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$579 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 9/5. 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
Sun 26/5
Sun 2/6

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 44,979,812 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 - 21:55SYD-ONT
17h 15m1 stop
08:30 - 19:45ONT-SYD
18h 15m1 stop
$1,244Hawaiian Airlines
Find Deal
Tue, 21 May - Thu, 30 May
21:40 - 21:55SYD-ONT
17h 15m1 stop
08:05 - 19:45ONT-SYD
18h 40m1 stop
$1,354Hawaiian Airlines
Find Deal
Tue, 6 Aug - Thu, 12 Sep
21:40 - 19:50SYD-ONT
39h 10m1 stop
08:05 - 19:45ONT-SYD
18h 40m1 stop
$1,363Hawaiian Airlines
Find Deal
Sat, 14 Sep - Wed, 18 Sep
10:20 - 12:45SYD-ONT
19h 25m1 stop
06:20 - 07:00ONT-SYD
31h 40m1 stop
$1,419United Airlines
Find Deal
Thu, 23 May - Wed, 5 Jun
10:20 - 12:45SYD-ONT
19h 25m1 stop
13:55 - 07:00ONT-SYD
24h 05m1 stop
$1,426United Airlines
Find Deal
Mon, 10 Jun - Mon, 17 Jun
15:45 - 21:55MEL-ONT
23h 10m1 stop
10:35 - 16:25ONT-MEL
34h 50m1 stop
$1,431
Find Deal
Wed, 15 May - Tue, 4 Feb
20:00 - 21:55ADL-ONT
42h 25m2 stops
08:10 - 08:55ONT-ADL
32h 15m2 stops
$1,558
Find Deal
Wed, 21 Aug - Thu, 5 Sep
21:35 - 18:05MEL-ONT
37h 30m1 stop
00:10 - 11:45ONT-MEL
41h 35m1 stop
$1,638China Airlines
Find Deal
Wed, 2 Oct - Tue, 22 Oct
22:10 - 18:05SYD-ONT
36h 55m1 stop
00:10 - 10:45ONT-SYD
41h 35m1 stop
$1,644China Airlines
Find Deal
Wed, 18 Sep - Mon, 30 Sep
10:20 - 12:45SYD-ONT
19h 25m1 stop
13:30 - 07:00ONT-SYD
24h 30m1 stop
$1,798Lufthansa
Find Deal
Mon, 17 Jun - Sun, 30 Jun

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 $1,667. 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 $1,460 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 $3,144 and $3,014 respectively. For return trips, the best month to travel is October with an average price of $1,460.

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 $1,617 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 $1,698.

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 05m, Sydney, which takes 13h 35m, Melbourne, which takes 14h 15m, and Adelaide, which takes 16h 50m.

Good to know

Low season

March

High season

November

Cheapest flight

$579
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 8 airlines that fly to Ontario, Southwest offers the most flights, with around 216 per week, followed by Frontier with 120 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, +22 more

Aeromexico, Air Canada, +23 more

Tuesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Wednesday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Saturday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 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, +22 more

Aeromexico, Air Canada, +23 more

Tuesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Wednesday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Thursday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Friday

Aeromexico, Air Canada, Air France, +21 more

Aeromexico, Air Canada, +22 more

Saturday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 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 2325 reviews
7.3entertainment
8.2boarding
7.8comfort
8.6crew
7.2food
Airline reviews

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

10.0 ExcellentVeronica, Apr 2024HNL - SMF
Read more about Hawaiian Airlines reviews

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.

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.

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

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

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Too many fees (but that seems to apply to all airlines nowadays)

the plane was old. the wifi didn’t work. the entertainment was boring and dated. the charging ports were impossible to find. i was mostly ignored by flight attendants that had no problem speaking to the man beside me. i got two drinks the entire time i was on the plane.

Quit making seats narrower and narrower. The guy beside me spilled over in to my seat.

The service was non existent . Crew did very little didn’t even answer call button . Premium economy in this long haul was the worst I have ever experienced . Never again flying with them .

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.
21/5Tue
1 stopHawaiian Airlines
17h 15mSYD-ONT
30/5Thu
1 stopHawaiian Airlines
18h 15mONT-SYD
$1,244
6/8Tue
1 stopHawaiian Airlines
17h 15mSYD-ONT
12/9Thu
1 stopHawaiian Airlines
18h 40mONT-SYD
$1,354
14/9Sat
1 stopHawaiian Airlines
39h 10mSYD-ONT
18/9Wed
1 stopHawaiian Airlines
18h 40mONT-SYD
$1,363
23/5Thu
1 stopUnited Airlines
19h 25mSYD-ONT
5/6Wed
1 stopUnited Airlines
31h 40mONT-SYD
$1,419
10/6Mon
1 stopUnited Airlines
19h 25mSYD-ONT
17/6Mon
1 stopUnited Airlines
24h 05mONT-SYD
$1,426
15/5Wed
1 stop
23h 10mMEL-ONT
4/2Tue
1 stop
34h 50mONT-MEL
$1,431
21/8Wed
2 stops
42h 25mADL-ONT
5/9Thu
2 stops
32h 15mONT-ADL
$1,558
2/10Wed
1 stopChina Airlines
37h 30mMEL-ONT
22/10Tue
1 stopChina Airlines
41h 35mONT-MEL
$1,638
18/9Wed
1 stopChina Airlines
36h 55mSYD-ONT
30/9Mon
1 stopChina Airlines
41h 35mONT-SYD
$1,644
17/6Mon
1 stopLufthansa
19h 25mSYD-ONT
30/6Sun
1 stopLufthansa
24h 30mONT-SYD
$1,798

