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

For as low as $667, Delta can have you in London City Airport from Ontario in 17h 40m. Ontario and London City Airport are separated by a distance of 5422 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London City Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London City Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London City Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from ONT to LCY?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to London City Airport as you normally would.

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.

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.

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.

$393+ Flights from Ontario to London City Airport

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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 December 9, 2025.

Mon 12/810:47 amONT - LCY

2 stops19h 48mIberia

Mon 12/157:15 pmLCY - ONT

2 stops35h 13mIberia

Deal found 12/7

$1,716

Tue 12/97:00 amONT - LCY

2 stops17h 50mIberia

Wed 12/177:50 amLCY - ONT

2 stops22h 38mIberia

Deal found 12/7

$2,066

Tue 12/2310:50 amONT - LCY

2 stops19h 15mIberia

Wed 12/317:15 pmLCY - ONT

2 stops24h 38mIberia

Deal found 12/8

$3,981

Mon 12/2210:50 amONT - LCY

2 stops19h 45mIberia

Fri 1/27:50 amLCY - ONT

2 stops22h 24mIberia

Deal found 12/8

$4,206

Wed 12/3110:47 amONT - LCY

2 stops19h 48mIberia

Fri 1/97:15 pmLCY - ONT

2 stops27h 03mIberia

Deal found 12/7

$6,123

Mon 12/157:05 amONT - LCY

2 stops17h 05mDelta

Tue 12/3010:00 amLCY - ONT

2 stops21h 23mDelta

Deal found 12/8

$7,402

Best flights from Ontario to London City
Discover carefully curated flight deals from Ontario to London City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 9, 2025.

Wed 1/2112:41 pmONT - LCY

2 stops19h 54mDelta

Wed 1/2810:00 amLCY - ONT

2 stops19h 05mDelta

Deal found 12/7

$663

Thu 2/197:10 amONT - LCY

2 stops17h 40mIberia

Mon 2/237:15 pmLCY - ONT

2 stops22h 52mIberia

Deal found 12/7

$667

Thu 1/2211:53 amONT - LCY

2 stops21h 47mMultiple Airlines

Thu 1/299:40 amLCY - ONT

2 stops22h 16mMultiple Airlines

Deal found 12/8

$1,309

Thu 3/57:10 amONT - LCY

2 stops17h 40mIberia

Thu 3/127:50 amLCY - ONT

2 stops21h 40mIberia

Deal found 12/7

$881

Wed 6/35:05 pmONT - LCY

2 stops15h 35mDelta

Mon 6/88:25 amLCY - ONT

2 stops21h 44mDelta

Deal found 12/8

$1,315

Fri 1/25:10 pmONT - LCY

2 stops55h 40mDelta

Sun 2/11:45 pmLCY - ONT

2 stops34h 30mDelta

Deal found 12/8

$1,779

Fri 1/27:05 amONT - LCY

2 stops17h 05mDelta

Thu 1/87:45 amLCY - ONT

2 stops21h 20mDelta

Deal found 12/9

$3,117

Tue 12/2310:50 amONT - LCY

2 stops19h 15mIberia

Wed 12/317:15 pmLCY - ONT

2 stops24h 38mIberia

Deal found 12/8

$3,981

Mon 12/2210:50 amONT - LCY

2 stops19h 45mIberia

Fri 1/27:50 amLCY - ONT

2 stops22h 24mIberia

Deal found 12/8

$4,206

Last-minute flights from Ontario to London City
Discover last-minute flight deals from Ontario to London City. Data last updated December 9, 2025 and is based on user searches.

