ONT

$706 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 20/1. 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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
$1,201
United Airlines
Thu 26/2Wed 4/3
BNE - ONT • 1 stop
Cheapest one-way flight
$710
United Airlines
Tue 20/1
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

Thu, 26 Feb - Wed, 4 Mar
United Airlines Logo
11:40 - 12:38
BNE
-
ONT
18h 58m1 stop
United Airlines Logo
18:37 - 07:30
ONT
-
BNE
18h 53m1 stop
$1,201United Airlines
Sat, 7 Feb - Sat, 7 Mar
United Airlines Logo
11:40 - 12:17
BNE
-
ONT
18h 37m1 stop
United Airlines Logo
18:37 - 07:30
ONT
-
BNE
18h 53m1 stop
$1,207United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
11:40 - 17:41
BNE
-
ONT
24h 01m1 stop
United Airlines Logo
06:09 - 07:30
ONT
-
BNE
31h 21m1 stop
$1,209United Airlines
Fri, 27 Feb - Tue, 17 Mar
Multiple Airlines Logo
21:40 - 22:15
SYD
-
ONT
19h 35m1 stop
Multiple Airlines Logo
08:45 - 19:45
ONT
-
SYD
41h 00m1 stop
$1,431Multiple Airlines
Fri, 6 Feb - Fri, 13 Feb
Hawaiian Airlines Logo
21:40 - 22:28
SYD
-
ONT
19h 48m1 stop
Hawaiian Airlines Logo
08:41 - 19:45
ONT
-
SYD
40h 04m1 stop
$1,482Hawaiian Airlines
Fri, 27 Feb - Fri, 6 Mar
Hawaiian Airlines Logo
21:40 - 22:15
SYD
-
ONT
19h 35m1 stop
Hawaiian Airlines Logo
08:41 - 19:45
ONT
-
SYD
40h 04m1 stop
$1,483Hawaiian Airlines
Fri, 27 Feb - Tue, 17 Mar
Multiple Airlines Logo
21:40 - 22:15
SYD
-
ONT
19h 35m1 stop
Multiple Airlines Logo
12:02 - 19:45
ONT
-
SYD
37h 43m2 stops
$1,512Multiple Airlines
Sat, 21 Feb - Sat, 28 Feb
Delta Logo
10:40 - 21:44
SYD
-
ONT
30h 04m2 stops
Delta Logo
06:00 - 06:50
ONT
-
SYD
29h 50m2 stops
$1,580Delta
Thu, 22 Jan - Thu, 5 Feb
Lufthansa Logo
13:00 - 22:53
MEL
-
ONT
28h 53m1 stop
Lufthansa Logo
18:39 - 10:00
ONT
-
MEL
20h 21m1 stop
$1,601Lufthansa
Wed, 4 Feb - Wed, 11 Feb
Lufthansa Logo
13:00 - 17:50
MEL
-
ONT
23h 50m1 stop
Lufthansa Logo
13:53 - 10:00
ONT
-
MEL
25h 07m1 stop
$1,633Lufthansa
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$710
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 9142 reviews
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
Airline reviews

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

4.0 OkayJaia, Jan 2026
AKL - SFO
Read more United Airlines reviews

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario