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$858+ Cheap flights to Ontario

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
20 Apr — 27 Apr1
1 adult

Flights to Ontario in 2025

Find the latest flights to Ontario in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 15 April 2025.

Return from

$1,074

One-way from

$858

Popular in

December

Cheapest in

May

Average price

$1,416
Fiji Airways
  • Fiji Airways
  • 23/4-28/4
  • 2 total stops
  • 35h 30m total
  • Sydney to Los Angeles
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30/5
  • 30/5
  • 2 total stops
  • 47h 26m total
  • Sydney to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($335 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($93 potential savings vs. average return price).
Search Deals
Average for return flights in April 2025
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Find flight deals to Ontario

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 15 April 2025.

Wed 29/1012:10SYD - ONT
1 stop19h 00mUnited Airlines
Sat 8/1115:15ONT - SYD
1 stop23h 00mUnited Airlines
Deal found 14/4$1,498
Thu 8/510:20SYD - ONT
1 stop24h 41mLufthansa
Wed 21/518:48ONT - SYD
1 stop19h 07mLufthansa
Deal found 15/4$1,618
Thu 13/1121:40SYD - ONT
1 stop19h 15mHawaiian Airlines
Fri 14/1109:50ONT - SYD
1 stop38h 55mHawaiian Airlines
Deal found 14/4$1,691
Thu 8/522:10SYD - ONT
1 stop36h 50mChina Airlines
Tue 20/501:40ONT - SYD
1 stop40h 05mChina Airlines
Deal found 15/4$1,721
Thu 29/516:20SYD - ONT
1 stop22h 35mMultiple Airlines
Thu 5/606:00ONT - SYD
2 stops39h 40mMultiple Airlines
Deal found 13/4$1,986
Thu 29/509:25SYD - ONT
2 stops31h 17mDelta
Thu 5/610:01ONT - SYD
2 stops27h 34mDelta
Deal found 13/4$2,252
Wed 29/1010:20SYD - ONT
2 stops22h 21mAir Canada
Sat 8/1113:55ONT - SYD
2 stops24h 40mAir Canada
Deal found 14/4$2,345

Cheapflights Fare Finder

Locate flights to Ontario that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 15 April 2025.
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sat 27/9

10:20-21:56

2 stops52h 36m

Ontario

Sun 7/12

05:40-06:20

2 stops29h 40m

$1,498

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 8/5

10:20-18:01

1 stop24h 41m

Ontario

Wed 21/5

18:48-06:55

1 stop19h 07m

$1,618

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 8/5

22:10-18:00

1 stop36h 50m

Ontario

Tue 20/5

01:40-10:45

1 stop40h 05m

$1,721

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 29/5

16:20-21:55

1 stop22h 35m

Ontario

Thu 5/6

06:00-14:40

2 stops39h 40m

$1,986

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sat 3/5

21:40-21:50

1 stop17h 10m

Ontario

Fri 16/5

09:50-19:45

1 stop40h 55m

$2,041

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 29/5

09:25-23:42

2 stops31h 17m

Ontario

Thu 5/6

10:01-06:35

2 stops27h 34m

$2,252

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 29/5

09:20-22:45

2 stops30h 25m

Ontario

Thu 5/6

05:10-07:20

3 stops33h 10m

$3,056

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 8/10

21:45-22:37

2 stops42h 52m

Ontario

Wed 5/11

11:30-18:50

2 stops36h 20m

$3,336

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 30/5

16:20-22:46

2 stops47h 26m

$858

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 22/5

22:10-18:00

1 stop36h 50m

$1,089

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 15 results
1
2

Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.
Estimated return 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 to Ontario

How long is the flight to Ontario?

On average, a flight from Sydney to Ontario takes 17 hours 10 minutes. Flights to Ontario from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Ontario?

The most popular airline flying from Sydney to Ontario is United Airlines.

United Airlines

United Airlines

From $798

What are the cheapest airlines that fly to Ontario?

The cheapest airline flying from Sydney to Ontario is United Airlines.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 15 April 2025.
Read through reviews of airlines servicing Ontario, such as Japan Airlines, China Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Food

7.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Japan Airlines
8.3
Very Good
1,440 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Food

7.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
China Airlines
8.2
Very Good
729 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Food

7.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Delta
8.0
Very Good
7,916 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Food

7.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Hawaiian Airlines
7.9
Good
2,375 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Food

7.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Qatar Airways
7.4
Good
3,551 reviews
Japan Airlines
8.3
Very Good
1,440 reviews
Check prices

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Food

7.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

FAQs about flying to Ontario

  • What airport do you fly into for flights to Ontario?

    Most people fly into Ontario (ONT) if they book a flight to Ontario. Ontario is conveniently located just 4.9 km from Ontario’s city centre.

  • Can I find cheaper flights to Ontario if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ontario?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Ontario.

  • Where does the fastest flight to Ontario depart from?

    For those looking to save time traveling to Ontario, Sydney Kingsford Smith offers the quickest one-way flight (17 hours 10 minutes).

  • Does Ontario have car hire?

    Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ontario?

    Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

See more FAQs

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First Class
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How does Cheapflights help users find flights to Ontario?

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Why should you use Cheapflights to find cheap flight tickets to Ontario?

Cheapflights helps you find that perfect flight to Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Ontario flexibly with Cheapflights today.

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Yes! Start tracking prices for Ontario flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

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