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Find cheap flights to Ontario from $759

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 26/3. 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
Thu 18/4
Thu 25/4

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 47,600,107 times on KAYAK, and here's why:

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Cheap flight deals to Ontario

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
21:40 - 19:50SYD-ONT
39h 10m1 stop
09:05 - 19:45ONT-SYD
40h 40m1 stop
$1,304Hawaiian Airlines
Find Deal
Fri, 13 Sep - Fri, 18 Oct
21:40 - 22:05SYD-ONT
17h 25m1 stop
10:00 - 19:45ONT-SYD
40h 45m1 stop
$1,315Hawaiian Airlines
Find Deal
Thu, 2 May - Wed, 15 May
21:40 - 22:05SYD-ONT
17h 25m1 stop
10:00 - 19:45ONT-SYD
40h 45m1 stop
$1,316Hawaiian Airlines
Find Deal
Thu, 2 May - Wed, 15 May
10:20 - 12:15SYD-ONT
18h 55m1 stop
18:35 - 07:00ONT-SYD
19h 25m1 stop
$1,582Lufthansa
Find Deal
Thu, 25 Jul - Tue, 13 Aug
10:55 - 23:04MEL-ONT
29h 09m1 stop
10:42 - 08:15ONT-MEL
28h 33m1 stop
$1,594United Airlines
Find Deal
Mon, 6 May - Sun, 19 May
10:20 - 10:01SYD-ONT
16h 41m1 stop
05:15 - 07:00ONT-SYD
32h 45m2 stops
$1,604United Airlines
Find Deal
Tue, 7 May - Tue, 21 May
21:35 - 18:05MEL-ONT
37h 30m1 stop
00:10 - 10:45ONT-MEL
41h 35m1 stop
$1,607China Airlines
Find Deal
Sun, 12 May - Sat, 18 May
21:35 - 18:05MEL-ONT
37h 30m1 stop
00:10 - 10:45ONT-MEL
41h 35m1 stop
$1,679China Airlines
Find Deal
Fri, 10 May - Sat, 18 May
10:20 - 10:01SYD-ONT
16h 41m1 stop
13:30 - 07:00ONT-SYD
24h 30m1 stop
$1,786
Find Deal
Mon, 6 May - Sat, 25 May
18:00 - 18:05MEL-ONT
41h 05m2 stops
00:10 - 10:45ONT-MEL
41h 35m1 stop
$1,850
Find Deal
Mon, 6 May - Sat, 18 May

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 $1,654. On the other hand, the most expensive day to fly is Tuesday, where prices are $2,856 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 $1,449 on average for one-way flights. On the other hand, the most expensive months are January and July, where the average cost of tickets from Australia is $3,120 and $2,991 respectively. For return trips, the best month to travel is October with an average price of $1,449.

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 at night, when flights cost $1,691 on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,831.

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 16h 50m.

How many long-haul flights are there to Ontario each week?

Each week there are around 7 long-haul flights (6-12 hour flight duration), 82 medium-haul (3-6 hour flight duration) and 820 short-haul (up to 3 hour flight duration) flights to Ontario. The most long-haul flights depart from Taipei City Taiwan Taoyuan Intl Airport.

Good to know

Low season

March

High season

November

Cheapest flight

$759
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 17% 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 9 airlines that fly to Ontario, Southwest offers the most flights, with around 417 per week, followed by American Airlines with 129 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, +22 more

Aeromexico, Air Canada, +23 more

Wednesday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 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, +22 more

Aeromexico, Air Canada, +23 more

Wednesday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 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

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 KAYAK reviews.
8.0
Hawaiian AirlinesOverall score based on 2358 reviews
78comfort
80overall
73entertainment
87crew
82boarding
72food
Airline reviews

Was unable to check in online within 24 hours of departure

Read more about Hawaiian Airlines

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.

The food was lame for an almost 5 hour flight, but overall I had a good experience

VERY short notice (<24 hours) flight delay by 6 hours. Had to reschedule and pay more to book with another airlines.

