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$190+ Cheap flights from Ontario to Melbourne, FL (ONT - MLB)

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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MLB
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 (MLB). 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 17, 2025.

Round-trip from

$359
(Delta)

One-way from

$190
(Delta)

Popular in

March

Cheapest in

June

Average price

$462
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. 22% potential increase in price ($147 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 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 17, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:25 pmONT - MLB
1 stop9h 10mDelta
Tue 11/186:48 pmMLB - ONT
1 stop7h 16mDelta
Deal found 9/15$359
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:29 pmONT - MLB
1 stop9h 14mDelta
Thu 12/256:00 amMLB - ONT
1 stop7h 40mDelta
Deal found 9/15$405
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:45 amONT - MLB
1 stop8h 03mDelta
Thu 12/256:00 amMLB - ONT
1 stop7h 40mDelta
Deal found 9/15$433
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 11/1412:55 pmONT - MLB
2 stops19h 30mAmerican Airlines
Tue 11/187:20 amMLB - ONT
2 stops11h 43mAmerican Airlines
Deal found 9/15$459
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:55 amONT - MLB
1 stop8h 12mDelta
Sun 10/55:50 amMLB - ONT
1 stop7h 52mDelta
Deal found 9/16$468
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:29 pmONT - MLB
1 stop9h 14mDelta
Thu 12/256:00 amMLB - ONT
1 stop7h 40mDelta
Deal found 9/15$479
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:10 pmONT - MLB
2 stops17h 59mDelta
Thu 12/256:00 amMLB - ONT
1 stop7h 40mDelta
Deal found 9/15$498
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:29 pmONT - MLB
1 stop9h 14mDelta
Fri 12/266:47 pmMLB - ONT
1 stop7h 12mDelta
Deal found 9/15$505
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/110:54 amONT - MLB
2 stops9h 08mAmerican Airlines
Sun 10/51:37 pmMLB - ONT
1 stop10h 34mAmerican Airlines
Deal found 9/16$531
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:45 amONT - MLB
1 stop8h 03mDelta
Fri 12/266:47 pmMLB - ONT
1 stop7h 12mDelta
Deal found 9/15$533

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 17, 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 - MLB

ONTMLB

Ontario

Fri 11/14

10:25 pm-10:35 am

1 stop9h 10m

Melbourne

Tue 11/18

6:48 pm-11:04 pm

1 stop7h 16m

$359

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Tue 12/23

10:29 pm-10:43 am

1 stop9h 14m

Melbourne

Thu 12/25

6:00 am-10:40 am

1 stop7h 40m

$405

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Wed 12/24

11:45 am-10:48 pm

1 stop8h 03m

Melbourne

Thu 12/25

6:00 am-10:40 am

1 stop7h 40m

$433

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Fri 11/14

12:55 pm-11:25 am

2 stops19h 30m

Melbourne

Tue 11/18

7:20 am-4:03 pm

2 stops11h 43m

$459

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Wed 10/1

11:55 am-11:07 pm

1 stop8h 12m

Melbourne

Sun 10/5

5:50 am-10:42 am

1 stop7h 52m

$468

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Sun 12/21

10:29 pm-10:43 am

1 stop9h 14m

Melbourne

Thu 12/25

6:00 am-10:40 am

1 stop7h 40m

$479

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Tue 12/23

10:29 pm-10:43 am

1 stop9h 14m

Melbourne

Fri 12/26

6:47 pm-10:59 pm

1 stop7h 12m

$505

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Wed 10/1

10:54 am-11:02 pm

2 stops9h 08m

Melbourne

Sun 10/5

1:37 pm-9:11 pm

1 stop10h 34m

$531

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Mon 12/22

5:10 pm-10:43 am

2 stops14h 33m

Melbourne

Fri 12/26

6:47 pm-10:59 pm

1 stop7h 12m

$544

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Fri 1/16

10:30 pm-10:35 am

1 stop9h 05m

$190

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 19 results
1
2

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, Florida?

Currently, September is the cheapest month in which you can book a flight from Ontario to Melbourne, Florida (average of $305). Flying from Ontario to Melbourne, Florida in March is currently the most expensive (average of $418). 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.

Reviews of airlines servicing Melbourne

Get insights into the airlines that provide service to Melbourne. 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 Melbourne. Reviews last updated September 17, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Ontario to Melbourne to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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.

  • How long is the flight from Ontario to Melbourne, Florida?

    A quick flight from Ontario to Melbourne, Florida can take about 9h 10m. Delta provides one of the quickest options available for as low as $359. Ontario and Melbourne, Florida are separated by a distance of 2211 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Ontario to Melbourne, Florida round-trip?

    According to our current data, Delta ($278), and American Airlines ($391) offers the cheapest pricing from Ontario to Melbourne, Florida. Delta is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • 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, Florida?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Melbourne, Florida (average of $305). Flying from Ontario to Melbourne, Florida in March is currently the most expensive (average of $418). 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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Top 2 airlines flying from Ontario to Melbourne

Discover the top 2 airlines that operate flights from Ontario to Melbourne. 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 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$528FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$391Average$696FlexibilityNo cancel feeOn-time71%

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