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$413+ 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Vliegwinkel deal was found by Cheapflights users on 12/10. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:05 pmBKK - ONT
1 stop17h 45mChina Airlines
Thu 1/810:50 pmONT - BKK
1 stop35h 45mChina Airlines
Deal found 12/10$760
This FlightHub deal was found by Cheapflights users on 12/10. 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 12/252:05 pmBKK - ONT
1 stop17h 45mChina Airlines
Fri 1/1610:50 pmONT - BKK
1 stop20h 00mChina Airlines
Deal found 12/10$789
This FlightHub deal was found by Cheapflights users on 12/10. 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 12/142:35 amBKK - ONT
1 stop29h 15mChina Airlines
Thu 1/1510:50 pmONT - BKK
1 stop35h 45mChina Airlines
Deal found 12/10$790
This China Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/1710:55 amBKK - ONT
1 stop20h 55mChina Airlines
Wed 12/2410:50 pmONT - BKK
1 stop23h 15mChina Airlines
Deal found 12/11$793
This FlightHub deal was found by Cheapflights users on 12/10. 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.
Sat 12/205:50 pmBKK - ONT
1 stop38h 00mChina Airlines
Thu 1/810:50 pmONT - BKK
1 stop26h 55mChina Airlines
Deal found 12/10$841
This TeaFlight deal was found by Cheapflights users on 12/10. 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.
Thu 12/112:05 pmBKK - ONT
1 stop17h 45mMultiple Airlines
Thu 3/266:00 amONT - BKK
2 stops27h 20mMultiple Airlines
Deal found 12/10$844
This FlightHub deal was found by Cheapflights users on 12/10. 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.
Wed 12/2410:55 amBKK - ONT
1 stop20h 55mChina Airlines
Thu 1/1510:50 pmONT - BKK
1 stop26h 55mChina Airlines
Deal found 12/10$859
This China Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/122:05 pmBKK - ONT
1 stop17h 45mChina Airlines
Sun 1/1810:50 pmONT - BKK
1 stop35h 45mChina Airlines
Deal found 12/10$862
This China Airlines deal was found by Cheapflights users on 12/10. 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 12/112:05 pmBKK - ONT
1 stop17h 45mChina Airlines
Thu 3/2611:50 pmONT - BKK
1 stop26h 55mChina Airlines
Deal found 12/10$894
This China Airlines deal was found by Cheapflights users on 12/10. 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 12/222:05 pmBKK - ONT
1 stop17h 45mChina Airlines
Wed 1/1410:50 pmONT - BKK
1 stop26h 55mChina Airlines
Deal found 12/10$900

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$685
(TeaFlight)

One-way from

$413
(FlightHub)

Popular in

July

Cheapest in

December

Average price

$736
Provider with most accurate pricing for Bangkok Suvarnabhumi-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bangkok Suvarnabhumi-Ontario flights.
Search Deals
From Bangkok Suvarnabhumi to Ontario
Search Deals
One-way flight from Bangkok Suvarnabhumi to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 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

Mon 4/13

1:10 pm-5:05 pm

1 stop17h 55m

Ontario

Mon 4/27

11:10 pm-4:40 pm

1 stop27h 30m

$685

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 3/27

5:40 pm-4:50 pm

1 stop37h 10m

Ontario

Mon 3/30

11:10 pm-12:00 pm

1 stop22h 50m

$742

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 3/6

1:45 pm-3:50 pm

1 stop17h 05m

Ontario

Mon 5/11

11:10 pm-4:40 pm

1 stop27h 30m

$742

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Sat 1/31

2:35 am-4:50 pm

1 stop29h 15m

Ontario

Sun 3/1

10:50 pm-1:35 am

1 stop35h 45m

$785

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 1/26

2:05 pm-4:50 pm

1 stop17h 45m

Ontario

Sun 3/1

10:50 pm-9:50 am

1 stop20h 00m

$785

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Thu 3/5

2:05 pm-4:50 pm

1 stop17h 45m

Ontario

Mon 5/11

12:10 am-4:20 pm

1 stop26h 10m

$785

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 1/27

2:05 pm-4:50 pm

1 stop17h 45m

Ontario

Sun 2/8

10:50 pm-1:05 pm

1 stop23h 15m

$787

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 4/7

10:50 am-6:00 pm

1 stop21h 10m

Ontario

Sun 4/12

12:10 am-12:10 pm

1 stop22h 00m

$824

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Tue 4/7

10:50 am-6:00 pm

1 stop21h 10m

Ontario

Thu 4/9

12:10 am-1:25 am

1 stop35h 15m

$824

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 4/3

1:20 pm-6:00 pm

1 stop18h 40m

Ontario

Mon 4/13

12:10 am-12:10 pm

1 stop22h 00m

$824

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 21 results
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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 December.
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 $773). 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 December 12, 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
243 reviews

Food

8.7

Comfort

8.9

Crew

9.2

Boarding

8.9

Entertainment

8.9

Overall

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very good
243 reviews
STARLUX Airlines
8.9
Very good
243 reviews

Food

8.7

Comfort

8.9

Crew

9.2

Boarding

8.9

Entertainment

8.9

Overall

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
China Airlines
8.2
Very good
788 reviews
STARLUX Airlines
8.9
Very good
243 reviews

Food

8.7

Comfort

8.9

Crew

9.2

Boarding

8.9

Entertainment

8.9

Overall

8.9

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

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 17h 55m. STARLUX Airlines provides one of the quickest options available for as low as $685. The distance from Bangkok Suvarnabhumi Airport to Ontario is about 8280 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    China Airlines, at $735, was found to be the cheapest airline from Bangkok Suvarnabhumi Airport to Ontario. An alternate airline flying to your destination would be STARLUX Airlines. You may be able to fly from Bangkok Suvarnabhumi Airport to Ontario for 17% 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 $773). 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

Browse thousands of different options on Cheapflights for your next trip

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$735Average$960FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$750Average$911FlexibilityNo cancel feeOn-timeN/A

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