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$169+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MLB
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 11, 2025.

Round-trip from

$341
(Delta)

One-way from

$169
(Delta)

Popular in

March

Cheapest in

June

Average price

$482
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. 21% potential increase in price ($145 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 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. 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 11/1010:25 pmONT - MLB
1 stop9h 10mDelta
Sat 11/156:00 amMLB - ONT
1 stop7h 40mDelta
Deal found 9/10$341
This Delta deal was found by Cheapflights users on 9/10. 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 11/910:25 pmONT - MLB
1 stop9h 10mDelta
Sat 11/156:00 amMLB - ONT
1 stop7h 40mDelta
Deal found 9/10$388
This Delta deal was found by Cheapflights users on 9/8. 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 10/2410:00 pmONT - MLB
1 stop9h 26mDelta
Sun 10/266:00 amMLB - ONT
1 stop7h 26mDelta
Deal found 9/8$498
This Delta deal was found by Cheapflights users on 9/8. 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 10/2410:00 pmONT - MLB
1 stop9h 26mDelta
Mon 10/272:33 pmMLB - ONT
1 stop10h 49mDelta
Deal found 9/8$503
This Delta deal was found by Cheapflights users on 9/11. 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 9/1911:55 amONT - MLB
1 stop8h 12mDelta
Sun 9/215:50 amMLB - ONT
1 stop7h 52mDelta
Deal found 9/11$573
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 10/2311:36 amONT - MLB
1 stop8h 17mDelta
Sun 10/266:00 amMLB - ONT
1 stop7h 26mDelta
Deal found 9/8$582
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 10/2311:36 amONT - MLB
1 stop8h 17mDelta
Mon 10/272:33 pmMLB - ONT
1 stop10h 49mDelta
Deal found 9/8$587
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 11/611:36 amONT - MLB
1 stop8h 17mDelta
Sat 11/156:00 amMLB - ONT
1 stop7h 40mDelta
Deal found 9/10$588
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 10/2311:59 pmONT - MLB
2 stops11h 16mAmerican Airlines
Mon 10/271:42 pmMLB - ONT
1 stop9h 25mAmerican Airlines
Deal found 9/8$702

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 11, 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

Mon 11/10

10:25 pm-10:35 am

1 stop9h 10m

Melbourne

Sat 11/15

6:00 am-10:40 am

1 stop7h 40m

$341

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Sun 11/9

10:25 pm-10:35 am

1 stop9h 10m

Melbourne

Sat 11/15

6:00 am-10:40 am

1 stop7h 40m

$388

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Fri 10/24

10:00 pm-10:26 am

1 stop9h 26m

Melbourne

Sun 10/26

6:00 am-10:26 am

1 stop7h 26m

$498

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Fri 10/24

10:00 pm-10:26 am

1 stop9h 26m

Melbourne

Mon 10/27

2:33 pm-10:22 pm

1 stop10h 49m

$503

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Thu 10/23

11:36 am-10:53 pm

1 stop8h 17m

Melbourne

Sun 10/26

6:00 am-10:26 am

1 stop7h 26m

$582

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Thu 10/23

11:36 am-10:53 pm

1 stop8h 17m

Melbourne

Mon 10/27

2:33 pm-10:22 pm

1 stop10h 49m

$587

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Thu 11/6

11:36 am-10:53 pm

1 stop8h 17m

Melbourne

Sat 11/15

6:00 am-10:40 am

1 stop7h 40m

$588

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Thu 10/23

11:59 pm-2:15 pm

2 stops11h 16m

Melbourne

Mon 10/27

1:42 pm-8:07 pm

1 stop9h 25m

$702

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Fri 10/24

11:59 pm-1:12 pm

2 stops10h 13m

Melbourne

Mon 10/27

1:42 pm-8:07 pm

1 stop9h 25m

$702

OntarioMelbourne

ONT - MLB

ONTMLB

Ontario

Tue 11/18

4:49 pm-10:35 am

2 stops14h 46m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 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.

How much does it cost to fly round-trip from Ontario to Melbourne, Florida?

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 11, 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
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

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 $341. 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 ($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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$538FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$391Average$696FlexibilityNo cancel feeOn-time71%

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