Question 1

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

Accepted Answer

KLM, at £507, was found to be the cheapest airline from Ontario to London.Alternate airlines flying return to your destination include British Airways and Delta. Users have found that KLM is 25% cheaper than the other options available to this destination.

Question 2

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

Accepted Answer

£282 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Virgin Atlantic and Delta, with prices starting from £369 and £370, respectively.

Question 3

E

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Ontario to London (average of £111). Flying from Ontario to London in June is currently the most expensive (average of £171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

£89

February

£100

March

£95

April

£100

May

£110

June

£137

July

£137

August

£116

September

£110

October

£127

November

£92

December

£97

Question 4

When is the best time to book a flight from Ontario to London?

Accepted Answer

Booking 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 5

When is the cheapest time to fly from Ontario to London?

Accepted Answer

Travellers seeking maximum savings on their Ontario to London flight should consider departing on Saturday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

How recently were the Ontario to London flight deals updated?

Accepted Answer

The Ontario to London flight deals you see on this page were last updated on 28/4.

Question 7

What are the most popular routes from Ontario to London?

Accepted Answer

When deciding which route to take from Ontario to London consider Ontario - London Heathrow, Ontario - London Gatwick or Ontario - London City as they are the most popular.

Question 8

Can I find flights from Ontario to London for under £600 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from Ontario to London for under £600. The cheapest flight booked recently is on KLM for just £507, but on average you can expect to pay £545.

Question 9

Are there last-minute flights available from Ontario to London for under £600?

Accepted Answer

There are currently 20+ open flights from Ontario to London within the next 7 days for less than £600.

Question 10

What is the cheapest day to fly round-trip from Ontario to London?

Accepted Answer

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 40% when planning your travel around this day of the week.

Question 11

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

Accepted Answer

To save up to 58% on this flight, we recommend booking at least 59 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to London from £717 1-2 weeks out and tickets from £1,001 for flights departing within the next 72 hours.

Question 12

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

Accepted Answer

Flights from Ontario to London lean towards being more expensive in June. Prices are generally better when you fly from Ontario to London in October, with the cheapest ticket starting at £335.

Question 13

When is the cheapest time to fly from Ontario to London (ONT - LON)?

Accepted Answer

One of the essential ways to save on airfare from Ontario to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 30% on airfare.

Question 14

What airport do you fly from for flights from Ontario to London?

Accepted Answer

Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to London. 0 airlines have flights from Ontario to London on a regular basis. Booking flights from Ontario to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

Question 15

What does ONT to LHR mean?

Accepted Answer

This is defined as Ontario Airport (ONT) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

Question 16

Can I find deals for flights from Ontario to London that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your Ontario to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 17

Can I find deals on flights from Ontario to London with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter Ontario to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 18

Can I find deals for flights from Ontario to London that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Ontario to London flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 19

How can I find direct flights from Ontario to London?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to London.

Question 20

Can I find deals for business class flights from Ontario to London?

Accepted Answer

Yes. Cheapflights offers flight deals from Ontario to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 21

Can I find deals for flights from Ontario to London that allow pets onboard?

Accepted Answer

Many airlines flying from Ontario to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 22

Can I find deals on last-minute flights from Ontario to London?

Accepted Answer

Yes, you can often find last-minute deals on Ontario to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 23

How does Cheapflights help users find flights from Ontario to London?

Accepted Answer

Cheapflights helps you search for flights from Ontario to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 24

Why should you use Cheapflights to find cheap flight tickets from Ontario to London?

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to London for you. Better yet — we are completely free to use.

Question 25

Can Cheapflights find flights from Ontario to London with no change fees?

Accepted Answer

Yes! Cheapflights helps users easily find flights from Ontario to London with no change fees.

Question 26

Can Cheapflights notify me if prices for flights from Ontario to London become cheaper?

Accepted Answer

Yes! Start tracking prices for Ontario to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Popular in	June
Cheapest in	January
Average price	£633
Round-trip from	£69

Cheap flights from Ontario to London from £278

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

The best prices from Ontario to London are usually found in January or October, booked 9 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Ontario to London

Popular in

Cheapest in

Average price

Round-trip from

What is the cheapest day to fly round-trip from Ontario to London?

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

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

When is the cheapest time to fly from Ontario to London (ONT - LON)?

Cheap Air Canada flights from Ontario to London

Take a peek at the cheapest Air Canada flights we've detected travelling from Ontario to London. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap Virgin Atlantic flights from Ontario to London

Browse through some of the cheapest Virgin Atlantic flights travelling from Ontario to London. Make sure to examine the flight information before completing your reservation.

Cheap Ontario to London flights in April & May 2024

Find cheap flight options from Ontario to London specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 916,678 searches. Prices were last updated on 29 April 2024.

Listed are some of the best fares we've found on flights departing from Ontario to London in 2024. For more flight deals, be sure to check back very soon.

Ontario to London 2024 flight deals

Discover exclusive flight deals for travel between Ontario and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 916,678 searches. Data last updated 29 April 2024.

Listed are some of the best fares we've found on flights departing from Ontario to London in 2024. For more flight deals, be sure to check back very soon.

Ontario to London flights leaving soon

Have a look at some of the flights available from Ontario to London departing last-minute. Tip: verify your flight details before completing your reservation.

One-way flights to London from Ontario

Some of the best available deals we've found on one-way flights from Ontario to London. Those seeking round-trip flights from Ontario to London should utilise the search form at the top of the page.

Find flights from Ontario to London within your budget

When is the best time to book a flight from Ontario to London?

Use this chart to determine the optimal time to book a return flight from Ontario to London. Price data was last updated on 28 January 2024.

Booking 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

When is the cheapest time to fly from Ontario to London?

Use this chart to determine the cheapest time to fly return from Ontario to London. Price data was last updated on 28 April 2024.

Average price of flights to London by month

Plan your trip from Ontario to London by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to London is currently £352 while a return flight costs £537. Price data was last updated on 28 April 2024.

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 29 April 2024.

Get a feel of what it's like to fly with Air Canada, Virgin Atlantic and American Airlines from Ontario to London by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Ontario to London?

Can I find flights from Ontario to London for under £600 on Cheapflights?

Are there last-minute flights available from Ontario to London for under £600?

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

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

What are the most popular routes from Ontario to London?

What does ONT to LHR mean?

Can I find deals for flights from Ontario to London that include extra baggage allowance?

Can I find deals on flights from Ontario to London with specific airlines?

Can I find deals for flights from Ontario to London that include hotel bookings?

How can I find direct flights from Ontario to London?

Can I find deals for business class flights from Ontario to London?

Can I find deals for flights from Ontario to London that allow pets onboard?

Can I find deals on last-minute flights from Ontario to London?

How recently were the Ontario to London flight deals updated?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to LondonSee prices for flight routes from nearby airports that may be better suited for you.

See prices for flight routes from nearby airports that may be better suited for you.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2024

Search flights from Ontario to London by cabin class

Find flights from Ontario to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to London?

Why should you use Cheapflights to find cheap flight tickets from Ontario to London?

Can Cheapflights find flights from Ontario to London with no change fees?

Can Cheapflights notify me if prices for flights from Ontario to London become cheaper?

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Alternative routes for Ontario to London
See prices for flight routes from nearby airports that may be better suited for you.