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United Airlines flights from Ontario to London
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Use the filters below to find and compare flights from Ontario to London that are best for you.
Fly from
Fly to
Route
Depart
Return
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Mon 16/11
12:01-16:00
2 stops19h 59m
London Heathrow
Mon 23/11
06:40-08:30
3 stops33h 50m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Sun 22/11
22:40-17:40
3 stops35h 00m
London Heathrow
Fri 4/12
19:30-23:23
2 stops35h 53m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Mon 16/11
12:01-16:00
2 stops19h 59m
London Heathrow
Mon 23/11
06:40-00:24
2 stops25h 44m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Tue 17/11
10:35-21:40
3 stops27h 05m
London Heathrow
Tue 24/11
06:40-00:24
2 stops25h 44m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Sun 15/11
20:35-16:00
3 stops35h 25m
London Heathrow
Mon 23/11
06:40-00:24
2 stops25h 44m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Sun 15/11
20:35-16:00
3 stops35h 25m
London Heathrow
Tue 24/11
06:40-00:24
2 stops25h 44m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Mon 26/10
12:16-09:00
1 stop13h 44m
London Heathrow
Tue 10/11
10:45-16:24
1 stop13h 39m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Tue 17/11
10:35-17:40
3 stops23h 05m
London Heathrow
Tue 24/11
06:40-07:20
3 stops32h 40m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Tue 17/11
10:35-21:40
3 stops27h 05m
London Heathrow
Thu 26/11
06:40-07:20
3 stops32h 40m
OntarioLondon
ONT Ontario - LHR London Heathrow
ONTLHR
Ontario
Mon 16/11
12:01-21:40
2 stops25h 39m
London Heathrow
Thu 26/11
06:40-07:20
3 stops32h 40m
See travel insights to London from
How to get the cheapest flight ticket from Ontario to London
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to London?
The cheapest month to fly to London from Ontario is in January. Flight prices, which tend to average around £520, are often lower during this time because this is during the off-season. The month of December is another great option to travel to London, with average flight prices from Ontario averaging around £558.
What is the cheapest day to depart on your flight to London?
Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £728. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to London for around £943.
What is the cheapest airline that flies from Ontario to London?
KLM, British Airways, and United Airlines are the most popular carriers operating from Ontario to London
Which airlines fly to London?
Virgin Atlantic, British Airways and American Airlines are the top three most popular airlines that fly to London from Ontario according to our data. Virgin Atlantic is the first choice among our users, with 43% of people opting to fly with this airline when travelling to London. Keep in mind that there are 11 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to London
Cheap Ontario to London (ONT to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to London
Frequently asked questions about flying from Ontario to London
How far is Ontario to London by plane?
Ontario and London are 5417.5 mi apart from one another. Typically, this will take 12h 20m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to London?
Prices for flights from Ontario Airport to London refresh daily.
How old do you have to be to fly from Ontario Airport to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to London?
Finding the right flight to London from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.
Can I find flights from Ontario to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ontario to London flights to just show those with flexible booking policies.
How can momondo help me find flights from Ontario to London?
Once you have performed a search for Ontario to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Ontario to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ontario to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.