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Ontario

$475+ Cheap flights from Thailand to Ontario (ONT)

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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Sep 2 — Sep 91
Tue 9/2
Tue 9/9
1 adult, Economy
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Cheap flight deals from Thailand to Ontario

Keep the following information in mind while searching for Thailand to Ontario flight deals. Data was last updated August 28, 2025.

Round-trip from

$771
(oojo)

One-way from

$475
(oojo)

Popular in

August

Cheapest in

October

Average price

$956
From Thailand to Ontario
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One-way flight from Thailand to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Thailand to Ontario

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 August 28, 2025.

This oojo deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:40 pmBKK - ONT
1 stop37h 50mSTARLUX Airlines
Wed 12/109:45 pmONT - BKK
1 stop27h 45mSTARLUX Airlines
Deal found 8/27$771
This oojo deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:45 pmBKK - ONT
1 stop17h 45mSTARLUX Airlines
Fri 11/149:45 pmONT - BKK
1 stop27h 45mSTARLUX Airlines
Deal found 8/26$772
This TeaFlight deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/201:10 pmBKK - ONT
1 stop17h 55mSTARLUX Airlines
Wed 10/2910:45 pmONT - BKK
1 stop23h 50mSTARLUX Airlines
Deal found 8/28$820
This flugladen.de deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/101:20 pmBKK - ONT
1 stop18h 40mChina Airlines
Mon 10/2012:10 amONT - BKK
1 stop19h 35mChina Airlines
Deal found 8/27$826
This flugladen.de deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:30 pmBKK - ONT
1 stop39h 10mChina Airlines
Tue 9/2312:10 amONT - BKK
1 stop19h 35mChina Airlines
Deal found 8/26$827
This STARLUX Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/105:50 pmBKK - ONT
1 stop37h 15mSTARLUX Airlines
Fri 10/1711:10 pmONT - BKK
1 stop22h 50mSTARLUX Airlines
Deal found 8/27$835
This EaseMyTrip deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:50 pmBKK - ONT
1 stop37h 15mSTARLUX Airlines
Wed 1/219:45 pmONT - BKK
1 stop23h 50mSTARLUX Airlines
Deal found 8/27$839
This oojo deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/291:10 pmBKK - ONT
1 stop17h 55mSTARLUX Airlines
Mon 9/2911:10 pmONT - BKK
1 stop22h 50mSTARLUX Airlines
Deal found 8/27$842
This China Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/710:50 amBKK - ONT
1 stop21h 50mChina Airlines
Sat 9/2012:10 amONT - BKK
1 stop26h 10mChina Airlines
Deal found 8/27$847
This China Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:50 amBKK - ONT
1 stop21h 50mChina Airlines
Tue 9/1612:10 amONT - BKK
1 stop26h 10mChina Airlines
Deal found 8/26$850
This Vakatrip deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vakatrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/192:40 amBKK - ONT
1 stop29h 20mChina Airlines
Wed 10/2911:50 pmONT - BKK
1 stop23h 15mChina Airlines
Deal found 8/28$877
This Mytrip deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:10 amDMK - ONT
2 stops24h 30mMultiple Airlines
Tue 9/1612:10 amONT - DMK
2 stops32h 05mMultiple Airlines
Deal found 8/27$1,051

Cheapflights Fare Finder

 
Customize your flight search to find flights from Thailand to Ontario 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 2,558,603 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from Thailand to Ontario that are best for you.

Fly from

Thailand

Fly to

Ontario

Route

Depart

Return

Price

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 11/18

5:40 pm-4:30 pm

1 stop37h 50m

Ontario

Wed 12/10

9:45 pm-4:30 pm

1 stop27h 45m

$771

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 11/14

1:45 pm-4:30 pm

1 stop17h 45m

Ontario

Sat 12/6

9:45 pm-12:35 pm

1 stop23h 50m

$772

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 10/21

5:50 pm-5:05 pm

1 stop37h 15m

Ontario

Wed 11/5

9:45 pm-12:35 pm

1 stop23h 50m

$772

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 11/14

1:45 pm-4:30 pm

1 stop17h 45m

Ontario

Fri 11/14

9:45 pm-4:30 pm

1 stop27h 45m

$772

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 9/8

1:10 pm-5:05 pm

1 stop17h 55m

Ontario

Wed 9/17

11:10 pm-12:00 pm

1 stop22h 50m

$772

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 10/20

1:10 pm-5:05 pm

1 stop17h 55m

Ontario

Wed 10/29

10:45 pm-12:35 pm

1 stop23h 50m

$820

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 10/10

1:20 pm-6:00 pm

1 stop18h 40m

Ontario

Mon 10/20

12:10 am-9:45 am

1 stop19h 35m

$826

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 9/11

5:30 pm-6:40 pm

1 stop39h 10m

Ontario

Tue 9/23

12:10 am-9:45 am

1 stop19h 35m

$827

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 10/10

5:50 pm-5:05 pm

1 stop37h 15m

Ontario

Fri 10/17

11:10 pm-12:00 pm

1 stop22h 50m

$835

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 9/7

10:50 am-6:40 pm

1 stop21h 50m

Ontario

Sat 9/20

12:10 am-4:20 pm

1 stop26h 10m

$839

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/27

Showing 1-10 of 30 results
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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.
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 Thailand to Ontario

What is the cheapest month to book a flight from Thailand to Ontario?

Currently, August is the cheapest month in which you can book a flight from Thailand to Ontario (average of $246). Flying from Thailand to Ontario in March is currently the most expensive (average of $328). 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 TH to ONT?

Find hourly flight availability from Thailand to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 28, 2025.

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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated August 28, 2025.
Read reviews from past customers who have flown STARLUX Airlines and China Airlines from Thailand to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Boarding

9.0

Food

8.8

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
8.9
Very good
211 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Boarding

9.0

Food

8.8

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
765 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Comfort

8.9

Overall

8.9

Boarding

9.0

Food

8.8

Crew

9.2

Entertainment

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

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

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Thailand. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Thailand to Ontario?

    A quick flight from Thailand to Ontario can take about 37h 50m. STARLUX Airlines provides one of the quickest options available for as low as $771. There are 8280 mi between Thailand and Ontario.

  • What are the most popular routes from Thailand to Ontario?

    Most travelers choose Bangkok Suvarnabhumi - Ontario, Bangkok Don Mueang Intl - Ontario or Krabi - Ontario when deciding on the best route 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 vacation 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.

  • What is the cheapest month to book a flight from Thailand to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Thailand to Ontario (average of $246). Flying from Thailand to Ontario in March is currently the most expensive (average of $328). 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

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Top 2 airlines flying from Thailand to Ontario

Discover the top 2 airlines that operate flights from Thailand to Ontario. 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 2,558,603 searches. Data last updated August 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
STARLUX AirlinesCheapest$799Average$951FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$828Average$982FlexibilityNo cancel feeOn-time70%

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