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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.
9/5Thu
1 stop
22h 45mSYD-ONT
$579
15/9Sun
2 stops
30h 50mSYD-ONT
$866
21/10Mon
1 stop
21h 40mSYD-ONT
$875
28/5Tue
1 stopUnited Airlines
19h 25mSYD-ONT
$878
10/7Wed
1 stopUnited Airlines
24h 33mSYD-ONT
$880
1/9Sun
1 stopChina Airlines
37h 30mSYD-ONT
$1,012
9/10Wed
1 stopChina Airlines
37h 55mSYD-ONT
$1,013
15/8Thu
1 stopHawaiian Airlines
17h 15mSYD-ONT
$1,041
18/7Thu
1 stopHawaiian Airlines
17h 15mSYD-ONT
$1,045
28/5Tue
2 stopsEtihad Airways
47h 54mMEL-ONT
$1,950

Search by stops

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Recent domestic flight deals

18/6Tue
directFrontier
2h 15mPDX-ONT
19/11Tue
directFrontier
2h 13mONT-PDX
$160
13/6Thu
directFrontier
2h 15mPDX-ONT
20/11Wed
directFrontier
2h 13mONT-PDX
$173
15/5Wed
directDelta
2h 39mSEA-ONT
18/5Sat
directDelta
3h 00mONT-SEA
$272
21/5Tue
directUnited Airlines
1h 36mSFO-ONT
22/5Wed
directUnited Airlines
1h 28mONT-SFO
$299
28/5Tue
multi-stopDelta
6h 43mSEA-ONT
1/6Sat
directDelta
3h 01mONT-SEA
$301
27/5Mon
directAlaska Airlines
2h 16mPDX-ONT
30/5Thu
multi-stopAlaska Airlines
4h 29mONT-PDX
$339
23/5Thu
directAlaska Airlines
2h 30mSEA-ONT
27/5Mon
directAlaska Airlines
2h 45mONT-SEA
$348
21/5Tue
multi-stopSouthwest
6h 55mSFO-ONT
22/5Wed
multi-stopSouthwest
8h 45mONT-SFO
$353
21/5Tue
directUnited Airlines
1h 36mSFO-ONT
22/5Wed
directUnited Airlines
1h 28mONT-SFO
$436
5/5Sun
directSouthwest
2h 20mDEN-ONT
7/5Tue
directSouthwest
2h 10mONT-DEN
$481

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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.
27/4Sat
multi-stopHawaiian Airlines
17h 30mSYD-ONT
16/5Thu
multi-stopHawaiian Airlines
40h 45mONT-SYD
$1,417
26/4Fri
multi-stopHawaiian Airlines
17h 30mSYD-ONT
30/4Tue
multi-stopHawaiian Airlines
40h 40mONT-SYD
$1,457
27/4Sat
multi-stopHawaiian Airlines
17h 30mSYD-ONT
1/5Wed
multi-stopHawaiian Airlines
40h 45mONT-SYD
$1,497
30/4Tue
multi-stop
44h 35mSYD-ONT
10/5Fri
multi-stop
35h 40mONT-SYD
$1,746
28/4Sun
multi-stop
26h 35mSYD-ONT
10/5Fri
multi-stop
35h 40mONT-SYD
$1,838
26/4Fri
multi-stopChina Airlines
36h 55mSYD-ONT
29/4Mon
multi-stopChina Airlines
41h 35mONT-SYD
$1,865
26/4Fri
multi-stopChina Airlines
44h 05mSYD-ONT
29/4Mon
multi-stopChina Airlines
41h 35mONT-SYD
$2,043
30/4Tue
multi-stopUnited Airlines
16h 42mSYD-ONT
4/5Sat
multi-stopUnited Airlines
48h 24mONT-SYD
$2,740
30/4Tue
multi-stopUnited Airlines
16h 42mSYD-ONT
4/5Sat
multi-stopUnited Airlines
48h 24mONT-SYD
$2,754
29/4Mon
multi-stopAir Canada
30h 44mSYD-ONT
6/5Mon
multi-stopAir Canada
33h 05mONT-SYD
$5,476

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Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Australia

Cabin classes:

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