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$535+ 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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEL
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap 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 February 24, 2026.

This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1012:22 pm
ONT
-
MEL
2 stops27h 08m
American Airlines
Tue 3/1712:00 pm
MEL
-
ONT
2 stops28h 07m
American Airlines
Deal found 2/20$931
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Sun 2/226:37 pm
ONT
-
MEL
1 stop20h 23m
United Airlines
Sat 3/71:00 pm
MEL
-
ONT
1 stop18h 18m
United Airlines
Deal found 2/21$1,004
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Thu 2/266:37 pm
ONT
-
MEL
1 stop20h 23m
United Airlines
Wed 3/1112:00 pm
MEL
-
ONT
1 stop18h 18m
United Airlines
Deal found 2/23$1,005
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 3/16:37 pm
ONT
-
MEL
1 stop20h 23m
United Airlines
Wed 3/41:00 pm
MEL
-
ONT
1 stop18h 48m
United Airlines
Deal found 2/20$1,013
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Fri 5/15:00 am
ONT
-
MEL
2 stops34h 15m
United Airlines
Mon 5/410:55 am
MEL
-
ONT
2 stops26h 41m
United Airlines
Deal found 2/22$1,017
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Fri 3/271:40 pm
ONT
-
MEL
1 stop25h 20m
United Airlines
Sun 4/510:55 am
MEL
-
ONT
1 stop28h 50m
United Airlines
Deal found 2/21$1,019
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Sun 3/85:15 am
ONT
-
MEL
2 stops33h 45m
United Airlines
Thu 3/1212:00 pm
MEL
-
ONT
2 stops42h 48m
United Airlines
Deal found 2/23$1,032
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Fri 4/101:43 pm
ONT
-
MEL
2 stops49h 32m
United Airlines
Tue 4/1410:55 am
MEL
-
ONT
2 stops50h 41m
United Airlines
Deal found 2/23$1,046
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:37 pm
ONT
-
MEL
1 stop20h 23m
Multiple Airlines
Tue 3/1012:00 pm
MEL
-
ONT
1 stop18h 18m
Multiple Airlines
Deal found 2/20$1,062
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Wed 9/166:53 pm
ONT
-
MEL
1 stop20h 22m
United Airlines
Wed 9/3010:55 am
MEL
-
ONT
1 stop18h 25m
United Airlines
Deal found 2/23$1,067

Find 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 February 24, 2026.

Round-trip from

$931
(American Airlines)

One-way from

$535
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$845
From Ontario to Melbourne
Search Deals
One-way flight from Ontario to Melbourne
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 24, 2026.
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

Tue 3/10

6:37 pm-9:00 am

1 stop20h 23m

Melbourne

Tue 3/17

12:00 pm-12:18 pm

1 stop18h 18m

$1,013

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Fri 5/1

7:03 pm-8:15 am

1 stop20h 12m

Melbourne

Mon 5/4

10:55 am-5:52 pm

1 stop23h 57m

$1,013

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sat 3/14

6:37 pm-9:00 am

1 stop20h 23m

Melbourne

Sun 3/22

12:00 pm-12:18 pm

1 stop18h 18m

$1,013

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sun 3/8

5:15 am-9:00 am

2 stops33h 45m

Melbourne

Sun 3/15

12:00 pm-12:18 pm

1 stop18h 18m

$1,017

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Wed 5/6

6:59 pm-8:15 am

1 stop20h 16m

Melbourne

Sun 5/10

7:00 am-9:41 am

2 stops19h 41m

$1,250

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sat 3/21

6:37 pm-9:00 am

1 stop20h 23m

Melbourne

Fri 3/27

9:00 am-12:18 pm

2 stops21h 18m

$1,250

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Thu 3/19

6:37 pm-9:00 am

1 stop20h 23m

$535

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 5/11

1:30 pm-8:15 am

1 stop25h 45m

$539

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Tue 3/31

5:10 am-9:15 am

2 stops34h 05m

$539

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sun 3/8

5:15 am-9:00 am

2 stops33h 45m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 15 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, April is the cheapest month in which you can book a flight from Ontario to Melbourne (average of $671). Flying from Ontario to Melbourne in December is currently the most expensive (average of $817). 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.

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 20h 23m. 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, April is the cheapest month in which you can book a flight from Ontario to Melbourne (average of $671). Flying from Ontario to Melbourne in December is currently the most expensive (average of $817). 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.

See more FAQs

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