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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
7 Sep — 14 Sep1
1 adult

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 2 September 2025.

Round-trip from

£482

One-way from

£177

Popular in

December

Cheapest in

August

Average price

£460
American Airlines
  • American Airlines
  • 15/10-22/10
  • 4 total stops
  • 49h 21m total
  • Ontario to London
2/10
  • 2/10
  • 2 total stops
  • 26h 50m total
  • Ontario to London
Highest demand for flights based on searches. 11% potential increase in price (£50 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in September 2025

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 2 September 2025.

Wed 15/1006:10ONT - LGW
2 stops18h 25mAmerican Airlines
Wed 22/1015:05LGW - ONT
2 stops30h 56mAmerican Airlines
Deal found 30/8£482
Wed 1/1006:10ONT - LGW
2 stops18h 00mMultiple Airlines
Sat 18/1013:00LGW - ONT
2 stops28h 19mMultiple Airlines
Deal found 2/9£610
Thu 2/1023:59ONT - LGW
2 stops24h 11mMultiple Airlines
Thu 9/1010:25LGW - ONT
2 stops19h 24mMultiple Airlines
Deal found 2/9£660
Wed 8/1006:10ONT - LGW
2 stops18h 00mMultiple Airlines
Fri 24/1015:05LGW - ONT
2 stops32h 19mMultiple Airlines
Deal found 31/8£661
Mon 27/1010:57ONT - LGW
2 stops25h 03mIberia
Fri 7/1119:40LGW - ONT
2 stops24h 14mIberia
Deal found 2/9£677
Mon 8/1211:15ONT - LGW
2 stops15h 40mMultiple Airlines
Tue 3/211:55LGW - ONT
2 stops17h 50mMultiple Airlines
Deal found 31/8£717
Thu 4/1206:40ONT - LGW
2 stops20h 10mIberia
Mon 8/1211:45LGW - ONT
2 stops29h 49mIberia
Deal found 1/9£738
Sun 9/1110:50ONT - LGW
2 stops16h 05mMultiple Airlines
Tue 18/1111:55LGW - ONT
2 stops18h 10mMultiple Airlines
Deal found 31/8£746
Wed 5/1111:15ONT - LGW
2 stops15h 40mMultiple Airlines
Sun 16/1111:55LGW - ONT
2 stops19h 37mMultiple Airlines
Deal found 31/8£754
Mon 17/1111:15ONT - LGW
2 stops15h 40mMultiple Airlines
Thu 18/1211:55LGW - ONT
2 stops20h 10mMultiple Airlines
Deal found 1/9£763
Thu 9/1013:00ONT - LGW
2 stops33h 35mMultiple Airlines
Thu 16/1010:25LGW - ONT
2 stops19h 24mMultiple Airlines
Deal found 1/9£789

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 2 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

Wed 15/10

06:10-08:35

2 stops18h 25m

London Gatwick

Wed 22/10

15:05-14:01

2 stops30h 56m

£482

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 1/10

06:10-08:10

2 stops18h 00m

London Gatwick

Sat 18/10

13:00-09:19

2 stops28h 19m

£610

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 2/10

23:59-08:10

2 stops24h 11m

London Gatwick

Thu 9/10

10:25-21:49

2 stops19h 24m

£660

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 8/10

06:10-08:10

2 stops18h 00m

London Gatwick

Fri 24/10

15:05-15:24

2 stops32h 19m

£661

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 27/10

10:57-19:00

2 stops25h 03m

London Gatwick

Fri 7/11

19:40-11:54

2 stops24h 14m

£677

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 8/12

11:15-10:55

2 stops15h 40m

London Gatwick

Tue 3/2

11:55-21:45

2 stops17h 50m

£717

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 4/12

06:40-10:50

2 stops20h 10m

London Gatwick

Mon 8/12

11:45-09:34

2 stops29h 49m

£738

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 9/11

10:50-10:55

2 stops16h 05m

London Gatwick

Tue 18/11

11:55-22:05

2 stops18h 10m

£746

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 19/11

11:15-10:55

2 stops15h 40m

London Gatwick

Sun 23/11

11:55-23:59

2 stops20h 04m

£754

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 5/11

11:15-10:55

2 stops15h 40m

London Gatwick

Sun 16/11

11:55-23:32

2 stops19h 37m

£754

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 21 results
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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 and Iberia can get you from Ontario to London Gatwick Airport in just under 18h 25m. Your travel time can differ by up to 6h 38m. There are 5430 mi between Ontario and London Gatwick Airport. Both multi-stop and direct flights can be found to your destination and back.

  • 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
Gatwick
Slough
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Ipswich
Watford
Folkestone
Chichester
Winchester
Dartford
Eastbourne
Guildford
Bishop's Stortford

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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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