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$424+ Cheap flights from Suvarnabhumi (BKK) 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 12/27. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Suvarnabhumi to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Suvarnabhumi (BKK) 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$698
(Kissandfly.com)

One-way from

$424
(FlightHub)

Popular in

July

Cheapest in

December

Average price

$825
Provider with most accurate pricing for Bangkok Suvarnabhumi-Ontario flight deals.
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Provider most trusted by Cheapflights users for Bangkok Suvarnabhumi-Ontario flights.
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From Bangkok Suvarnabhumi to Ontario
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One-way flight from Bangkok Suvarnabhumi to Ontario
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Highest demand for flights based on searches. 3% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Suvarnabhumi to Ontario

Cheapest flights from Suvarnabhumi to Ontario
Explore the most affordable flight options available from Suvarnabhumi to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Gotogate deal was found by Cheapflights users on 10/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3110:55 amBKK - ONT
1 stop20h 55mChina Airlines
Sun 11/1610:50 pmONT - BKK
1 stop26h 55mChina Airlines
Deal found 10/27$703
This Justfly.com deal was found by Cheapflights users on 10/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/81:45 pmBKK - ONT
1 stop17h 45mSTARLUX Airlines
Mon 11/179:45 pmONT - BKK
1 stop23h 50mSTARLUX Airlines
Deal found 10/27$704
This TeaFlight deal was found by Cheapflights users on 10/29. 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.
Wed 11/261:45 pmBKK - ONT
1 stop17h 05mSTARLUX Airlines
Wed 12/39:45 pmONT - BKK
1 stop23h 50mSTARLUX Airlines
Deal found 10/29$705
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:40 pmBKK - ONT
1 stop37h 10mSTARLUX Airlines
Mon 11/179:45 pmONT - BKK
1 stop27h 45mSTARLUX Airlines
Deal found 10/27$717
This Gotogate deal was found by Cheapflights users on 10/29. 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.
Sun 12/72:35 amBKK - ONT
1 stop29h 15mChina Airlines
Thu 12/1110:50 pmONT - BKK
1 stop35h 45mChina Airlines
Deal found 10/29$725
This Gotogate deal was found by Cheapflights users on 10/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:55 amBKK - ONT
1 stop20h 55mChina Airlines
Tue 11/1110:50 pmONT - BKK
1 stop26h 55mChina Airlines
Deal found 10/28$726
This China Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 11/252:35 amBKK - ONT
1 stop29h 15mChina Airlines
Wed 12/310:50 pmONT - BKK
1 stop26h 55mChina Airlines
Deal found 10/26$735
This China Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 11/222:35 amBKK - ONT
1 stop29h 15mChina Airlines
Mon 12/810:50 pmONT - BKK
1 stop20h 00mChina Airlines
Deal found 10/29$736
This China Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 12/162:35 amBKK - ONT
1 stop29h 15mChina Airlines
Fri 2/2710:50 pmONT - BKK
1 stop35h 45mChina Airlines
Deal found 10/27$737

Cheapflights Fare Finder

 
Customize your flight search to find flights from Suvarnabhumi 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 October 29, 2025.
Use the filters below to find and compare flights from Bangkok Suvarnabhumi Airport to Ontario that are best for you.

