Question 1

What is the cheapest flight from Ontario to London?

Accepted Answer

In the last 3 days, the lowest price for a flight from Ontario to London was £241 for a one-way ticket and £594 for a return. <a href='/flight-routes/Ontario-ONT/London-LON'>Visit our flight page for the latest deals!>/a>

Question 2

Which airports will I be using when flying from Ontario to London?

Accepted Answer

When flying out of Ontario you will be using Ontario. You will be landing at one of these airports: London Gatwick or London Heathrow. <a href='/flight-routes/Ontario-ONT/London-LON'>Visit our flight page for the latest deals!>/a>

Question 3

Which aircraft models fly most regularly from Ontario to London?

Accepted Answer

We unfortunately don’t have that data for this specific route.

Question 4

Which airline alliances offer flights from Ontario to London?

Accepted Answer

Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Ontario and London, with SkyTeam being the most commonly used for this route.

Question 5

How can I get to the city center by public transport after my flight from Ontario to London?

Accepted Answer

Upon arrival at London Heathrow Airport from Ontario, you can easily reach the city center using public transportation. Take the Heathrow Express train to Paddington Station, which operates every 15 minutes. From Paddington, you can transfer to the London Underground and take the Bakerloo Line or Circle Line to reach the city center.

Question 6

Can I pre-book my seat on WestJet flights from Ontario to London?

Accepted Answer

Yes, you can pre-book your seat on WestJet flights from Ontario to London. WestJet offers the option to select your preferred seat in advance, allowing you to secure your desired seating arrangement for a more comfortable journey. By accessing their online booking portal or contacting their customer service, you can make seat reservations according to your preferences and availability.

Question 7

Which kid-friendly amenities does WestJet have on flights from Ontario to London?

Accepted Answer

WestJet offers several kid-friendly amenities on flights from Ontario to London. These amenities include children's entertainment options such as movies, TV shows, and games suitable for different age groups. They also provide complimentary activity packs with coloring books, crayons, and puzzles to keep young travelers engaged during the flight.

Question 8

What are the baggage restrictions when flying Virgin Atlantic from Ontario to London?

Accepted Answer

The baggage restrictions when flying Virgin Atlantic from Ontario to London include a checked baggage allowance of two pieces weighing up to 50 lbs each in Economy class. Additionally, passengers are allowed one carry-on bag weighing up to 22 lbs and one personal item such as a laptop or handbag.

Question 9

What is the cheapest month to fly from Ontario to London?

Accepted Answer

The cheapest month for flights from Ontario to London is October, where tickets cost £497 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £873 and £783 respectively.

Question 10

What is the cheapest month to fly from Ontario to London?

Accepted Answer

The cheapest month for flights from Ontario to London is October, where tickets cost £497 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £873 and £783 respectively.

Question 11

How does KAYAK find such low prices on flights from Ontario to London?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to London. <a href='/flight-routes/Ontario-ONT/London-LON'>Visit our flight page for the latest deals!>/a>

Question 12

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to London?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Ontario is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Ontario-ONT/London-LON'>Visit our flight page for the latest deals!>/a>

Question 13

What is the Hacker Fare option on flights from Ontario to London?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Ontario with another airline. <a href='/flight-routes/Ontario-ONT/London-LON'>Visit our flight page for the latest deals!>/a>

Question 14

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to London?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Ontario-ONT/London-LON'>Visit our flight page for the latest deals!>/a>

Question 15

What is the cheapest stopover airport when flying from Ontario to London?

Accepted Answer

Flights via Dallas (DFW) offer the most affordable fares, with an average price of £648 for a return.

Question 16

What is the most popular stopover airport when flying from Ontario to London?

Accepted Answer

Phoenix (PHX) is the top choice – 50% of KAYAK users who clicked on one-stop flights from Ontario to London picked an itinerary connecting there.

Question 17

Which stopover airport has the quickest connection when flying from Ontario to London?

Accepted Answer

If you prefer a quick connection, Denver (DEN) often has the shortest stopovers from Ontario to London, with an average time of 1h 12m.

Question 18

Which stopover airport offers the shortest total travel time from Ontario to London?

Accepted Answer

Consider flying via Denver (DEN) for the shortest journey. The average one-way travel time for flights connecting there is 12h 05m.

