Cheap flights from Ontario to London from £377
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 25/9. 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
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 May 2024.
Popular in | June |
|---|---|
Cheapest in | January |
Average price | £809 |
Round-trip from | £69 |
What is the cheapest day to fly round-trip from Ontario to London?
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.
How far in advance should I book a flight from Ontario to London?
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 £715 1-2 weeks out and tickets from £999 for flights departing within the next 72 hours.
What is the cheapest month to fly from Ontario to London?
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.
When is the cheapest time to fly from Ontario to London (ONT - LON)?
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.
Cheap United Airlines flights from Ontario to London
Explore cheap flight options specifically provided by United Airlines for the route between Ontario and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 903,063 searches. Data last updated 3 May 2024.
Take a peek at the cheapest United Airlines 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 American Airlines flights from Ontario to London
Explore cheap flight options specifically provided by American Airlines for the route between Ontario and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 903,063 searches. Data last updated 3 May 2024.
Browse through some of the cheapest American Airlines flights travelling from Ontario to London. Make sure to examine the flight information before completing your reservation.
Cheap Ontario to London flights in May & June 2024
Find cheap flight options from Ontario to London specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 903,063 searches. Prices were last updated on 3 May 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 903,063 searches. Data last updated 3 May 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
Find last-minute flight options from Ontario to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 903,063 searches. Data last updated 3 May 2024.
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
Search for one-way flight options from Ontario to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 903,063 searches. Data last updated 3 May 2024.
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
Customise your flight search to find flights from Ontario to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 903,063 searches. Data last updated 3 May 2024.
Fly from
Fly to
Budget
£509 - £756
Route
Depart
Return
Price
OntarioLondon Gatwick
ONT - LGW
ONTLGW
Ontario
Wed 9/10
2 stops19h 00m
London Gatwick
Wed 23/10
2 stops18h 28m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Sun 29/9
1 stop13h 53m
London Heathrow
Tue 8/10
2 stops22h 11m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 24/9
1 stop12h 05m
London Heathrow
Fri 25/10
1 stop13h 42m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 29/10
1 stop16h 46m
London Heathrow
Fri 8/11
1 stop16h 23m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Sun 29/9
2 stops18h 42m
London Heathrow
Tue 8/10
2 stops20h 41m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Wed 15/5
1 stop12h 40m
London Heathrow
Tue 21/5
1 stop13h 41m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Sun 29/9
1 stop13h 53m
London Heathrow
Mon 7/10
1 stop15h 17m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Mon 9/9
2 stops28h 10m
London Heathrow
Sat 28/9
2 stops40h 47m
OntarioLondon Gatwick
ONT - LGW
ONTLGW
Ontario
Thu 30/5
1 stop24h 15m
London Gatwick
Thu 6/6
1 stop19h 39m
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 £399 while a return flight costs £576. Price data was last updated on 28 April 2024.
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
£99
March
£95
April
£101
May
£108
June
£137
July
£136
August
£116
September
£112
October
£127
November
£92
December
£97
Temperature and rainfall in London by month
Plan your trip to London by taking into account the average temperature and rainfall totals by month.
LON Temperature | 4 - 17 °C |
|---|
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 3 May 2024.
Get a feel of what it's like to fly with United Airlines, American Airlines and KLM 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.
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Boarding
Crew
Overall
Food
Comfort
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
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.
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.
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?
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.
Why should you use Cheapflights to find cheap flight tickets from Ontario to London?
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.
Can Cheapflights find flights from Ontario to London with no change fees?
Yes! Cheapflights helps users easily find flights from Ontario to London with no change fees.
Can Cheapflights notify me if prices for flights from Ontario to London become cheaper?
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.