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$593+ Cheap flights from Ontario (ONT) to Melbourne (MEL)

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 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEL
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/2. 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 12/36:41 pmONT - MEL
1 stop20h 19mUnited Airlines
Tue 12/161:00 pmMEL - ONT
1 stop18h 17mUnited Airlines
Deal found 12/2$949
This United Airlines deal was found by Cheapflights users on 12/1. 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.
Tue 12/26:41 pmONT - MEL
1 stop20h 19mUnited Airlines
Tue 12/91:00 pmMEL - ONT
1 stop18h 17mUnited Airlines
Deal found 12/1$957
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Tue 12/26:41 pmONT - MEL
1 stop20h 19mUnited Airlines
Tue 12/231:00 pmMEL - ONT
1 stop23h 43mUnited Airlines
Deal found 12/2$958
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/46:41 pmONT - MEL
1 stop20h 19mUnited Airlines
Thu 12/111:00 pmMEL - ONT
1 stop18h 18mUnited Airlines
Deal found 12/2$1,058
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/145:05 amONT - MEL
2 stops33h 55mUnited Airlines
Thu 2/121:00 pmMEL - ONT
2 stops26h 50mUnited Airlines
Deal found 12/4$1,114
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/316:00 amONT - MEL
1 stop33h 00mUnited Airlines
Wed 1/141:00 pmMEL - ONT
1 stop23h 43mUnited Airlines
Deal found 12/2$1,116
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/296:39 pmONT - MEL
1 stop20h 21mUnited Airlines
Mon 3/912:00 pmMEL - ONT
1 stop23h 41mUnited Airlines
Deal found 12/3$1,303
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/106:41 pmONT - MEL
1 stop20h 19mUnited Airlines
Sat 1/311:00 pmMEL - ONT
2 stops26h 58mUnited Airlines
Deal found 12/3$1,307
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/86:41 pmONT - MEL
1 stop20h 19mUnited Airlines
Thu 1/81:00 pmMEL - ONT
1 stop23h 43mUnited Airlines
Deal found 12/2$1,308
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/246:00 amONT - MEL
1 stop33h 00mUnited Airlines
Mon 3/912:00 pmMEL - ONT
1 stop23h 41mUnited Airlines
Deal found 12/3$1,310

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 (MEL). 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$957
(United Airlines)

One-way from

$593
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$1,313
Provider with most accurate pricing for Ontario-Melbourne flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Melbourne flights.
Search Deals
From Ontario to Melbourne
Search Deals
One-way flight from Ontario to Melbourne
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 4, 2025.
Use the filters below to find and compare flights from Ontario to Melbourne Airport that are best for you.

Fly from

Ontario

Fly to

Melbourne

Route

Depart

Return

Price

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Tue 5/12

6:53 pm-8:15 am

1 stop20h 22m

Melbourne

Mon 5/18

10:55 am-12:20 pm

1 stop18h 25m

$958

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 2/16

6:37 pm-10:00 am

1 stop20h 23m

Melbourne

Mon 3/2

1:00 pm-5:41 pm

1 stop23h 41m

$958

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Wed 3/4

6:37 pm-10:00 am

1 stop20h 23m

Melbourne

Tue 3/10

12:00 pm-12:18 pm

1 stop18h 18m

$958

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 3/30

5:10 am-9:15 am

2 stops34h 05m

Melbourne

Sun 4/12

10:55 am-12:20 pm

1 stop18h 25m

$962

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Wed 2/11

1:53 pm-10:00 am

1 stop25h 07m

Melbourne

Wed 2/25

1:00 pm-10:57 pm

1 stop28h 57m

$964

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sat 4/4

1:34 pm-8:15 am

2 stops49h 41m

Melbourne

Sun 4/12

10:55 am-5:47 pm

1 stop23h 52m

$976

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sat 1/31

6:32 pm-10:00 am

1 stop20h 28m

Melbourne

Fri 2/6

1:00 pm-11:18 am

1 stop17h 18m

$1,058

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sun 1/4

10:42 am-10:00 am

1 stop28h 18m

Melbourne

Sun 1/25

1:00 pm-11:18 am

1 stop17h 18m

$1,110

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sun 1/4

10:42 am-10:00 am

1 stop28h 18m

Melbourne

Tue 1/27

1:00 pm-5:43 pm

1 stop23h 43m

$1,110

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Wed 1/7

8:00 am-10:00 am

2 stops55h 00m

Melbourne

Wed 1/21

1:00 pm-8:58 pm

2 stops26h 58m

$1,131

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 22 results
1
2
3
  • Most accurate provider: When it comes to deals on Ontario-Melbourne Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Melbourne Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Melbourne Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Melbourne Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Melbourne Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 Airport

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

Currently, April is the cheapest month in which you can book a flight from Ontario to Melbourne Airport (average of $656). Flying from Ontario to Melbourne Airport in December is currently the most expensive (average of $812). 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 December 4, 2025.

When flying from Ontario to Melbourne Airport, 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 22% versus a flight in the afternoon.

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?

    Most people fly from Ontario (ONT) if they book a flight from Ontario to Melbourne. On average, Ontario has 0 outbound flights to Melbourne per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Ontario to Melbourne Airport?

    A quick flight from Ontario to Melbourne Airport can take about 20h 22m. United Airlines provides one of the quickest options available for as low as $958. Airlines will cover a distance of 7966 mi.

  • 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 Airport?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Melbourne Airport (average of $656). Flying from Ontario to Melbourne Airport in December is currently the most expensive (average of $812). 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

Traveling to a place near Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Geelong
Tullamarine
Doncaster

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