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Cheap flights from Australia to Ontario from $646

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Australia to Ontario

Keep the following information in mind while searching for Australia to Ontario flight deals. Data was last updated 21 February 2025.

Round-trip from

$1,242

One-way from

$646

Popular in

December

Cheapest in

May

Average price

$1,204
United Airlines
  • United Airlines
  • 23/3-13/4
  • 2 total stops
  • 40h 24m total
  • Australia to Ontario
Search Deals
30/4
  • 30/4
  • 1 total stop
  • 23h 05m total
  • Australia to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($335 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($91 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Australia to Ontario

Cheapest flights from Australia to Ontario
Explore the most affordable flight options available from Australia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Sun 23/310:40BNE - ONT
1 stop16h 14mUnited Airlines
Sun 13/413:20ONT - BNE
1 stop24h 10mUnited Airlines
Deal found 20/2$1,242
Tue 4/313:00MEL - ONT
1 stop39h 15mUnited Airlines
Tue 11/306:00ONT - MEL
1 stop33h 00mUnited Airlines
Deal found 20/2$1,325
Fri 21/216:15SYD - ONT
1 stop17h 14mUnited Airlines
Sun 9/318:45ONT - SYD
1 stop20h 30mUnited Airlines
Deal found 20/2$1,345
Sun 23/212:10SYD - ONT
1 stop27h 30mLufthansa
Tue 11/318:45ONT - SYD
1 stop20h 30mLufthansa
Deal found 20/2$1,375
Mon 3/313:00MEL - ONT
1 stop20h 29mBrussels Airlines
Sun 16/318:45ONT - MEL
1 stop20h 15mBrussels Airlines
Deal found 20/2$1,377
Fri 21/221:40SYD - ONT
1 stop19h 10mHawaiian Airlines
Tue 25/209:45ONT - SYD
1 stop39h 00mHawaiian Airlines
Deal found 20/2$1,554
Mon 1/922:10SYD - ONT
1 stop37h 30mChina Airlines
Sun 7/900:45ONT - SYD
1 stop41h 00mChina Airlines
Deal found 20/2$1,798
Wed 3/921:50MEL - ONT
1 stop37h 50mChina Airlines
Tue 9/900:45ONT - MEL
1 stop40h 55mChina Airlines
Deal found 20/2$1,798
Sun 27/406:05ADL - ONT
2 stops22h 40mUnited Airlines
Mon 5/518:48ONT - ADL
2 stops23h 47mUnited Airlines
Deal found 20/2$1,803
Tue 4/1123:10BNE - ONT
1 stop35h 40mChina Airlines
Wed 12/1122:45ONT - BNE
1 stop42h 00mChina Airlines
Deal found 20/2$1,820
Tue 24/606:00OOL - ONT
2 stops33h 45mUnited Airlines
Sun 27/718:43ONT - OOL
2 stops24h 32mUnited Airlines
Deal found 19/2$1,830
Wed 9/421:35PER - ONT
2 stops35h 25mMultiple Airlines
Sat 10/500:10ONT - PER
2 stops50h 00mMultiple Airlines
Deal found 19/2$1,939

Find flights from Australia to Ontario within your budget

Customise your flight search to find flights from Australia to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 21 February 2025.

Fly from

Australia

Fly to

Ontario

Route

Depart

Return

Price

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Sun 23/3

10:40-09:54

1 stop16h 14m

Ontario

Sun 13/4

13:20-06:30

1 stop24h 10m

$1,242

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Tue 4/3

13:00-09:15

1 stop39h 15m

Ontario

Tue 11/3

06:00-09:00

1 stop33h 00m

$1,325

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 7/3

11:50-22:45

2 stops29h 55m

Ontario

Fri 14/3

13:40-09:15

2 stops49h 35m

$1,348

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Mon 3/3

13:00-14:29

1 stop20h 29m

Ontario

Sun 16/3

18:45-09:00

1 stop20h 15m

$1,377

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 27/4

21:40-21:50

1 stop17h 10m

Ontario

Fri 2/5

09:45-19:45

1 stop41h 00m

$1,579

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Fri 14/3

23:20-17:50

1 stop36h 30m

Ontario

Mon 17/3

23:45-12:05

1 stop42h 20m

$1,783

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Sun 27/4

06:05-14:50

2 stops25h 15m

Ontario

Mon 5/5

18:48-11:05

2 stops23h 47m

$1,803

CoolangattaOntario

OOL - ONT

OOLONT

Coolangatta Gold Coast

Tue 24/6

06:00-22:45

2 stops33h 45m

Ontario

Sun 27/7

18:43-12:15

2 stops24h 32m

$1,830

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Thu 1/5

22:50-18:00

1 stop36h 10m

Ontario

Sat 10/5

00:10-10:35

1 stop41h 25m

$1,831

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 27/4

22:10-18:00

1 stop36h 50m

Ontario

Thu 1/5

00:10-10:45

1 stop41h 35m

$1,834

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 44 results
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Best time to book a flight from Australia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Australia with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Australia to Ontario

Get recent, data-driven insights about flights from Australia to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from AU to ONT?

Find hourly flight availability from Australia to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

When flying from Australia to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 21 February 2025.
Get a feel of what it's like to fly with Japan Airlines, China Airlines and Hawaiian Airlines from Australia to Ontario by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Japan Airlines
8.3
Very Good
1,440 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

China Airlines
8.2
Very Good
727 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Hawaiian Airlines
7.9
Good
2,316 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Qatar Airways
7.4
Good
3,609 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

United Airlines
7.4
Good
8,759 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Boarding

8.4

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

Find useful and relevant information for your journey from Australia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Australia?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Australia. Ontario is conveniently located just 4.9 km from Ontario’s city centre.

  • What are the cheapest airlines to fly from Australia to Ontario one-way?

    $759 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Lufthansa and Hawaiian Airlines, with prices starting from $818 and $1,021, respectively.

  • What are the most popular routes from Australia to Ontario?

    While some choose either Melbourne - Ontario or Brisbane - Ontario, Sydney Kingsford Smith - Ontario is the most popular route from Australia to Ontario.

  • Can I find deals for flights from Australia to Ontario that include hotel bookings?

    Yes. In addition to deals on Australia to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Australia to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Ontario.

  • Can I find deals for business class flights from Australia to Ontario?

    Yes. Cheapflights offers flight deals from Australia to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Australia to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Australia to Ontario

Discover the top airline that operate flights from Australia to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,093Average$1,848FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Australia to Ontario?

Cheapflights makes it easy to find Australia to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Australia to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Australia.

Can Cheapflights find flights from Australia to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Australia to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Australia to Ontario become cheaper?

Not ready to book yet? You can track prices for flights from Australia to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

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