$328 Cheap Flights from Ottawa (YOW) to Ontario (ONT)

View $328 flight on Sat, Oct 25, 2025Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Ottawa to Ontario (YOW-ONT)

Prices were available within the past 7 days and start at $328 for one-way flights and $648 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Oct 8 - Sat, Oct 18
YOW
Ottawa
ONT
Ontario
$648 Roundtrip, found 6 days ago
$648
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, Oct 8 from Ottawa to Ontario, returning Sat, Oct 18, priced at $648 found 6 days ago
United
Wed, Nov 5 - Sat, Nov 15
YOW
Ottawa
ONT
Ontario
$687 Roundtrip, found 8 hours ago
$687
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Sat, Nov 15, priced at $687 found 8 hours ago
United
Wed, Nov 5 - Tue, Nov 25
YOW
Ottawa
ONT
Ontario
$691 Roundtrip, found 5 days ago
$691
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Tue, Nov 25, priced at $691 found 5 days ago
United
Wed, Nov 5 - Sat, Nov 15
YOW
Ottawa
ONT
Ontario
$693 Roundtrip, found 8 hours ago
$693
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Sat, Nov 15, priced at $693 found 8 hours ago
United
Wed, Nov 5 - Sat, Nov 15
YOW
Ottawa
ONT
Ontario
$697 Roundtrip, found 8 hours ago
$697
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Sat, Nov 15, priced at $697 found 8 hours ago
United
Wed, Nov 5 - Sat, Nov 15
YOW
Ottawa
ONT
Ontario
$697 Roundtrip, found 8 hours ago
$697
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Sat, Nov 15, priced at $697 found 8 hours ago
Air Canada
Wed, Nov 5 - Sat, Nov 15
YOW
Ottawa
ONT
Ontario
$700 Roundtrip, found 8 hours ago
$700
Roundtrip
found 8 hours ago
Select Air Canada flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Sat, Nov 15, priced at $700 found 8 hours ago
United
Wed, Nov 5 - Sat, Nov 15
YOW
Ottawa
ONT
Ontario
$702 Roundtrip, found 8 hours ago
$702
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Sat, Nov 15, priced at $702 found 8 hours ago
Air Canada
Wed, Nov 5 - Sat, Nov 15
YOW
Ottawa
ONT
Ontario
$706 Roundtrip, found 8 hours ago
$706
Roundtrip
found 8 hours ago
Select Air Canada flight, departing Wed, Nov 5 from Ottawa to Ontario, returning Sat, Nov 15, priced at $706 found 8 hours ago
WestJet
Wed, Oct 8 - Sat, Oct 18
YOW
Ottawa
ONT
Ontario
$1,826 Roundtrip, found 6 days ago
$1,826
Roundtrip
found 6 days ago
Select WestJet flight, departing Wed, Oct 8 from Ottawa to Ontario, returning Sat, Oct 18, priced at $1,826 found 6 days ago

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $408
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $408
Flights from Ottawa (YOW) to Ontario (ONT)
Origin airport
Macdonald-Cartier Intl.
Destination airport
Los Angeles - Ontario Intl.
Roundtrip price
$648
Distance
2330 mi

Ottawa to Ontario Flights

The cheapest times to fly from Ottawa to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ottawa to Ontario are during the month of October. You can find some of the cheapest flights from Ottawa to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ottawa to Ontario

Sunday is one of the best days to book for cheap flights from Ottawa to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ottawa to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ottawa to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $328 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ottawa to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ottawa to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Snag a cheap one-way flight from $328 or cheap return flight from $648 from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT)?
October is the least expensive month to fly from YOW to ONT. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest YOW to ONT flight.
How many flights per day from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT)?
There are no daily nonstop flights departing from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from YOW to ONT?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT)?
Choose a flight from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT) that leaves before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Booking your plane ticket from YOW to ONT just before your trip is usually more expensive. But if you're flexible with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a YOW to ONT flight and hotel package?
You can save money by booking a YOW to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your preferred accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Macdonald-Cartier Intl. Airport (YOW) to Los Angeles - Ontario Intl. Airport (ONT)?
If you reserved your YOW to ONT flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.