Cheap Flights from Bangkok to Ontario International

Compare Bangkok to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Bangkok to Ontario International

Looking for a cheap last-minute deal or the best return flight from Bangkok to Ontario International? Find the lowest prices on one-way and return tickets right here.

Ontario.฿15,689 per passenger.Departing Fri, 15 Aug.One-way flight with Cebu Pacific.Outbound indirect flight with Cebu Pacific, departs from Bangkok Suvarnabhumi on Fri, 15 Aug, arriving in Ontario International.Price includes taxes and charges.From ฿15,689, select.

Ontario.฿15,905 per passenger.Departing Tue, 13 May.One-way flight with Air Premia.Outbound indirect flight with Air Premia, departs from Bangkok Suvarnabhumi on Tue, 13 May, arriving in Ontario International.Price includes taxes and charges.From ฿15,905, select.

Ontario.฿16,273 per passenger.Departing Fri, 6 Jun.One-way flight with Cebu Pacific.Outbound indirect flight with Cebu Pacific, departs from Bangkok Suvarnabhumi on Fri, 6 Jun, arriving in Ontario International.Price includes taxes and charges.From ฿16,273, select.

Ontario.฿16,979 per passenger.Departing Wed, 24 Sep.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Wed, 24 Sep, arriving in Ontario International.Price includes taxes and charges.From ฿16,979, select.

Ontario.฿17,008 per passenger.Departing Tue, 14 Oct.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Tue, 14 Oct, arriving in Ontario International.Price includes taxes and charges.From ฿17,008, select.

Ontario.฿17,493 per passenger.Departing Sun, 7 Dec.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Sun, 7 Dec, arriving in Ontario International.Price includes taxes and charges.From ฿17,493, select.

Ontario.฿17,523 per passenger.Departing Tue, 4 Nov.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Tue, 4 Nov, arriving in Ontario International.Price includes taxes and charges.From ฿17,523, select.

Ontario.฿17,859 per passenger.Departing Sun, 22 Mar.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Sun, 22 Mar, arriving in Ontario International.Price includes taxes and charges.From ฿17,859, select.

Find the cheapest month to fly from Bangkok to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Bangkok to Ontario International flights are currently cheapest in August.

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Bangkok to Ontario International: Alternative routes

Compare routes from Bangkok to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Bangkok to Ontario: Flight information

The things to know before you go.

Cheapest flight found	฿15,689
Cheapest month to fly	August

Finding cheap flights from Bangkok to Ontario International: Frequently asked questions

How much are return flights from Bangkok to Ontario International?

The best price we found for a return flight from Bangkok to Ontario International is ฿27,094. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Bangkok to Ontario International?

Currently, there are no airlines that fly direct from Bangkok to Ontario International. But we found flights with one stop from ฿27,094.

How many flights are there a week from Bangkok to Ontario International?

As of May 2025, there are no flights flying from Bangkok to Ontario International.

When is the cheapest time to fly from Bangkok to Ontario International?

The cheapest month to fly from Bangkok to Ontario International is usually May 2025.

Which upcoming date is cheapest to fly from Bangkok to Ontario International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Bangkok to Ontario International Airport on Friday, 23 May 2025.

Can I get a direct flight from Bangkok to Ontario International Airport?

No airlines currently offer direct flights between Bangkok and Ontario International Airport. Most routes have one or more stops.

How can I find the best flight deal to Ontario International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Ontario?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Bangkok to Ontario International with?

The cheapest airline that flies to Ontario International is China Airlines .

How to find cheap flights to Ontario International from Bangkok

Looking for cheap tickets from Bangkok to Ontario International? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Bangkok to Ontario International. And with us there are no hidden fees - what you see is what you pay.
Compare flight deals to Ontario International from Bangkok from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
Flex your dates to find the best Bangkok-Ontario International ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Ontario International from Bangkok.
Set up a Price Alert. You can easily track the fare of your cheap Bangkok-Ontario International flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
Fly without stops. Only interested in direct flights between Bangkok and Ontario International? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
Find the cheapest Business class flights from Bangkok and Ontario International. We scour the internet for the best Business, Premium Economy and First Class flight fares to Ontario International, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
Include nearby airports in your search. Widen your search for Bangkok to Ontario International flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

Combine your flight to Ontario International from Bangkok with hotels and car hire

Once you've secured your cheap flight ticket from Bangkok to Ontario International, discover the best prices and exclusive rates for hotels in Ontario International or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.