Cheap flights from Ontario (ONT) to Heathrow (LHR)

Flight FAQs

From Ontario to Heathrow

Are flight prices decreasing from Ontario to Heathrow due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and Heathrow for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Ontario to London Heathrow to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Ontario to London Heathrow. Policies will vary by airline.

Which airlines flying from Ontario to London Heathrow have flexible cancellations due to COVID-19?

American Airlines, British Airways, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Ontario to Heathrow for under $700 on Cheapflights?

Yes, there are multiple flights from Ontario to Heathrow for under $700. The cheapest flight booked recently is on KLM for just $638, but on average you can expect to pay $653.

Are there nonstop flights from Ontario to Heathrow for under $600 on Cheapflights?

There are no nonstop flights from Ontario to Heathrow, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Ontario to Heathrow for under $700?

There are currently 4+ open flights from Ontario to Heathrow within the next 7 days for less than $700.

What days are nonstop flights available from Ontario to Heathrow?

You can find nonstop flights on the following days: Friday.

Does it rain more in Ontario or Heathrow?

Ontario will have less rainfall in 2 compared to Heathrow over the next 8 days.

Is Ontario weather warmer or cooler than Heathrow?

Expect the weather to be around 95 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Heathrow is generally colder than in Ontario.

How long is the flight from Ontario to Heathrow?

There are many flights that can get you from Ontario to Heathrow in 12h 25m. Fly via American Airlines, British Airways, or KLM to get the fastest option. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Ontario to Heathrow round-trip?

Our cheapest airline available from Ontario to Heathrow is KLM. Our recent data shows that you can find tickets from as low as $638 on this airline. Additional options worth looking into are American Airlines and British Airways, starting at $642 and $645 round-trip.

What are the cheapest airlines to fly from Ontario to Heathrow one-way?

$398 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on British Airways and Air Canada, with prices starting from $413 and $2,321, respectively.