Question 19

Which airlines provide the cheapest flights from Ontario to London?

Accepted Answer

In the past 3 days, the cheapest return tickets from Ontario to London were found on American Airlines (£437) and Delta (£438).

Question 20

Which airlines provide the cheapest flights from Ontario to London?

Accepted Answer

In the past 3 days, the cheapest return tickets from Ontario to London were found on American Airlines (£437) and Delta (£438).

Question 21

How far in advance should I book a flight from Ontario to London?

Accepted Answer

To get a below average price on the flight from Ontario to London, you should book around 4 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Question 22

How far in advance should I book a flight from Ontario to London?

Accepted Answer

To get a below average price on the flight from Ontario to London, you should book around 4 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Question 23

How much is a return flight from Ontario to London?

Accepted Answer

Flight prices are typical for this route right now.Flights to London from Ontario usually cost between £420 and £554 in September.
The lowest price found in the past 3 days was £437 on American Airlines (29 Sept-15 Oct).

Question 24

What are the most popular airlines flying to London?

Accepted Answer

The most popular airline among KAYAK users flying to London is Virgin Atlantic, followed by British Airways and Iberia.

Low season	January
High season	April
Cheapest flight	£177

ONT - LON

£177 Find Cheap Flights from Ontario to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

Cheap Flights from Ontario to London (ONT-LON)

Recent return flight deals from Ontario to London

Recent one-way flight deals from Ontario to London

Recent last minute flight deals from Ontario to London

Everything you should know

KAYAK's insights & trends for Ontario to London flights

Get data-powered insights and trends into flights from Ontario to London to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Ontario to London?

What is the cheapest month to fly from Ontario to London?

The cheapest month for flights from Ontario to London is October, where tickets cost £497 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is £873 and £783 respectively.

How far in advance should I book a flight from Ontario to London?

To get a below average price on the flight from Ontario to London, you should book around 4 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Which airlines provide the cheapest flights from Ontario to London?

In the past 3 days, the cheapest return tickets from Ontario to London were found on American Airlines (£437) and Delta (£438).

What is the most popular stopover airport when flying from Ontario to London?

Phoenix (PHX) is the top choice – 50% of KAYAK users who clicked on one-stop flights from Ontario to London picked an itinerary connecting there.

What is the cheapest stopover airport when flying from Ontario to London?

Flights via Dallas (DFW) offer the most affordable fares, with an average price of £648 for a return.

Which stopover airport offers the shortest total travel time from Ontario to London?

Consider flying via Denver (DEN) for the shortest journey. The average one-way travel time for flights connecting there is 12h 05m.

Which stopover airport has the quickest connection when flying from Ontario to London?

If you prefer a quick connection, Denver (DEN) often has the shortest stopovers from Ontario to London, with an average time of 1h 12m.

Good to know - Cheap tickets from Ontario to London

When to book flights from Ontario to London

FAQs for booking flights from Ontario to London

How can I get to the city center by public transport after my flight from Ontario to London?

Can I pre-book my seat on WestJet flights from Ontario to London?

Which kid-friendly amenities does WestJet have on flights from Ontario to London?

What are the baggage restrictions when flying Virgin Atlantic from Ontario to London?

The baggage restrictions when flying Virgin Atlantic from Ontario to London include a checked baggage allowance of two pieces weighing up to 50 lbs each in Economy class. Additionally, passengers are allowed one carry-on bag weighing up to 22 lbs and one personal item such as a laptop or handbag.

What is the cheapest flight from Ontario to London?

In the last 3 days, the lowest price for a flight from Ontario to London was £241 for a one-way ticket and £594 for a return.

Which airports will I be using when flying from Ontario to London?

When flying out of Ontario you will be using Ontario. You will be landing at one of these airports: London Gatwick or London Heathrow.

Which aircraft models fly most regularly from Ontario to London?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Ontario to London?

Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Ontario and London, with SkyTeam being the most commonly used for this route.

How does KAYAK find such low prices on flights from Ontario to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Ontario to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Ontario with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Ontario to London

Everything you need to know for your flight from Ontario to London

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to London

Complete your trip to London with a hotel stay or car hire

Find direct flights to and from Ontario and London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight