ONT

$694 Find Cheap Flights 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 27/3. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
$1,126
United Airlines
Mon 23/2Sun 8/3
SYD - ONT • 1 stop
Cheapest one-way flight
$694
United Airlines
Fri 27/3
BNE - ONT • 1 stop
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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 return flight deals to Ontario

Mon, 23 Feb - Sun, 8 Mar
United Airlines Logo
12:10 - 12:38
SYD
-
ONT
19h 28m
1 stop
United Airlines Logo
18:37 - 06:20
ONT
-
SYD
17h 43m
1 stop
$1,126United Airlines
Mon, 23 Feb - Sun, 8 Mar
United Airlines Logo
12:10 - 12:38
SYD
-
ONT
19h 28m
1 stop
United Airlines Logo
18:37 - 09:15
ONT
-
SYD
20h 38m
1 stop
$1,127United Airlines
Mon, 23 Feb - Sun, 8 Mar
United Airlines Logo
12:10 - 12:38
SYD
-
ONT
19h 28m
1 stop
United Airlines Logo
18:37 - 09:15
ONT
-
SYD
20h 38m
1 stop
$1,129United Airlines
Mon, 23 Feb - Sun, 8 Mar
United Airlines Logo
12:10 - 12:38
SYD
-
ONT
19h 28m
1 stop
United Airlines Logo
18:37 - 06:20
ONT
-
SYD
17h 43m
1 stop
$1,131United Airlines
Tue, 24 Feb - Tue, 3 Mar
United Airlines Logo
14:00 - 20:50
SYD
-
ONT
25h 50m
2 stops
United Airlines Logo
13:45 - 09:15
ONT
-
SYD
24h 30m
2 stops
$1,133United Airlines
Sun, 8 Mar - Wed, 25 Mar
Air New Zealand Logo
12:10 - 11:18
SYD
-
ONT
18h 08m
1 stop
Air New Zealand Logo
18:37 - 06:20
ONT
-
SYD
17h 43m
1 stop
$1,189Air New Zealand
Thu, 23 Apr - Wed, 9 Dec
Multiple Airlines Logo
16:00 - 21:10
BNE
-
ONT
22h 10m
2 stops
Multiple Airlines Logo
09:00 - 10:30
ONT
-
BNE
55h 30m
2 stops
$1,833Multiple Airlines
Tue, 23 Jun - Fri, 28 Aug
Multiple Airlines Logo
09:05 - 22:20
PER
-
ONT
28h 15m
2 stops
Multiple Airlines Logo
08:00 - 19:10
ONT
-
PER
44h 10m
2 stops
$1,855Multiple Airlines
Sun, 29 Mar - Sat, 4 Apr
China Airlines Logo
18:30 - 18:00
ADL
-
ONT
41h 00m
2 stops
China Airlines Logo
00:10 - 17:45
ONT
-
ADL
49h 05m
2 stops
$2,963China Airlines
Sun, 29 Mar - Sun, 5 Apr
Air Canada Logo
22:20 - 20:36
ADL
-
ONT
39h 46m
3 stops
Air Canada Logo
06:00 - 11:50
ONT
-
ADL
37h 20m
3 stops
$3,788Air Canada
Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends into flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What are the most popular airlines flying to Ontario?

The most popular airline among KAYAK users flying to Ontario is Qantas Airways, followed by Fiji Airways and United Airlines.

Good to know – Book Cheap Ontario Plane Tickets

Cheapest flight$694
Flight from Brisbane to Ontario

When to book flights to Ontario

Are your dates flexible? Find out the best times to travel to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Ontario based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Ontario flights

  • How far is Ontario Airport from central Ontario?

    The distance between Ontario Airport and the city centre of Ontario is 5 km.

  • What is the name of Ontario’s airport?

    Ontario is served by Ontario Airport, also commonly referred to as Ontario or Ontario Intl. The airport code is ONT.

  • How does KAYAK find such low prices on flights 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 to Ontario.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top airline flying to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 9283 reviews
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

2.0 MediocreAnnie Caroline, Feb 2026
SFO - LAX
Read more United Airlines reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario