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Cheap flights to Ontario (USA)

Fly from as little as £417

9 nights in Ontario (USA), departing London Heathrow on 18 / Jan / 2021 with United Airlines (price found 15 hours ago)

Subject to availability, prices correct of the last 24 hours
Ontario (USA)

Common routes to Ontario (USA) from the UK

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Ontario (USA)

You’ve searched for flights to Ontario (USA). Currently, the cheapest priced departure date is 18 / Jan / 2021. We recommend you start your flight search well in advance of booking and monitor the cost of flights, unless you’re looking to bag a last minute deal. The more flexible you can be in your dates of travel, the more cheaper options will become available to you. For example, flying during the week is often cheaper than weekends.

Ontario (USA) flight facts

what you need to know

How to land a low priced flight to Ontario (USA)

booking advice, visa information and airports and airlines tips

Go through your results for flights to Ontario (USA) in the USA with Netflights. The most popular airlines for this route are British Airways, United Airlines & Singapore Airlines, with British Airways claiming the top spot. Although Delta Air Lines usually has the best prices, it's best to double check what's available for your travel dates.

Flexible on dates? Conducting your search by month allows you to compare prices to Ontario (USA) throughout the year. For example, prices will almost certainly be higher around October, as this is peak season in Ontario (USA). Accommodation prices will also be higher at this time of year. Flights to Ontario (USA) are usually cheapest in November.

94 direct and indirect flights go to Ontario (USA) every week and we scan them all. Today alone, we've compared 120 flights worldwide, so you're bound to find one that works for you. Look out for flights with Delta Air Lines, as they often have good deals. Or broaden your search by looking at other airports in the USA.

For even more options, check what other airports you could fly to Ontario (USA) from. You might be able to make a saving by going from a different airport or city.

Min / Max Temperature (°C)

6 °C


19 °C


34 °C

Rainfall (mm)

2.5 mm


31.5 mm


86.4 mm

Key facts about Ontario (USA) know before you go

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