Find flights
When to book
FAQs

Cheap flights from Ontario to London Gatwick Airport from £224

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
20 Nov — 27 Nov1
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 21 October 2025.

Round-trip from

£580

One-way from

£224

Popular in

December

Cheapest in

September

Average price

£460
American Airlines
  • American Airlines
  • 8/11-21/11
  • 4 total stops
  • 68h 17m total
  • Ontario to London
Search Deals
11/12
  • 11/12
  • 3 total stops
  • 43h 45m 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).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 21 October 2025.

Sat 8/1122:34ONT - LGW
2 stops26h 26mAmerican Airlines
Fri 21/1111:20LGW - ONT
2 stops41h 51mAmerican Airlines
Deal found 19/10£580
Tue 11/1107:00ONT - LGW
2 stops28h 00mIberia
Wed 3/1219:40LGW - ONT
2 stops34h 39mIberia
Deal found 19/10£676
Wed 3/1206:00ONT - LGW
2 stops20h 55mMultiple Airlines
Wed 10/1211:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 18/10£708
Tue 11/1107:00ONT - LGW
2 stops28h 00mIberia
Sat 6/1211:45LGW - ONT
2 stops42h 30mIberia
Deal found 19/10£711
Tue 11/1111:15ONT - LGW
2 stops15h 40mMultiple Airlines
Wed 19/1111:55LGW - ONT
2 stops20h 01mMultiple Airlines
Deal found 19/10£729
Tue 2/1211:15ONT - LGW
2 stops15h 40mMultiple Airlines
Tue 16/1211:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 19/10£741
Thu 4/1211:15ONT - LGW
2 stops15h 40mMultiple Airlines
Thu 11/1211:55LGW - ONT
2 stops19h 34mMultiple Airlines
Deal found 20/10£745
Mon 24/1110:47ONT - LGW
2 stops40h 03mIberia
Wed 3/1219:40LGW - ONT
2 stops24h 13mIberia
Deal found 19/10£753
Sun 16/1108:30ONT - LGW
2 stops18h 25mMultiple Airlines
Sun 23/1111:55LGW - ONT
2 stops20h 00mMultiple Airlines
Deal found 20/10£767
Tue 11/1111:15ONT - LGW
2 stops15h 40mMultiple Airlines
Thu 4/1211:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 19/10£770
Thu 6/1107:00ONT - LGW
2 stops19h 50mIberia
Fri 14/1119:40LGW - ONT
2 stops24h 14mIberia
Deal found 20/10£774
Tue 2/1207:10ONT - LGW
2 stops19h 45mMultiple Airlines
Tue 9/1211:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 18/10£794

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 21 October 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 26/2

10:38-07:30

2 stops36h 52m

London Gatwick

Mon 2/3

12:30-09:31

2 stops29h 01m

£681

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 3/12

06:00-10:55

2 stops20h 55m

London Gatwick

Wed 10/12

11:55-22:05

2 stops18h 10m

£708

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 4/3

06:00-10:55

2 stops20h 55m

London Gatwick

Tue 17/3

11:55-22:37

2 stops17h 42m

£714

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 11/11

11:15-10:55

2 stops15h 40m

London Gatwick

Wed 19/11

11:55-23:56

2 stops20h 01m

£729

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 2/12

11:15-10:55

2 stops15h 40m

London Gatwick

Tue 16/12

11:55-22:05

2 stops18h 10m

£741

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 4/12

11:15-10:55

2 stops15h 40m

London Gatwick

Thu 11/12

11:55-23:29

2 stops19h 34m

£745

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 4/11

10:59-10:55

2 stops15h 56m

London Gatwick

Mon 23/2

11:55-22:37

2 stops18h 42m

£753

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 24/11

10:47-10:50

2 stops40h 03m

London Gatwick

Wed 3/12

19:40-11:53

2 stops24h 13m

£753

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 16/11

08:30-10:55

2 stops18h 25m

London Gatwick

Sun 23/11

11:55-23:55

2 stops20h 00m

£766

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 17/11

11:15-10:55

2 stops15h 40m

London Gatwick

Sun 23/11

11:55-23:59

2 stops20h 04m

£767

Flights are sorted by cheapest return flights first.

Deals found on 20/10

Showing 1-10 of 21 results
1
2
3

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 £187). Flying from Ontario to London Gatwick Airport in February is currently the most expensive (average of £448). 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 36h 52m. 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 £187). Flying from Ontario to London Gatwick Airport in February is currently the most expensive (average of £448). 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
Wembley
Deal
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Romford
Ipswich
Brentford
Dartford
Guildford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Gatwick

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Gatwick flights
Los Angeles to London City flights
San Francisco to Gatwick flights
San Francisco to London City flights
San Diego to Heathrow flights
Los Angeles to Stansted flights
Los Angeles to Luton flights
Ontario to Heathrow flights
San Francisco to Stansted flights
San Francisco to Luton flights
Santa Ana to Heathrow flights
Las Vegas to Heathrow flights
San Diego to Gatwick flights
San Jose to Heathrow flights
Las Vegas to Gatwick flights
Las Vegas to London City flights
Sacramento to Heathrow flights
Oakland to Heathrow flights
San Diego to Stansted flights
San Jose to Gatwick flights
Burbank to Heathrow flights
Palm Springs to Heathrow flights
Sacramento to Gatwick flights
Santa Ana to Gatwick flights
Oakland to Gatwick flights
Reno to Heathrow flights
Reno to Gatwick flights
Los Angeles to Southend flights
Las Vegas to Luton flights
Santa Barbara to Heathrow flights
Medford to Heathrow flights
Burbank to Gatwick flights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.