HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$443+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Suvarnabhumi to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 mayo 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$889
(United Airlines)

One-way from

$443
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$936
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. 0% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 mayo 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/19:35 amBKK - ONT
2 stops46h 02mUnited Airlines
dom. 9/216:36 pmONT - BKK
2 stops43h 59mUnited Airlines
Deal found 4/29$889
This Vakatrip deal was found by Cheapflights users on 4/30. 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.
mar. 9/1610:50 amBKK - ONT
1 stop21h 10mChina Airlines
vie. 9/2612:10 amONT - BKK
1 stop19h 35mChina Airlines
Deal found 4/30$892
This iWofly deal was found by Cheapflights users on 4/30. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/165:50 pmBKK - ONT
1 stop37h 15mSTARLUX Airlines
sáb. 9/2711:10 pmONT - BKK
1 stop22h 50mSTARLUX Airlines
Deal found 4/30$940
This Vakatrip deal was found by Cheapflights users on 4/30. 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.
jue. 5/15:30 pmBKK - ONT
1 stop38h 30mMultiple Airlines
jue. 5/86:00 amONT - BKK
2 stops27h 40mMultiple Airlines
Deal found 4/30$1,063
This StudentUniverse deal was found by Cheapflights users on 4/30. 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.
lun. 8/42:30 amBKK - ONT
2 stops29h 34mQatar Airways
jue. 9/411:39 amONT - BKK
2 stops28h 36mQatar Airways
Deal found 4/30$2,139
This Etihad Airways deal was found by Cheapflights users on 4/30. 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.
jue. 6/128:55 pmBKK - ONT
2 stops39h 04mEtihad Airways
sáb. 6/2811:59 pmONT - BKK
2 stops41h 11mEtihad Airways
Deal found 4/30$2,604
This British Airways deal was found by Cheapflights users on 4/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/210:55 pmBKK - ONT
2 stops33h 54mBritish Airways
dom. 11/95:01 pmONT - BKK
2 stops32h 09mBritish Airways
Deal found 4/30$11,167

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 mayo 1, 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

lun. 9/1

9:35 am-5:37 pm

2 stops46h 02m

Ontario

dom. 9/21

6:36 pm-4:35 am

2 stops43h 59m

$889

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

mar. 9/16

10:50 am-6:00 pm

1 stop21h 10m

Ontario

vie. 9/26

12:10 am-9:45 am

1 stop19h 35m

$892

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

mar. 9/16

5:50 pm-5:05 pm

1 stop37h 15m

Ontario

sáb. 9/27

11:10 pm-12:00 pm

1 stop22h 50m

$940

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

vie. 6/13

3:00 am-5:05 pm

2 stops28h 05m

Ontario

sáb. 6/21

11:10 pm-6:25 pm

2 stops29h 15m

$1,090

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

lun. 8/4

2:30 am-6:04 pm

2 stops29h 34m

Ontario

jue. 9/4

11:39 am-6:15 am

2 stops28h 36m

$2,139

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

jue. 6/12

8:55 pm-9:59 pm

2 stops39h 04m

Ontario

sáb. 6/28

11:59 pm-7:10 am

2 stops41h 11m

$2,604

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

jue. 5/29

10:45 pm-11:36 pm

2 stops38h 51m

$443

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

lun. 5/19

2:40 am-6:00 pm

1 stop29h 20m

$522

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

sáb. 9/6

1:10 pm-5:05 pm

1 stop17h 55m

$537

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

vie. 5/23

8:05 am-3:50 pm

2 stops21h 45m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 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 May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Bangkok Suvarnabhumi Airport-Ontario flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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, August is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Ontario (average of $246). Flying from Bangkok Suvarnabhumi Airport 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 BKK to ONT?

Find hourly flight availability from Suvarnabhumi 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 mayo 1, 2025.

One of the essential ways to save on airfare from Bangkok Suvarnabhumi Airport to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 8% on airfare.

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 mayo 1, 2025.
Read reviews from past customers who have flown STARLUX Airlines, Japan Airlines and China Airlines from Bangkok to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,459 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
732 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Qatar Airways
7.4
Good
3,563 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Etihad Airways
7.4
Good
1,203 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

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 1 airline has flights to the Ontario airport from Bangkok Suvarnabhumi. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

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

    United Airlines, at $889, was found to be the cheapest airline from Bangkok Suvarnabhumi Airport to Ontario.Alternate airlines to your destination round-trip include China Airlines and STARLUX Airlines. You may be able to fly from Bangkok Suvarnabhumi Airport to Ontario for 8% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Bangkok Suvarnabhumi Airport to Ontario one-way?

    $522 is the cheapest one-way deal found within the past few days, from China Airlines. You may also be able to find cheap deals on STARLUX Airlines and Japan Airlines, with prices starting from $537 and $640, respectively.

  • 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, August is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to Ontario (average of $246). Flying from Bangkok Suvarnabhumi Airport 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Suvarnabhumi to Ontario

Discover the top airline 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$872Average$955FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.