Look for other cheap flights to Ontario

$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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Find the cheapest flights from Australia to Ontario

Cheap return flights

United Airlines Logo
10:20 - 20:54SYD-ONT
27h 34m2 stops
United Airlines Logo
13:15 - 06:55ONT-SYD
24h 40m2 stops
$1,356United Airlines
Find Deal
Tue, 5 Aug - Tue, 9 Sep
United Airlines Logo
10:20 - 12:14SYD-ONT
18h 54m1 stop
United Airlines Logo
13:19 - 06:55ONT-SYD
24h 36m1 stop
$1,365United Airlines
Find Deal
Wed, 25 Jun - Sun, 29 Jun
Alaska Airlines Logo
21:40 - 14:09SYD-ONT
33h 29m2 stops
Alaska Airlines Logo
08:35 - 19:45ONT-SYD
18h 10m1 stop
$1,555Alaska Airlines
Find Deal
Tue, 2 Sep - Sat, 6 Sep
Alaska Airlines Logo
21:40 - 11:05SYD-ONT
30h 25m2 stops
Alaska Airlines Logo
08:35 - 19:45ONT-SYD
18h 10m1 stop
$1,604Alaska Airlines
Find Deal
Sun, 13 Jul - Fri, 12 Sep
China Airlines Logo
23:20 - 17:50MEL-ONT
36h 30m1 stop
China Airlines Logo
23:45 - 12:05ONT-MEL
42h 20m1 stop
$1,760China Airlines
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Tue, 28 Oct - Sat, 1 Nov
China Airlines Logo
22:10 - 18:00SYD-ONT
37h 50m1 stop
China Airlines Logo
22:45 - 12:10ONT-SYD
42h 25m1 stop
$1,765China Airlines
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Thu, 16 Oct - Thu, 6 Nov
 Logo
00:30 - 18:40MEL-ONT
35h 10m2 stops
 Logo
00:45 - 22:35ONT-MEL
28h 50m2 stops
$1,783
Find Deal
Sun, 31 Aug - Thu, 4 Sep
 Logo
22:15 - 12:13BNE-ONT
30h 58m2 stops
 Logo
19:22 - 20:00ONT-BNE
31h 38m2 stops
$1,822
Find Deal
Tue, 19 Aug - Thu, 4 Sep
Air Canada Logo
10:20 - 17:23SYD-ONT
25h 03m2 stops
Air Canada Logo
06:00 - 06:55ONT-SYD
29h 55m2 stops
$2,333Air Canada
Find Deal
Mon, 20 Oct - Thu, 11 Dec
Air Canada Logo
10:20 - 17:23SYD-ONT
25h 03m2 stops
Air Canada Logo
06:00 - 06:55ONT-SYD
29h 55m2 stops
$2,374Air Canada
Find Deal
Mon, 20 Oct - Sat, 13 Dec

See travel insights to Ontario from

Ontario flights insights and trends

Explore insights for your Ontario flight to craft the best travel plan

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 SYDNEYAugust1% cheaperFlying from Sydney to Ontario costs on average just $1,270 in August
MOST EXPENSIVE MONTH TO FLY TO ONTARIO FROM SYDNEYJune48% more expensiveIt costs about $1,851 for flights to Ontario from Sydney in June
MOST POPULAR MONTH TO FLY TO ONTARIO FROM SYDNEYJune800% more users visitedMore 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
The best one-way flight price to Ontario from Australia in the last 72 hours is $725 (Sydney Kingsford Smith to Ontario).
The best round-trip flight price to Ontario from Australia in the last 72 hours is $1,356 (Sydney Kingsford Smith to Ontario).
The fastest flight to Ontario from Australia takes 18h 54m (Sydney Kingsford Smith to Ontario).

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?

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.


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1 adult
Mon 9/6
Mon 16/6

Find better results for your trip to Ontario

Popular Flights to Ontario

Popular routes according to searches in the past day on momondo

Cheapest flight routes to Ontario

These routes have the cheapest flights to Ontario found by momondo users in Australia
DepartingDestinationBest TimeBest Price
SydneyOntario16h 49m$1,356
BrisbaneOntario18h 57m$1,409
MelbourneOntario18h 18m$1,760
AdelaideOntario22h 39m$1,837
CoolangattaOntario28h 43m$1,902
PerthOntario27h 28m$2,077
MaroochydoreOntario22h 17m$4,175
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