Mon 12/810:47 amONT - LCY

2 stops19h 48mIberia

Mon 12/157:15 pmLCY - ONT

2 stops35h 13mIberia

Deal found 12/7

$1,716

Tue 12/97:00 amONT - LCY

2 stops17h 50mIberia

Wed 12/177:50 amLCY - ONT

2 stops22h 38mIberia

Deal found 12/7

$2,066

Mon 12/157:05 amONT - LCY

2 stops17h 45mDelta

Tue 12/3010:00 amLCY - ONT

2 stops21h 23mDelta

Deal found 12/6

$7,402

Mon 12/2210:50 amONT - LCY

2 stops19h 45mIberia

Fri 1/27:50 amLCY - ONT

2 stops22h 24mIberia

Deal found 12/8

$4,206

Tue 12/2310:50 amONT - LCY

2 stops19h 15mIberia

Wed 12/317:15 pmLCY - ONT

2 stops24h 38mIberia

Deal found 12/8

$3,981

Wed 12/3110:47 amONT - LCY

2 stops19h 48mIberia

Fri 1/97:15 pmLCY - ONT

2 stops27h 03mIberia

Deal found 12/7

$6,123

Fri 1/25:10 pmONT - LCY

2 stops55h 40mDelta

Sun 2/11:45 pmLCY - ONT

2 stops34h 30mDelta

Deal found 12/8

$1,779

Fri 1/27:05 amONT - LCY

2 stops17h 05mDelta

Thu 1/87:45 amLCY - ONT

2 stops21h 20mDelta

Deal found 12/9

$3,117

Mon 1/512:41 pmONT - LCY

2 stops19h 54mDelta

Tue 1/208:40 amLCY - ONT

2 stops20h 25mDelta

Deal found 12/6

$4,952

Wed 1/2112:41 pmONT - LCY

2 stops19h 54mDelta

Wed 1/2810:00 amLCY - ONT

2 stops19h 05mDelta

Deal found 12/7

$663

Thu 1/2211:53 amONT - LCY

2 stops21h 47mMultiple Airlines

Thu 1/299:40 amLCY - ONT

2 stops22h 16mMultiple Airlines

Deal found 12/8

$1,309

One-way flights from Ontario to London City
Search for one-way flight options from Ontario to London City. Find affordable one-way fares based on user searches. Data last updated December 9, 2025.

Wed 1/77:00 amONT - LCY

3 stops41h 45mMultiple Airlines

Deal found 12/8

$393

Wed 1/217:30 amONT - LCY

2 stops25h 05mVirgin Atlantic

Deal found 12/7

$420

Thu 1/226:00 amONT - LCY

3 stops45h 40mMultiple Airlines

Deal found 12/7

$425

Thu 1/2210:58 amONT - LCY

2 stops19h 07mIberia

Deal found 12/7

$488

Sun 1/410:12 pmONT - LCY

2 stops33h 58mMultiple Airlines

Deal found 12/8

$707

Mon 12/297:10 amONT - LCY

2 stops23h 25mIberia

Deal found 12/8

$937

Mon 12/1510:47 amONT - LCY

2 stops19h 48mIberia

Deal found 12/7

$1,177

Tue 12/237:10 amONT - LCY

2 stops22h 55mIberia

Deal found 12/8

$1,345

Sun 12/2810:50 amONT - LCY

2 stops19h 45mIberia

Deal found 12/8

$1,377

Mon 12/1510:47 amONT - LCY

2 stops19h 48mBritish Airways

Deal found 12/8

$1,413

Find flight deals from Ontario to London City

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$663 (Delta)
One-way from	$393 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$1,027

Provider with most accurate pricing for Ontario-London City flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-London City 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. 12% potential increase in price ($100 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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 1/21

12:41 pm-4:35 pm

2 stops19h 54m

London City

Wed 1/28

10:00 am-9:05 pm

2 stops19h 05m

$663

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 2/19

7:10 am-8:50 am

2 stops17h 40m

London City

Mon 2/23

7:15 pm-10:07 am

2 stops22h 52m

$667

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 3/5

7:10 am-8:50 am

2 stops17h 40m

London City

Thu 3/12

7:50 am-10:30 pm

2 stops21h 40m

$881

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Thu 1/22

11:53 am-5:40 pm

2 stops21h 47m

London City

Thu 1/29

9:40 am-11:56 pm

2 stops22h 16m

$1,309

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 6/3

5:05 pm-4:40 pm

2 stops15h 35m

London City

Mon 6/8

8:25 am-10:09 pm

2 stops21h 44m

$1,315

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Fri 1/2

5:10 pm-8:50 am

2 stops55h 40m

London City

Sun 2/1

1:45 pm-4:15 pm

2 stops34h 30m

$1,779

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Fri 1/2

7:05 am-8:10 am

2 stops17h 05m

London City

Thu 1/8

7:45 am-9:05 pm

2 stops21h 20m

$3,117

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Tue 12/23

10:50 am-2:05 pm

2 stops19h 15m

London City

Wed 12/31

7:15 pm-11:53 am

2 stops24h 38m

$3,981

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Mon 12/22

10:50 am-2:35 pm

2 stops19h 45m

London City

Fri 1/2

7:50 am-10:14 pm

2 stops22h 24m

$4,206

OntarioLondon

ONT - LCY

ONTLCY

Ontario

Wed 1/7

7:00 am-8:45 am

3 stops41h 45m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 19 results

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.

Related info for your journey

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 $667, Delta can have you in London City Airport from Ontario in 17h 40m. 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

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$393+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to London City with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheap flight deals from Ontario to London City

Cheapest flights from Ontario to London CityExplore 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 December 9, 2025.

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 December 9, 2025.

Find flight deals from Ontario to London City

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to London City Airport that are best for you.

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.

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?

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

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

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

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

Traveling to a place near London City Airport?

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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 December 9, 2025.