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Cheap flights from Ontario to London Gatwick Airport from £142

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Gatwick (LGW). 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 7 November 2025.

Round-trip from

£653

One-way from

£142

Popular in

December

Cheapest in

September

Average price

£584
Iberia
  • Iberia
  • 8/1-15/4
  • 4 total stops
  • 40h 55m total
  • Ontario to London
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13/1
  • 13/1
  • 2 total stops
  • 34h 29m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Ontario to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Gatwick
Explore the most affordable flight options available from Ontario to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Sat 29/1106:10ONT - LGW
2 stops20h 40mIberia
Mon 15/1219:40LGW - ONT
2 stops22h 14mIberia
Deal found 5/11£677
Wed 12/1106:00ONT - LGW
2 stops20h 55mMultiple Airlines
Wed 19/1111:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 4/11£722
Wed 3/1211:15ONT - LGW
2 stops15h 40mMultiple Airlines
Wed 10/1211:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 5/11£737
Thu 27/1109:25ONT - LGW
2 stops17h 30mMultiple Airlines
Thu 11/1211:55LGW - ONT
2 stops19h 34mMultiple Airlines
Deal found 5/11£749
Sun 9/1106:00ONT - LGW
2 stops20h 55mMultiple Airlines
Mon 17/1111:55LGW - ONT
2 stops20h 01mMultiple Airlines
Deal found 5/11£823
Sun 7/1210:50ONT - LGW
2 stops16h 05mMultiple Airlines
Sun 14/1211:55LGW - ONT
2 stops19h 34mMultiple Airlines
Deal found 5/11£846
Wed 19/1106:00ONT - LGW
2 stops20h 55mMultiple Airlines
Wed 26/1111:55LGW - ONT
2 stops20h 00mMultiple Airlines
Deal found 5/11£850
Sat 6/1207:00ONT - LGW
2 stops19h 50mIberia
Sat 13/1211:45LGW - ONT
2 stops32h 08mIberia
Deal found 6/11£886
Mon 10/1110:50ONT - LGW
2 stops16h 05mMultiple Airlines
Sun 23/1111:55LGW - ONT
2 stops20h 04mMultiple Airlines
Deal found 5/11£921

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to Gatwick 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 7 November 2025.
Use the filters below to find and compare flights from Ontario to London Gatwick Airport that are best for you.

Fly from

Ontario

Fly to

Gatwick

Route

Depart

Return

Price

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 8/1

06:00-10:50

2 stops20h 50m

London Gatwick

Wed 15/4

11:35-23:40

2 stops20h 05m

£653

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sat 14/2

10:59-18:55

2 stops23h 56m

London Gatwick

Sat 21/2

11:45-13:57

2 stops34h 12m

£665

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sat 29/11

06:10-10:50

2 stops20h 40m

London Gatwick

Mon 15/12

19:40-09:54

2 stops22h 14m

£677

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 4/3

23:59-09:00

2 stops25h 01m

London Gatwick

Sun 8/3

12:30-17:49

2 stops36h 19m

£684

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 3/12

11:15-10:55

2 stops15h 40m

London Gatwick

Wed 10/12

11:55-22:05

2 stops18h 10m

£737

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 27/11

09:25-10:55

2 stops17h 30m

London Gatwick

Thu 11/12

11:55-23:29

2 stops19h 34m

£749

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 14/1

08:55-10:55

2 stops18h 00m

London Gatwick

Sun 18/1

11:55-23:56

2 stops20h 01m

£760

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 4/3

06:00-10:55

2 stops20h 55m

London Gatwick

Sun 8/3

11:55-22:37

2 stops17h 42m

£768

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 13/1

11:53-10:55

3 stops39h 02m

£316

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 1/5

06:00-17:50

2 stops27h 50m

£353

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 19 results
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2

Best time to book a flight from Ontario to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Ontario 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.

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of £192). Flying from Ontario to London Gatwick Airport in February is currently the most expensive (average of £459). 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 Gatwick. 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 Gatwick?

    Most people fly from Ontario (ONT) if they book a flight from Ontario to London Gatwick. On average, Ontario has 0 outbound flights to London Gatwick per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    Iberia can get you from Ontario to London Gatwick Airport in just under 20h 50m. Your travel time can differ by up to . There are 5430 mi between Ontario and London Gatwick Airport.

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

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

  • How can I find direct flights from Ontario to Gatwick?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Gatwick 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 Gatwick Airport?

    Currently, October is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of £192). Flying from Ontario to London Gatwick Airport in February is currently the most expensive (average of £459). 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

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Crawley
Brentford
Romford
Chichester
Ipswich
Bedford
Eastbourne

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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 Ontario to Gatwick?

Cheapflights makes it easy to find Ontario to Gatwick flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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 Ontario to Gatwick.

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

Certainly. Search results for flights to Gatwick from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Ontario to Gatwick flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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