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$817 Find cheap flights to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 30/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
Sat 22/6
Sat 29/6

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,800,826 times on KAYAK, and here's why:

Save 19% or moreCompare multiple travel sites with one search.

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Cheap flight deals to Ontario

 
These are the cheapest deals for flights to Ontario currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals to Ontario

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Australia to Ontario.

Recent one-way flight deals to Ontario

Only flying one-way? Below are some of the best one-way flight deals from Australia to Ontario found on KAYAK recently.

Recent last-minute flight deals to Ontario

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Australia to Ontario.

Recent direct flight deals to Ontario

The latest deals for direct flights from Australia to Ontario so you can sit back and relax without the need for a layover.

Cheap bus & train deals to Ontario

Find recent round-trip train or bus tickets from Australia to Ontario.

All round-trip flight deals to Ontario

The cheapest plane tickets to Ontario found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:20 - 12:33SYD-ONT
43h 13m2 stops
05:15 - 07:00ONT-SYD
32h 45m2 stops
$1,133United Airlines
Find Deal
Mon, 3 Jun - Sun, 9 Jun
10:20 - 20:48SYD-ONT
27h 28m2 stops
05:50 - 07:00ONT-SYD
32h 10m1 stop
$1,136United Airlines
Find Deal
Wed, 12 Jun - Sun, 16 Jun
21:40 - 21:00SYD-ONT
17h 20m1 stop
08:40 - 19:45ONT-SYD
40h 05m1 stop
$1,369Hawaiian Airlines
Find Deal
Sat, 2 Nov - Fri, 15 Nov
15:45 - 21:55MEL-ONT
23h 10m1 stop
09:50 - 15:35ONT-MEL
36h 45m1 stop
$1,543
Find Deal
Wed, 7 Aug - Tue, 13 Aug
22:35 - 16:35MEL-ONT
37h 00m1 stop
22:45 - 12:15ONT-MEL
42h 30m1 stop
$1,626China Airlines
Find Deal
Tue, 19 Nov - Mon, 9 Dec
22:10 - 18:05SYD-ONT
36h 55m1 stop
00:10 - 10:45ONT-SYD
41h 35m1 stop
$1,646China Airlines
Find Deal
Mon, 23 Sep - Thu, 26 Sep
17:00 - 21:00MEL-ONT
22h 00m2 stops
08:40 - 07:35ONT-MEL
51h 55m2 stops
$1,834Hawaiian Airlines
Find Deal
Sun, 13 Oct - Sun, 17 Nov
16:20 - 21:55SYD-ONT
22h 35m1 stop
09:50 - 14:40ONT-SYD
35h 50m1 stop
$1,867
Find Deal
Mon, 22 Jul - Fri, 26 Jul
07:20 - 17:44MEL-ONT
28h 24m2 stops
06:00 - 05:40ONT-MEL
28h 40m2 stops
$2,166Japan Airlines
Find Deal
Mon, 28 Oct - Wed, 6 Nov
07:20 - 15:20MEL-ONT
27h 00m2 stops
06:00 - 05:40ONT-MEL
28h 40m2 stops
$2,310Japan Airlines
Find Deal
Wed, 13 Nov - Wed, 27 Nov
16:20 - 20:35SYD-ONT
21h 15m1 stop
Thu, 30 May
15:45 - 20:35MEL-ONT
21h 50m1 stop
Wed, 29 May
21:40 - 21:45SYD-ONT
17h 05m1 stop
$851Hawaiian Airlines
Find Deal
Fri, 7 Jun
10:20 - 12:17SYD-ONT
18h 57m1 stop
$881United Airlines
Find Deal
Mon, 22 Jul
10:20 - 10:07SYD-ONT
16h 47m1 stop
$883United Airlines
Find Deal
Tue, 20 Aug
22:35 - 16:35MEL-ONT
37h 00m1 stop
$1,069China Airlines
