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.

In terms of precipitation, rainfall in London Gatwick Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Gatwick Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Gatwick Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

How far in advance should I book a flight from Ontario to London Gatwick Airport?

Travelers have found it’s best to book a flight 32 days in advance to save up to 18% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 32 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Ontario to London Gatwick Airport 1-2 weeks in advance for as low as £508, or £672 for flights within the next 24 hours.

What is the cheapest month to fly from Ontario to London Gatwick Airport?

The best pricing can be found in the month of August. Prices to London Gatwick Airport from Ontario average £528. You can even find prices in August for less than £528, as users have found deals to London Gatwick Airport from as low as £338. The month of December appears to be one of the more expensive times to travel to London Gatwick Airport from Ontario. Flying in the targeted month can save you up to 36%.

What is the cheapest time of day to fly from ONT to LGW?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to London Gatwick Airport as you normally would.

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.

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.

£177+ Flights from Ontario to London Gatwick Airport

Cheap flight deals from Ontario to Gatwick

Round-trip from	£482
One-way from	£177
Popular in	December
Cheapest in	August
Average price	£460

American Airlines
15/10-22/10
4 total stops
49h 21m total
Ontario to London

Search Deals

2/10
2 total stops
26h 50m total
Ontario to London

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£50 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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

Best flights from Ontario to Gatwick
Discover carefully curated flight deals from Ontario to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 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

Mon 27/1010:57ONT - LGW

2 stops25h 03mIberia

Fri 7/1119:40LGW - ONT

2 stops24h 14mIberia

Deal found 2/9£677

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

Thu 4/1206:40ONT - LGW

2 stops20h 10mIberia

Mon 8/1211:45LGW - ONT

2 stops29h 49mIberia

Deal found 1/9£738

Mon 8/1211:15ONT - LGW

2 stops15h 40mMultiple Airlines

Tue 3/211:55LGW - ONT

2 stops17h 50mMultiple Airlines

Deal found 31/8£717

Sun 9/1110:50ONT - LGW

2 stops16h 05mMultiple Airlines

Tue 18/1111:55LGW - ONT

2 stops18h 10mMultiple Airlines

Deal found 31/8£746

Wed 19/1111:15ONT - LGW

2 stops15h 40mMultiple Airlines

Sun 23/1111:55LGW - ONT

2 stops20h 04mMultiple Airlines

Deal found 31/8£754

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

Last-minute flights from Ontario to Gatwick
Discover last-minute flight deals from Ontario to Gatwick. Data last updated 2 September 2025 and is based on user searches.

Sun 31/815:30ONT - LGW

2 stops15h 10mMultiple Airlines

Sun 7/913:00LGW - ONT

2 stops18h 45mMultiple Airlines

Deal found 30/8£4,679

Mon 1/923:59ONT - LGW

2 stops29h 01mMultiple Airlines

Mon 8/905:20LGW - ONT

2 stops26h 43mMultiple Airlines

Deal found 31/8£1,679

Tue 2/906:00ONT - LGW

2 stops45h 45mMultiple Airlines

Fri 5/920:40LGW - ONT

2 stops54h 14mMultiple Airlines

Deal found 30/8£3,689

Wed 3/915:06ONT - LGW

2 stops15h 34mMultiple Airlines

Sun 7/913:00LGW - ONT

2 stops18h 45mMultiple Airlines

Deal found 30/8£1,754

Sat 20/906:10ONT - LGW

2 stops18h 00mMultiple Airlines

Sat 27/915:05LGW - ONT

2 stops28h 50mMultiple Airlines

Deal found 31/8£864

Sun 28/914:30ONT - LGW

2 stops21h 30mIberia

Sun 5/1021:45LGW - ONT

2 stops32h 33mIberia

Deal found 1/9£1,115

Tue 30/914:54ONT - LGW

2 stops21h 06mIberia

Thu 9/1011:40LGW - ONT

2 stops20h 19mIberia

Deal found 31/8£7,203

One-way flights from Ontario to Gatwick
Search for one-way flight options from Ontario to Gatwick. Find affordable one-way fares based on user searches. Data last updated 2 September 2025.

Thu 2/1019:30ONT - LGW

2 stops26h 50mMultiple Airlines

Deal found 31/8£177

Thu 25/919:30ONT - LGW

2 stops26h 50mMultiple Airlines

Deal found 1/9£200

Wed 15/1008:00ONT - LGW

2 stops38h 20mMultiple Airlines

Deal found 31/8£208

Mon 15/914:45ONT - LGW

2 stops31h 35mMultiple Airlines

Deal found 1/9£228

Wed 14/111:30ONT - LGW

2 stops38h 30mMultiple Airlines

Deal found 1/9£252

Tue 27/106:37ONT - LGW

2 stops20h 13mIberia

Deal found 1/9£290

Wed 8/1006:10ONT - LGW

2 stops18h 00mMultiple Airlines

Deal found 1/9£301

Sun 7/1206:40ONT - LGW

2 stops20h 10mIberia

Deal found 1/9£308

Mon 12/107:00ONT - LGW

2 stops26h 50mMultiple Airlines

Deal found 1/9£313

Sat 20/913:42ONT - LGW

2 stops44h 08mMultiple Airlines

Deal found 31/8£321

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to London Gatwick Airport that are best for you.

Fly from

Fly to

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

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

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

Milton Keynes

Croydon

Hounslow

Gatwick

Slough

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Ipswich

Watford

Folkestone

Chichester

Winchester

Dartford

Eastbourne

Guildford

Bishop's Stortford

Browse thousands of different options on Cheapflights for your next trip

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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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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.

Cheap flight deals from Ontario to Gatwick

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Gatwick

Cheapest flights from Ontario to GatwickExplore 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.

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.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to London Gatwick Airport that are best for you.

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.

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?

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?

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

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

How can I find direct flights from Ontario to Gatwick?

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

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

Travelling to a place near London Gatwick Airport?

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Alternative routes for Ontario to Gatwick

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

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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?

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

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

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

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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.