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$695 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 1/9. 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
ndz. 25/8
ndz. 1/9

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 50,552,696 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
21:40 - 22:20SYD-ONT
19h 40m1 stop
10:35 - 19:45ONT-SYD
38h 10m1 stop
$1,300Hawaiian Airlines
Find Deal
pt., 17 sty - wt., 4 lut
21:40 - 21:00SYD-ONT
17h 20m1 stop
10:05 - 19:45ONT-SYD
38h 40m1 stop
$1,311Hawaiian Airlines
Find Deal
czw., 17 paź - wt., 5 lis
10:20 - 13:21SYD-ONT
20h 01m1 stop
18:20 - 07:00ONT-SYD
43h 40m2 stops
$1,406United Airlines
Find Deal
pon., 16 wrz - pon., 30 wrz
10:20 - 13:21SYD-ONT
20h 01m1 stop
18:35 - 07:00ONT-SYD
19h 25m1 stop
$1,409United Airlines
Find Deal
sob., 21 wrz - sob., 28 wrz
23:10 - 17:50BNE-ONT
35h 40m1 stop
22:45 - 10:45ONT-BNE
42h 00m1 stop
$1,670China Airlines
Find Deal
czw., 31 paź - sob., 30 lis
22:50 - 18:05BNE-ONT
36h 15m1 stop
22:45 - 10:45ONT-BNE
42h 00m1 stop
$1,693China Airlines
Find Deal
czw., 19 wrz - wt., 19 lis
23:15 - 18:40PER-ONT
34h 25m2 stops
00:10 - 23:25ONT-PER
32h 15m2 stops
$1,840
Find Deal
czw., 5 wrz - wt., 17 wrz
22:50 - 18:05BNE-ONT
36h 15m1 stop
22:45 - 15:30ONT-BNE
46h 45m2 stops
$1,878
Find Deal
pt., 20 wrz - ndz., 17 lis
22:45 - 23:54PER-ONT
40h 09m2 stops
10:00 - 18:45ONT-PER
41h 45m2 stops
$2,641Qatar Airways
Find Deal
pon., 14 paź - pon., 28 paź
22:45 - 19:32PER-ONT
35h 47m2 stops
20:59 - 18:45ONT-PER
53h 46m2 stops
$2,694Qatar Airways
Find Deal
pt., 18 paź - pon., 4 lis

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 Monday where tickets can be as cheap as $1,371. On the other hand, the most expensive day to fly is Tuesday, where prices are $2,666 on average.

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 $1,416 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 $2,141.

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.

Good to know

Low season

March

High season

November

Cheapest flight

$695
Best time to beat the crowds (5% 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 Airport from central Ontario?

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

  • What is the name of Ontario’s airport?

    Ontario is served by Ontario Airport, 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 286 per week, followed by Frontier with 117 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 Airport, 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, +23 more

Aeromexico, Air Canada, +24 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, +23 more

Aeromexico, Air Canada, +24 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.
7.9
Hawaiian AirlinesOverall score based on 2298 reviews
7.3Entertainment
7.8Comfort
7.1Food
8.2Boarding
8.6Crew
Airline reviews

Transferring from International to Domestic/Mainland was a PITA; Hawaiian could not handle the rebooking of bags quickly after customs, etc. Eventually took it over to Terminal One where they were able to do it quickly. The "snack" or whatever on the flight was - Pepperoni Bagel - and for anyone who doesn't eat Pepperoni, tough luck. I guess they consider it too difficult to have Plain Bagel for anyone else. We don't count; they don't want our business. Then I got to SJC and found they had smashed one corner of my (brand new) suitcase such that it wouldn't roll because that corner collapses inward. They explain to me was SOL, as "they can do anything to the outside and they're not responsible". So if you fly Hawaiian Air, expect to have to replace luggage routinely. They don't want my business, they won't get my business.

