$286 Cheap Flights from Ontario (ONT) to Hamilton (YHM)

View $286 flight on Thu, Feb 5, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM)

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Cheap Flights from Ontario to Hamilton (ONT-YHM)

Prices were available within the past 7 days and start at $286 for one-way flights and $737 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, May 8 - Mon, May 11
ONT
Ontario
YHM
Hamilton
$737 Roundtrip, found 5 days ago
$737
Roundtrip
found 5 days ago
Select Air Canada flight, departing Fri, May 8 from Ontario to Hamilton, returning Mon, May 11, priced at $737 found 5 days ago
United
Fri, May 8 - Mon, May 11
ONT
Ontario
YHM
Hamilton
$762 Roundtrip, found 5 days ago
$762
Roundtrip
found 5 days ago
Select United flight, departing Fri, May 8 from Ontario to Hamilton, returning Mon, May 11, priced at $762 found 5 days ago
Air Canada
Fri, May 8 - Mon, May 11
ONT
Ontario
YHM
Hamilton
$792 Roundtrip, found 5 days ago
$792
Roundtrip
found 5 days ago
Select Air Canada flight, departing Fri, May 8 from Ontario to Hamilton, returning Mon, May 11, priced at $792 found 5 days ago
Air Canada
Fri, May 8 - Mon, May 11
ONT
Ontario
YHM
Hamilton
$808 Roundtrip, found 5 days ago
$808
Roundtrip
found 5 days ago
Select Air Canada flight, departing Fri, May 8 from Ontario to Hamilton, returning Mon, May 11, priced at $808 found 5 days ago
Alaska Airlines
Tue, Mar 24 - Fri, Mar 27
ONT
Ontario
YHM
Hamilton
$844 Roundtrip, found 6 days ago
$844
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Mar 24 from Ontario to Hamilton, returning Fri, Mar 27, priced at $844 found 6 days ago
Air Canada
Thu, Aug 6 - Mon, Aug 10
ONT
Ontario
YHM
Hamilton
$847 Roundtrip, found 3 days ago
$847
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Aug 6 from Ontario to Hamilton, returning Mon, Aug 10, priced at $847 found 3 days ago
Air Canada
Thu, Aug 6 - Mon, Aug 10
ONT
Ontario
YHM
Hamilton
$847 Roundtrip, found 3 days ago
$847
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Aug 6 from Ontario to Hamilton, returning Mon, Aug 10, priced at $847 found 3 days ago
Delta
Fri, May 8 - Mon, May 11
ONT
Ontario
YHM
Hamilton
$853 Roundtrip, found 5 days ago
$853
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, May 8 from Ontario to Hamilton, returning Mon, May 11, priced at $853 found 5 days ago
Alaska Airlines
Tue, Mar 24 - Fri, Mar 27
ONT
Ontario
YHM
Hamilton
$863 Roundtrip, found 6 days ago
$863
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Mar 24 from Ontario to Hamilton, returning Fri, Mar 27, priced at $863 found 6 days ago
WestJet
Wed, May 20 - Mon, May 25
ONT
Ontario
YHM
Hamilton
$1,633 Roundtrip, found 3 days ago
$1,633
Roundtrip
found 3 days ago
Select WestJet flight, departing Wed, May 20 from Ontario to Hamilton, returning Mon, May 25, priced at $1,633 found 3 days ago
Flights from Ontario (ONT) to Hamilton (YHM)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
John C. Munro Hamilton Intl.
Airlines serving
WestJet
Roundtrip price
$737
Distance
2108 mi

Ontario to Hamilton Flights

The cheapest times to fly from Ontario to Hamilton

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 Ontario to Hamilton are during the month of May. You can find some of the cheapest flights from Ontario to Hamilton with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Hamilton

Sunday is one of the best days to book for cheap flights from Ontario to Hamilton: 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 Ontario to Hamilton

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 Ontario to Hamilton in 2026. You can also book with separate airlines for your outbound and return journeys, from $286 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 Ontario to Hamilton 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 Ontario to Hamilton 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 Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM) cost?
Lock in a cheap one-way flight from $286 or cheap return flight from $737 from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM)?
Traveling in May is a good way to save, as it's the cheapest month for flights between ONT and YHM. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest ONT to YHM flight.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM)?
There aren't any daily nonstop flights departing from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from ONT to YHM?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM)?
To avoid potential delays on the Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM) route, travel before 3 PM. Later departures have a 22% higher chance of being canceled.**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 Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM) last-minute?
Booking your plane ticket from ONT to YHM just before your trip is generally more expensive. However, if there's some wiggle room with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book an ONT to YHM flight and hotel package?
You can save money by booking an ONT to YHM flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After choosing your ideal flights and accommodations, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to John C. Munro Hamilton Intl. Airport (YHM)?
If you reserved your ONT to YHM flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.