NZ$685 Cheap Flights Ontario to London (ONT-LHR)

View NZ$685 flight on Sun, 19 Oct 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Heathrow Airport (LHR)

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 23 Mar - Tue, 31 Mar
ONT
Ontario
LHR
London
NZ$1,156 Return, found 6 days ago
NZ$1,156
Return
found 6 days ago
Select United flight, departing Mon, 23 Mar from Ontario to London, returning Tue, 31 Mar, priced at NZ$1,156 found 6 days ago
United
Tue, 31 Mar - Fri, 1 May
ONT
Ontario
LHR
London
NZ$1,184 Return, found 5 days ago
NZ$1,184
Return
found 5 days ago
Select United flight, departing Tue, 31 Mar from Ontario to London, returning Fri, 1 May, priced at NZ$1,184 found 5 days ago
United
Tue, 31 Mar - Tue, 5 May
ONT
Ontario
LHR
London
NZ$1,501 Return, found 5 days ago
NZ$1,501
Return
found 5 days ago
Select United flight, departing Tue, 31 Mar from Ontario to London, returning Tue, 5 May, priced at NZ$1,501 found 5 days ago
Delta
Mon, 24 Nov - Mon, 1 Dec
ONT
Ontario
LHR
London
NZ$1,575 Return, found 3 days ago
NZ$1,575
Return
found 3 days ago
Select Delta flight, departing Mon, 24 Nov from Ontario to London, returning Mon, 1 Dec, priced at NZ$1,575 found 3 days ago
United
Tue, 31 Mar - Fri, 1 May
ONT
Ontario
LHR
London
NZ$1,598 Return, found 5 days ago
NZ$1,598
Return
found 5 days ago
Select United flight, departing Tue, 31 Mar from Ontario to London, returning Fri, 1 May, priced at NZ$1,598 found 5 days ago
Delta
Sat, 13 Dec - Fri, 26 Dec
ONT
Ontario
LHR
London
NZ$1,609 Return, found 2 days ago
NZ$1,609
Return
found 2 days ago
Select Delta flight, departing Sat, 13 Dec from Ontario to London, returning Fri, 26 Dec, priced at NZ$1,609 found 2 days ago
United
Fri, 5 Dec - Thu, 15 Jan
ONT
Ontario
LHR
London
NZ$1,657 Return, found 5 days ago
NZ$1,657
Return
found 5 days ago
Select United flight, departing Fri, 5 Dec from Ontario to London, returning Thu, 15 Jan, priced at NZ$1,657 found 5 days ago
United
Sat, 18 Oct - Thu, 30 Oct
ONT
Ontario
LHR
London
NZ$1,834 Return, found 3 days ago
NZ$1,834
Return
found 3 days ago
Select United flight, departing Sat, 18 Oct from Ontario to London, returning Thu, 30 Oct, priced at NZ$1,834 found 3 days ago
United
Fri, 28 Nov - Fri, 12 Dec
ONT
Ontario
LHR
London
NZ$1,858 Return, found 3 days ago
NZ$1,858
Return
found 3 days ago
Select United flight, departing Fri, 28 Nov from Ontario to London, returning Fri, 12 Dec, priced at NZ$1,858 found 3 days ago
Delta
Sun, 5 Oct - Fri, 31 Oct
ONT
Ontario
LHR
London
NZ$1,973 Return, found 13 hours ago
NZ$1,973
Return
found 13 hours ago
Select Delta flight, departing Sun, 5 Oct from Ontario to London, returning Fri, 31 Oct, priced at NZ$1,973 found 13 hours ago

Frequently asked questions

How much is a flight from Los Angeles - Ontario Intl. Airport (ONT) to Heathrow Airport (LHR)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey from Ontario Airport to Heathrow Airport was NZ$1,156. Cheap tickets don't stick around for long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ONT to Heathrow Airport (LHR)?
This varies between airlines, as each has its own terms and conditions. Head to the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Ontario Airport to London Heathrow 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 Los Angeles - Ontario Intl. Airport (ONT) to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from ONT to Heathrow Airport?
With a flight distance of 8 700 kilometres between Ontario and Hounslow, this is a long-haul trip. Make sure you keep well hydrated and move your legs every now and then.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to LHR?
At present, no airlines offer flights directly from Ontario Airport to London Heathrow. You'll have to book a flight with one or more stops. To score the best price and connections, lock in your airfare ahead of time.
Are Los Angeles - Ontario Intl. Airport (ONT) to Heathrow Airport (LHR) flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so there are no guarantees. While last-minute deals between Ontario Airport and Heathrow Airport are of course possible, it also makes sense to keep a close eye on prices well before you fly. In fact, some air carriers publicize their prices up to a year prior to the departure date. Expedia is constantly updating the biggest airfare bargains around, so keep checking and be ready to pounce when the price is right.

Travel information

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Heathrow
Airlines serving
United
Return price
NZ$1,156
Distance
8655 km

Book with confidence

Book with confidence

Perfect flights from Ontario to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Ontario to London. 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 Los Angeles - Ontario Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from NZ$685 and roundtrip prices from NZ$1,156. 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 Heathrow 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 London.
Perfect flights from Ontario to London

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Explore a world of travel with Expedia

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