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Cheap flights from Ontario to London Gatwick Airport from £177

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

£598

One-way from

£177

Popular in

December

Cheapest in

September

Average price

£444
American Airlines
  • American Airlines
  • 19/10-26/10
  • 4 total stops
  • 49h 58m total
  • Ontario to London
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16/10
  • 16/10
  • 2 total stops
  • 27h 26m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£54 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Gatwick

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 16 September 2025.

Sun 19/1006:15ONT - LGW
2 stops18h 20mAmerican Airlines
Sun 26/1011:20LGW - ONT
2 stops31h 38mAmerican Airlines
Deal found 14/9£598
Wed 22/1010:40ONT - LGW
2 stops20h 00mMultiple Airlines
Wed 29/1011:55LGW - ONT
2 stops17h 50mMultiple Airlines
Deal found 16/9£714
Mon 27/1009:00ONT - LGW
2 stops18h 55mMultiple Airlines
Fri 7/1111:55LGW - ONT
2 stops19h 37mMultiple Airlines
Deal found 16/9£715
Wed 10/1211:15ONT - LGW
2 stops15h 40mMultiple Airlines
Thu 18/1211:55LGW - ONT
2 stops20h 10mMultiple Airlines
Deal found 15/9£784
Mon 1/1209:30ONT - LGW
2 stops17h 25mMultiple Airlines
Tue 9/1211:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 14/9£790
Tue 23/906:00ONT - LGW
2 stops26h 15mMultiple Airlines
Tue 7/1005:30LGW - ONT
2 stops26h 33mMultiple Airlines
Deal found 13/9£859
Thu 30/1010:59ONT - LGW
2 stops16h 56mMultiple Airlines
Thu 6/1111:55LGW - ONT
2 stops20h 10mMultiple Airlines
Deal found 15/9£890
Mon 22/1209:30ONT - LGW
2 stops17h 25mMultiple Airlines
Sat 10/111:55LGW - ONT
2 stops18h 42mMultiple Airlines
Deal found 15/9£943
Tue 14/1012:47ONT - LGW
2 stops23h 13mIberia
Tue 21/1011:40LGW - ONT
2 stops19h 02mIberia
Deal found 14/9£977
Mon 22/1209:30ONT - LGW
2 stops17h 25mMultiple Airlines
Mon 5/111:55LGW - ONT
2 stops20h 19mMultiple Airlines
Deal found 14/9£1,058
Thu 20/1110:59ONT - LGW
2 stops15h 56mMultiple Airlines
Tue 2/1211:55LGW - ONT
2 stops31h 24mMultiple Airlines
Deal found 14/9£1,083

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 16 September 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

Sun 19/10

06:15-08:35

2 stops18h 20m

London Gatwick

Sun 26/10

11:20-11:58

2 stops31h 38m

£598

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 4/3

06:47-09:00

2 stops18h 13m

London Gatwick

Sun 8/3

12:30-17:49

2 stops36h 19m

£599

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 29/10

10:40-10:55

2 stops17h 15m

London Gatwick

Wed 5/11

11:55-22:05

2 stops18h 10m

£714

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 27/10

09:00-10:55

2 stops18h 55m

London Gatwick

Fri 7/11

11:55-23:32

2 stops19h 37m

£715

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 9/1

06:30-10:55

2 stops20h 25m

London Gatwick

Sun 18/1

11:55-22:37

2 stops18h 42m

£783

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 10/12

11:15-10:55

2 stops15h 40m

London Gatwick

Thu 18/12

11:55-00:05

2 stops20h 10m

£784

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 1/12

09:30-10:55

2 stops17h 25m

London Gatwick

Tue 9/12

11:55-22:05

2 stops18h 10m

£790

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 13/2

06:00-10:55

2 stops20h 55m

London Gatwick

Sun 22/2

11:55-23:35

2 stops19h 40m

£810

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 8/2

06:37-10:50

2 stops20h 13m

London Gatwick

Sat 14/2

19:40-13:44

2 stops26h 04m

£840

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 9/11

06:53-06:00

2 stops39h 07m

£192

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 19 results
1
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, April is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of £102). Flying from Ontario to London Gatwick Airport in July is currently the most expensive (average of £142). 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?

    American Airlines can get you from Ontario to London Gatwick Airport in just under 18h 20m. 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, April is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of £102). Flying from Ontario to London Gatwick Airport in July is currently the most expensive (average of £142). 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
Hounslow
Slough
Gatwick
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Dartford
Guildford
Brentford
Bishop's Stortford
Romford

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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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