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$320+ 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MLB
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
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 16, 2025.

This Delta deal was found by Cheapflights users on 12/15. 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 12/2411:15 amONT - MLB
1 stop8h 39mDelta
Sun 12/286:47 pmMLB - ONT
1 stop7h 36mDelta
Deal found 12/15$639
This Delta deal was found by Cheapflights users on 12/14. 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 16mDelta
Thu 12/2511:30 amMLB - ONT
2 stops14h 03mDelta
Deal found 12/14$644
This Delta deal was found by Cheapflights users on 12/14. 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 12/2411:15 amONT - MLB
1 stop8h 39mDelta
Thu 12/2511:30 amMLB - ONT
2 stops14h 03mDelta
Deal found 12/14$692
This Delta deal was found by Cheapflights users on 12/14. 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 12/1910:25 pmONT - MLB
1 stop9h 20mDelta
Sat 12/272:51 pmMLB - ONT
1 stop7h 59mDelta
Deal found 12/14$719
This Delta deal was found by Cheapflights users on 12/15. 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 12/227:05 amONT - MLB
1 stop7h 57mDelta
Sat 1/36:47 pmMLB - ONT
1 stop7h 36mDelta
Deal found 12/15$735
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/199:53 amONT - MLB
2 stops11h 19mAmerican Airlines
Sat 12/271:47 pmMLB - ONT
1 stop10h 11mAmerican Airlines
Deal found 12/15$840
This Delta deal was found by Cheapflights users on 12/14. 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 12/267:05 amONT - MLB
1 stop7h 57mDelta
Sun 12/286:47 pmMLB - ONT
1 stop7h 36mDelta
Deal found 12/14$892

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 (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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$366
(Delta)

One-way from

$320
(Delta)

Popular in

March

Cheapest in

June

Average price

$548
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. 17% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($26 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 16, 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 2/6

10:30 pm-10:30 am

1 stop9h 00m

Melbourne

Sat 2/7

3:13 pm-9:05 pm

1 stop8h 52m

$366

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Thu 2/5

10:30 pm-10:30 am

1 stop9h 00m

Melbourne

Sun 2/8

6:00 am-11:31 am

1 stop8h 31m

$419

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Sun 1/4

10:29 pm-10:30 am

1 stop9h 01m

Melbourne

Sun 1/11

3:15 pm-9:05 pm

1 stop8h 50m

$579

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Wed 12/24

11:15 am-10:54 pm

1 stop8h 39m

Melbourne

Sun 12/28

6:47 pm-11:23 pm

1 stop7h 36m

$639

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Tue 12/23

10:29 pm-10:45 am

1 stop9h 16m

Melbourne

Thu 12/25

11:30 am-10:33 pm

2 stops14h 03m

$644

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Thu 1/15

11:59 pm-3:51 pm

2 stops12h 52m

Melbourne

Sun 1/18

7:00 am-4:05 pm

2 stops12h 05m

$645

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Wed 12/24

11:15 am-10:54 pm

1 stop8h 39m

Melbourne

Thu 12/25

11:30 am-10:33 pm

2 stops14h 03m

$692

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Sat 2/7

10:30 pm-10:30 am

1 stop9h 00m

Melbourne

Mon 2/9

3:13 pm-9:05 pm

1 stop8h 52m

$700

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Fri 12/19

10:25 pm-10:45 am

1 stop9h 20m

Melbourne

Sat 12/27

2:51 pm-7:50 pm

1 stop7h 59m

$719

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Mon 12/22

7:05 am-6:02 pm

1 stop7h 57m

Melbourne

Sat 1/3

6:47 pm-11:23 pm

1 stop7h 36m

$735

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 21 results
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Compare providers for flights from Ontario to Melbourne

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Melbourne in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Melbourne, Florida flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Melbourne, Florida flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Melbourne, Florida flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Melbourne, Florida 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, Florida 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

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

Currently, December is the cheapest month in which you can book a flight from Ontario to Melbourne, Florida (average of $69). Flying from Ontario to Melbourne, Florida in November is currently the most expensive (average of $164). 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 December 16, 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
7.9
Good
8,008 reviews

Food

7.3

Crew

8.5

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

7.9

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
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Food

7.3

Crew

8.5

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

7.9

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
11,049 reviews
Delta
7.9
Good
8,008 reviews

Food

7.3

Crew

8.5

Boarding

8.1

Entertainment

7.9

Overall

7.9

Comfort

7.9

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. Delta provides one of the quickest options available for as low as $366. Ontario and Melbourne, Florida are separated by a distance of 2211 mi.

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

    According to our current data, Delta ($338), and American Airlines ($388) offers the cheapest pricing from Ontario to Melbourne, Florida. Delta is priced at 34% 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, December is the cheapest month in which you can book a flight from Ontario to Melbourne, Florida (average of $69). Flying from Ontario to Melbourne, Florida in November is currently the most expensive (average of $164). 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$487FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$388Average$697FlexibilityNo cancel feeOn-time71%

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