Find Deal
Sun, 17 Nov
22:10 - 18:05SYD-ONT
36h 55m1 stop
$1,155China Airlines
Find Deal
Thu, 6 Jun
21:40 - 21:45SYD-ONT
17h 05m1 stop
$1,233Hawaiian Airlines
Find Deal
Thu, 6 Jun
07:20 - 15:26MEL-ONT
25h 06m2 stops
$1,468Japan Airlines
Find Deal
Wed, 12 Jun
07:20 - 15:29MEL-ONT
25h 09m2 stops
$1,608Japan Airlines
Find Deal
Mon, 29 Jul
10:20 - 22:29SYD-ONT
29h 09m1 stop
05:50 - 07:00ONT-SYD
32h 10m1 stop
$1,134United Airlines
Find Deal
Mon, 27 May - Sun, 9 Jun
10:20 - 12:45SYD-ONT
19h 25m1 stop
05:50 - 07:00ONT-SYD
32h 10m1 stop
$1,136United Airlines
Find Deal
Mon, 27 May - Sun, 9 Jun
10:20 - 20:48SYD-ONT
27h 28m2 stops
18:25 - 07:00ONT-SYD
43h 35m2 stops
$1,206United Airlines
Find Deal
Tue, 28 May - Fri, 14 Jun
10:20 - 17:28SYD-ONT
24h 08m2 stops
13:29 - 07:00ONT-SYD
24h 31m2 stops
$1,211United Airlines
Find Deal
Mon, 27 May - Fri, 31 May
10:20 - 17:28SYD-ONT
24h 08m2 stops
13:50 - 07:00ONT-SYD
24h 10m1 stop
$1,282United Airlines
Find Deal
Sun, 26 May - Thu, 30 May
10:55 - 17:28MEL-ONT
23h 33m2 stops
18:45 - 08:15ONT-MEL
20h 30m1 stop
$1,473United Airlines
Find Deal
Tue, 28 May - Sun, 22 Sep
22:10 - 18:05SYD-ONT
36h 55m1 stop
08:30 - 19:45ONT-SYD
18h 15m1 stop
$2,435
Find Deal
Sun, 26 May - Thu, 30 May
22:10 - 18:05SYD-ONT
36h 55m1 stop
00:10 - 10:45ONT-SYD
41h 35m1 stop
$2,742China Airlines
Find Deal
Mon, 27 May - Thu, 30 May
22:10 - 18:05SYD-ONT
36h 55m1 stop
00:10 - 16:25ONT-SYD
47h 15m2 stops
$3,047China Airlines
Find Deal
Mon, 27 May - Thu, 30 May
14:30 - 18:05SYD-ONT
44h 35m2 stops
00:10 - 10:45ONT-SYD
41h 35m1 stop
$3,559China Airlines
Find Deal
Tue, 28 May - Fri, 14 Jun
10:20 - 12:33SYD-ONT
43h 13m2 stops
05:15 - 07:00ONT-SYD
32h 45m2 stops
$1,133United Airlines
Find Deal
Mon, 3 Jun - Sun, 9 Jun
10:20 - 20:48SYD-ONT
27h 28m2 stops
05:50 - 07:00ONT-SYD
32h 10m1 stop
$1,136United Airlines
Find Deal
Wed, 12 Jun - Sun, 16 Jun
10:20 - 12:15SYD-ONT
18h 55m1 stop
18:35 - 07:00ONT-SYD
19h 25m1 stop
$1,149United Airlines
Find Deal
Thu, 18 Jul - Wed, 31 Jul
10:20 - 12:45SYD-ONT
19h 25m1 stop
13:55 - 07:00ONT-SYD
24h 05m1 stop
$1,151United Airlines
Find Deal
Wed, 5 Jun - Wed, 12 Jun
12:10 - 09:53SYD-ONT
16h 43m1 stop
15:15 - 06:20ONT-SYD
20h 05m1 stop
$1,152United Airlines
Find Deal
Mon, 11 Nov - Sun, 24 Nov
10:20 - 17:28SYD-ONT
24h 08m2 stops
13:55 - 07:00ONT-SYD
24h 05m1 stop
$1,158United Airlines
Find Deal
Wed, 5 Jun - Wed, 12 Jun
10:20 - 12:15SYD-ONT
18h 55m1 stop
18:25 - 07:00ONT-SYD
43h 35m2 stops
$1,169United Airlines
Find Deal
Thu, 4 Jul - Sat, 3 Aug
10:20 - 12:25SYD-ONT
19h 05m1 stop
13:40 - 07:00ONT-SYD
24h 20m1 stop
$1,206United Airlines
Find Deal
Sat, 15 Jun - Wed, 3 Jul
10:20 - 20:48SYD-ONT
27h 28m2 stops
18:25 - 07:00ONT-SYD
43h 35m2 stops
$1,211United Airlines
Find Deal
Tue, 18 Jun - Wed, 24 Jul
10:20 - 10:07SYD-ONT
16h 47m1 stop
18:35 - 07:00ONT-SYD
19h 25m1 stop
$1,214United Airlines
Find Deal
Mon, 23 Sep - Fri, 27 Sep

Flights to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Ontario?

