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Cheap flights from Ontario to London from £211

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 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to London

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from Ontario to London.
10:54 - 10:50ONT-LHR
15h 56m1 stop
15:10 - 23:50LHR-ONT
16h 40m1 stop
£467Iberia
Find Deal
Thu, 17 Apr - Tue, 29 Apr
13:14 - 14:40ONT-LHR
17h 26m1 stop
11:15 - 21:57LHR-ONT
18h 42m1 stop
£492British Airways
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Wed, 7 May - Fri, 16 May
13:20 - 13:30ONT-LHR
16h 10m2 stops
09:55 - 22:43LHR-ONT
20h 48m2 stops
£523Delta
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Mon, 28 Apr - Mon, 5 May
12:07 - 13:30ONT-LHR
17h 23m1 stop
06:15 - 22:43LHR-ONT
24h 28m2 stops
£524Delta
Find Deal
Thu, 17 Apr - Tue, 29 Apr
16:35 - 12:50ONT-LHR
12h 15m1 stop
15:40 - 21:58LHR-ONT
14h 18m1 stop
£534American Airlines
Find Deal
Thu, 17 Apr - Mon, 21 Apr
13:35 - 09:40ONT-LHR
12h 05m1 stop
09:30 - 20:34LHR-ONT
19h 04m2 stops
£540United Airlines
Find Deal
Mon, 21 Apr - Wed, 7 May
06:00 - 06:35ONT-LHR
16h 35m2 stops
17:40 - 12:38LHR-ONT
26h 58m2 stops
Sun, 4 May - Tue, 13 May
13:35 - 09:40ONT-LHR
12h 05m1 stop
14:50 - 20:53LHR-ONT
14h 03m1 stop
£550United Airlines
Find Deal
Wed, 30 Apr - Wed, 14 May
08:15 - 06:25ONT-LHR
14h 10m1 stop
15:40 - 21:38LHR-ONT
13h 58m1 stop
£673American Airlines
Find Deal
Tue, 15 Jul - Thu, 31 Jul
06:00 - 17:15ONT-LCY
27h 15m2 stops
08:55 - 22:00LCY-ONT
21h 05m2 stops
Wed, 7 May - Fri, 16 May

Iberia flights from Ontario to London

Our best Iberia deals on Ontario to London flight tickets
Iberia
17 Apr
ONT10:54Ontario
15h 56m
1 stop
LHR10:50London Heathrow
29 Apr
LHR15:10London Heathrow
16h 40m
1 stop
ONT23:50Ontario
Iberia
13 Aug
ONT12:46Ontario
17h 39m
1 stop
LHR14:25London Heathrow
30 Aug
LHR11:30London Heathrow
19h 59m
2 stops
ONT23:29Ontario
Iberia
13 Aug
ONT08:37Ontario
16h 23m
1 stop
LHR09:00London Heathrow
30 Aug
LHR08:20London Heathrow
21h 24m
1 stop
ONT21:44Ontario

British Airways flights from Ontario to London

Our best British Airways deals on Ontario to London flight tickets
British Airways
7 May
ONT13:14Ontario
17h 26m
1 stop
LHR14:40London Heathrow
16 May
LHR11:15London Heathrow
18h 42m
1 stop
ONT21:57Ontario
British Airways
21 Apr
ONT16:35Ontario
14h 05m
1 stop
LHR14:40London Heathrow
7 May
LHR15:40London Heathrow
14h 17m
1 stop
ONT21:57Ontario
British Airways
7 May
ONT06:15Ontario
23h 10m
2 stops
LHR13:25London Heathrow
16 May
LHR15:40London Heathrow
14h 17m
1 stop
ONT21:57Ontario

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 October. Flight prices, which tend to average around £516, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Ontario averaging around £519.

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 £550. 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 £649.

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 morning when flights can be purchased for as low as £564. Flights at midday are often more expensive, with an average ticket price of £675.

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 16 weeks ahead of your departure date. In general, you can expect to find flights to London for around £620 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Ontario for as low as £565 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

£211

Fastest flight time

12h 00m

Direct flights

None

Airports in London

3 airports
The best one-way flight to London from Ontario in the past 72 hours is £211. The best return flight deal from Ontario to London found on momondo in the last 72 hours is £467.
The fastest flight from Ontario to London takes 12h 00m
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
Slough
Southend-on-Sea
Gatwick
Ipswich
Maidstone
Canterbury
Margate
Dartford
Hounslow
Ilford
Colchester
Guildford
Winchester
Worthing
Croydon
Chichester
Crawley

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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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