£171 Cheap Flights from Ontario Intl. Airport (ONT) to Toronto (YYZ)

View £171 flight on Wed, 6 Jan 2027Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Toronto Pearson Intl. Airport (YYZ)

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Cheap Flights from Ontario Intl. Airport (ONT) to Toronto (YYZ)

Prices were available within the past 7 days and start at £171 for one-way flights and £387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 6 Jan - Wed, 20 Jan
ONT
Ontario
YYZ
Toronto
£387 Return, found 2 days ago
£387
Return
found 2 days ago
Select Delta flight, departing Wed, 6 Jan from Ontario to Toronto, returning Wed, 20 Jan, priced at £387 found 2 days ago
United
Wed, 6 Jan - Wed, 20 Jan
ONT
Ontario
YYZ
Toronto
£387 Return, found 2 days ago
£387
Return
found 2 days ago
Select United flight, departing Wed, 6 Jan from Ontario to Toronto, returning Wed, 20 Jan, priced at £387 found 2 days ago
Delta
Thu, 23 Jul - Mon, 27 Jul
ONT
Ontario
YYZ
Toronto
£389 Return, found 4 days ago
£389
Return
found 4 days ago
Select Delta flight, departing Thu, 23 Jul from Ontario to Toronto, returning Mon, 27 Jul, priced at £389 found 4 days ago
United
Thu, 23 Jul - Mon, 27 Jul
ONT
Ontario
YYZ
Toronto
£417 Return, found 4 days ago
£417
Return
found 4 days ago
Select United flight, departing Thu, 23 Jul from Ontario to Toronto, returning Mon, 27 Jul, priced at £417 found 4 days ago
United
Thu, 23 Jul - Mon, 27 Jul
ONT
Ontario
YYZ
Toronto
£422 Return, found 4 days ago
£422
Return
found 4 days ago
Select United flight, departing Thu, 23 Jul from Ontario to Toronto, returning Mon, 27 Jul, priced at £422 found 4 days ago
Air Canada
Mon, 14 Sept - Mon, 21 Sept
ONT
Ontario
YYZ
Toronto
£431 Return, found 3 days ago
£431
Return
found 3 days ago
Select Air Canada flight, departing Mon, 14 Sept from Ontario to Toronto, returning Mon, 21 Sept, priced at £431 found 3 days ago
United
Wed, 6 Jan - Wed, 20 Jan
ONT
Ontario
YYZ
Toronto
£438 Return, found 2 days ago
£438
Return
found 2 days ago
Select United flight, departing Wed, 6 Jan from Ontario to Toronto, returning Wed, 20 Jan, priced at £438 found 2 days ago
Air Canada
Mon, 14 Sept - Mon, 21 Sept
ONT
Ontario
YYZ
Toronto
£442 Return, found 3 days ago
£442
Return
found 3 days ago
Select Air Canada flight, departing Mon, 14 Sept from Ontario to Toronto, returning Mon, 21 Sept, priced at £442 found 3 days ago
Alaska Airlines
Mon, 14 Sept - Mon, 21 Sept
ONT
Ontario
YYZ
Toronto
£452 Return, found 3 days ago
£452
Return
found 3 days ago
Select Alaska Airlines flight, departing Mon, 14 Sept from Ontario to Toronto, returning Mon, 21 Sept, priced at £452 found 3 days ago
American Airlines
Wed, 6 Jan - Wed, 20 Jan
ONT
Ontario
YYZ
Toronto
£455 Return, found 2 days ago
£455
Return
found 2 days ago
Select American Airlines flight, departing Wed, 6 Jan from Ontario to Toronto, returning Wed, 20 Jan, priced at £455 found 2 days ago

Frequently asked questions

How much does a flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) cost?
One-way flights typically cost between £327 and £1,488 and return flights often range between £797 and £2,743. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
How do I find cheap flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
To find a cheap flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
There are approximately 32 connecting flights per day from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.). Some common connection points include Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
The earliest flight from Los Angeles - Ontario Intl. (ONT) to Toronto Pearson Intl. (YYZ) typically departs at approximately 12:55 AM local time. This service is operated by American Airlines and is seasonal, active only in September. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
You'll typically find the most flights from Los Angeles - Ontario Intl. (ONT) to Pearson Intl. (YYZ) on a Thursday, with around 33 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, Alaska Airlines, and Delta Air Lines. Thursdays offer notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
The most popular departure times for flights from Los Angeles - Ontario Intl. (ONT) to Pearson Intl. (YYZ) are in the early morning, from 6am to 9am. About 40% of passengers prefer this time. Many major carriers, including American Airlines, Air Canada and United Airlines, offer flights during this window. This timing works well because it allows you to get an early start on your journey and arrive at your destination with plenty of time left in the day.
How long does it take to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
A flight from ONT to YYZ with a layover takes around 7 hours 30 minutes, with the route covering approximately 2,127 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
Select the "Business class" and "First class" filters when looking for ONT to YYZ flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) flight with Expedia?
It's easy to earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Toronto from Los Angeles - Ontario Intl. (ONT)?
If you're planning to travel to Toronto from Los Angeles - Ontario Intl. (ONT), you can fly directly into Pearson Intl. (YYZ) Some flights may connect through major hubs like Sky Harbor Intl. (PHX), Portland Intl. (PDX), Dallas-Fort Worth Intl. (DFW) before reaching Toronto. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) at the last minute?
Typically, booking a last minute flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) flight and hotel package?
Securing a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
If you booked your Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Toronto, ON (YYZ-Pearson Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Pearson Intl.
Return price
£386
Distance
3403 km

Book with confidence

Compare flights from Ontario Intl. Airport to Toronto easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Ontario Intl. Airport to Toronto. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Pearson Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Ontario Intl. Airport to Pearson Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Ontario Intl. Airport (ONT) to Pearson Intl. (YYZ)

The easiest way to view the best deals on flights from Ontario Intl. Airport to Toronto today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Ontario Intl. Airport to Pearson Intl. start at just £387 and range up to £455.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Ontario Intl. Airport and Toronto
  • booking your flight during January, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Ontario Intl. Airport to Toronto flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Ontario Intl. Airport to Pearson Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Ontario Intl. Airport to Toronto easily and book with confidence

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