The average price of all flights to Ontario clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Ontario is Saturday where tickets can be as cheap as $1,633. On the other hand, the most expensive day to fly is Tuesday, where prices are $2,561 on average.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Ontario is October, where tickets cost $1,364 on average for one-way flights. On the other hand, the most expensive months are March and July, where the average cost of tickets from Australia is $2,626 and $2,392 respectively. For return trips, the best month to travel is October with an average price of $1,364.

What is the cheapest time of day to fly to Ontario?

The average price for all flights to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Ontario is generally in the morning, when flights cost $1,441 on average. The most expensive time of day to fly to Ontario is generally at night, which is peak travel time and where the average cost of a ticket is $1,663.

How long is the flight to Ontario?

The duration of your flight to Ontario depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to Ontario on KAYAK are from Brisbane, which takes 13h 30m, Sydney, which takes 13h 35m, Melbourne, which takes 14h 10m, and Adelaide, which takes 17h 05m.

Good to know

Low season

September

High season

November

Cheapest flight

$817
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from Sydney to Ontario

When to book flights to Ontario

Are your dates flexible? Find out the best times to travel to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Ontario based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Ontario flights

  • How far is Ontario from central Ontario?

    The distance between Ontario and the city centre of Ontario is 5 km.

  • What is the name of Ontario’s airport?

    Ontario is served by Ontario, also commonly referred to as Ontario or Ontario Intl. The airport code is ONT.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airline offers the most flights to Ontario?

    Of the 8 airlines that fly to Ontario, Southwest offers the most flights, with around 377 per week, followed by Delta with 125 flights per week.

See more FAQs

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Prefer to fly direct to Ontario?

Find which airlines fly direct to Ontario, which days they fly and book direct flights.

Direct departures

Australia to Ontario

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights

Direct returns

Ontario to Australia

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights
See more direct flights

Top airlines flying to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Hawaiian AirlinesOverall score based on 2295 reviews
8.6Crew
7.3Entertainment
7.2Food
8.2Boarding
7.8Comfort
Airline reviews

We were not given the seats we reserved. But helpful attendant at gate gave us very nice seats.

8.0 ExcellentAnonymous, May 2024LIH - OAK
Read more about Hawaiian Airlines reviews

We were not given the seats we reserved. But helpful attendant at gate gave us very nice seats.

The flight was very smooth and comfortable. The entire flight crew was very professional and provided excellent service. Thank you.

It was great with the exception of a rude desk member on the way back. And a terrible sandwich on the way back.

One of the best flights Ive had in a long time

My tray was broken and instead of being moved I was provided blue tape.

One hour delay. No Wi-Fi. Old aircraft. Nasty food

Was unable to check in online within 24 hours of departure

Overall, good flight and quiet cabin! Took the red eye home from Honolulu to LAX!

Couldn’t check in online. Unsure of terminal. Missed flight by minutes due to confusion and not being able to check in online pre flight.

Grumpy and rude gate attendant who was unwilling to help anyone who asked him for assistance. Too little leg room.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

Our seat tv didn’t work All the rest was perfect

Book Cheap Ontario Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Ontario found on KAYAK in the last 72 hours.
3/6Mon
2 stopsUnited Airlines
43h 13mSYD-ONT
9/6Sun
2 stopsUnited Airlines
32h 45mONT-SYD
$1,133
12/6Wed
2 stopsUnited Airlines
27h 28mSYD-ONT
16/6Sun
1 stopUnited Airlines
32h 10mONT-SYD
$1,136
2/11Sat
1 stopHawaiian Airlines
17h 20mSYD-ONT
15/11Fri
1 stopHawaiian Airlines
40h 05mONT-SYD
$1,369
7/8Wed
1 stop
23h 10mMEL-ONT
13/8Tue
1 stop
36h 45mONT-MEL
$1,543
19/11Tue
1 stopChina Airlines
37h 00mMEL-ONT
9/12Mon
1 stopChina Airlines
42h 30mONT-MEL
$1,626
23/9Mon
1 stopChina Airlines
36h 55mSYD-ONT
26/9Thu
1 stopChina Airlines
41h 35mONT-SYD
$1,646
13/10Sun
2 stopsHawaiian Airlines
22h 00mMEL-ONT
17/11Sun
2 stopsHawaiian Airlines
51h 55mONT-MEL
$1,834
22/7Mon
1 stop
22h 35mSYD-ONT
26/7Fri
1 stop
35h 50mONT-SYD
$1,867
28/10Mon
2 stopsJapan Airlines
28h 24mMEL-ONT
6/11Wed
2 stopsJapan Airlines
28h 40mONT-MEL
$2,166
13/11Wed
2 stopsJapan Airlines
27h 00mMEL-ONT
27/11Wed
2 stopsJapan Airlines
28h 40mONT-MEL
$2,310

Search by stops

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Ontario found on KAYAK in the last 72 hours.
30/5Thu
1 stop
21h 15mSYD-ONT
$817
29/5Wed
1 stop
21h 50mMEL-ONT
$841
7/6Fri
1 stopHawaiian Airlines
17h 05mSYD-ONT
$851
22/7Mon
1 stopUnited Airlines
18h 57mSYD-ONT
$881
20/8Tue
1 stopUnited Airlines
16h 47mSYD-ONT
$883
17/11Sun
1 stopChina Airlines
37h 00mMEL-ONT
$1,069
6/6Thu
1 stopChina Airlines
36h 55mSYD-ONT
$1,155
6/6Thu
1 stopHawaiian Airlines
17h 05mSYD-ONT
$1,233
12/6Wed
2 stopsJapan Airlines
25h 06mMEL-ONT
$1,468
29/7Mon
2 stopsJapan Airlines
25h 09mMEL-ONT
$1,608

Search by stops

Search by airline

Search by price

Recent domestic flight deals

6/8Tue
directDelta
2h 43mSEA-ONT
21/8Wed
directDelta
2h 59mONT-SEA
$236
3/7Wed
multi-stopDelta
6h 48mSEA-ONT
10/7Wed
directDelta
2h 44mONT-SEA
$251
6/8Tue
directAlaska Airlines
2h 33mSEA-ONT
13/8Tue
multi-stopAlaska Airlines
5h 18mONT-SEA
$280
6/7Sat
directFrontier
1h 22mSFO-ONT
6/7Sat
multi-stopFrontier
5h 30mONT-SFO
$283
24/6Mon
directAlaska Airlines
2h 35mSEA-ONT
1/7Mon
directAlaska Airlines
2h 40mONT-SEA
$296
11/6Tue
multi-stopSouthwest
9h 55mSFO-ONT
12/6Wed
multi-stopSouthwest
9h 40mONT-SFO
$296
11/6Tue
multi-stopSouthwest
9h 55mSFO-ONT
12/6Wed
multi-stopSouthwest
12h 35mONT-SFO
$304
6/7Sat
directUnited Airlines
1h 30mSFO-ONT
6/7Sat
directUnited Airlines
1h 23mONT-SFO
$343
11/6Tue
directUnited Airlines
1h 32mSFO-ONT
12/6Wed
directUnited Airlines
1h 25mONT-SFO
$370
28/6Fri
multi-stopFrontier
17h 45mORD-ONT
1/7Mon
multi-stopFrontier
25h 04mONT-ORD
$412

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Last minute flights to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Ontario that are departing in the next 10 days.
27/5Mon
multi-stopUnited Airlines
29h 09mSYD-ONT
9/6Sun
multi-stopUnited Airlines
32h 10mONT-SYD
$1,134
27/5Mon
multi-stopUnited Airlines
19h 25mSYD-ONT
9/6Sun
multi-stopUnited Airlines
32h 10mONT-SYD
$1,136
28/5Tue
multi-stopUnited Airlines
27h 28mSYD-ONT
14/6Fri
multi-stopUnited Airlines
43h 35mONT-SYD
$1,206
27/5Mon
multi-stopUnited Airlines
24h 08mSYD-ONT
31/5Fri
multi-stopUnited Airlines
24h 31mONT-SYD
$1,211
26/5Sun
multi-stopUnited Airlines
24h 08mSYD-ONT
30/5Thu
multi-stopUnited Airlines
24h 10mONT-SYD
$1,282
28/5Tue
multi-stopUnited Airlines
23h 33mMEL-ONT
22/9Sun
multi-stopUnited Airlines
20h 30mONT-MEL
$1,473
26/5Sun
multi-stop
36h 55mSYD-ONT
30/5Thu
multi-stop
18h 15mONT-SYD
$2,435
27/5Mon
multi-stopChina Airlines
36h 55mSYD-ONT
30/5Thu
multi-stopChina Airlines
41h 35mONT-SYD
$2,742
27/5Mon
multi-stopChina Airlines
36h 55mSYD-ONT
30/5Thu
multi-stopChina Airlines
47h 15mONT-SYD
$3,047
28/5Tue
multi-stopChina Airlines
44h 35mSYD-ONT
14/6Fri
multi-stopChina Airlines
41h 35mONT-SYD
$3,559

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Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Australia

Cabin classes: