Cheap flights from Ontario (ONT) to London (LON) from $313
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 7/25. 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 April or January, booked 72 days in advance, depart on a Tuesday or Thursday and return on a Tuesday
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 May 21, 2024.
Popular in | June |
|---|---|
Cheapest in | April |
Round-trip from | $643 |
One-way from | $454 |
What is the cheapest day to fly round-trip from Ontario to London?
Friday flights are found to be more expensive to fly from Ontario to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.
How far in advance should I book a flight from Ontario to London?
To save on the cost of your flight from Ontario to London, book at least 15 days before your planned departure. Booking around this time can save you about 31% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $758 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,025.
What is the cheapest month to fly from Ontario to London?
Our data shows that October tends to be the cheapest month to fly to London from Ontario. Users have commonly found prices around $715 for the month, but tickets can be as low as $429. Due to multiple factors, prepare for potentially higher prices in June.
When is the cheapest time to fly from Ontario to London (ONT - LON)?
It’s optimal to fly from Ontario to London at noon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the afternoon.
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 2,663,308 searches. Data last updated May 21, 2024.
Check out some of the cheapest United Airlines flights we've come across from Ontario to London. Make sure to check back often as deals are often changing.
Cheap Iberia flights from Ontario to London
Explore cheap flight options specifically provided by Iberia 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 2,663,308 searches. Data last updated May 21, 2024.
Some of the best deals we've found on Iberia flights traveling from Ontario to London. Ensure the flight price, dates, time, and airline match your criteria before you book.
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 2,663,308 searches. Prices were last updated on May 21, 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 2,663,308 searches. Data last updated May 21, 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 2,663,308 searches. Data last updated May 21, 2024.
Consider one of these great deals we found on last-minute flights from Ontario to London. Users should examine the flight details to ensure there are no surprises.
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 2,663,308 searches. Data last updated May 21, 2024.
Users in need of a one-way flight from Ontario to London can choose from these deals. Those seeking round-trip flights from Ontario to London should utilize the search form at the the top of the page.
Find flights from Ontario to London within your budget
Customize 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 2,663,308 searches. Data last updated May 21, 2024.
Fly from
Fly to
Budget
$624 - $767
Route
Depart
Return
Price
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 10/29
1 stop15h 25m
London Heathrow
Fri 11/8
2 stops24h 13m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Wed 11/13
1 stop12h 40m
London Heathrow
Wed 11/27
1 stop16h 50m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 10/29
1 stop21h 10m
London Heathrow
Fri 11/8
2 stops20h 30m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 10/29
1 stop15h 42m
London Heathrow
Fri 11/8
1 stop16h 23m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 10/29
2 stops18h 55m
London Heathrow
Fri 11/8
2 stops39h 00m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Thu 10/10
1 stop13h 10m
London Heathrow
Wed 10/23
1 stop15h 01m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 10/1
1 stop13h 09m
London Heathrow
Tue 10/8
1 stop22h 56m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Sat 8/31
1 stop22h 26m
London Heathrow
Wed 9/11
1 stop15h 01m
OntarioLondon Heathrow
ONT - LHR
ONTLHR
Ontario
Tue 8/20
2 stops18h 20m
London Heathrow
Mon 8/26
2 stops21h 01m
When is the best time to book a flight from Ontario to London?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to London. Price data was last updated on May 10, 2024.
To ensure you get the cheapest price possible for a flight from Ontario to London, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
When is the cheapest time to fly from Ontario to London?
Use this chart to determine the cheapest time to fly round-trip from Ontario to London. Price data was last updated on May 12, 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 $431 while a round-trip flight costs $672. Price data was last updated on May 19, 2024.
Currently, November is the cheapest month in which you can book a flight from Ontario to London (average of $653). Flying from Ontario to London in June is currently the most expensive (average of $1,150). 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
$673
February
$662
March
$715
April
$692
May
$733
June
$1,150
July
$976
August
$775
September
$745
October
$708
November
$653
December
$672
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 | 39.2 - 62.6 °F |
|---|
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 May 21, 2024.
Get a feel of what it's like to fly with United Airlines, Iberia and KLM from Ontario to London by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Overall
Boarding
Food
Comfort
Crew
Entertainment
Reviews
Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Overall
Boarding
Food
Comfort
Crew
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.
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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.
Top 6 airlines flying from Ontario to London
Discover the top 6 airlines that operate flights from Ontario to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,663,308 searches. Data last updated May 21, 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 travelers 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?
Deals for Ontario to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Ontario to London?
Cheapflights simply makes it quick and affordable to book flights from Ontario to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Ontario to London with no change fees?
Yes, we can. To see specific flights from Ontario to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Ontario to London become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!