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LHR (London) to ONT (Ontario) Flights $668.16

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Cheap LHR to ONT Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Orange County

$582.16

Long Beach

$702.86

Interesting Facts About Flights from London to Ontario (LHR to ONT)

Question : Is there another way to get to Ontario International Airport (ONT) besides London Heathrow Airport (LHR)?
Answer : Departing from London Heathrow Airport is not the only way to get to Ontario International Airport. Try looking for flights from London Gatwick Airport (LGW) as well. Over the next few months, flights from LGW to ONT are being priced 39% cheaper than flights from LHR to ONT. Being only 25 miles away, it's easily accessible for most.

Question : What is the cheapest round-trip ticket you can get to Ontario?
Answer : United Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $910, while prices for other flights are as high as $2,403.

Question : What is the cheapest day to fly in the next four weeks?
Answer : Sep 30th has seen bookings (as of Sep 18th) as cheap as $1,439. That comes in 25% below the average price for this route. Saving now means you'll have more cash to spend on your trip.

Question : Are you paying the cheapest or highest price for your ticket to Ontario?
Answer : Prices for this trip tend to change a lot more than other flights from the United Kingdom. They can vary anywhere from $910 to $2,403. Prices tend to be lower the further out you book.

Question : How many days should you spend in Ontario?
Answer : The average time spent in Ontario by passengers from London is about one week.