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Ontario

$377+ Cheap flights from South Pacific to Ontario (ONT)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from South Pacific to Ontario

Keep the following information in mind while searching for South Pacific to Ontario flight deals. Data was last updated September 11, 2025.

Round-trip from

$707
(lol.travel)

One-way from

$377
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$867
From South Pacific to Ontario
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One-way flight from South Pacific to Ontario
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Highest demand for flights based on searches. 13% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 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 South Pacific to Ontario

Cheapest flights from South Pacific to Ontario
Explore the most affordable flight options available from South Pacific to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This lol.travel 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:20 amSYD - ONT
1 stop18h 53mUnited Airlines
Sun 10/191:53 pmONT - SYD
1 stop24h 02mUnited Airlines
Deal found 9/10$707
This Delta deal was found by Cheapflights users on 9/9. 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 10/2310:25 amSYD - ONT
2 stops31h 14mDelta
Wed 10/296:00 amONT - SYD
2 stops31h 30mDelta
Deal found 9/9$736
This lol.travel 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/31:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Mon 11/176:38 pmONT - MEL
1 stop20h 22mUnited Airlines
Deal found 9/10$738
This lol.travel 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:30 amBNE - ONT
1 stop18h 43mUnited Airlines
Sun 10/121:53 pmONT - BNE
1 stop23h 37mUnited Airlines
Deal found 9/11$743
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:20 amSYD - ONT
1 stop18h 53mUnited Airlines
Wed 9/246:50 pmONT - SYD
1 stop19h 05mUnited Airlines
Deal found 9/10$751
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/3010:30 amBNE - ONT
2 stops21h 32mUnited Airlines
Tue 10/146:36 pmONT - BNE
1 stop18h 54mUnited Airlines
Deal found 9/9$790
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:40 amBNE - ONT
1 stop23h 54mUnited Airlines
Mon 12/296:39 pmONT - BNE
1 stop18h 51mUnited Airlines
Deal found 9/10$792
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:30 amBNE - ONT
1 stop24h 10mUnited Airlines
Tue 10/146:36 pmONT - BNE
1 stop18h 54mUnited Airlines
Deal found 9/11$793
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/811:55 amMEL - ONT
1 stop18h 18mUnited Airlines
Wed 10/156:36 pmONT - MEL
1 stop20h 39mUnited Airlines
Deal found 9/10$794
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:30 amBNE - ONT
2 stops21h 32mUnited Airlines
Tue 11/116:38 pmONT - BNE
1 stop18h 52mUnited Airlines
Deal found 9/11$794
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Tue 11/111:33 pmONT - MEL
2 stops25h 27mUnited Airlines
Deal found 9/10$795
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
Wed 11/121:33 pmONT - MEL
2 stops25h 27mUnited Airlines
Deal found 9/11$797

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Pacific to Ontario 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 South Pacific to Ontario that are best for you.

Fly from

South Pacific

Fly to

Ontario

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 10/6

11:20 am-12:13 pm

1 stop18h 53m

Ontario

Sun 10/19

6:36 pm-7:55 am

1 stop19h 19m

$750

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 10/1

10:20 am-5:23 pm

2 stops24h 03m

Ontario

Sun 11/30

6:05 am-7:00 am

1 stop29h 55m

$752

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Mon 9/29

10:30 am-12:13 pm

1 stop18h 43m

Ontario

Sun 10/12

8:16 pm-6:30 am

1 stop17h 14m

$791

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Mon 11/3

1:00 pm-12:37 pm

1 stop18h 37m

Ontario

Mon 11/17

6:38 pm-10:00 am

1 stop20h 22m

$792

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 10/21

10:30 am-3:02 pm

2 stops21h 32m

Ontario

Wed 11/19

6:38 pm-7:30 am

1 stop18h 52m

$792

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 11/18

11:40 am-8:44 pm

2 stops27h 04m

Ontario

Mon 12/29

5:05 am-7:30 am

2 stops32h 25m

$792

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Wed 10/8

11:55 am-12:13 pm

1 stop18h 18m

Ontario

Wed 10/15

6:36 pm-9:15 am

1 stop20h 39m

$794

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Thu 10/2

10:30 am-12:13 pm

1 stop18h 43m

Ontario

Sat 11/1

7:00 am-7:30 am

2 stops55h 30m

$794

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Mon 11/24

11:40 am-8:44 pm

2 stops27h 04m

Ontario

Mon 12/1

8:38 pm-7:30 am

1 stop16h 52m

$794

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Mon 11/3

11:40 am-12:37 pm

1 stop18h 57m

Ontario

Tue 11/11

6:38 pm-7:30 am

1 stop18h 52m

$794

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from South Pacific to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from South Pacific 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 South Pacific to Ontario

What is the cheapest month to book a flight from South Pacific to Ontario?

Currently, August is the cheapest month in which you can book a flight from South Pacific to Ontario (average of $246). Flying from South Pacific to Ontario in March is currently the most expensive (average of $328). 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 SP to ONT?

Find hourly flight availability from South Pacific to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from South Pacific to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from South Pacific to Ontario. 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 into for flights to Ontario from South Pacific?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from South Pacific.

  • How long is the flight from South Pacific to Ontario?

    Airlines like United Airlines and Delta fly from South Pacific to Ontario in about 18h 53m. The time it takes to get you to your destination can typically vary by up to 18h 53m. The distance between South Pacific and Ontario is about 7534 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from South Pacific to Ontario one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $422. United Airlines flights start at $499 while deals on Delta start at $514 one-way.

  • What are the most popular routes from South Pacific to Ontario?

    The most popular flight routes from South Pacific to Ontario are Sydney Kingsford Smith - Ontario, Melbourne - Ontario and Brisbane - Ontario.

  • Can I find deals for flights from South Pacific to Ontario that include hotel bookings?

    Yes. In addition to deals on South Pacific to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Pacific to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Pacific to Ontario.

  • Can I find deals for business class flights from South Pacific to Ontario?

    Yes. Cheapflights offers flight deals from South Pacific to Ontario 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 South Pacific to Ontario?

    Currently, August is the cheapest month in which you can book a flight from South Pacific to Ontario (average of $246). Flying from South Pacific to Ontario in March is currently the most expensive (average of $328). 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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Alternative routes for South Pacific to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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