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Ontario

$396+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
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 octubre 30, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$749
(United Airlines)

One-way from

$396
(Kissandfly.com)

Popular in

December

Cheapest in

February

Average price

$788
Provider with most accurate pricing for Sydney Kingsford Smith-Los Angeles flight deals.
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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. 11% potential increase in price ($108 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 30, 2025.

This SmartFares deal was found by Cheapflights users on 10/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/29:40 pmSYD - ONT
1 stop38h 34mHawaiian Airlines
mié. 11/129:47 amONT - SYD
1 stop38h 58mHawaiian Airlines
Deal found 10/29$726
This SmartFares deal was found by Cheapflights users on 10/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/49:40 pmSYD - ONT
1 stop38h 34mHawaiian Airlines
mié. 11/199:47 amONT - SYD
1 stop38h 58mHawaiian Airlines
Deal found 10/30$731
This United Airlines deal was found by Cheapflights users on 10/30. 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.
lun. 11/312:10 pmSYD - ONT
1 stop19h 27mUnited Airlines
dom. 11/166:38 pmONT - SYD
1 stop19h 37mUnited Airlines
Deal found 10/30$748
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mar. 11/412:10 pmSYD - ONT
2 stops43h 21mUnited Airlines
mié. 11/196:05 amONT - SYD
1 stop29h 55mUnited Airlines
Deal found 10/30$752
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/131:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
lun. 11/246:38 pmONT - MEL
1 stop20h 22mUnited Airlines
Deal found 10/29$790
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mié. 11/511:40 amBNE - ONT
1 stop23h 54mUnited Airlines
mié. 11/196:38 pmONT - BNE
1 stop18h 52mUnited Airlines
Deal found 10/30$792
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mar. 11/41:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
mié. 11/126:38 pmONT - MEL
1 stop20h 22mUnited Airlines
Deal found 10/30$793
This United Airlines deal was found by Cheapflights users on 10/30. 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.
lun. 11/241:00 pmMEL - ONT
1 stop18h 37mUnited Airlines
lun. 12/11:40 pmONT - MEL
1 stop25h 20mUnited Airlines
Deal found 10/30$794
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/712:10 pmSYD - ONT
1 stop19h 27mUnited Airlines
sáb. 11/299:35 pmONT - SYD
2 stops38h 25mUnited Airlines
Deal found 10/29$799
This United Airlines deal was found by Cheapflights users on 10/30. 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.
lun. 12/812:10 pmSYD - ONT
1 stop19h 07mUnited Airlines
sáb. 1/36:39 pmONT - SYD
1 stop19h 36mUnited Airlines
Deal found 10/30$802
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/259:40 pmSYD - ONT
1 stop19h 28mAlaska Airlines
jue. 1/158:13 amONT - SYD
1 stop40h 32mAlaska Airlines
Deal found 10/30$803
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mar. 11/411:40 amBNE - ONT
1 stop18h 57mUnited Airlines
vie. 11/141:29 pmONT - BNE
2 stops24h 01mUnited Airlines
Deal found 10/30$842

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 octubre 30, 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

lun. 11/3

12:10 pm-12:37 pm

1 stop19h 27m

Ontario

dom. 11/16

6:38 pm-9:15 am

1 stop19h 37m

$748

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mar. 11/4

12:10 pm-12:31 pm

2 stops43h 21m

Ontario

mié. 11/19

6:05 am-7:00 am

1 stop29h 55m

$752

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

lun. 12/8

12:10 pm-12:17 pm

1 stop19h 07m

Ontario

mié. 1/21

1:53 pm-6:20 am

1 stop21h 27m

$752

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

mié. 2/18

11:40 am-5:41 pm

1 stop24h 01m

Ontario

lun. 3/9

1:49 pm-6:30 am

1 stop23h 41m

$792

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

mar. 11/18

11:40 am-8:44 pm

2 stops27h 04m

Ontario

lun. 12/29

5:05 am-7:30 am

2 stops56h 25m

$792

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

mié. 2/4

11:40 am-5:43 pm

1 stop24h 03m

Ontario

mié. 2/18

6:37 pm-7:30 am

1 stop18h 53m

$792

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

mar. 2/17

11:40 am-12:38 pm

1 stop18h 58m

Ontario

dom. 3/8

1:45 pm-6:30 am

2 stops23h 45m

$792

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

vie. 11/7

11:50 am-8:44 pm

2 stops27h 54m

Ontario

sáb. 11/29

9:35 pm-7:00 am

2 stops38h 25m

$799

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mar. 11/18

12:10 pm-12:37 pm

1 stop19h 27m

Ontario

vie. 12/5

5:05 am-6:20 am

2 stops30h 15m

$802

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

jue. 12/25

9:40 pm-10:08 pm

1 stop19h 28m

Ontario

jue. 1/15

8:13 am-7:45 pm

1 stop40h 32m

$803

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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, January is the cheapest month in which you can book a flight from South Pacific to Ontario (average of $443). Flying from South Pacific to Ontario in August is currently the most expensive (average of $566). 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 octubre 30, 2025.

When flying from South Pacific to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 46% versus a flight at noon.

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, Alaska Airlines, and China Airlines fly from South Pacific to Ontario in about 19h 27m. The time it takes to get you to your destination can typically vary by up to 21h 33m. 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $419. Alaska Airlines flights start at $434 while deals on United Airlines start at $541 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 Auckland Intl - 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, January is the cheapest month in which you can book a flight from South Pacific to Ontario (average of $443). Flying from South Pacific to Ontario in August is currently the most expensive (average of $566). 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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See prices for flight routes from nearby airports that may be better suited for you.
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