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Cheap flights from Ontario to London from $440

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 9/13. 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 round-trip flights

Logo
7:00 am - 12:50 pmONT-LCY
21h 50m2 stops
Logo
9:50 am - 9:37 pmLCY-ONT
19h 47m2 stops
$683
Find Deal
Wed, Nov 5 - Tue, Nov 11
Delta Logo
1:15 pm - 4:40 pmONT-LCY
19h 25m2 stops
Delta Logo
1:45 pm - 11:42 pmLCY-ONT
17h 57m2 stops
$829Delta
Find Deal
Sun, Sep 28 - Sun, Oct 5
Iberia Logo
10:57 am - 2:35 pmONT-LCY
19h 38m2 stops
Iberia Logo
7:15 pm - 10:02 pmLCY-ONT
34h 47m2 stops
$928Iberia
Find Deal
Mon, Dec 15 - Tue, Jan 6
Logo
5:05 am - 11:40 amONT-LCY
22h 35m3 stops
Logo
9:25 am - 10:52 pmLCY-ONT
21h 27m2 stops
$1,102
Find Deal
Fri, Oct 17 - Wed, Oct 22
Iberia Logo
11:00 am - 2:05 pmONT-LCY
19h 05m2 stops
Iberia Logo
7:50 am - 10:02 pmLCY-ONT
22h 12m2 stops
$1,237Iberia
Find Deal
Tue, Dec 30 - Wed, Jan 7
Iberia Logo
11:00 am - 2:35 pmONT-LCY
19h 35m2 stops
Iberia Logo
7:15 pm - 1:48 pmLCY-ONT
26h 33m2 stops
$1,407Iberia
Find Deal
Mon, Dec 29 - Fri, Jan 9
Iberia Logo
6:40 am - 2:05 pmONT-LCY
23h 25m2 stops
Iberia Logo
7:50 am - 10:03 pmLCY-ONT
22h 13m2 stops
$1,495Iberia
Find Deal
Tue, Dec 16 - Fri, Jan 2

Iberia flights from Ontario to London City Airport

Our best Iberia deals on Ontario to London City Airport flight tickets
Iberia
Dec 15
ONT10:57 amOntario
19h 38m
2 stops
LCY2:35 pmLondon City
Jan 6
LCY7:15 pmLondon City
34h 47m
2 stops
ONT10:02 pmOntario
$928
Find similar
Iberia
Dec 30
ONT11:00 amOntario
19h 05m
2 stops
LCY2:05 pmLondon City
Jan 7
LCY7:50 amLondon City
22h 12m
2 stops
ONT10:02 pmOntario
$1,237
Find similar
Iberia
Dec 29
ONT11:00 amOntario
19h 35m
2 stops
LCY2:35 pmLondon City
Jan 9
LCY7:15 pmLondon City
26h 33m
2 stops
ONT1:48 pmOntario
$1,407
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated August 14, 2025.
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

Wed 11/5

7:00 am-12:50 pm

2 stops21h 50m

London City

Tue 11/11

9:50 am-9:37 pm

2 stops19h 47m

$683

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 9/28

1:15 pm-4:40 pm

2 stops19h 25m

London City

Sun 10/5

1:45 pm-11:42 pm

2 stops17h 57m

$829

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 12/15

10:57 am-2:35 pm

2 stops19h 38m

London City

Tue 1/6

7:15 pm-10:02 pm

2 stops34h 47m

$928

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Fri 10/17

5:05 am-11:40 am

3 stops22h 35m

London City

Wed 10/22

9:25 am-10:52 pm

2 stops21h 27m

$1,102

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Tue 12/30

11:00 am-2:05 pm

2 stops19h 05m

London City

Wed 1/7

7:50 am-10:02 pm

2 stops22h 12m

$1,237

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 12/29

11:00 am-2:35 pm

2 stops19h 35m

London City

Fri 1/9

7:15 pm-1:48 pm

2 stops26h 33m

$1,407

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Tue 12/16

6:40 am-2:05 pm

2 stops23h 25m

London City

Fri 1/2

7:50 am-10:03 pm

2 stops22h 13m

$1,495

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sat 9/13

1:42 pm-8:50 am

2 stops59h 08m

$440

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 8/27

8:14 am-11:55 am

2 stops19h 41m

$456

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 8/27

8:14 am-11:55 am

2 stops19h 41m

$457

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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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 day to depart on your flight to London City Airport?

The cheapest day to depart from Ontario to London City Airport is on a Wednesday. Travelers who choose to depart for London City Airport on a Wednesday will often find tickets for as low as $695. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London City Airport on Monday is $1,135.

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

Our most recent data shows that the best time of day to fly to London City Airport is in the afternoon. Flights from Ontario to London City Airport during this time can be as low as $763. Flights at noon are often more expensive with an average ticket price of $1,135.

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 round-trip 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

Best Price Found

$440

Fastest flight time

15h 55m

Direct flights

None
The best one-way flight to London City Airport from Ontario in the past 72 hours is $440. The best round-trip flight deal from Ontario to London City Airport found on momondo in the last 72 hours is $683.
The fastest flight from Ontario to London City Airport takes 15h 55m
There are no direct flights from Ontario to London City Airport. Popular non-direct route for this connection is Ontario Airport - London City Airport.
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  • How far is Ontario to London City by plane?

    The straight-line distance from Ontario to London City is 5422.9 mi. Flights usually cover this in 19h 05m, depending on flying conditions and air traffic around both airports.

  • 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 are updated daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to London City Airport.

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

    The necessary travel and health documents for your London City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Dover
Slough
Luton
Guildford
Milton Keynes
Dartford
Crawley
Hayes
Chelmsford
Stansted
Brentwood
Ilford
Colchester
Folkestone
Watford
Richmond
Canterbury
Wembley

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Ontario.

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 helps you find the best flight between Ontario and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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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