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London City

$428+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LCY
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheap 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 November 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$670
(United Airlines)

One-way from

$428
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$765
Provider with most accurate pricing for Ontario-London City flight deals.
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Provider most trusted by Cheapflights users for Ontario-London City flights.
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From Ontario to London City
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One-way flight from Ontario to London City
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Highest demand for flights based on searches. 13% potential increase in price ($116 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:05 amONT - LCY
2 stops28h 30mMultiple Airlines
Sat 1/1012:15 pmLCY - ONT
3 stops41h 43mMultiple Airlines
Deal found 11/11$766
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:05 amONT - LCY
3 stops22h 35mMultiple Airlines
Mon 1/129:50 amLCY - ONT
2 stops21h 03mMultiple Airlines
Deal found 11/12$1,045
This Iberia deal was found by Cheapflights users on 11/11. 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 12/110:47 amONT - LCY
2 stops19h 48mIberia
Thu 12/47:50 amLCY - ONT
2 stops24h 05mIberia
Deal found 11/11$1,136
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:00 amONT - LCY
2 stops18h 15mMultiple Airlines
Tue 11/189:50 amLCY - ONT
2 stops21h 01mMultiple Airlines
Deal found 11/11$1,161
This British Airways deal was found by Cheapflights users on 11/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:47 amONT - LCY
2 stops19h 48mBritish Airways
Thu 1/87:15 pmLCY - ONT
2 stops51h 03mBritish Airways
Deal found 11/13$1,187
This British Airways deal was found by Cheapflights users on 11/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:04 pmONT - LCY
2 stops39h 31mBritish Airways
Thu 1/87:15 pmLCY - ONT
2 stops51h 03mBritish Airways
Deal found 11/13$1,195
This United Airlines deal was found by Cheapflights users on 11/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amONT - LCY
2 stops26h 40mMultiple Airlines
Thu 12/189:40 amLCY - ONT
2 stops32h 21mMultiple Airlines
Deal found 11/13$1,228
This British Airways deal was found by Cheapflights users on 11/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amONT - LCY
2 stops24h 05mBritish Airways
Thu 1/87:15 pmLCY - ONT
2 stops51h 03mBritish Airways
Deal found 11/13$1,232
This British Airways deal was found by Cheapflights users on 11/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:47 amONT - LCY
2 stops19h 48mBritish Airways
Wed 1/77:15 pmLCY - ONT
2 stops35h 33mBritish Airways
Deal found 11/13$1,284
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:05 amONT - LCY
3 stops22h 35mMultiple Airlines
Fri 12/199:55 amLCY - ONT
2 stops20h 46mMultiple Airlines
Deal found 11/12$1,395
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:05 amONT - LCY
3 stops22h 35mMultiple Airlines
Wed 11/269:50 amLCY - ONT
2 stops21h 01mMultiple Airlines
Deal found 11/11$1,413

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 November 13, 2025.
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

Wed 1/14

5:05 am-12:55 pm

3 stops23h 50m

London City

Thu 1/22

9:40 am-11:18 am

3 stops33h 38m

$670

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 4/12

1:00 pm-4:40 pm

2 stops19h 40m

London City

Thu 4/23

10:00 am-10:40 pm

2 stops20h 40m

$703

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 4/12

7:00 am-6:35 pm

2 stops27h 35m

London City

Thu 4/23

9:15 am-11:06 pm

3 stops21h 51m

$730

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Tue 12/30

5:05 am-5:35 pm

2 stops28h 30m

London City

Sat 1/10

12:15 pm-9:58 pm

3 stops41h 43m

$766

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 4/9

7:00 am-12:30 pm

2 stops21h 30m

London City

Tue 4/21

7:20 pm-10:26 pm

2 stops35h 06m

$804

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Fri 12/12

5:05 am-11:40 am

3 stops22h 35m

London City

Mon 1/12

9:50 am-10:53 pm

2 stops21h 03m

$1,045

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 12/1

10:47 am-2:35 pm

2 stops19h 48m

London City

Thu 12/4

7:50 am-11:55 pm

2 stops24h 05m

$1,136

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Sun 12/14

10:47 am-2:35 pm

2 stops19h 48m

London City

Thu 1/8

7:15 pm-2:18 pm

2 stops51h 03m

$1,187

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 12/11

6:00 am-4:40 pm

2 stops26h 40m

London City

Thu 12/18

9:40 am-10:01 am

2 stops32h 21m

$1,228

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 12/11

6:00 am-2:05 pm

2 stops24h 05m

London City

Thu 1/8

7:15 pm-2:18 pm

2 stops51h 03m

$1,232

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 21 results
1
2
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  • Most accurate provider: When it comes to deals on Ontario-London City Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-London City Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-London City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-London City Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to London City Airport

What is the cheapest month to book a flight from Ontario to London City Airport?

Currently, April is the cheapest month in which you can book a flight from Ontario to London City Airport (average of $559). Flying from Ontario to London City Airport in August is currently the most expensive (average of $1,005). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 $703, Delta can have you in London City Airport from Ontario in 19h 40m. Ontario and London City Airport are separated by a distance of 5422 mi.

  • What are the cheapest airlines to fly from Ontario to London City Airport one-way?

    For one-way options, check prices for Iberia. According to our data, you can fly for as low as $432. Users have also found prices from $442 and $477 on United Airlines and British Airways, respectively.

  • 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.

  • What is the cheapest month to book a flight from Ontario to London City Airport?

    Currently, April is the cheapest month in which you can book a flight from Ontario to London City Airport (average of $559). Flying from Ontario to London City Airport in August is currently the most expensive (average of $1,005). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

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