2.0 MediocreAnonymous, July 2024HNL - SJC
Read more about Hawaiian Airlines reviews

Transferring from International to Domestic/Mainland was a PITA; Hawaiian could not handle the rebooking of bags quickly after customs, etc. Eventually took it over to Terminal One where they were able to do it quickly. The "snack" or whatever on the flight was - Pepperoni Bagel - and for anyone who doesn't eat Pepperoni, tough luck. I guess they consider it too difficult to have Plain Bagel for anyone else. We don't count; they don't want our business. Then I got to SJC and found they had smashed one corner of my (brand new) suitcase such that it wouldn't roll because that corner collapses inward. They explain to me was SOL, as "they can do anything to the outside and they're not responsible". So if you fly Hawaiian Air, expect to have to replace luggage routinely. They don't want my business, they won't get my business.

Awful kids kicking seats and screaming the whole flight and parents didn’t say a damn thing!

Kayak reserved return seating for me but did not book it. I paid $115 extra and my seat was not reserved.

seat cushions could be replaced. the foam bottoms out (I am 170 lb man). more lower back support would help. I tend not to recline the seat, so it would help if the seats were very slightly inclined; makes it hard to sleep without toppling forwards.

Great flight. Had free internet for whole flight. Made it so much more enjoyable

The jet bridge electricity was out. We were boarding in the dark. No air-conditioning and it was extremely hot. Every person that came out of that jet bridge into the aircraft was profusely sweating. Truthfully, sitting in first class, it was no Hawaiian hospitality. Just a bunch of senior flight attendants are doing their routine over and over.

The in flight speakers little touches of humor were entertaining.

The flight left and arrived on time. the only food offered on the 5+ hour flight was a cheese sandwich. Unlike Alaska Airlines there was no information on the website regarding food at all or any option to purchasse in advance. Otherwise, it was an excellent flight.

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.

loved the bulkhead seats with all the extra leg room! The initial dinner was excellent unfortunately the last meal was unsatisfactory. Our salad was partially frozen and the pizza roll was 90% dough. My only complaint

See my previous comments. I was probably booked in business but was moved to economy

Boarding was efficient. Crew was not pleasant and skipped me during a round of beverage service. Older plane with no seat back screens and I couldn’t connect to wifi or their entertainment offerings.

My flight was delayed for a whole day, so I lost a day of my vacation.

I was refused to used the toilet closes to my seat and had to go to the back of the plane .. it was difficult for me I’m a wheelchair customer

No entertainment system or wifi on a 12 hour flight. They failed to include GF meals And snacks as requested on my ticket so I had very little available to eat. Crew seemed indecisive.

Ability to watch movies.No earbud sound system.Marginal beverage service.Unexplained late take off resulting in VERY tight connection in LA which proved maximally stressful.

Ability to watch movies.No earbud sound system.Marginal beverage service.

Great service; lots of water offered, frequent trash cleanup; tasty food

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

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.
17/1pt.
1 stopHawaiian Airlines
19h 40mSYD-ONT
4/2wt.
1 stopHawaiian Airlines
38h 10mONT-SYD
$1,300
17/10czw.
1 stopHawaiian Airlines
17h 20mSYD-ONT
5/11wt.
1 stopHawaiian Airlines
38h 40mONT-SYD
$1,311
16/9pon.
1 stopUnited Airlines
20h 01mSYD-ONT
30/9pon.
2 stopsUnited Airlines
43h 40mONT-SYD
$1,406
21/9sob.
1 stopUnited Airlines
20h 01mSYD-ONT
28/9sob.
1 stopUnited Airlines
19h 25mONT-SYD
$1,409
31/10czw.
1 stopChina Airlines
35h 40mBNE-ONT
30/11sob.
1 stopChina Airlines
42h 00mONT-BNE
$1,670
19/9czw.
1 stopChina Airlines
36h 15mBNE-ONT
19/11wt.
1 stopChina Airlines
42h 00mONT-BNE
$1,693
5/9czw.
2 stops
34h 25mPER-ONT
17/9wt.
2 stops
32h 15mONT-PER
$1,840
20/9pt.
1 stop
36h 15mBNE-ONT
17/11ndz.
2 stops
46h 45mONT-BNE
$1,878
14/10pon.
2 stopsQatar Airways
40h 09mPER-ONT
28/10pon.
2 stopsQatar Airways
41h 45mONT-PER
$2,641
18/10pt.
2 stopsQatar Airways
35h 47mPER-ONT
4/11pon.
2 stopsQatar Airways
53h 46mONT-PER
$2,694

