
Popular airlines from Heathrow Airport (LHR) to Los Angeles - Ontario Intl. Airport (ONT)
- Aer Lingus
Aer Lingus
- Lufthansa
Lufthansa
- British Airways
British Airways
- Turkish Airlines
Turkish Airlines
- American Airlines
American Airlines
- Air Serbia
Air Serbia
- Swiss International Air Lines
Swiss International Air Lines
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Cheap flights from London to Ontario (LHR-ONT)
Prices were available within the past 7 days and start at €720 for one-way flights and €486 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€486 Return, found 5 days ago
€486
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€506 Return, found 5 days ago
€506
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€506 Return, found 5 days ago
€506
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€506 Return, found 5 days ago
€506
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€506 Return, found 5 days ago
€506
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€512 Return, found 5 days ago
€512
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€515 Return, found 5 days ago
€515
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€516 Return, found 5 days ago
€516
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€530 Return, found 5 days ago
€530
Return
found 5 days ago

Thu, 24 Apr - Wed, 7 May
LHR
London
ONT
Ontario
€553 Return, found 5 days ago
€553
Return
found 5 days ago
Frequently asked questions
Travel information
Travel information
Origin airport | Heathrow |
Destination airport | Los Angeles - Ontario Intl. |
Return price | €486 |
Distance | 8655 km |
Book with confidence
Book with confidence
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Ontario. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Heathrow to Los Angeles - Ontario Intl. ticket options cater to your travel preferences, with incredible one-way fares from €720 and roundtrip prices from €486. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Los Angeles - Ontario Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Ontario.
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Explore a world of travel with Expedia
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