Fly from

Suvarnabhumi

Fly to

Ontario

Route

Depart

Return

Price

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 11/25

2:35 am-4:50 pm

1 stop29h 15m

Ontario

Wed 12/3

10:50 pm-4:45 pm

1 stop26h 55m

$735

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Wed 12/3

2:05 pm-4:50 pm

1 stop17h 45m

Ontario

Wed 12/10

10:50 pm-4:45 pm

1 stop26h 55m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 11/24

10:55 am-4:50 pm

1 stop20h 55m

Ontario

Wed 12/10

10:50 pm-1:05 pm

1 stop23h 15m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 12/8

2:05 pm-4:50 pm

1 stop17h 45m

Ontario

Tue 12/23

10:50 pm-9:50 am

1 stop20h 00m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sat 11/22

2:35 am-4:50 pm

1 stop29h 15m

Ontario

Mon 12/8

10:50 pm-9:50 am

1 stop20h 00m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sat 12/6

2:35 am-4:50 pm

1 stop29h 15m

Ontario

Tue 12/23

10:50 pm-9:50 am

1 stop20h 00m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sat 12/13

2:35 am-4:50 pm

1 stop29h 15m

Ontario

Wed 12/31

10:50 pm-9:50 am

1 stop20h 00m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 12/8

2:35 am-4:50 pm

1 stop29h 15m

Ontario

Wed 12/24

10:50 pm-1:05 pm

1 stop23h 15m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sun 12/7

10:55 am-4:50 pm

1 stop20h 55m

Ontario

Wed 12/24

10:50 pm-4:45 pm

1 stop26h 55m

$736

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 11/25

2:05 pm-4:50 pm

1 stop17h 45m

Ontario

Tue 12/9

10:50 pm-1:05 pm

1 stop23h 15m

$736

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 19 results
1
2

Compare providers for flights from Suvarnabhumi to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Suvarnabhumi to Ontario in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bangkok Suvarnabhumi Airport-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bangkok Suvarnabhumi Airport-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bangkok Suvarnabhumi Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bangkok Suvarnabhumi Airport-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bangkok Suvarnabhumi Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Suvarnabhumi to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Suvarnabhumi 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 Bangkok Suvarnabhumi Airport to Ontario

What is the cheapest month to book a flight from Bangkok Suvarnabhumi Airport to Ontario?

Currently, September is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Ontario (average of $588). Flying from Bangkok Suvarnabhumi Airport to Ontario in January is currently the most expensive (average of $763). 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.

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 October 29, 2025.
See what other customers who have flown with STARLUX Airlines and China Airlines from Bangkok Suvarnabhumi Airport to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Overall

8.9

Comfort

8.9

Food

8.7

Boarding

8.9

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
STARLUX Airlines
8.9
Very good
219 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Overall

8.9

Comfort

8.9

Food

8.7

Boarding

8.9

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
China Airlines
8.3
Very good
776 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Overall

8.9

Comfort

8.9

Food

8.7

Boarding

8.9

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

Related info for your journey

Find useful and relevant information for your journey from Suvarnabhumi 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 Bangkok Suvarnabhumi?

    Ontario (ONT) is the airport you will fly into if you book a flight from Bangkok Suvarnabhumi to Ontario. You should not have trouble finding flights to Ontario from Bangkok Suvarnabhumi; the airport handles an average of 0 inbound flights from Bangkok Suvarnabhumi per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Ontario airport from Bangkok Suvarnabhumi. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

  • How long is the flight from Bangkok Suvarnabhumi Airport to Ontario?

    A quick flight from Bangkok Suvarnabhumi Airport to Ontario can take about 29h 15m. China Airlines provides one of the quickest options available for as low as $735. The distance from Bangkok Suvarnabhumi Airport to Ontario is about 8280 mi.

  • What are the cheapest airlines flying from Bangkok Suvarnabhumi Airport to Ontario round-trip?

    STARLUX Airlines, at $750, was found to be the cheapest airline from Bangkok Suvarnabhumi Airport to Ontario. An alternate airline flying to your destination would be China Airlines. You may be able to fly from Bangkok Suvarnabhumi Airport to Ontario for 18% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from Suvarnabhumi to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Suvarnabhumi 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 Bangkok Suvarnabhumi Airport to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Ontario (average of $588). Flying from Bangkok Suvarnabhumi Airport to Ontario in January is currently the most expensive (average of $763). 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 Suvarnabhumi to Ontario

Discover the top 2 airlines that operate flights from Suvarnabhumi 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
STARLUX AirlinesCheapest$750Average$911FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$821Average$995FlexibilityNo cancel feeOn-time70%

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