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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.
1/9ndz.
1 stopHawaiian Airlines
17h 15mSYD-ONT
$695
8/9ndz.
1 stopHawaiian Airlines
17h 15mSYD-ONT
$697
7/9sob.
1 stop
22h 35mSYD-ONT
$862
11/9śr.
2 stops
26h 45mSYD-ONT
$870
28/8śr.
1 stopUnited Airlines
16h 47mSYD-ONT
$911
21/8śr.
1 stopUnited Airlines
20h 01mSYD-ONT
$914
23/10śr.
1 stopChina Airlines
37h 55mSYD-ONT
$1,047
17/10czw.
1 stopChina Airlines
37h 55mSYD-ONT
$1,048
9/10śr.
2 stopsQatar Airways
35h 47mPER-ONT
$1,560
12/1ndz.
3 stopsQatar Airways
42h 30mBNE-ONT
$2,682

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Search by price

Recent domestic flight deals

9/8pt.
directFrontier
1h 22mSFO-ONT
11/8ndz.
directFrontier
1h 26mONT-SFO
$134
13/8wt.
multi-stopFrontier
12h 13mSFO-ONT
17/8sob.
directFrontier
1h 27mONT-SFO
$154
10/9wt.
directAlaska Airlines
2h 35mSEA-ONT
11/9śr.
directAlaska Airlines
2h 38mONT-SEA
$209
26/9czw.
directAlaska Airlines
2h 35mSEA-ONT
1/10wt.
directAlaska Airlines
2h 45mONT-SEA
$225
5/9czw.
directDelta
1h 45mSLC-ONT
7/9sob.
directDelta
1h 45mONT-SLC
$243
21/8śr.
directDelta
2h 47mSEA-ONT
25/8ndz.
directDelta
2h 46mONT-SEA
$255
24/9wt.
multi-stopSouthwest
11h 55mDEN-ONT
25/9śr.
multi-stopSouthwest
7h 50mONT-DEN
$313
24/9wt.
directUnited Airlines
2h 17mDEN-ONT
25/9śr.
directUnited Airlines
2h 18mONT-DEN
$327
25/9śr.
directUnited Airlines
2h 17mDEN-ONT
27/9pt.
directUnited Airlines
2h 18mONT-DEN
$356
24/9wt.
multi-stopSouthwest
4h 15mDEN-ONT
25/9śr.
multi-stopSouthwest
9h 55mONT-DEN
$367

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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.
30/7wt.
multi-stopUnited Airlines
24h 08mSYD-ONT
3/8sob.
multi-stopUnited Airlines
43h 35mONT-SYD
$1,748
26/7pt.
multi-stopUnited Airlines
18h 48mSYD-ONT
30/7wt.
multi-stopUnited Airlines
19h 25mONT-SYD
$1,823
27/7sob.
multi-stopUnited Airlines
18h 55mSYD-ONT
8/8czw.
multi-stopUnited Airlines
19h 25mONT-SYD
$1,900
30/7wt.
multi-stopUnited Airlines
22h 40mADL-ONT
6/8wt.
multi-stopUnited Airlines
28h 48mONT-ADL
$1,996
30/7wt.
multi-stopUnited Airlines
18h 45mBNE-ONT
6/8wt.
multi-stopUnited Airlines
43h 05mONT-BNE
$2,048
29/7pon.
multi-stop
41h 40mMEL-ONT
15/8czw.
multi-stop
41h 00mONT-MEL
$5,584
30/7wt.
multi-stopChina Airlines
36h 50mBNE-ONT
5/8pon.
multi-stopChina Airlines
40h 50mONT-BNE
$5,870
29/7pon.
multi-stop
34h 24mBNE-ONT
6/8wt.
multi-stop
30h 45mONT-BNE
$6,088
27/7sob.
multi-stopQatar Airways
40h 30mSYD-ONT
9/8pt.
multi-stopQatar Airways
42h 10mONT-SYD
$6,780
28/7ndz.
multi-stopQatar Airways
49h 20mPER-ONT
11/8ndz.
multi-stopQatar Airways
41h 35mONT-PER
$18,705

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Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Australia

Cabin classes: