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$869+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
21 févr. — 28 févr.1
1 adult
1 adult, Economy, 0 bags

Flights to Ontario in 2026

Enter your travel dates to find the best prices.

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 22 janvier 2026.

ven. 29/520:45
SYD
-
ONT
1 stop18h 22m
Multiple Airlines
dim. 7/609:30
ONT
-
SYD
1 stop40h 20m
Multiple Airlines
Deal found 20/1$1,450
dim. 15/309:40
SYD
-
ONT
2 stops32h 11m
Delta
lun. 23/313:20
ONT
-
SYD
2 stops24h 05m
Delta
Deal found 20/1$1,465
mar. 3/221:40
SYD
-
ONT
1 stop19h 48m
Multiple Airlines
dim. 15/208:41
ONT
-
SYD
1 stop40h 04m
Multiple Airlines
Deal found 21/1$1,475
mer. 28/121:40
SYD
-
ONT
1 stop19h 48m
Multiple Airlines
mer. 4/211:53
ONT
-
SYD
2 stops36h 52m
Multiple Airlines
Deal found 21/1$1,509
sam. 25/420:45
SYD
-
ONT
1 stop17h 25m
Multiple Airlines
mer. 13/516:03
ONT
-
SYD
2 stops33h 47m
Multiple Airlines
Deal found 20/1$1,522
mar. 28/410:20
SYD
-
ONT
1 stop18h 54m
United Airlines
lun. 4/513:40
ONT
-
SYD
2 stops48h 15m
United Airlines
Deal found 19/1$1,540
mar. 10/312:10
SYD
-
ONT
1 stop18h 08m
United Airlines
mer. 18/313:50
ONT
-
SYD
2 stops22h 30m
United Airlines
Deal found 20/1$1,543
lun. 9/212:10
SYD
-
ONT
1 stop18h 08m
United Airlines
lun. 23/218:37
ONT
-
SYD
1 stop19h 38m
United Airlines
Deal found 21/1$1,549
lun. 26/112:10
SYD
-
ONT
1 stop18h 08m
United Airlines
lun. 2/213:53
ONT
-
SYD
1 stop21h 27m
United Airlines
Deal found 21/1$1,550
lun. 26/112:10
SYD
-
ONT
1 stop18h 08m
United Airlines
dim. 8/218:39
ONT
-
SYD
1 stop19h 36m
United Airlines
Deal found 21/1$1,553
dim. 17/520:45
SYD
-
ONT
1 stop18h 22m
Multiple Airlines
ven. 29/509:30
ONT
-
SYD
1 stop40h 20m
Multiple Airlines
Deal found 21/1$1,564
sam. 7/314:15
SYD
-
ONT
2 stops26h 29m
Delta
sam. 14/306:00
ONT
-
SYD
2 stops30h 05m
Delta
Deal found 21/1$1,570

Find flight deals to Ontario

Find the latest flights to Ontario in 2026, 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 22 janvier 2026.

Return from

$1,017

One-way from

$869

Popular in

December

Cheapest in

October

Average price

$1,272
Fiji Airways
  • Fiji Airways
  • 13/3-24/3
  • 2 total stops
  • 36h 00m total
  • Sydney to Los Angeles
Search Deals
12/2
  • 12/2
  • 1 total stop
  • 19h 35m total
  • Sydney to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
Search Deals

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 22 janvier 2026.
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

dim. 15/3

09:40-23:51

2 stops32h 11m

Ontario

lun. 23/3

13:20-07:25

2 stops24h 05m

$1,465

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mar. 3/2

21:40-22:28

1 stop19h 48m

Ontario

dim. 15/2

08:41-19:45

1 stop40h 04m

$1,475

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

jeu. 5/2

21:40-22:28

1 stop19h 48m

Ontario

dim. 15/2

08:41-19:45

1 stop40h 04m

$1,475

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

sam. 25/4

20:45-21:10

1 stop17h 25m

Ontario

mer. 13/5

16:03-18:50

2 stops33h 47m

$1,522

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

lun. 13/4

10:20-21:50

2 stops52h 30m

Ontario

lun. 20/4

13:27-06:55

1 stop24h 28m

$1,543

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mar. 10/3

12:10-12:18

1 stop18h 08m

Ontario

mer. 18/3

13:50-06:20

2 stops22h 30m

$1,550

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

lun. 16/3

12:10-12:18

1 stop18h 08m

Ontario

lun. 6/4

18:49-06:55

1 stop19h 06m

$1,550

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

lun. 16/3

12:10-12:18

1 stop18h 08m

Ontario

lun. 27/4

18:49-06:55

1 stop19h 06m

$1,550

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mer. 18/2

12:10-12:48

1 stop19h 38m

Ontario

mar. 24/3

18:37-09:15

1 stop20h 38m

$1,555

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

dim. 17/5

20:45-22:07

1 stop18h 22m

Ontario

ven. 29/5

09:30-18:50

1 stop40h 20m

$1,564

Flights are sorted by cheapest return flights first.

Deals found on 22/1

Showing 1-10 of 22 results
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2
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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

What are the cheapest airlines that fly to Ontario?

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

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 22 janvier 2026.
Read reviews from past customers who have flown United Airlines to the United States. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,191 reviews
Check prices

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,191 reviews
United Airlines
7.4
Good
9,191 reviews
Check prices

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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, Melbourne offers the quickest one-way flight (17 hours 18 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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Economy 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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