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Cheap flights from Ontario to London from £314

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 28/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Ontario to London

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
12:57 - 16:35
ONT
-
LCY
20h 38m
2 stops
Delta Logo
10:00 - 22:34
LCY
-
ONT
20h 34m
2 stops
£647Delta
Mon, 16 Mar - Mon, 6 Apr
Delta Logo
12:57 - 16:35
ONT
-
LCY
20h 38m
2 stops
Delta Logo
10:15 - 22:34
LCY
-
ONT
20h 19m
2 stops
£649Delta
Mon, 16 Mar - Mon, 6 Apr
Iberia Logo
14:08 - 16:30
ONT
-
LCY
18h 22m
2 stops
Iberia Logo
11:00 - 23:46
LCY
-
ONT
20h 46m
2 stops
£750Iberia
Thu, 23 Apr - Mon, 4 May
Iberia Logo
14:08 - 16:30
ONT
-
LCY
18h 22m
2 stops
Iberia Logo
11:00 - 23:46
LCY
-
ONT
20h 46m
2 stops
£752Iberia
Thu, 23 Apr - Mon, 4 May
Delta Logo
07:00 - 09:30
ONT
-
LCY
18h 30m
2 stops
Delta Logo
10:00 - 22:37
LCY
-
ONT
20h 37m
2 stops
£753Delta
Wed, 15 Apr - Tue, 5 May
Delta Logo
07:00 - 09:30
ONT
-
LCY
18h 30m
2 stops
Delta Logo
09:20 - 22:37
LCY
-
ONT
21h 17m
2 stops
£754Delta
Wed, 15 Apr - Tue, 5 May
Iberia Logo
14:08 - 16:30
ONT
-
LCY
18h 22m
2 stops
Iberia Logo
11:00 - 23:46
LCY
-
ONT
20h 46m
2 stops
£763Iberia
Wed, 15 Apr - Mon, 20 Apr
Iberia Logo
10:56 - 14:35
ONT
-
LCY
19h 39m
2 stops
Iberia Logo
07:50 - 22:29
LCY
-
ONT
22h 39m
2 stops
£837Iberia
Mon, 16 Feb - Thu, 19 Feb
KLM Logo
17:05 - 18:30
ONT
-
LCY
17h 25m
2 stops
KLM Logo
09:20 - 22:37
LCY
-
ONT
21h 17m
2 stops
£845KLM
Sun, 19 Apr - Wed, 22 Apr
KLM Logo
07:00 - 09:30
ONT
-
LCY
18h 30m
2 stops
KLM Logo
08:25 - 22:37
LCY
-
ONT
22h 12m
2 stops
£846KLM
Sun, 19 Apr - Wed, 22 Apr

Iberia flights from Ontario to London City Airport

Our best Iberia deals on Ontario to London City Airport flight tickets
Iberia
23 Apr
ONT14:08Ontario
18h 22m
2 stops
LCY16:30London City
4 May
LCY11:00London City
20h 46m
2 stops
ONT23:46Ontario
£750
Iberia
23 Apr
ONT14:08Ontario
18h 22m
2 stops
LCY16:30London City
4 May
LCY11:00London City
20h 46m
2 stops
ONT23:46Ontario
£752
Iberia
15 Apr
ONT14:08Ontario
18h 22m
2 stops
LCY16:30London City
20 Apr
LCY11:00London City
20h 46m
2 stops
ONT23:46Ontario
£763

KLM flights from Ontario to London City Airport

Our best KLM deals on Ontario to London City Airport flight tickets
KLM
19 Apr
ONT17:05Ontario
17h 25m
2 stops
LCY18:30London City
22 Apr
LCY09:20London City
21h 17m
2 stops
ONT22:37Ontario
£845
KLM
19 Apr
ONT07:00Ontario
18h 30m
2 stops
LCY09:30London City
22 Apr
LCY08:25London City
22h 12m
2 stops
ONT22:37Ontario
£846

momondo Fare Finder

 
Customise your flight search to find flights from Ontario to London City Airport 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, momondo users made 279,928 searches. Data last updated 4 February 2026.
Use the filters below to find and compare flights from Ontario to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 16/3

12:57-16:35

2 stops20h 38m

London City

Mon 6/4

10:00-22:34

2 stops20h 34m

£647

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 16/3

12:57-16:35

2 stops20h 38m

London City

Mon 6/4

10:15-22:34

2 stops20h 19m

£649

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 23/4

14:08-16:30

2 stops18h 22m

London City

Mon 4/5

11:00-23:46

2 stops20h 46m

£750

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 23/4

14:08-16:30

2 stops18h 22m

London City

Mon 4/5

11:00-23:46

2 stops20h 46m

£752

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 15/4

07:00-09:30

2 stops18h 30m

London City

Tue 5/5

10:00-22:37

2 stops20h 37m

£753

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 15/4

07:00-09:30

2 stops18h 30m

London City

Tue 5/5

09:20-22:37

2 stops21h 17m

£754

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 15/4

14:08-16:30

2 stops18h 22m

London City

Mon 20/4

11:00-23:46

2 stops20h 46m

£763

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 16/2

10:56-14:35

2 stops19h 39m

London City

Thu 19/2

07:50-22:29

2 stops22h 39m

£837

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 19/4

17:05-18:30

2 stops17h 25m

London City

Wed 22/4

09:20-22:37

2 stops21h 17m

£845

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 19/4

07:00-09:30

2 stops18h 30m

London City

Wed 22/4

08:25-22:37

2 stops22h 12m

£846

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to London from

How to get the cheapest flight ticket from Ontario to London City Airport

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 airline that flies from Ontario to London City?

Iberia and Delta are the most popular carriers operating from Ontario to London City

When to book flights from Ontario to London City Airport

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

Cheap Ontario to London City Airport (ONT to LCY) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to London City Airport

Fastest flight time

18h 30m

Direct flights

None
The fastest flight from Ontario to London City Airport takes 18h 30m
There are no direct flights from Ontario to London City Airport. There are no popular flight routes from Ontario to London City Airport.
Search flight deals

  • How far is Ontario to London City by plane?

    Ontario and London City are 5422.9 mi apart from one another. In terms of flight time, this usually takes a little over 18h 30m.

  • When did momondo last update prices for flights from Ontario Airport to London City Airport?

    Prices for flights from Ontario Airport to London City Airport refresh daily.

  • How old do you have to be to fly from Ontario Airport to London City Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to London City Airport.

  • What documentation or ID do you need to fly to London City Airport?

    The travel and health documents you'll need for your trip to London City Airport 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 City Airport. 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
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Dover
Folkestone
Bedford
Colchester
Wembley
Worthing
Ramsgate

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to London. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to London with flexible booking policies on momondo?

Flights from Ontario to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to London.

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.

An easier way to manage your London City Airport trip

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