CA $1,207 Cheap Flights from London (LHR) to Ontario (ONT)

View CA $1,207 flight on Wed, Nov. 26, 2025Opens in a new window

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Cheap flights from London (LHR) to Ontario (ONT)

Prices were available within the past 7 days and start at CA $1,207 for one-way flights and CA $1,054 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun., May 18 - Sun., May 25
LHR
London
ONT
Ontario
CA $1,054 Roundtrip, found 5 days ago
CA $1,054
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun., May 18 from London to Ontario, returning Sun., May 25, priced at CA $1,054 found 5 days ago
Finnair
Sun., May 18 - Sun., May 25
LHR
London
ONT
Ontario
CA $1,070 Roundtrip, found 5 days ago
CA $1,070
Roundtrip
found 5 days ago
Select Finnair flight, departing Sun., May 18 from London to Ontario, returning Sun., May 25, priced at CA $1,070 found 5 days ago
British Airways
Sun., May 18 - Sun., May 25
LHR
London
ONT
Ontario
CA $1,078 Roundtrip, found 5 days ago
CA $1,078
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun., May 18 from London to Ontario, returning Sun., May 25, priced at CA $1,078 found 5 days ago
JetBlue Airways
Sun., May 18 - Sun., May 25
LHR
London
ONT
Ontario
CA $1,273 Roundtrip, found 5 days ago
CA $1,273
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sun., May 18 from London to Ontario, returning Sun., May 25, priced at CA $1,273 found 5 days ago
Iberia
Sun., May 18 - Sun., May 25
LHR
London
ONT
Ontario
CA $1,624 Roundtrip, found 5 days ago
CA $1,624
Roundtrip
found 5 days ago
Select Iberia flight, departing Sun., May 18 from London to Ontario, returning Sun., May 25, priced at CA $1,624 found 5 days ago
Flight from London to Ontario (LHR - ONT) route information
Origin airport
Heathrow
Destination airport
Los Angeles - Ontario Intl.
Roundtrip price
CA $1,053
Distance
8655 km

London to Los Angeles Flights

Ready for an adventure? Thought so! Prepare to see the sights when you book your trip from London to Los Angeles with Expedia.ca. Whether you’re visiting for business or pleasure, we know how important it is to bring home travel stories. Maybe your tales will include the best dinner of your life, or the weirdest street art you saw in the city, or the concert that turned you into a fan of a new band. Whatever it is, your new favourite anecdote is right around the corner. Book your trip from LHR to ONT and begin your journey!

Getting a cheap deal on your trip sets the tone for the perfect holiday. And with Expedia.ca, you know you can travel from London to Los Angeles on the cheap, with enough money left over for a stellar time in the city. That could mean more tours with the kids, more concerts with the spouse, more dessert amongst co-workers, or even front row seats to a sports game if you’re travelling solo. It’s your holiday! Make it great.

Travelling shouldn’t cost an arm and a leg before you even get to relax on the plane’s armrests. Count on Expedia.ca to get you the best discounts on flights from LHR to ONT. And remember this: You can also save big when you bundle. Add a hotel or car rental deal to your flight and witness those savings add up. Hey, more money for more souvenirs, right? Right! Pack your bags and we’ll see you on the route.

Combine your Los Angeles flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from with Expedia Canada. Use us as your top travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from LHR to Ontario Airport?
Start packing your bags, because round-trip flights between London Heathrow and ONT start from CA $1,054. That’s based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LHR to ONT?
The majority of flights can be canceled online, but whether you are charged a fee depends on your airline. If you do need to cancel your getaway, follow the instructions in the Customer Service Portal.
How do I find cheap flights from London Heathrow to Ontario Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Heathrow Airport (LHR) to Ontario Airport flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Ontario Airport?
Hounslow to Ontario is around 8,700 kilometers, so get ready to spend quite a while in the air. Make sure you pack all the essentials, from your hoodie to your headphones. Take some snacks to nibble on throughout your trip too.
Which airlines fly direct from Heathrow Airport to Ontario Airport?
At the moment, no airlines offer flights directly from Heathrow Airport to ONT. You’ll have to book a flight with one or more stops. To score the best price and connections, lock in your airfare well ahead of time.
Are LHR to Los Angeles - Ontario Intl. Airport (ONT) flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Heathrow Airport (LHR) to Ontario Airport can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out altogether! If you’d prefer to start planning your trip ahead of time, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines issue their prices that far in advance. Our top tip? Check back often as prices are updated frequently.

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Ontario nearby Airports

Los Angeles

London to Los Angeles Intl.
CA $716.93
*Available to Expedia members.