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Cheap flights from Ontario to London from $345

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 9/15. 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 round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:00 pm - 4:40 pm
ONT
-
LCY
19h 40m
2 stops
Delta Logo
10:00 am - 10:40 pm
LCY
-
ONT
20h 40m
2 stops
$946Delta
Wed, Sep 23 - Mon, Sep 28
Delta Logo
1:00 pm - 4:40 pm
ONT
-
LCY
19h 40m
2 stops
Delta Logo
9:20 am - 10:14 pm
LCY
-
ONT
20h 54m
2 stops
$973Delta
Thu, Oct 8 - Thu, Oct 15
Iberia Logo
10:29 am - 3:15 pm
ONT
-
LCY
20h 46m
2 stops
Iberia Logo
9:35 am - 11:06 pm
LCY
-
ONT
21h 31m
2 stops
$1,012Iberia
Sun, Sep 6 - Wed, Sep 16
Iberia Logo
10:25 am - 3:15 pm
ONT
-
LCY
20h 50m
2 stops
Iberia Logo
7:50 am - 10:19 pm
LCY
-
ONT
22h 29m
2 stops
$1,059Iberia
Sun, Jul 19 - Wed, Dec 2
Iberia Logo
7:00 am - 8:50 am
ONT
-
LCY
17h 50m
2 stops
Iberia Logo
7:50 am - 10:19 pm
LCY
-
ONT
22h 29m
2 stops
$1,199Iberia
Sun, Nov 15 - Fri, Dec 4
Iberia Logo
10:47 am - 2:35 pm
ONT
-
LCY
43h 48m
2 stops
Iberia Logo
7:50 am - 10:19 pm
LCY
-
ONT
22h 29m
2 stops
$1,206Iberia
Sat, Nov 14 - Fri, Dec 4
Iberia Logo
7:00 am - 2:35 pm
ONT
-
LCY
23h 35m
2 stops
Iberia Logo
7:50 am - 10:23 pm
LCY
-
ONT
22h 33m
2 stops
$1,260Iberia
Sun, Nov 15 - Thu, Nov 26
Iberia Logo
10:47 am - 8:50 am
ONT
-
LCY
38h 03m
2 stops
Iberia Logo
7:50 am - 10:19 pm
LCY
-
ONT
22h 29m
2 stops
$1,267Iberia
Sat, Nov 14 - Thu, Dec 3
Iberia Logo
10:47 am - 8:50 am
ONT
-
LCY
38h 03m
2 stops
Iberia Logo
7:15 pm - 10:23 pm
LCY
-
ONT
35h 08m
2 stops
$1,305Iberia
Sat, Nov 14 - Mon, Nov 30
Iberia Logo
7:00 am - 8:50 am
ONT
-
LCY
17h 50m
2 stops
Iberia Logo
7:50 am - 11:57 pm
LCY
-
ONT
24h 07m
2 stops
$1,365Iberia
Tue, Nov 17 - Wed, Nov 25

Delta flights from Ontario to London City Airport

Our best Delta deals on Ontario to London City Airport flight tickets
Delta
Sep 23
ONT1:00 pmOntario
19h 40m
2 stops
LCY4:40 pmLondon City
Sep 28
LCY10:00 amLondon City
20h 40m
2 stops
ONT10:40 pmOntario
$946
Delta
Oct 8
ONT1:00 pmOntario
19h 40m
2 stops
LCY4:40 pmLondon City
Oct 15
LCY9:20 amLondon City
20h 54m
2 stops
ONT10:14 pmOntario
$973

Iberia flights from Ontario to London City Airport

Our best Iberia deals on Ontario to London City Airport flight tickets
Iberia
Sep 6
ONT10:29 amOntario
20h 46m
2 stops
LCY3:15 pmLondon City
Sep 16
LCY9:35 amLondon City
21h 31m
2 stops
ONT11:06 pmOntario
$1,012
Iberia
Jul 19
ONT10:25 amOntario
20h 50m
2 stops
LCY3:15 pmLondon City
Dec 2
LCY7:50 amLondon City
22h 29m
2 stops
ONT10:19 pmOntario
$1,059
Iberia
Nov 15
ONT7:00 amOntario
17h 50m
2 stops
LCY8:50 amLondon City
Dec 4
LCY7:50 amLondon City
22h 29m
2 stops
ONT10:19 pmOntario
$1,199

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 May 25, 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

Cheapest round-trip

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 9/23

1:00 pm-4:40 pm

2 stops19h 40m

London City

Mon 9/28

10:00 am-10:40 pm

2 stops20h 40m

$946

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 10/8

1:00 pm-4:40 pm

2 stops19h 40m

London City

Thu 10/15

9:20 am-10:14 pm

2 stops20h 54m

$973

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 9/6

10:29 am-3:15 pm

2 stops20h 46m

London City

Wed 9/16

9:35 am-11:06 pm

2 stops21h 31m

$1,012

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 7/19

10:25 am-3:15 pm

2 stops20h 50m

London City

Wed 12/2

7:50 am-10:19 pm

2 stops22h 29m

$1,059
Quickest round-trip

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 11/15

7:00 am-8:50 am

2 stops17h 50m

London City

Fri 12/4

7:50 am-10:19 pm

2 stops22h 29m

$1,199

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sat 11/14

10:47 am-2:35 pm

2 stops43h 48m

London City

Fri 12/4

7:50 am-10:19 pm

2 stops22h 29m

$1,206

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 11/15

7:00 am-2:35 pm

2 stops23h 35m

London City

Thu 11/26

7:50 am-10:23 pm

2 stops22h 33m

$1,260

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sat 11/14

10:47 am-8:50 am

2 stops38h 03m

London City

Thu 12/3

7:50 am-10:19 pm

2 stops22h 29m

$1,267

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sat 11/14

10:47 am-8:50 am

2 stops38h 03m

London City

Mon 11/30

7:15 pm-10:23 pm

2 stops35h 08m

$1,305

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Tue 11/17

7:00 am-8:50 am

2 stops17h 50m

London City

Wed 11/25

7:50 am-11:57 pm

2 stops24h 07m

$1,365

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 airline that flies from Ontario to London City?

Delta and United Airlines 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 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

Fastest flight time

20h 53m

Direct flights

None
The fastest flight from Ontario to London City Airport takes 20h 53m
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

Frequently asked questions about flying from Ontario to London City Airport

  • 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 20h 53m, 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
Milton Keynes
Dover
Luton
Hayes
Crawley
Wembley
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Ilford
Cobham
Folkestone
Uxbridge
Romford

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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