฿12,240 Cheap Flights from Ontario (ONT) to Bangkok (BKK)

View ฿12,240 flight on Tue, 6 Jan 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Suvarnabhumi International Airport (BKK)

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Cheap Flights from Ontario (ONT) to Bangkok (BKK)

Prices were available within the past 7 days and start at ฿12,240 for one-way flights and ฿23,055 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 15 Nov - Tue, 18 Nov
ONT
Ontario
BKK
Bangkok
฿23,055 Return, found 3 days ago
฿23,055
Return
found 3 days ago
Select Delta flight, departing Sat, 15 Nov from Ontario to Bangkok, returning Tue, 18 Nov, priced at ฿23,055 found 3 days ago
Korean Air
Mon, 16 Feb - Mon, 20 Apr
ONT
Ontario
BKK
Bangkok
฿23,090 Return, found 4 days ago
฿23,090
Return
found 4 days ago
Select Korean Air flight, departing Mon, 16 Feb from Ontario to Bangkok, returning Mon, 20 Apr, priced at ฿23,090 found 4 days ago
Korean Air
Thu, 13 Nov - Mon, 17 Nov
ONT
Ontario
BKK
Bangkok
฿23,235 Return, found 3 days ago
฿23,235
Return
found 3 days ago
Select Korean Air flight, departing Thu, 13 Nov from Ontario to Bangkok, returning Mon, 17 Nov, priced at ฿23,235 found 3 days ago
United
Wed, 12 Nov - Wed, 19 Nov
ONT
Ontario
BKK
Bangkok
฿24,425 Return, found 3 days ago
฿24,425
Return
found 3 days ago
Select United flight, departing Wed, 12 Nov from Ontario to Bangkok, returning Wed, 19 Nov, priced at ฿24,425 found 3 days ago
Korean Air
Mon, 16 Feb - Mon, 20 Apr
ONT
Ontario
BKK
Bangkok
฿24,670 Return, found 4 days ago
฿24,670
Return
found 4 days ago
Select Korean Air flight, departing Mon, 16 Feb from Ontario to Bangkok, returning Mon, 20 Apr, priced at ฿24,670 found 4 days ago
Korean Air
Fri, 27 Mar - Sun, 26 Apr
ONT
Ontario
BKK
Bangkok
฿24,700 Return, found 6 days ago
฿24,700
Return
found 6 days ago
Select Korean Air flight, departing Fri, 27 Mar from Ontario to Bangkok, returning Sun, 26 Apr, priced at ฿24,700 found 6 days ago
Delta
Thu, 27 Nov - Tue, 27 Jan
ONT
Ontario
BKK
Bangkok
฿24,730 Return, found 2 days ago
฿24,730
Return
found 2 days ago
Select Delta flight, departing Thu, 27 Nov from Ontario to Bangkok, returning Tue, 27 Jan, priced at ฿24,730 found 2 days ago
Delta
Thu, 27 Nov - Tue, 27 Jan
ONT
Ontario
BKK
Bangkok
฿24,790 Return, found 2 days ago
฿24,790
Return
found 2 days ago
Select Delta flight, departing Thu, 27 Nov from Ontario to Bangkok, returning Tue, 27 Jan, priced at ฿24,790 found 2 days ago
China Airlines
Mon, 16 Feb - Mon, 20 Apr
ONT
Ontario
BKK
Bangkok
฿25,665 Return, found 4 days ago
฿25,665
Return
found 4 days ago
Select China Airlines flight, departing Mon, 16 Feb from Ontario to Bangkok, returning Mon, 20 Apr, priced at ฿25,665 found 4 days ago
Alaska Airlines
Wed, 12 Nov - Wed, 19 Nov
ONT
Ontario
BKK
Bangkok
฿27,210 Return, found 3 days ago
฿27,210
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 12 Nov from Ontario to Bangkok, returning Wed, 19 Nov, priced at ฿27,210 found 3 days ago

Find the cheapest month to fly from Ontario (ONT) to Bangkok (BKK)

September is typically the cheapest month to fly

From ฿23,022 - ฿28,543 per traveller.

Alternative airports near Bangkok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Suvarnabhumi Intl. BKK. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from ฿23,055
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city centre23 min
Flights from ฿23,055
Flight from Ontario to Bangkok route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Suvarnabhumi Intl.
Airlines serving
American Airlines, China Airlines, Delta, Japan Airlines, KLM, Korean Air, Qatar Airways, United
Return price
฿23,055
Distance
13255 km

Perfect flights from Ontario to Bangkok

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Ontario to Bangkok. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Los Angeles - Ontario Intl. to Suvarnabhumi Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿12,240 and roundtrip prices from ฿23,055. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Suvarnabhumi Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Bangkok.

Frequently asked questions

How much is a flight from Ontario Airport to Suvarnabhumi Airport?
The lowest price advertised for a round-trip journey between Los Angeles - Ontario Intl. Airport (ONT) and Bangkok Airport is ฿23,055. But you better move fast. This price is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ONT to Bangkok Airport?
This can vary between air carriers, as each one has its own terms and conditions. Head to the Customer Service Portal, where there are easy-to-follow instructions on how to cancel online.
How do I find cheap flights from ONT to Bangkok Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ontario Airport to Suvarnabhumi Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to Suvarnabhumi Airport?
The distance is around 13,300 kilometres. Sleep mask? Check. Warm clothes? Double check. We recommend you pack all the travel comforts for this long-haul Ontario to Bang Phli flight.
Which airlines fly direct from ONT to Suvarnabhumi Airport?
Right now, no airlines offer flights directly from ONT to Bangkok Airport. You'll have to book a flight with at least one stop. To score the best price and connections, lock in your fare well ahead of time.
Are Ontario Airport to Bangkok Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Los Angeles - Ontario Intl. Airport (ONT) to Bangkok Airport last minute could be your ticket to a great deal. However, it could end up costing you a whole lot more! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

Ontario Airports

Los Angeles

Los Angeles Intl. to Bangkok
฿16,765.00

Burbank

*Available to Expedia members.