Cheap Flights from Heathrow Airport to Ontario (ONT) Find and Compare the Best Airline Deals | Skyticket

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2025/5
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Total Fares（Round-Trip/Economy）: USD /Per Person

* Displayed fare(s) may differ from the actual search result

Heathrow－Ontario Airport
May Lowest Airfares
USD556

The airfare displayed above is for Delta Air Lines

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Heathrow－Ontario Airport
June Lowest Airfares -----

Heathrow－Ontario Airport
July Lowest Airfares
USD1,218

The airfare displayed above is for United Airlines

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Heathrow－Ontario Airport
August Lowest Airfares -----
Heathrow－Ontario Airport
September Lowest Airfares
USD670

The airfare displayed above is for Delta Air Lines

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London (UK)－Ontario
Estimated Flight Time
11 Hours 15 Minutes
London (UK)－Ontario
Number of Operating Airlines
3

Operating Airlines for Heathrow－Ontario Airport Route
American Airlines

Delta Air Lines

United Airlines

Other Destinations from:London (UK)

Heathrow－Philadelphia(PHL)
USD640〜
* Fares vary in accordance to seat availability
Other Departures to: Ontario

London City Airport－Ontario(ONT)
USD1,494〜
* Fares vary in accordance to seat availability