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Cheap flights from Ontario to London from $433

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 2/4. 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 round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
11:05 am - 2:05 pmONT-LCY
19h 00m2 stops
Iberia Logo
7:50 am - 9:57 pmLCY-ONT
22h 07m2 stops
$646Iberia
Find Deal
mar., feb. 17 - vie., feb. 27
Multiple Airlines Logo
7:00 am - 12:50 pmONT-LCY
21h 50m2 stops
Multiple Airlines Logo
9:50 am - 10:51 pmLCY-ONT
21h 01m2 stops
$693Multiple Airlines
Find Deal
mar., nov. 18 - mar., nov. 25
Multiple Airlines Logo
6:00 am - 4:40 pmONT-LCY
26h 40m2 stops
Multiple Airlines Logo
9:50 am - 10:51 pmLCY-ONT
21h 01m2 stops
$704Multiple Airlines
Find Deal
mar., nov. 18 - mar., nov. 25
Multiple Airlines Logo
7:00 am - 12:50 pmONT-LCY
21h 50m2 stops
Multiple Airlines Logo
5:15 pm - 8:44 pmLCY-ONT
35h 29m2 stops
$713Multiple Airlines
Find Deal
mar., nov. 18 - lun., nov. 24
Iberia Logo
10:47 am - 2:05 pmONT-LCY
19h 18m2 stops
Iberia Logo
7:50 am - 11:55 pmLCY-ONT
24h 05m2 stops
$746Iberia
Find Deal
mié., dic. 3 - jue., dic. 11
Multiple Airlines Logo
6:00 am - 4:40 pmONT-LCY
26h 40m2 stops
Multiple Airlines Logo
12:20 pm - 8:42 pmLCY-ONT
40h 22m3 stops
$832Multiple Airlines
Find Deal
sáb., nov. 29 - sáb., dic. 6
Multiple Airlines Logo
7:00 am - 12:40 pmONT-LCY
22h 40m2 stops
Multiple Airlines Logo
7:10 pm - 6:36 pmLCY-ONT
31h 26m2 stops
$833Multiple Airlines
Find Deal
sáb., nov. 1 - lun., nov. 10
KLM Logo
7:05 am - 7:15 amONT-LCY
16h 10m2 stops
KLM Logo
10:00 am - 9:14 pmLCY-ONT
19h 14m2 stops
$1,239KLM
Find Deal
jue., ene. 1 - vie., ene. 30
KLM Logo
7:05 am - 7:15 amONT-LCY
16h 10m2 stops
KLM Logo
10:00 am - 9:14 pmLCY-ONT
19h 14m2 stops
$1,554KLM
Find Deal
jue., ene. 1 - sáb., ene. 31
KLM Logo
7:05 am - 7:15 amONT-LCY
16h 10m2 stops
KLM Logo
7:45 am - 7:39 pmLCY-ONT
19h 54m2 stops
$1,776KLM
Find Deal
jue., nov. 20 - mié., dic. 10

Iberia flights from Ontario to London City Airport

Our best Iberia deals on Ontario to London City Airport flight tickets
Iberia
Feb 17
ONT11:05 amOntario
19h 00m
2 stops
LCY2:05 pmLondon City
Feb 27
LCY7:50 amLondon City
22h 07m
2 stops
ONT9:57 pmOntario
$646
Find similar
Iberia
Dec 3
ONT10:47 amOntario
19h 18m
2 stops
LCY2:05 pmLondon City
Dec 11
LCY7:50 amLondon City
24h 05m
2 stops
ONT11:55 pmOntario
$746
Find similar
Iberia
Jan 31
ONT10:58 amOntario
43h 37m
2 stops
LCY2:35 pmLondon City
Feb 8
LCY7:15 pmLondon City
35h 34m
2 stops
ONT10:49 pmOntario
$941
Find similar

KLM flights from Ontario to London City Airport

Our best KLM deals on Ontario to London City Airport flight tickets
KLM
Jan 1
ONT7:05 amOntario
16h 10m
2 stops
LCY7:15 amLondon City
Jan 30
LCY10:00 amLondon City
19h 14m
2 stops
ONT9:14 pmOntario
$1,239
Find similar
KLM
Jan 1
ONT7:05 amOntario
16h 10m
2 stops
LCY7:15 amLondon City
Jan 31
LCY10:00 amLondon City
19h 14m
2 stops
ONT9:14 pmOntario
$1,554
Find similar
KLM
Nov 20
ONT7:05 amOntario
16h 10m
2 stops
LCY7:15 amLondon City
Dec 10
LCY7:45 amLondon City
19h 54m
2 stops
ONT7:39 pmOntario
$1,776
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 octubre 16, 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

mar. 2/17

11:05 am-2:05 pm

2 stops19h 00m

London City

vie. 2/27

7:50 am-9:57 pm

2 stops22h 07m

$646

OntarioLondon

ONT - LCY

ONTLCY

Ontario

mar. 11/18

7:00 am-12:50 pm

2 stops21h 50m

London City

mar. 11/25

9:50 am-10:51 pm

2 stops21h 01m

$693

OntarioLondon

ONT - LCY

ONTLCY

Ontario

mar. 11/18

6:00 am-4:40 pm

2 stops26h 40m

London City

mar. 11/25

9:50 am-10:51 pm

2 stops21h 01m

$704

OntarioLondon

ONT - LCY

ONTLCY

Ontario

mar. 11/18

7:00 am-12:50 pm

2 stops21h 50m

London City

lun. 11/24

5:15 pm-8:44 pm

2 stops35h 29m

$713

OntarioLondon

ONT - LCY

ONTLCY

Ontario

mié. 12/3

10:47 am-2:05 pm

2 stops19h 18m

London City

jue. 12/11

7:50 am-11:55 pm

2 stops24h 05m

$746

OntarioLondon

ONT - LCY

ONTLCY

Ontario

sáb. 11/29

6:00 am-4:40 pm

2 stops26h 40m

London City

sáb. 12/6

12:20 pm-8:42 pm

3 stops40h 22m

$832

OntarioLondon

ONT - LCY

ONTLCY

Ontario

sáb. 11/1

7:00 am-12:40 pm

2 stops22h 40m

London City

lun. 11/10

7:10 pm-6:36 pm

2 stops31h 26m

$833

OntarioLondon

ONT - LCY

ONTLCY

Ontario

jue. 1/1

7:05 am-7:15 am

2 stops16h 10m

London City

vie. 1/30

10:00 am-9:14 pm

2 stops19h 14m

$1,239

OntarioLondon

ONT - LCY

ONTLCY

Ontario

jue. 1/1

7:05 am-7:15 am

2 stops16h 10m

London City

sáb. 1/31

10:00 am-9:14 pm

2 stops19h 14m

$1,554

OntarioLondon

ONT - LCY

ONTLCY

Ontario

jue. 11/20

7:05 am-7:15 am

2 stops16h 10m

London City

mié. 12/10

7:45 am-7:39 pm

2 stops19h 54m

$1,776

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 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

Direct flights

None
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?

    The straight-line distance from Ontario to London City is 5422.9 mi. Flights usually cover this in 16h 10m, 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
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Guildford
Dartford
Crawley
Hayes
Brentwood
Chelmsford
Colchester
Folkestone
Romford
Ilford
Cobham
Wembley
Stansted
Watford

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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