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

Departing from London Gatwick Airport to Ontario will take you 28h 56m. Airlines will cover a distance of 5430 mi.

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.

£346+ 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 21 September 2026.

Wed 14/1010:25 -

2 stops32h 51m

Sat 5/1206:00 -

2 stops25h 45m

Deal found 18/9£424

Wed 11/1110:00 -

2 stops21h 00m

Sun 22/1107:00 -

2 stops24h 45m

Deal found 20/9£440

Wed 4/1118:40 -

2 stops32h 48m

Wed 11/1110:35 -

3 stops23h 15m

Deal found 21/9£449

Fri 30/1010:00 -

2 stops38h 12m

Fri 8/107:00 -

2 stops24h 45m

Deal found 17/9£464

Sat 10/1012:20 -

2 stops40h 51m

Tue 8/1213:23 -

2 stops34h 07m

Deal found 18/9£464

Fri 30/1010:00 -

2 stops38h 12m

Sun 10/107:00 -

2 stops24h 45m

Deal found 17/9£465

Thu 5/1118:40 -

2 stops32h 48m

Thu 12/1112:01 -

2 stops21h 49m

Deal found 21/9£467

Wed 14/1020:40 -

2 stops30h 04m

Thu 10/1207:00 -

2 stops19h 50m

Deal found 18/9£497

Mon 2/1111:45 -

2 stops43h 12m

Sun 10/107:00 -

2 stops28h 00m

Deal found 17/9£516

Sun 18/1018:35 -

2 stops33h 05m

Sun 25/1012:01 -

2 stops22h 49m

Deal found 20/9£538

Wed 4/1119:40 -

2 stops24h 12m

Wed 11/1106:00 -

2 stops20h 50m

Deal found 19/9£553

Tue 13/1010:30 -

2 stops21h 22m

Sun 13/1206:34 -

2 stops16h 56m

Deal found 18/9£578

Find flight deals from Gatwick to Ontario

Round-trip from	£424
One-way from	£346
Popular in	December
Cheapest in	February
Average price	£466

Delta
14/10-5/12
4 total stops
58h 36m total
London to Ontario

Search Deals

4/11-31/12
3 total stops
37h 03m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (£6 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 September 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.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Fri 30/10

10:00-17:12

2 stops38h 12m

Ontario

Sun 10/1

07:00-15:45

2 stops24h 45m

£465

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 17/3

11:45-09:41

2 stops28h 56m

Ontario

Wed 31/3

14:22-20:00

2 stops21h 38m

£479

Fastest return journey

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Sun 24/1

11:55-21:45

2 stops17h 50m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£694

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 4/11

11:55-21:45

2 stops17h 50m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£698

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 22/10

09:25-19:40

2 stops18h 15m

Ontario

Thu 29/10

12:01-17:50

2 stops22h 49m

£707

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Fri 23/10

14:00-10:29

2 stops28h 29m

Ontario

Thu 29/10

06:25-06:50

2 stops17h 25m

£720

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 30/9

15:40-22:15

2 stops38h 35m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£735

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 1/10

15:40-22:15

2 stops38h 35m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£735

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Fri 26/2

11:55-22:39

2 stops18h 44m

Ontario

Tue 16/3

12:10-10:55

2 stops15h 45m

£785

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Fri 22/1

11:55-21:45

2 stops17h 50m

Ontario

Sun 31/1

11:25-10:55

2 stops15h 30m

£833

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 24 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.
How long is the flight from London Gatwick Airport to Ontario?
Departing from London Gatwick Airport to Ontario will take you 28h 56m. Airlines will cover a distance of 5430 mi.
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.

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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.

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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 £346

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/11. 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 21 September 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 21 September 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 21 September 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 21 September 2026.

Last-minute flights from Gatwick to OntarioDiscover last-minute flight deals from Gatwick to Ontario. Data last updated 21 September 2026 and is based on user searches.

Discover last-minute flight deals from Gatwick to Ontario. Data last updated 21 September 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 21 September 2026.

Search for one-way flight options from Gatwick to Ontario. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

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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?

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

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

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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 21 September 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 21 September 2026.

Last-minute flights from Gatwick to Ontario
Discover last-minute flight deals from Gatwick to Ontario. Data last updated 21 September 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 21 September 2026.