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$170+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MLB
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$405
(Delta)

One-way from

$170
(Delta)

Popular in

March

Cheapest in

June

Average price

$411
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. 23% potential increase in price ($155 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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 8/1911:45 amONT - MLB
1 stop8h 44mDelta
Wed 8/205:50 amMLB - ONT
1 stop7h 45mDelta
Deal found 7/28$405
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/1911:59 pmONT - MLB
2 stops14h 09mAmerican Airlines
Wed 8/272:44 pmMLB - ONT
1 stop9h 28mAmerican Airlines
Deal found 7/29$410

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 July 30, 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

Tue 8/19

11:45 am-11:29 pm

1 stop8h 44m

Melbourne

Wed 8/20

5:50 am-10:35 am

1 stop7h 45m

$405

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Tue 8/19

11:59 pm-5:08 pm

2 stops14h 09m

Melbourne

Wed 8/27

2:44 pm-9:12 pm

1 stop9h 28m

$410

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Sat 9/20

11:55 am-11:07 pm

1 stop8h 12m

$170

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Wed 11/26

9:59 am-12:19 am

2 stops11h 20m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 30, 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
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

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.

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

    According to our current data, Delta ($405), and American Airlines ($410) offers the cheapest pricing from Ontario to Melbourne, Florida. Delta is priced at 20% 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.

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$528FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$391Average$696FlexibilityNo cancel feeOn-time71%

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