ONT

$707 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 15/2. 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
$1,210
United Airlines
Wed 18/2Sun 22/2
BNE - ONT • 1 stop
Cheapest one-way flight
$707
United Airlines
Sun 15/2
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

Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
11:40 - 17:41
BNE
-
ONT
24h 01m
1 stop
United Airlines Logo
06:09 - 07:30
ONT
-
BNE
31h 21m
1 stop
$1,210United Airlines
Tue, 10 Feb - Tue, 17 Feb
United Airlines Logo
11:40 - 17:43
BNE
-
ONT
24h 03m
1 stop
United Airlines Logo
13:50 - 07:30
ONT
-
BNE
23h 40m
1 stop
$1,213United Airlines
Sun, 1 Feb - Sun, 15 Feb
United Airlines Logo
11:40 - 11:18
BNE
-
ONT
17h 38m
1 stop
United Airlines Logo
13:45 - 07:30
ONT
-
BNE
23h 45m
2 stops
$1,214United Airlines
Sun, 1 Feb - Sun, 15 Feb
Lufthansa Logo
11:40 - 17:43
BNE
-
ONT
24h 03m
1 stop
Lufthansa Logo
18:37 - 07:30
ONT
-
BNE
18h 53m
1 stop
$1,262Lufthansa
Sun, 15 Mar - Mon, 23 Mar
Delta Logo
09:40 - 23:50
SYD
-
ONT
32h 10m
2 stops
Delta Logo
06:00 - 07:25
ONT
-
SYD
31h 25m
2 stops
$1,481Delta
Sun, 1 Mar - Sun, 8 Mar
Delta Logo
10:10 - 16:02
MEL
-
ONT
24h 52m
2 stops
Delta Logo
13:20 - 07:00
ONT
-
MEL
47h 40m
2 stops
$1,481Delta
Tue, 19 May - Thu, 18 Jun
Multiple Airlines Logo
20:45 - 22:07
SYD
-
ONT
18h 22m
1 stop
Multiple Airlines Logo
07:50 - 18:50
ONT
-
SYD
18h 00m
1 stop
$1,587Multiple Airlines
Sun, 3 May - Sun, 8 Nov
China Airlines Logo
21:50 - 18:00
MEL
-
ONT
37h 10m
1 stop
China Airlines Logo
22:50 - 12:05
ONT
-
MEL
42h 15m
1 stop
$1,723China Airlines
Fri, 5 Jun - Thu, 25 Jun
China Airlines Logo
21:50 - 18:00
MEL
-
ONT
37h 10m
1 stop
China Airlines Logo
00:10 - 10:40
ONT
-
MEL
41h 30m
1 stop
$1,783China Airlines
Sat, 6 Jun - Fri, 26 Jun
Multiple Airlines Logo
13:30 - 22:07
MEL
-
ONT
25h 37m
2 stops
Multiple Airlines Logo
07:50 - 23:35
ONT
-
MEL
22h 45m
2 stops
$1,805Multiple Airlines
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$707
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 9162 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

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.

6.0 GoodMichael, Jan 2026
PDX - SFO
Read more United Airlines reviews

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

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

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.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario