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$543+ Cheap flights from Ontario (ONT) to Melbourne

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Ontario to Melbourne

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Melbourne (ME1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$1,195
(United Airlines)

One-way from

$543
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,188
From Ontario to Melbourne
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One-way flight from Ontario to Melbourne
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Highest demand for flights based on searches. 17% potential increase in price ($221 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Melbourne

Cheapest flights from Ontario to Melbourne
Explore the most affordable flight options available from Ontario to Melbourne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This lol.travel deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/26:38 pmONT - MEL
1 stop20h 22mUnited Airlines
Sun 11/161:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Deal found 9/11$1,212
This lol.travel deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/26:38 pmONT - MEL
1 stop20h 22mUnited Airlines
Tue 11/181:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Deal found 9/9$1,215
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:10 amONT - MEL
3 stops35h 20mMultiple Airlines
Thu 10/301:25 amMEL - ONT
2 stops34h 25mMultiple Airlines
Deal found 9/9$1,237
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:10 amONT - MEL
2 stops29h 55mMultiple Airlines
Tue 10/281:25 amMEL - ONT
2 stops34h 25mMultiple Airlines
Deal found 9/9$1,248
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:38 pmONT - MEL
1 stop20h 22mUnited Airlines
Mon 11/171:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Deal found 9/10$1,297
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:38 pmONT - MEL
1 stop20h 22mUnited Airlines
Wed 11/191:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Deal found 9/9$1,298
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:40 pmONT - MEL
1 stop25h 20mUnited Airlines
Tue 11/181:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Deal found 9/11$1,305
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:05 amONT - MEL
2 stops33h 55mUnited Airlines
Sun 12/71:00 pmMEL - ONT
1 stop18h 18mUnited Airlines
Deal found 9/10$1,309
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/912:10 amONT - MEL
2 stops29h 55mMultiple Airlines
Sun 10/191:25 amMEL - ONT
2 stops34h 35mMultiple Airlines
Deal found 9/10$1,323

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Melbourne 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Ontario to Melbourne that are best for you.

Fly from

Ontario

Fly to

Melbourne

Route

Depart

Return

Price

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 3/2

7:15 pm-10:00 am

1 stop19h 45m

Melbourne

Fri 3/13

12:00 pm-8:17 pm

2 stops26h 17m

$1,199

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 11/3

6:38 pm-10:00 am

1 stop20h 22m

Melbourne

Wed 11/19

1:00 pm-12:37 pm

1 stop18h 37m

$1,298

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Tue 1/13

1:53 pm-10:00 am

1 stop25h 07m

Melbourne

Sat 2/7

1:00 pm-12:14 pm

1 stop18h 14m

$1,355

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Tue 1/13

6:39 pm-10:00 am

1 stop20h 21m

Melbourne

Fri 2/6

1:00 pm-12:14 pm

1 stop18h 14m

$1,355

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 1/5

6:39 pm-10:00 am

1 stop20h 21m

Melbourne

Mon 1/19

1:00 pm-8:58 pm

2 stops26h 58m

$1,384

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sun 11/16

6:38 pm-10:00 am

1 stop20h 22m

Melbourne

Mon 12/1

1:00 pm-10:51 pm

1 stop28h 51m

$1,386

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Fri 10/31

6:38 pm-9:00 am

1 stop20h 22m

Melbourne

Fri 11/7

1:00 pm-12:37 pm

1 stop18h 37m

$1,404

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Fri 1/30

5:05 am-10:00 am

2 stops33h 55m

Melbourne

Sun 2/8

1:00 pm-12:14 pm

1 stop18h 14m

$1,434

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 10/20

6:36 pm-9:15 am

1 stop20h 39m

Melbourne

Tue 1/20

1:00 pm-12:14 pm

1 stop18h 14m

$1,455

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Tue 10/21

6:36 pm-9:15 am

1 stop20h 39m

Melbourne

Wed 11/5

1:00 pm-8:44 pm

2 stops26h 44m

$1,459

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 20 results
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Best time to book a flight from Ontario to Melbourne

Have a flexible travel schedule? Discover the best time to fly to Melbourne from Ontario with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Melbourne

What is the cheapest month to book a flight from Ontario to Melbourne?

Currently, March is the cheapest month in which you can book a flight from Ontario to Melbourne (average of $1,071). Flying from Ontario to Melbourne in December is currently the most expensive (average of $1,774). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Ontario to Melbourne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Ontario to Melbourne, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Melbourne. 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 from for flights from Ontario to Melbourne?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Melbourne. You should not have trouble finding flights to Melbourne from Ontario; the airport handles an average of 0 outbound flights to Melbourne per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Ontario airport to Melbourne. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Melbourne?

    There are many flights that can get you from Ontario to Melbourne in 19h 45m. Fly via United Airlines to get the fastest option. There are 7966 mi between Ontario and Melbourne.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Ontario to Melbourne?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Melbourne (average of $1,071). Flying from Ontario to Melbourne in December is currently the most expensive (average of $1,774). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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