HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London City

$430+ Cheap flights from Ontario (ONT) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LCY
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to London City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to London City

Cheapest flights from Ontario to London City
Explore the most affordable flight options available from Ontario to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1612:57 pm
ONT
-
LCY
2 stops20h 38m
Delta
Mon 4/610:00 am
LCY
-
ONT
2 stops20h 34m
Delta
Deal found 2/3$885
This Gurufare deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:00 pm
ONT
-
LCY
2 stops14h 40m
Air Europa
Mon 10/198:15 pm
LCY
-
ONT
2 stops27h 57m
Air Europa
Deal found 2/3$940
This Gurufare deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 am
ONT
-
LCY
3 stops17h 55m
Multiple Airlines
Mon 10/198:25 am
LCY
-
ONT
2 stops21h 49m
Multiple Airlines
Deal found 2/3$968
This KLM deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 am
ONT
-
LCY
2 stops20h 40m
KLM
Tue 10/2010:00 am
LCY
-
ONT
2 stops20h 43m
KLM
Deal found 2/3$985
This Iberia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:08 pm
ONT
-
LCY
2 stops18h 22m
Iberia
Mon 5/411:00 am
LCY
-
ONT
2 stops20h 46m
Iberia
Deal found 2/3$1,026
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
ONT
-
LCY
2 stops18h 30m
Delta
Tue 5/59:20 am
LCY
-
ONT
2 stops21h 17m
Delta
Deal found 2/3$1,032
This Iberia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:08 pm
ONT
-
LCY
2 stops18h 22m
Iberia
Mon 4/2011:00 am
LCY
-
ONT
2 stops20h 46m
Iberia
Deal found 2/1$1,044
This Iberia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1610:56 am
ONT
-
LCY
2 stops19h 39m
Iberia
Thu 2/197:50 am
LCY
-
ONT
2 stops22h 39m
Iberia
Deal found 2/2$1,146
This KLM deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:05 pm
ONT
-
LCY
2 stops17h 25m
KLM
Wed 4/229:20 am
LCY
-
ONT
2 stops21h 17m
KLM
Deal found 2/3$1,156
This Travelocity deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:56 pm
ONT
-
LCY
2 stops33h 39m
Multiple Airlines
Fri 10/26:45 am
LCY
-
ONT
2 stops22h 44m
Multiple Airlines
Deal found 2/2$1,157

Find flight deals from Ontario to London City

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$885
(Delta)

One-way from

$430
(Delta)

Popular in

December

Cheapest in

September

Average price

$654
Provider with most accurate pricing for Los Angeles-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-London (LON) flights.
Search Deals
From Ontario to London City
Search Deals
One-way flight from Ontario to London City
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to London City 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, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Ontario to London City Airport that are best for you.

Fly from

Ontario

Fly to

London City

Route

Depart

Return

Price

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 3/16

12:57 pm-4:35 pm

2 stops20h 38m

London City

Mon 4/6

10:00 am-10:34 pm

2 stops20h 34m

$885

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 4/23

2:08 pm-4:30 pm

2 stops18h 22m

London City

Mon 5/4

11:00 am-11:46 pm

2 stops20h 46m

$1,026

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 4/15

7:00 am-9:30 am

2 stops18h 30m

London City

Tue 5/5

10:00 am-10:37 pm

2 stops20h 37m

$1,032

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 4/15

2:08 pm-4:30 pm

2 stops18h 22m

London City

Mon 4/20

11:00 am-11:46 pm

2 stops20h 46m

$1,044

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 2/16

10:56 am-2:35 pm

2 stops19h 39m

London City

Thu 2/19

7:50 am-10:29 pm

2 stops22h 39m

$1,146

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 4/19

5:05 pm-6:30 pm

2 stops17h 25m

London City

Wed 4/22

9:20 am-10:37 pm

2 stops21h 17m

$1,156

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Tue 4/28

7:29 pm-8:40 am

3 stops29h 11m

$455

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 2/16

1:15 pm-4:35 pm

2 stops19h 20m

$471

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 2/16

1:18 pm-10:55 am

3 stops37h 37m

$486

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Tue 3/24

6:00 am-8:50 am

2 stops19h 50m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 16 results
1
2

Best time to book a flight from Ontario to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Ontario to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to London City?

    For a flight from Ontario to London City, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to London City per day. 0 airlines have flights to London City from Ontario on a regular basis.

  • How long is the flight from Ontario to London City Airport?

    For as low as $1,026, Delta can have you in London City Airport from Ontario in 18h 22m. Ontario and London City Airport are separated by a distance of 5422 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Ontario to London City that include hotel bookings?

    Yes. In addition to deals on Ontario to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to London City.

  • Can I find deals for business class flights from Ontario to London City?

    Yes. Cheapflights offers flight deals from Ontario to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to London City

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Gatwick flights
San Francisco to Gatwick flights
Los Angeles to Stansted flights
Los Angeles to London City flights
San Francisco to London City flights
San Francisco to Stansted flights
San Diego to Heathrow flights
Las Vegas to Heathrow flights
Ontario to Heathrow flights
Los Angeles to Luton flights
San Francisco to Luton flights
Santa Ana to Heathrow flights
San Diego to Gatwick flights
Las Vegas to Gatwick flights
San Jose to Heathrow flights
Las Vegas to London City flights
San Diego to London City flights
Sacramento to Heathrow flights
San Diego to Stansted flights
Las Vegas to Stansted flights
Sacramento to Gatwick flights
San Jose to Gatwick flights
Oakland to Heathrow flights
Reno to Heathrow flights
Sacramento to London City flights
Ontario to Gatwick flights
Burbank to Gatwick flights
Burbank to Heathrow flights
Palm Springs to Heathrow flights
Oakland to Gatwick flights
San Jose to London City flights
Reno to Gatwick flights
Reno to London City flights
Long Beach to Heathrow flights
Fresno to Heathrow flights
Sacramento to Stansted flights
Las Vegas to Luton flights
Santa Rosa to Heathrow flights
Palm Springs to London City flights
San Luis Obispo to Heathrow flights
Medford to Heathrow flights
Santa Ana to Gatwick flights
Fresno to London City flights
Monterey to Heathrow flights
Fresno to Gatwick flights
Los Angeles to Southend flights
Santa Barbara to Heathrow flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.