$565 Find Cheap Flights from South Pacific to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from South Pacific to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from South Pacific to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from South Pacific to Ontario

Mon, Sep 22 - Thu, Oct 9
United Airlines Logo
10:20 am - 12:13 pmSYD-ONT
18h 53m1 stop
United Airlines Logo
6:37 pm - 7:55 amONT-SYD
43h 18m2 stops
$865United Airlines
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Fri, Aug 1 - Thu, Aug 14
United Airlines Logo
10:20 am - 12:14 pmSYD-ONT
18h 54m1 stop
United Airlines Logo
6:39 pm - 6:55 amONT-SYD
19h 16m1 stop
$866United Airlines
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Sun, Aug 24 - Sun, Aug 31
Delta Logo
9:25 am - 4:08 pmSYD-ONT
23h 43m2 stops
Delta Logo
6:05 am - 6:35 amONT-SYD
31h 30m2 stops
$973Delta
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Fri, Nov 7 - Sat, Nov 29
China Airlines Logo
8:50 pm - 4:50 pmAKL-ONT
41h 00m2 stops
China Airlines Logo
10:45 pm - 7:10 pmONT-AKL
47h 25m2 stops
$1,042China Airlines
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Tue, Nov 4 - Sat, Nov 15
China Airlines Logo
8:50 pm - 4:50 pmAKL-ONT
41h 00m2 stops
China Airlines Logo
10:45 pm - 7:10 pmONT-AKL
47h 25m2 stops
$1,074China Airlines
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Tue, Nov 11 - Wed, Nov 19
Alaska Airlines Logo
9:40 pm - 5:14 pmSYD-ONT
38h 34m1 stop
Alaska Airlines Logo
9:45 am - 7:45 pmONT-SYD
39h 00m1 stop
$1,095Alaska Airlines
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Mon, Oct 27 - Mon, Dec 1
Delta Logo
1:35 pm - 11:46 pmAKL-ONT
30h 11m2 stops
Delta Logo
6:00 am - 8:35 amONT-AKL
29h 35m2 stops
$1,113Delta
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Sun, Sep 7 - Thu, Sep 11
Alaska Airlines Logo
9:40 pm - 10:44 amSYD-ONT
30h 04m2 stops
Alaska Airlines Logo
8:35 am - 7:45 pmONT-SYD
18h 10m1 stop
$1,183Alaska Airlines
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Mon, Sep 1 - Sun, Sep 14
 Logo
9:55 pm - 6:40 pmPER-ONT
35h 45m2 stops
 Logo
12:45 am - 8:40 pmONT-PER
28h 55m2 stops
$1,261
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Mon, Sep 1 - Sun, Sep 14
 Logo
9:55 pm - 6:40 pmPER-ONT
35h 45m2 stops
 Logo
12:45 am - 8:40 pmONT-PER
28h 55m2 stops
$1,263
Find Deal
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Good to know

Low seasonAugust
High seasonJune
Cheapest flight$565
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Sydney to Ontario

FAQs for booking flights from South Pacific to Ontario

  • How does KAYAK find such low prices on flights from South Pacific to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from South Pacific to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from South Pacific to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from South Pacific is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from South Pacific to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to South Pacific with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from South Pacific to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from South Pacific up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from South Pacific to Ontario

 
Need help choosing which airline to fly with from South Pacific to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8846 reviews
8.1Crew
6.6Food
7.3Comfort
7.7Boarding
7.0Entertainment
Airline reviews

Boarded plane and then delayed 1.5 hours while on the plane

4.0 OkayJake, Jul 2025BIH - SFO
Read more United Airlines reviews

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

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