Cheap flights from Ontario to London from £143
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to London departing on 15/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
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 Ontario to London
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
TAP AIR PORTUGAL flights from Region of Ontario to London
Our best TAP AIR PORTUGAL deals on Region of Ontario to London flight tickets
American Airlines flights from Region of Ontario to London
Our best American Airlines deals on Region of Ontario to London flight tickets
See travel insights to London from
How to get the cheapest flight ticket from Region of Ontario to London
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 London?
The cheapest month to fly to London from Region of Ontario is in February. Flight prices, which tend to average around £387, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Region of Ontario averaging around £411.
What is the cheapest day to depart on your flight to London?
Our data shows that Sunday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £531. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to London for around £583.
What is the cheapest time of day to depart on your flight to London?
The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £487. Flights in the afternoon are often more expensive, with an average ticket price of £566.
What is the cheapest Ontario to London flight route?
Fly from Toronto Pearson Intl to London Gatwick for the best Ontario - London flight prices
How far in advance should I book a flight to London?
You are more likely to see cheaper flights to London from Region of Ontario when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to London for around £505 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Region of Ontario for as low as £446 on momondo.
What cabin class options are available on Ontario to London flights?
There are 3 cabin classes available to choose from on Ontario to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to London?
WestJet and Porter Airlines are the most popular carriers operating from Ontario to London
Which airlines fly to London?
Air Canada, British Airways and Air Transat are the top three most popular airlines that fly to London from Region of Ontario according to our data. Air Canada is the first choice among our users, with 63% of people opting to fly with this airline when travelling to London. Keep in mind that there are 11 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
How many flights depart from Region of Ontario to London on average per day?
As of April 2025, there are 56 flights per day flying from Region of Ontario to London. The most common time of day flights depart is 18:00, with 100% of flights taking off in the evening.
How many flights depart from Region of Ontario to London on average per week?
As of April 2025, there are 397 flights per week flying from Region of Ontario to London. The most common day of the week flights depart is Fri, with 17% of flights taking off on this day.
Cheap Region of Ontario to London flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to London
When did momondo last update prices for flights from Ontario to London?
Prices for flights from Ontario to London were last updated today.
How many operators does momondo search for flights from Ontario to London?
As of April 2025, there are 12 operators available to choose from for flights from Ontario to London.
How old do you have to be to fly from Ontario to London?
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 Ontario to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Region of Ontario to London?
momondo data reveals that the most frequently booked plane model on the route from Region of Ontario to London is Airbus A330-200, representing 24.29% of all bookings. The subsequent popular models are Boeing 777 at 19.61%, Airbus A350-1000 at 17.85%, and Boeing 787-9 Dreamliner at 10.94%.
Best airlines flying from Region of Ontario to London
Compare and see reviews for airlines that fly from Region of Ontario to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £249 | Free Cancellation | Rating 7.1 1,839 reviews | |||
| PriceFrom £335 | Free Cancellation | Rating 7.0 482 reviews | |||
| PriceFrom £346 | Free Cancellation | Rating 7.8 385 reviews | |||
| PriceFrom £362 | Free Cancellation | Rating 7.0 1,063 reviews | |||
| PriceFrom £378 | Free Cancellation | Rating 7.0 9,142 reviews | |||
| PriceFrom £380 | Free Cancellation | Rating 8.0 281 reviews | |||
| PriceFrom £401 | Free Cancellation | Rating 7.4 642 reviews | |||
| PriceFrom £406 | Free Cancellation | Rating 6.7 7,012 reviews | |||
| PriceFrom £410 | Free Cancellation | Rating 6.6 6,771 reviews | |||
| PriceFrom £410 | Free Cancellation | Rating 7.8 1,329 reviews |
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to London?
It is quick and easy to find Ontario to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.
Can I find flights from Ontario to London with flexible booking policies on momondo?
Yes. All flights to London from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ontario to London?
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 London from Ontario.
I’m not ready to book a flight from Ontario to London right now. Can momondo alert me if prices change?
If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Ontario and alert you when they change.