Cheap flights from Ontario to London from £235
This is the cheapest one-way flight price, found on 6/12. Prices may vary by date and flight preferences.
The best prices from Ontario to London are usually found in January or October, booked 9 days in advance, depart on a Wednesday or Monday and return on a Thursday
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How to find the cheapest flight from Ontario (ONT) to London (LON)
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 8 December 2023.
Popular in | June |
|---|---|
Cheapest in | January |
Average price | £893 |
Round-trip from | £59 |
What is the cheapest day to fly round-trip from Ontario to London?
Departing on a Friday is a good option for securing a great price. You can expect to save up to 57% 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 £712 1-2 weeks out and tickets from £994 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 £333.
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 37% on airfare.
Cheap Delta flights from Ontario to London
Explore cheap flight options specifically provided by Delta 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 800,620 searches. Data last updated 8 December 2023.
Take a peek at the cheapest Delta 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 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 800,620 searches. Data last updated 8 December 2023.
Browse through some of the cheapest United Airlines flights travelling from Ontario to London. Make sure to examine the flight information before completing your reservation.
Cheap Ontario to London flights in December & January 2023
Find cheap flight options from Ontario to London specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 800,620 searches. Prices were last updated on 8 December 2023.
Listed are some of the best fares we've found on flights departing from Ontario to London in 2023. For more flight deals, be sure to check back very soon.
Ontario to London 2023 flight deals
Discover exclusive flight deals for travel between Ontario and London in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 800,620 searches. Data last updated 8 December 2023.
Listed are some of the best fares we've found on flights departing from Ontario to London in 2023. 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 800,620 searches. Data last updated 8 December 2023.
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 800,620 searches. Data last updated 8 December 2023.
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 800,620 searches. Data last updated 8 December 2023.
Fly from
Fly to
Budget
£490 - £612
Route
Depart
Return
Price
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Wed 17/1
1 stop20h 10m
London Heathrow
Mon 22/1
2 stops21h 32m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Wed 27/3
1 stop22h 40m
London Heathrow
Thu 11/4
2 stops19h 00m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Sun 31/3
1 stop13h 47m
London Heathrow
Thu 11/4
2 stops22h 11m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Sun 21/4
1 stop12h 04m
London Heathrow
Wed 1/5
1 stop14h 03m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 9/1
1 stop12h 49m
London Heathrow
Tue 23/1
1 stop14h 51m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Fri 15/3
1 stop13h 45m
London Heathrow
Tue 19/3
1 stop17h 34m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Thu 22/2
1 stop20h 10m
London Heathrow
Thu 29/2
1 stop15h 24m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Wed 17/4
1 stop12h 55m
London Heathrow
Sun 28/4
1 stop14h 45m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Sun 31/3
2 stops18h 33m
London Heathrow
Wed 10/4
2 stops22h 38m
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 312.76 GBP while a return flight costs 537.70 GBP. Price data was last updated on 3 December 2023.
Currently, November is the cheapest month in which you can book a flight from Ontario to London (average of £114). Flying from Ontario to London in July is currently the most expensive (average of £162). 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
£96
February
£113
March
£95
April
£105
May
£105
June
£125
July
£129
August
£102
September
£109
October
£128
November
£91
December
£99
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 8 December 2023.
Get a feel of what it's like to fly with Delta, United Airlines and British Airways 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.
Comfort
Crew
Food
Overall
Entertainment
Boarding
Reviews
La attenzione in volo e sta gentilissima e il personale molto competente.
Comfort
Crew
Food
Overall
Entertainment
Boarding
Reviews
La attenzione in volo e sta gentilissima e il personale molto competente.
Comfort
Crew
Food
Overall
Entertainment
Boarding
Reviews
La attenzione in volo e sta gentilissima e il personale molto competente.
Comfort
Crew
Food
Overall
Entertainment
Boarding
Reviews
La attenzione in volo e sta gentilissima e il personale molto competente.
Comfort
Crew
Food
Overall
Entertainment
Boarding
Reviews
La attenzione in volo e sta gentilissima e il personale molto competente.
Comfort
Crew
Food
Overall
Entertainment
Boarding
Reviews
La attenzione in volo e sta gentilissima e il personale molto competente.
Average temperature in London by month
Plan your trip to London by selecting the month that matches your preferred temperature. July sees the highest average temperature while January sees the lowest average temperature. Temperature data was last updated on 3 December 2023.
LON Temperature | 4 - 17 °C |
|---|
Average rainfall in London by month
Keep in mind the precipitation totals in London by selecting the month that matches your preferred temperature. London sees an average of 57.50 precipitation per year with the most occurring in January. Precipitation data was last updated on 3 December 2023.
LON Rainfall | 40 - 70 mm |
|---|
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?
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.
Can I find flights from Ontario to London for under £500 on Cheapflights?
Yes, there are multiple flights from Ontario to London for under £500. The cheapest flight booked recently is on Delta for just £490, but on average you can expect to pay £507.
Are there last-minute flights available from Ontario to London for under £700?
There are currently 20+ open flights from Ontario to London within the next 7 days for less than £700.
What are the cheapest airlines flying from Ontario to London round-trip?
Delta, at £490, was found to be the cheapest airline from Ontario to London.Alternate airlines flying return to your destination include Virgin Atlantic and Iberia. Users have found that Delta is 27% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Ontario to London one-way?
£303 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from £363 and £380, respectively.
What are the most popular routes from Ontario to London?
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.
What does ONT to LHR mean?
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 City Airport (LCY), London Stansted Airport (STN), London Luton Airport (LTN), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.
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Alternative routes for Ontario to LondonSee prices for flight routes from nearby airports that may be better suited for you.
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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.