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Cheap flights from Ontario to London from £232

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to London departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Delta Logo
11:40 - 14:15ONT-LHR
18h 35m1 stop
Delta Logo
11:30 - 22:40LHR-ONT
19h 10m2 stops
£385Delta
Find Deal
Mon, 18 Aug - Thu, 18 Sep
Delta Logo
11:45 - 13:30ONT-LHR
17h 45m1 stop
Delta Logo
11:45 - 22:40LHR-ONT
18h 55m2 stops
£386Delta
Find Deal
Wed, 20 Aug - Wed, 27 Aug
Delta Logo
06:05 - 07:15ONT-LHR
17h 10m2 stops
Delta Logo
11:30 - 22:23LHR-ONT
18h 53m2 stops
£389Delta
Find Deal
Mon, 18 Aug - Thu, 18 Sep
KLM Logo
12:00 - 10:35ONT-LHR
14h 35m1 stop
KLM Logo
14:20 - 22:41LHR-ONT
16h 21m1 stop
£391KLM
Find Deal
Tue, 18 Nov - Wed, 26 Nov
KLM Logo
07:05 - 06:45ONT-LHR
15h 40m1 stop
KLM Logo
09:20 - 19:15LHR-ONT
17h 55m1 stop
£392KLM
Find Deal
Mon, 18 Aug - Thu, 18 Sep
Virgin Atlantic Logo
07:05 - 06:45ONT-LHR
15h 40m1 stop
Virgin Atlantic Logo
10:55 - 23:40LHR-ONT
20h 45m1 stop
£403Virgin Atlantic
Find Deal
Sun, 17 Aug - Sun, 24 Aug
Iberia Logo
14:57 - 12:45ONT-LHR
13h 48m1 stop
Iberia Logo
06:30 - 22:33LHR-ONT
24h 03m2 stops
£468Iberia
Find Deal
Tue, 2 Sep - Wed, 17 Sep
Air Canada Logo
05:10 - 06:30ONT-LHR
17h 20m2 stops
Air Canada Logo
14:05 - 17:29LHR-ONT
35h 24m2 stops
£469Air Canada
Find Deal
Wed, 20 Aug - Tue, 26 Aug
Iberia Logo
12:47 - 14:25ONT-LHR
17h 38m1 stop
Iberia Logo
20:00 - 22:48LHR-ONT
34h 48m2 stops
£478Iberia
Find Deal
Mon, 25 Aug - Mon, 1 Sep
Air Canada Logo
05:10 - 10:00ONT-LHR
20h 50m2 stops
Air Canada Logo
14:05 - 12:32LHR-ONT
54h 27m2 stops
£500Air Canada
Find Deal
Wed, 20 Aug - Sun, 7 Sep

KLM flights from Ontario to London

Our best KLM deals on Ontario to London flight tickets
KLM
18 Nov
ONT12:00Ontario
14h 35m
1 stop
LHR10:35London Heathrow
26 Nov
LHR14:20London Heathrow
16h 21m
1 stop
ONT22:41Ontario
KLM
18 Aug
ONT07:05Ontario
15h 40m
1 stop
LHR06:45London Heathrow
18 Sept
LHR09:20London Heathrow
17h 55m
1 stop
ONT19:15Ontario
KLM
15 Sept
ONT09:50Ontario
16h 00m
1 stop
LHR09:50London Heathrow
26 Sept
LHR13:05London Heathrow
17h 18m
1 stop
ONT22:23Ontario

Iberia flights from Ontario to London

Our best Iberia deals on Ontario to London flight tickets
Iberia
2 Sept
ONT14:57Ontario
13h 48m
1 stop
LHR12:45London Heathrow
17 Sept
LHR06:30London Heathrow
24h 03m
2 stops
ONT22:33Ontario
Iberia
25 Aug
ONT12:47Ontario
17h 38m
1 stop
LHR14:25London Heathrow
1 Sept
LHR20:00London Heathrow
34h 48m
2 stops
ONT22:48Ontario
Iberia
7 Sept
ONT12:45Ontario
14h 05m
1 stop
LHR10:50London Heathrow
19 Sept
LHR12:00London Heathrow
14h 54m
1 stop
ONT18:54Ontario

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 typical price of a round-trip flight between Ontario and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Ontario is in September. Flight prices, which tend to average around £479, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Ontario averaging around £494.

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 £503. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to London for around £581.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £522. Flights at midday are often more expensive, with an average ticket price of £671.

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

You are more likely to see cheaper flights to London from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £615 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ontario for as low as £445 on momondo.

When to book flights from Ontario to London

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

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

Best price found

£232

Fastest flight time

12h 05m

Direct flights

None

Airports in London

3 airports
The best one-way flight to London from Ontario in the past 72 hours is £232. The best return flight deal from Ontario to London found on momondo in the last 72 hours is £385.
The fastest flight from Ontario to London takes 12h 05m
There are no direct flights from Ontario to London. Popular non-direct routes for this connection are Ontario Airport - London Gatwick Airport, Ontario Airport - London Heathrow Airport and Ontario Airport - London City Airport.
There are 3 airports near London: London City (LCY), London Heathrow (LHR), London Gatwick (LGW)

  • How far is Ontario to London by plane?

    Ontario and London are 5417.5 mi apart from one another. Typically, this will take 12h 05m 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 locations
Eastbourne
Milton Keynes
Luton
Southend-on-Sea
Slough
Maidstone
Canterbury
Gatwick
Ipswich
Ilford
Dartford
Hounslow
Margate
Colchester
Guildford
Worthing
Winchester
Dover
Chelmsford
Croydon

Why 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.


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1 adult
Wed 9/7
Wed 16/7

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London