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$498+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from Thailand to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Thailand (TH0) to Ontario (ONT). 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 January 17, 2025.

Round-trip from

$814
(China Airlines)

One-way from

$498
(China Airlines)
From Thailand to Ontario
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One-way flight from Thailand to Ontario
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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 January 17, 2025.

This China Airlines deal was found by Cheapflights users on 1/16. 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.
Thu 3/205:50 pmBKK - ONT
1 stop38h 00mChina Airlines
Mon 3/2411:45 pmONT - BKK
1 stop20h 05mChina Airlines
Deal found 1/16$814
This United Airlines deal was found by Cheapflights users on 1/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/47:10 amBKK - ONT
2 stops28h 41mUnited Airlines
Wed 2/56:15 amONT - BKK
2 stops26h 50mUnited Airlines
Deal found 1/16$873
This EVA Air deal was found by Cheapflights users on 1/16. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/294:45 pmBKK - ONT
2 stops31h 54mMultiple Airlines
Sun 7/136:55 pmONT - BKK
2 stops26h 15mMultiple Airlines
Deal found 1/16$1,322
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/161:00 amBKK - ONT
2 stops36h 32mDelta
Wed 3/125:40 amONT - BKK
2 stops25h 50mDelta
Deal found 1/16$1,430
This oojo deal was found by Cheapflights users on 1/16. 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 6/22:30 amBKK - ONT
2 stops34h 07mQatar Airways
Tue 6/1712:50 pmONT - BKK
2 stops34h 20mQatar Airways
Deal found 1/16$1,731
This Etihad Airways deal was found by Cheapflights users on 1/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/52:45 amBKK - ONT
2 stops33h 37mEtihad Airways
Sat 5/2411:37 pmONT - BKK
2 stops41h 28mEtihad Airways
Deal found 1/16$2,587
This oojo deal was found by Cheapflights users on 1/15. 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.
Sun 3/308:05 amBKK - ONT
2 stops24h 18mJapan Airlines
Tue 4/86:00 amONT - BKK
2 stops27h 00mJapan Airlines
Deal found 1/15$4,199

Find flights from Thailand to Ontario within your budget

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 January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 3/20

5:50 pm-5:50 pm

1 stop38h 00m

Ontario

Mon 3/24

11:45 pm-9:50 am

1 stop20h 05m

$814

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 2/4

7:10 am-8:51 pm

2 stops28h 41m

Ontario

Wed 2/5

6:15 am-12:05 am

2 stops26h 50m

$873

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 6/29

4:45 pm-10:39 am

2 stops31h 54m

Ontario

Sun 7/13

6:55 pm-11:10 am

2 stops26h 15m

$1,322

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 2/16

1:00 am-10:32 pm

2 stops36h 32m

Ontario

Wed 3/12

5:40 am-9:30 pm

2 stops25h 50m

$1,430

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 6/2

2:30 am-10:37 pm

2 stops34h 07m

Ontario

Tue 6/17

12:50 pm-1:10 pm

2 stops34h 20m

$1,731

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 5/5

2:45 am-10:22 pm

2 stops33h 37m

Ontario

Sat 5/24

11:37 pm-7:05 am

2 stops41h 28m

$2,587

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 3/30

8:05 am-6:23 pm

2 stops24h 18m

Ontario

Tue 4/8

6:00 am-11:00 pm

2 stops27h 00m

$4,199

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 2/13

2:35 am-4:50 pm

1 stop29h 15m

$498

BangkokOntario

DMK - ONT

DMKONT

Bangkok Don Mueang Intl

Thu 1/30

11:55 pm-11:31 pm

2 stops38h 36m

$543

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 1/30

3:05 pm-9:40 am

3 stops33h 35m

$591

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 18 results
1
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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.

Travel insights for flights from Thailand to Ontario

Get recent, data-driven insights about flights from Thailand to Ontario including ideal travel times, pricing trends, and more.

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 $311). 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 January 17, 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 January 17, 2025.
Get a feel of what it's like to fly with China Airlines and United Airlines from Thailand to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,034 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,448 reviews
Korean Air
8.5
Very good
1,034 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

China Airlines
8.2
Very good
737 reviews
Korean Air
8.5
Very good
1,034 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,511 reviews
Korean Air
8.5
Very good
1,034 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Qatar Airways
7.5
Good
3,752 reviews
Korean Air
8.5
Very good
1,034 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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.

  • What are the cheapest airlines to fly from Thailand to Ontario one-way?

    The cheapest airlines for a one-way flight from Thailand to Ontario are China Airlines ($498), United Airlines ($623), and Delta ($961).

  • 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 $311). 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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Alternative routes for Thailand to Ontario

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Top airline flying from Thailand to Ontario

Discover the top airline 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 January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$878Average$953FlexibilityNo cancel feeOn-time70%
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