Take off was one hour late! They were not able to supply a meal for a 6 hour flight!

Staff was friendly. It was a bit confusing with the regulations for Hawaiian on your website stating that each passenger has one carryon bag. There were people with a backpack, luggage and a shopping bag or purse they carried on the plane. It's probably because you charge for luggage, but doesn't anyone abide by the standard you set for carry on luggage? All in all the flight was pleasant.

More movie and tv show selections. Maybe more music selections as well. The food was not great on that flight. On a longer flight like that one, it would have been nice to be offered another drink, even if it was just water.

The seats were comfortable but the airport was terrible and our luggage was left behind. I had to wait 2 hours to put in my claim and waited 2 days for my luggage to be delivered.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

Over two hours wait to get wheelchair assistance from arrival to the departure gate for LA was unreasonable even though there appreared to be heavy demand.

The seat is too hard and my back and bottom are having servers pain

I was duped into thinking it was a United Airlines flight when in fact United had nothing to do with it.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

There was no lounge for passengers waiting before boarding the aircraft at F65, so passengers are just sitting on the floor or just spread everywhere the premises before boarding.

All went fine. Boarding was efficient, staff was really friendly, and we were kept up to date on any changes to our itinerary. My only note for improvement is that on this particular plane, the recline in economy class was negligible. I know it's a coach seat, but I had another UA flight (SFO to BWI) and the seat was more comfortable with better recline.

Really good experience with a redeye flight from SFO to BWI. Boarding was efficient, plane was comfortable and newer than others, lots of audio and video choices, and staff was great. I appreciate United's service.

The flight and crew were fine. The entertainment- the sound was so bad through the headphones I could barely understand it and it was a show I had seen before. The food might have been fine but having to have an account with united in order to access the app in order to pay for the food was rage inducing. I had entered my credit card info at home and logged in as guest but that wouldn’t allow the “wallet” tab to open in the app. And then the wifi was so bad that it took about 45 minutes to fully log in and get all the info working at which time I missed the food. You shouldn’t have to give your address, email and phone number in order to get a hamburger.

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.
13/9Fri
1 stopHawaiian Airlines
39h 10mSYD-ONT
18/10Fri
1 stopHawaiian Airlines
40h 40mONT-SYD
$1,304
2/5Thu
1 stopHawaiian Airlines
17h 25mSYD-ONT
15/5Wed
1 stopHawaiian Airlines
40h 45mONT-SYD
$1,315
2/5Thu
1 stopHawaiian Airlines
17h 25mSYD-ONT
15/5Wed
1 stopHawaiian Airlines
40h 45mONT-SYD
$1,316
25/7Thu
1 stopLufthansa
18h 55mSYD-ONT
13/8Tue
1 stopLufthansa
19h 25mONT-SYD
$1,582
6/5Mon
1 stopUnited Airlines
29h 09mMEL-ONT
19/5Sun
1 stopUnited Airlines
28h 33mONT-MEL
$1,594
7/5Tue
1 stopUnited Airlines
16h 41mSYD-ONT
21/5Tue
2 stopsUnited Airlines
32h 45mONT-SYD
$1,604
12/5Sun
1 stopChina Airlines
37h 30mMEL-ONT
18/5Sat
1 stopChina Airlines
41h 35mONT-MEL
$1,607
10/5Fri
1 stopChina Airlines
37h 30mMEL-ONT
18/5Sat
1 stopChina Airlines
41h 35mONT-MEL
$1,679
6/5Mon
1 stop
16h 41mSYD-ONT
25/5Sat
1 stop
24h 30mONT-SYD
$1,786
6/5Mon
2 stops
41h 05mMEL-ONT
18/5Sat
1 stop
41h 35mONT-MEL
$1,850

