In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

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

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

What airport do you fly into for flights to Ontario from London Gatwick?

Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from London Gatwick. Booking flights from London Gatwick to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from London Gatwick from 0 different airlines.

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

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

How can I find direct flights from Gatwick to Ontario?

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

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

Yes. Cheapflights offers flight deals from Gatwick to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£380+ Cheap Flights from London Gatwick Airport to Ontario

Cheap flight deals from Gatwick to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Gatwick to Ontario
Explore the most affordable flight options available from Gatwick to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2026.

Thu 22/1010:25 -

2 stops19h 29m

Sat 9/106:00 -

2 stops25h 45m

Deal found 27/8£467

Thu 22/1010:25 -

2 stops19h 29m

Fri 8/117:05 -

2 stops55h 55m

Deal found 27/8£468

Wed 4/1110:00 -

2 stops20h 43m

Sat 7/1112:16 -

2 stops19h 29m

Deal found 23/8£488

Thu 24/911:30 -

2 stops20h 06m

Thu 15/1014:22 -

2 stops21h 38m

Deal found 27/8£489

Wed 11/1110:00 -

2 stops21h 00m

Fri 27/1112:18 -

2 stops19h 27m

Deal found 25/8£497

Fri 18/917:00 -

2 stops37h 40m

Sat 26/906:00 -

2 stops43h 25m

Deal found 26/8£500

Wed 28/1010:00 -

2 stops41h 25m

Sat 9/106:00 -

2 stops25h 45m

Deal found 27/8£505

Wed 28/1010:00 -

2 stops41h 25m

Fri 8/117:05 -

2 stops55h 55m

Deal found 27/8£506

Mon 23/1111:45 -

2 stops30h 06m

Mon 14/1210:30 -

2 stops24h 30m

Deal found 24/8£528

Thu 22/1011:30 -

2 stops20h 22m

Sun 10/106:00 -

2 stops29h 00m

Deal found 27/8£587

Sat 21/1119:40 -

2 stops31h 17m

Sun 29/1107:00 -

2 stops28h 00m

Deal found 23/8£625

Wed 28/1011:45 -

2 stops37h 59m

Sun 10/106:00 -

2 stops29h 00m

Deal found 27/8£631

Find flight deals from Gatwick to Ontario

Round-trip from	£467
One-way from	£380
Popular in	December
Cheapest in	February
Average price	£526

Delta
22/10-9/1
4 total stops
45h 14m total
London to Ontario

Search Deals

Iberia
11/11
2 total stops
22h 00m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (£7 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 25/11

11:55-22:25

2 stops18h 30m

Ontario

Wed 16/12

10:05-10:55

2 stops16h 50m

£880

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 8/10

15:40-23:54

2 stops40h 14m

Ontario

Thu 15/10

11:13-14:40

2 stops19h 27m

£882

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 1/10

15:40-23:24

2 stops39h 44m

Ontario

Sat 31/10

11:29-10:55

2 stops16h 26m

£926

Fastest return journey

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 10/9

13:00-23:24

2 stops18h 24m

Ontario

Thu 24/9

15:14-14:40

2 stops15h 26m

£1,032

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 23/12

11:55-23:56

2 stops20h 01m

Ontario

Thu 7/1

07:00-10:55

2 stops19h 55m

£1,108

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Fri 25/9

07:25-23:24

2 stops23h 59m

Ontario

Fri 16/10

23:05-22:25

2 stops39h 20m

£1,113

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 24/9

15:40-23:24

2 stops39h 44m

Ontario

Wed 7/10

14:13-14:40

2 stops16h 27m

£1,168

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 24/9

17:35-20:57

2 stops35h 22m

Ontario

Wed 7/10

22:42-16:35

2 stops33h 53m

£1,173

Cheapest one-way

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 14/10

11:30-23:52

2 stops20h 22m

£419

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Sun 6/9

14:00-10:04

2 stops28h 04m

£522

Flights are sorted by cheapest return flights first.

Deals found on 23/8

Showing 1-10 of 19 resultsSorted by cheapest first

Best time to book a flight from Gatwick to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Gatwick with our price prediction graph.

LGW-ONT

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.

Related info for your journey

What airport do you fly into for flights to Ontario from London Gatwick?
Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from London Gatwick. Booking flights from London Gatwick to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from London Gatwick from 0 different airlines.
Can I find deals for flights from Gatwick to Ontario that include hotel bookings?
Yes. In addition to deals on Gatwick to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Gatwick to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Ontario.
Can I find deals for business class flights from Gatwick to Ontario?
Yes. Cheapflights offers flight deals from Gatwick to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from Gatwick to Ontario?

Cheapflights makes it easy to find Gatwick to Ontario 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 Gatwick to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Gatwick to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Ontario from Gatwick? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Gatwick to Ontario 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 London Gatwick Airport to Ontario from £380

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Gatwick to Ontario

Cheapest flights from Gatwick to OntarioExplore the most affordable flight options available from Gatwick to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2026.

Explore the most affordable flight options available from Gatwick to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2026.

Best flights from Gatwick to OntarioDiscover carefully curated flight deals from Gatwick to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 August 2026.

Discover carefully curated flight deals from Gatwick to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 August 2026.

Last-minute flights from Gatwick to OntarioDiscover last-minute flight deals from Gatwick to Ontario. Data last updated 28 August 2026 and is based on user searches.

Discover last-minute flight deals from Gatwick to Ontario. Data last updated 28 August 2026 and is based on user searches.

One-way flights from Gatwick to OntarioSearch for one-way flight options from Gatwick to Ontario. Find affordable one-way fares based on user searches. Data last updated 28 August 2026.

Search for one-way flight options from Gatwick to Ontario. Find affordable one-way fares based on user searches. Data last updated 28 August 2026.

Find flight deals from Gatwick to Ontario

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Cheapflights Fare Finder

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

Best time to book a flight from Gatwick to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Gatwick with our price prediction graph.

Related info for your journey

What airport do you fly into for flights to Ontario from London Gatwick?

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

How can I find direct flights from Gatwick to Ontario?

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

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 Gatwick to Ontario

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

Complete your trip

Complete your trip to Ontario by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from Gatwick to Ontario by cabin class

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Other flights to Ontario

Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 28 August 2026.

Gatwick and Ontario flights

Browse other Gatwick and Ontario flight options. Last updated on 28 August 2026.

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

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

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Cheapest flights from Gatwick to Ontario
Explore the most affordable flight options available from Gatwick to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 August 2026.

Best flights from Gatwick to Ontario
Discover carefully curated flight deals from Gatwick to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 August 2026.

Last-minute flights from Gatwick to Ontario
Discover last-minute flight deals from Gatwick to Ontario. Data last updated 28 August 2026 and is based on user searches.

One-way flights from Gatwick to Ontario
Search for one-way flight options from Gatwick to Ontario. Find affordable one-way fares based on user searches. Data last updated 28 August 2026.