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Cheap flights from London City Airport to Ontario from £345

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — ONT
30 Mar — 6 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London City to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from London City to Ontario
Explore the most affordable flight options available from London City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 February 2026.

Wed 4/307:50
LCY
-
ONT
2 stops22h 59m
Iberia
Tue 10/307:00
ONT
-
LCY
2 stops18h 50m
Iberia
Deal found 24/2£478
Mon 16/307:45
LCY
-
ONT
2 stops20h 15m
Delta
Tue 31/311:59
ONT
-
LCY
2 stops20h 41m
Delta
Deal found 25/2£554
Mon 30/319:15
LCY
-
ONT
2 stops35h 34m
British Airways
Thu 9/406:00
ONT
-
LCY
2 stops25h 15m
British Airways
Deal found 26/2£571
Thu 5/307:50
LCY
-
ONT
2 stops22h 39m
British Airways
Wed 25/307:00
ONT
-
LCY
2 stops24h 05m
British Airways
Deal found 26/2£579
Thu 5/307:50
LCY
-
ONT
2 stops24h 09m
Iberia
Wed 18/310:56
ONT
-
LCY
2 stops20h 09m
Iberia
Deal found 24/2£590
Mon 13/409:50
LCY
-
ONT
2 stops21h 56m
Iberia
Mon 20/407:30
ONT
-
LCY
2 stops23h 45m
Iberia
Deal found 27/2£639
Wed 4/307:50
LCY
-
ONT
2 stops22h 59m
British Airways
Wed 25/307:00
ONT
-
LCY
2 stops24h 05m
British Airways
Deal found 25/2£690
Tue 14/410:00
LCY
-
ONT
2 stops19h 00m
Delta
Tue 21/407:00
ONT
-
LCY
2 stops18h 30m
Delta
Deal found 28/2£711
Wed 27/509:50
LCY
-
ONT
2 stops22h 09m
Iberia
Wed 17/610:22
ONT
-
LCY
2 stops20h 53m
Iberia
Deal found 25/2£767
Thu 28/509:50
LCY
-
ONT
2 stops22h 09m
Iberia
Thu 18/610:22
ONT
-
LCY
2 stops20h 03m
Iberia
Deal found 26/2£798
Wed 16/1207:50
LCY
-
ONT
2 stops22h 29m
Iberia
Wed 23/1210:50
ONT
-
LCY
2 stops19h 15m
Iberia
Deal found 25/2£849
Thu 4/609:50
LCY
-
ONT
2 stops22h 09m
Iberia
Mon 8/610:22
ONT
-
LCY
2 stops20h 53m
Iberia
Deal found 27/2£855

Find flight deals from London City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from London City (LCY) to Ontario (ONT). 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 28 February 2026.

Round-trip from

£554

One-way from

£345

Popular in

December

Cheapest in

September

Average price

£399
Delta
  • Delta
  • 16/3-31/3
  • 4 total stops
  • 40h 56m total
  • London to Ontario
Search Deals
Lufthansa
  • Lufthansa
  • 20/4
  • 2 total stops
  • 20h 35m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£23 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London City to Ontario 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 858,174 searches. Data last updated 28 February 2026.
Use the filters below to find and compare flights from London City Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonOntario

LCY - ONT

LCYONT

London City

Mon 16/3

07:45-21:00

2 stops20h 15m

Ontario

Tue 31/3

11:59-16:40

2 stops20h 41m

£554

LondonOntario

LCY - ONT

LCYONT

London City

Mon 30/3

19:15-22:49

2 stops35h 34m

Ontario

Thu 9/4

06:00-15:15

2 stops25h 15m

£571

LondonOntario

LCY - ONT

LCYONT

London City

Mon 13/4

09:50-23:46

2 stops21h 56m

Ontario

Mon 20/4

07:30-15:15

2 stops23h 45m

£639

LondonOntario

LCY - ONT

LCYONT

London City

Tue 14/4

10:00-21:00

2 stops19h 00m

Ontario

Tue 21/4

07:00-09:30

2 stops18h 30m

£711

LondonOntario

LCY - ONT

LCYONT

London City

Wed 27/5

09:50-23:59

2 stops22h 09m

Ontario

Wed 17/6

10:22-15:15

2 stops20h 53m

£767

LondonOntario

LCY - ONT

LCYONT

London City

Thu 28/5

09:50-23:59

2 stops22h 09m

Ontario

Thu 18/6

10:22-14:25

2 stops20h 03m

£798

LondonOntario

LCY - ONT

LCYONT

London City

Thu 4/6

09:50-23:59

2 stops22h 09m

Ontario

Mon 8/6

10:22-15:15

2 stops20h 53m

£855

LondonOntario

LCY - ONT

LCYONT

London City

Fri 10/4

06:45-23:59

2 stops25h 14m

Ontario

Fri 17/4

10:33-12:45

2 stops42h 12m

£1,208

LondonOntario

LCY - ONT

LCYONT

London City

Wed 25/3

19:15-13:48

2 stops25h 33m

Ontario

Wed 15/4

10:59-15:15

2 stops20h 16m

£1,934

LondonOntario

LCY - ONT

LCYONT

London City

Tue 5/5

18:30-21:58

2 stops35h 28m

£359

Flights are sorted by cheapest return flights first.

Deals found on 24/2

Showing 1-10 of 21 resultsSorted by cheapest first
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2
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Best time to book a flight from London City to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from London City with our price prediction graph.
Estimated return 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 London City to Ontario. 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 into for flights to Ontario from London City?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from London City. Booking flights from London City to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from London City from 0 different airlines.

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

    Delta, British Airways, and Iberia can get you from London City Airport to Ontario in just under 20h 15m. Your travel time can differ by up to 15h 19m. The distance between London City Airport and Ontario is about 5422 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London City to Ontario 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London City to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London City to Ontario?

Cheapflights helps you search for flights from London City to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London City to Ontario?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London City to Ontario.

Can Cheapflights find flights from London City to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London City to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London City to Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from London City today and book when prices fit your budget.

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