$725 Cheap flights to Ontario
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Ontario departing on 9/8. 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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Ontario flights insights and trends
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What is the cheapest day to depart on your flight to Ontario?
According to our data, Monday is the cheapest day to fly to Ontario from Australia. The lowest ticket price found for a Monday departure recently was $1,424. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Wednesday is the most expensive day to depart from Australia because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,871.
What is the cheapest time of day to depart on your flight to Ontario?
Flying to Ontario from Australia in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,666 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $1,694. Of course, these prices can vary depending on the time of year and what airport you fly to.
Cheapest flights to Ontario
Find the cheapest flights to Ontario from your nearest city or airport
| CHEAPEST MONTH TO FLY TO ONTARIO FROM SYDNEY | August | 1% cheaper | Flying from Sydney to Ontario costs on average just $1,270 in August |
| MOST EXPENSIVE MONTH TO FLY TO ONTARIO FROM SYDNEY | June | 48% more expensive | It costs about $1,851 for flights to Ontario from Sydney in June |
| MOST POPULAR MONTH TO FLY TO ONTARIO FROM SYDNEY | June | 800% more users visited | More momondo users searched in flights to Ontario from Sydney in June than any other month |
Cheap Ontario flight deals and tips
Summary info about Ontario flight prices, duration and airlines
Best One-Way Price | $725 |
|---|---|
Best Round-Trip Price | $1,356 |
Fastest flight time | 18h 54m |
Frequently asked questions about flying to Ontario
What is the cheapest month to fly to Ontario?
The month of September is another great option to travel to Ontario, with average flight prices from Australia averaging around $1,277.
Is there an alternative airport near Ontario?
Finding an alternative and possibly cheaper destination airport near Ontario is possible. If you are planning a flight to Ontario, consider booking flights to Ontario Airport (5 km from Ontario city centre), San Bernardino Int Airport (38 km from Ontario city centre), Santa Ana J. Wayne/Orange Cnty Airport (47 km from Ontario city centre), Long Beach Municipal Airport (54 km from Ontario city centre) or Burbank Bob Hope Airport (67 km from Ontario city centre).
Is there a cheaper alternative to flying into Ontario?
Burbank Bob Hope Airport has an average price of $121 per person and is typically the cheapest airport to fly into when visiting Ontario. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.
What is the absolute cheapest flight to Ontario?
The best deal found on momondo in the last two weeks was a flight to Ontario from San Francisco for $83. This is 72% cheaper than most flight deals to Ontario. To find the cheapest price to Ontario from your area, use momondo’s Airport-to-Airport Pricing Tool.
When did momondo last update prices for flights to Ontario Airport?
Prices for flights to Ontario Airport are updated daily.
How many operators does momondo search for flights to Ontario Airport?
The number of operators available for flights to Ontario Airport is 1 as of June 2025.
How old do you have to be to fly to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport 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 licence and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal to Ontario?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight to Ontario. momondo saves you time and could save you money on your trip.
Can I find flights to Ontario with flexible booking policies on momondo?
All flight searches to Ontario on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights to Ontario?
Once all potential Ontario 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 to Ontario right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.