Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London to Los Angeles
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
United Airlines flights from London to Ontario
Our best United Airlines deals on London to Ontario flight tickets
Delta flights from London to Ontario
Our best Delta deals on London to Ontario flight tickets
See travel insights to Los Angeles from
How to get the cheapest flight ticket from London to Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Ontario?
If you don’t want to visit Ontario in February, then you should wait until January to fly from London, when ticket prices are also cheap, with an average price of €516.
How far in advance should I book a flight to Ontario?
You are more likely to see cheaper flights to Ontario from London when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around €668 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from London for as low as €479 on momondo.
When to book flights from London to Ontario
Cheap London to Ontario (LON to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Ontario
How far is London to Ontario by plane?
A flight from London to Ontario will travel around 8718.6 km. Typically, this will take 13h 17m by plane in normal conditions.
When did momondo last update prices for flights from London to Ontario Airport?
Prices for flights from London to Ontario Airport were last updated today.
How old do you have to be to fly from London to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Why use momondo?
Why should I use momondo to find a flight deal from London to Ontario?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from London.
Can I find flights from London to Ontario with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to Ontario flights to just show those with flexible booking policies.
How can momondo help me find flights from London to Ontario?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from London.
I’m not ready to book a flight from London to Ontario right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from London and alert you when they change.