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Ontario

$421+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Round-trip from

$832
(Gotogate)

One-way from

$421
(Kiwi.com)

Popular in

August

Cheapest in

October

Average price

$827
From Thailand to Ontario
Search Deals
One-way flight from Thailand to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($44 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 February 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 February 22, 2025.

This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/191:10 pmBKK - ONT
1 stop17h 55mSTARLUX Airlines
Wed 9/2411:10 pmONT - BKK
1 stop27h 30mSTARLUX Airlines
Deal found 2/20$808
This Gotogate deal was found by Cheapflights users on 2/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/710:55 amBKK - ONT
1 stop20h 55mChina Airlines
Sun 3/2311:45 pmONT - BKK
1 stop23h 20mChina Airlines
Deal found 2/21$832
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Fri 9/129:35 amBKK - ONT
2 stops46h 25mUnited Airlines
Sun 9/146:00 amONT - BKK
2 stops56h 35mUnited Airlines
Deal found 2/22$922
This Kissandfly.com deal was found by Cheapflights users on 2/21. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/72:05 pmBKK - ONT
1 stop17h 45mMultiple Airlines
Sun 3/236:00 amONT - BKK
2 stops34h 40mMultiple Airlines
Deal found 2/21$1,044
This Delta deal was found by Cheapflights users on 2/21. 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.
Tue 3/411:15 pmBKK - ONT
2 stops31h 10mDelta
Mon 4/145:45 amONT - BKK
2 stops41h 30mDelta
Deal found 2/21$1,345
This Korean Air deal was found by Cheapflights users on 2/21. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/282:35 amBKK - ONT
2 stops28h 47mKorean Air
Sun 7/137:00 amONT - BKK
2 stops26h 25mKorean Air
Deal found 2/21$1,437
This oojo deal was found by Cheapflights users on 2/22. 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 2/287:35 amBKK - ONT
2 stops51h 42mQatar Airways
Sat 3/156:00 amONT - BKK
2 stops34h 40mQatar Airways
Deal found 2/22$2,036
This Air Canada deal was found by Cheapflights users on 2/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/78:35 amBKK - ONT
2 stops29h 10mAir Canada
Fri 4/116:39 pmONT - BKK
2 stops44h 36mAir Canada
Deal found 2/21$2,073
This StudentUniverse deal was found by Cheapflights users on 2/22. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/48:55 pmBKK - ONT
2 stops38h 27mEtihad Airways
Sun 6/810:40 pmONT - BKK
2 stops35h 15mEtihad Airways
Deal found 2/22$2,586
This FlightHub deal was found by Cheapflights users on 2/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/118:05 amBKK - ONT
2 stops21h 07mJapan Airlines
Thu 9/256:00 amONT - BKK
2 stops27h 00mJapan Airlines
Deal found 2/21$3,576
This American Airlines deal was found by Cheapflights users on 2/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/710:05 pmBKK - ONT
2 stops33h 35mAmerican Airlines
Thu 9/256:38 amONT - BKK
2 stops33h 12mAmerican Airlines
Deal found 2/21$4,185
This Kiwi.com deal was found by Cheapflights users on 2/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:00 amDMK - ONT
2 stops29h 05mMultiple Airlines
Tue 9/2312:10 amONT - DMK
1 stop31h 10mMultiple Airlines
Deal found 2/21$6,654

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 February 22, 2025.

Fly from

Thailand

Fly to

Ontario

Route

Depart

Return

Price

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 3/7

10:55 am-4:50 pm

1 stop20h 55m

Ontario

Sun 3/23

11:45 pm-1:05 pm

1 stop23h 20m

$832

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sat 5/24

7:00 am-10:45 pm

2 stops29h 45m

Ontario

Tue 7/15

1:28 pm-4:35 am

2 stops49h 07m

$924

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 6/1

5:50 pm-5:05 pm

1 stop37h 15m

Ontario

Fri 7/4

11:45 pm-12:00 pm

1 stop22h 15m

$935

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 3/7

2:05 pm-4:50 pm

1 stop17h 45m

Ontario

Sun 3/23

6:00 am-6:40 am

2 stops34h 40m

$1,044

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 3/4

1:00 am-3:25 pm

2 stops29h 25m

Ontario

Thu 4/17

5:45 am-9:45 pm

2 stops26h 00m

$1,345

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sat 6/28

2:35 am-5:22 pm

2 stops28h 47m

Ontario

Sun 7/13

7:00 am-11:25 pm

2 stops26h 25m

$1,437

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 3/7

8:35 am-10:45 pm

2 stops29h 10m

Ontario

Fri 4/11

6:39 pm-5:15 am

2 stops44h 36m

$2,073

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 7/13

2:30 am-6:17 pm

2 stops29h 47m

Ontario

Mon 7/28

11:30 am-6:15 am

2 stops28h 45m

$2,261

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 5/4

8:55 pm-9:22 pm

2 stops38h 27m

Ontario

Sun 6/8

10:40 pm-11:55 pm

2 stops35h 15m

$2,586

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 4/8

10:55 pm-6:20 pm

2 stops33h 25m

Ontario

Tue 4/15

11:59 pm-3:55 pm

2 stops49h 56m

$4,437

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 21 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.

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 $315). 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 February 22, 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 February 22, 2025.
Get a feel of what it's like to fly with STARLUX Airlines, Korean Air and Japan 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.
STARLUX Airlines
9.1
Wonderful
140 reviews

Boarding

9.1

Overall

9.1

Crew

9.3

Entertainment

9.1

Food

9.0

Comfort

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

STARLUX Airlines
9.1
Wonderful
140 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Boarding

9.1

Overall

9.1

Crew

9.3

Entertainment

9.1

Food

9.0

Comfort

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Korean Air
8.4
Very good
1,036 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Boarding

9.1

Overall

9.1

Crew

9.3

Entertainment

9.1

Food

9.0

Comfort

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Boarding

9.1

Overall

9.1

Crew

9.3

Entertainment

9.1

Food

9.0

Comfort

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

China Airlines
8.2
Very good
726 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Boarding

9.1

Overall

9.1

Crew

9.3

Entertainment

9.1

Food

9.0

Comfort

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Delta
8.0
Very good
8,212 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Boarding

9.1

Overall

9.1

Crew

9.3

Entertainment

9.1

Food

9.0

Comfort

9.0

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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 ($511), STARLUX Airlines ($592), and United Airlines ($637).

  • 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 $315). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$872Average$940FlexibilityNo cancel feeOn-time70%
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