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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.
26/3Tue
1 stopHawaiian Airlines
18h 20mSYD-ONT
$759
29/5Wed
1 stop
21h 50mMEL-ONT
$955
15/4Mon
1 stop
22h 50mSYD-ONT
$993
16/5Thu
1 stopChina Airlines
36h 15mBNE-ONT
$1,015
24/5Fri
1 stopChina Airlines
36h 15mBNE-ONT
$1,022
23/7Tue
2 stopsUnited Airlines
27h 28mSYD-ONT
$1,431
8/7Mon
1 stopUnited Airlines
18h 55mSYD-ONT
$1,438
6/5Mon
2 stopsQatar Airways
41h 43mSYD-ONT
$2,587
3/5Fri
3 stopsQatar Airways
44h 58mSYD-ONT
$2,790
27/6Thu
2 stopsAir Canada
30h 25mSYD-ONT
$3,349

Search by stops

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Recent domestic flight deals

14/5Tue
directFrontier
1h 29mSFO-ONT
18/5Sat
multi-stopFrontier
7h 29mONT-SFO
$187
14/5Tue
multi-stopFrontier
11h 25mSFO-ONT
19/5Sun
directFrontier
1h 26mONT-SFO
$203
17/4Wed
directDelta
2h 45mSEA-ONT
24/4Wed
directDelta
2h 55mONT-SEA
$209
10/4Wed
directAlaska Airlines
2h 38mSEA-ONT
19/4Fri
directAlaska Airlines
2h 46mONT-SEA
$224
26/4Fri
directDelta
2h 45mSEA-ONT
4/5Sat
directDelta
2h 53mONT-SEA
$239
18/4Thu
directAlaska Airlines
2h 33mSEA-ONT
19/4Fri
directAlaska Airlines
2h 38mONT-SEA
$262
4/5Sat
multi-stopJetBlue
12h 16mBOS-ONT
8/5Wed
multi-stopJetBlue
11h 04mONT-BOS
$363
16/4Tue
directJetBlue
6h 06mJFK-ONT
22/4Mon
directJetBlue
5h 20mONT-JFK
$407
21/6Fri
directUnited Airlines
1h 32mSFO-ONT
28/6Fri
directUnited Airlines
1h 20mONT-SFO
$576
13/4Sat
multi-stopUnited Airlines
10h 33mEWR-ONT
20/4Sat
multi-stopUnited Airlines
12h 16mONT-EWR
$603

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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.
23/3Sat
multi-stopHawaiian Airlines
18h 20mSYD-ONT
27/3Wed
multi-stopHawaiian Airlines
39h 50mONT-SYD
$1,947
22/3Fri
multi-stopHawaiian Airlines
18h 20mSYD-ONT
26/3Tue
multi-stopHawaiian Airlines
39h 50mONT-SYD
$1,966
20/3Wed
multi-stopChina Airlines
37h 00mMEL-ONT
15/7Mon
multi-stopChina Airlines
46h 20mONT-MEL
$2,234
20/3Wed
multi-stopChina Airlines
48h 35mMEL-ONT
15/7Mon
multi-stopChina Airlines
46h 20mONT-MEL
$2,572
20/3Wed
multi-stop
23h 15mMEL-ONT
20/7Sat
multi-stop
37h 45mONT-MEL
$2,622
20/3Wed
multi-stopUnited Airlines
23h 31mSYD-ONT
24/3Sun
multi-stopUnited Airlines
17h 58mONT-SYD
$2,756
22/3Fri
multi-stopUnited Airlines
24h 57mSYD-ONT
26/3Tue
multi-stopUnited Airlines
20h 53mONT-SYD
$2,832
21/3Thu
multi-stopAmerican Airlines
53h 04mSYD-ONT
25/3Mon
multi-stopAmerican Airlines
45h 20mONT-SYD
$2,927
20/3Wed
multi-stop
23h 15mMEL-ONT
16/7Tue
multi-stop
37h 45mONT-MEL
$3,023
20/3Wed
multi-stopAmerican Airlines
45h 12mADL-ONT
23/3Sat
multi-stopAmerican Airlines
40h 56mONT-ADL
$13,116

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Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Australia

Cabin classes: