one-way flight options from Thailand to Ontario. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.