Cheap flights from Ontario to Bangkok from $420
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Bangkok departing on 7/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ontario to Bangkok
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Bangkok?
If you aren’t able to travel during the month of September, then book flights to Bangkok from Ontario during March instead. Flights to Bangkok in March, while not as cheap as those in September, still average around $871.
What is the cheapest day to depart on your flight to Bangkok?
On average, the least expensive day to fly to Bangkok from Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $887. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Ontario to Bangkok on a Sunday will generally be more expensive and average around $936. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Bangkok?
According to our data, the cheapest time of day to fly to Bangkok is in the morning. momondo users have found flights departing from Ontario to Bangkok in the morning for as low as $901. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $922. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight to Bangkok?
You are more likely to see cheaper flights to Bangkok from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,051 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Ontario for as low as $837 on momondo.
What is the cheapest airline that flies from Ontario to Bangkok?
Korean Air, Delta, and China Airlines are the most popular carriers operating from Ontario to Bangkok
What airlines fly to Bangkok?
China Airlines, Asiana Airlines and Singapore Airlines are the top three most popular airlines that fly to Bangkok from Ontario according to our data. China Airlines is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 24 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.
Cheap Ontario to Bangkok flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Bangkok
How far is Ontario to Bangkok by plane?
A flight from Ontario to Bangkok will travel around 8282.1 mi. In terms of flight time, this usually takes a little over 19h 00m.
When did momondo last update prices for flights from Ontario Airport to Bangkok?
Prices for flights from Ontario Airport to Bangkok refresh daily.
How many operators does momondo search for flights from Ontario Airport to Bangkok?
There are 4 operators available for flights from Ontario Airport to Bangkok as of July 2025.
How old do you have to be to fly from Ontario Airport to Bangkok?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Bangkok.
What documentation or ID do you need to fly to Bangkok?
The travel and health documents you'll need for your trip to Bangkok may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bangkok. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Ontario to Bangkok
Compare and see reviews for airlines that fly from Ontario to Bangkok with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $781 | Free Cancellation | Rating 8.4 1,101 reviews | |||
| PriceFrom $795 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $808 | Free Cancellation | Rating 9.1 189 reviews | |||
| PriceFrom $819 | Free Cancellation | Rating 8.3 744 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Bangkok?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Bangkok for you.
Can I find flights from Ontario to Bangkok with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Bangkok from Ontario with this policy.
How can momondo help me find flights from Ontario to Bangkok?
Once all potential Ontario to Bangkok flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Ontario to Bangkok right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Ontario to Bangkok now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bangkok and let you know when they change.