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London to Ontario, CA flights

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Why book with Opodo?
  • Cheap flights with over 660 airlines
  • Compare the best deals
  • Fly to Ontario, CA for low prices
Cheapest flightCheapest price for a one-way flight between London with Ontario, CA found by our customers in the last 72 hours
High seasonAccording to search data from our customers, August is the busiest time to fly from London to Ontario, CA
Best time to bookAccording to real data February is the most popular time to book a flight to Ontario, CA when departing from London
Airlines flying this routeAirline(s) with flights between London to Ontario, CA

Cheap last minute flights to Ontario, CA

Latest deals and top flight routes from London airports.

Departure Sun, 24 Oct Return Sun, 31 Oct
LON London
ONT Ontario, CA
return from £328
Departure Mon, 08 Nov Return Mon, 15 Nov
LON London
ONT Ontario, CA
return from £320
Flight route information
Find out further information on London and Ontario, CA to help you prepare for your trip.
London airports
  • ( Heathrow (LHR)
    How far from city centre: 14 miles
  • ( Stansted (STN)
    How far from city centre: 30 miles
  • ( Gatwick (LGW)
    How far from city centre: 25 miles
  • ( Luton International (LTN)
    How far from city centre: 27 miles
  • ( London City (LCY)
    How far from city centre: 7 miles
  • ( Southend (SEN)
    How far from city centre: 35 miles
Ontario, CA airports
  • ( Los Angeles Intl Airport (LAX)
    How far from city centre: 44 miles
  • ( Ontario International (ONT)
    How far from city centre: 2 miles
K Distance: 5421 miles

Search for flights from London to Ontario, CA

Find cheap flights from London to Ontario, CA with the Opodo search engine. Whether it’s on business, for a relaxing holiday or to visit loved ones, you will find all the best deals on flights from London with Opodo, featuring cheap flights by all the top low cost and standard airlines. By simply entering your preferences in our speedy search engine, a large selection of options will be returned from which you just need to select the best deal that works for you. We’ll do the rest! Alternatively, if you are flexible on dates or an early bird, discover the cheapest day to fly from London to Ontario, CA to ensure you get the best price. Find exclusive discounts by downloading the Opodo App and subscribing to our newsletter to stay in touch with the best offers on flights, hotels and more. Finally, don’t forget to book a hotel or car hire to complete your journey, all of which you will find on Opodo, your one-stop travel shop. Then just sit back and relax and enjoy your holidays!

Frequent asked questions about flights from London to Ontario, CA

😷 Is it safe to travel from London to Ontario, CA during the Covid-19 situation?
At Opodo we want to make sure that your travel plans are not affected by any cancelation as well as any possible restrictions United States may apply when travelling from London. Is your flight cancelled? We've got your back! With our flexible ticket guarantee you can decide if you want to book another flight - free of rebooking fee - or get a full refund!
🔍 How can I find cheap flights from London to Ontario, CA at Opodo?
The cheapest price for a flight from London to Ontario, CA is 320£. At Opodo we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
📉 When is the best time to book a flight from London to Ontario, CA?
The most popular months to book a trip from London to Ontario, CA are February, September and July, based on the searches of our customers.
📅 When is the best time to travel from London to Ontario, CA?
The best time of the year to go to Ontario, CA when flying from London depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, August is the top 1º month to fly to Ontario, CA from London in terms of searches from our customer, followed by April and July. If you prefer to avoid high peaks of turism, however, and escape a crowded period, January, March and November are the months with less volume of searchs for the route London -  Ontario, CA.
🌡️ How is the weather in Ontario, CA compared to London?
While in London the temperatures can reach an average of 29.01 ºC in summer, with precipitation levels up to 9.0 mm ,Ontario, CA's temperatures can go up to 36.7 ºC during the hot season, with 1.4 mm average of rain rate . In winter, however, weather indicators show around -0.46 ºC in Ontario, CA, compared to the -3.09 ºC average degrees reported in London. During the winter period, London can register 6.0 mm precipitation, while Ontario, CA have an average of 3.0 mm rain level.
Airlines with indirect flights from London to Ontario, CA are:
Airlines with indirect flights from London to Ontario, CA are:
  • Virgin Atlantic, stoping in Salt Lake City, UT for 355 minutes minimun.
  • Finnair, with 125 minutes scale in Phoenix.
  • Finnair, with 125 minutes scale in Phoenix.
Other popular routes

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Our International travel websites

Flights from London to Ontario, CA
Flüge von London nach Ontario, CA
Londres Ontario, CA