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

Departing from London Gatwick Airport to Ontario will take you 33h 27m. 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.

£398+ 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

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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 19 October 2026.

Sat 5/1209:05 -

2 stops22h 18m

Wed 9/1208:44 -

3 stops25h 06m

Deal found 16/10£578

Wed 2/1210:00 -

2 stops20h 59m

Wed 9/1207:00 -

2 stops24h 45m

Deal found 18/10£599

Fri 13/1109:00 -

2 stops18h 30m

Thu 26/1108:15 -

3 stops25h 35m

Deal found 15/10£608

Tue 1/1208:40 -

2 stops22h 18m

Mon 7/1208:44 -

3 stops25h 06m

Deal found 16/10£612

Thu 12/1108:30 -

2 stops19h 00m

Thu 26/1111:40 -

3 stops22h 10m

Deal found 15/10£619

Thu 5/1116:00 -

2 stops35h 30m

Mon 9/1112:01 -

2 stops19h 44m

Deal found 16/10£689

Thu 19/1108:30 -

2 stops19h 00m

Thu 3/1208:00 -

3 stops25h 50m

Deal found 18/10£710

Tue 20/1012:20 -

2 stops29h 15m

Sun 25/1007:00 -

2 stops17h 30m

Deal found 16/10£741

Find flight deals from Gatwick to Ontario

Round-trip from	£503
One-way from	£398
Popular in	December
Cheapest in	February
Average price	£494

Delta
4/2-25/2
4 total stops
59h 12m total
London to Ontario

Search Deals

16/12-31/12
2 total stops
22h 23m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 1% 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 October 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

Sat 20/2

19:40-18:48

2 stops31h 08m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£423

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 4/2

10:00-11:27

2 stops33h 27m

Ontario

Thu 25/2

06:00-15:45

2 stops25h 45m

£503

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Sat 5/12

09:05-23:23

2 stops22h 18m

Ontario

Wed 9/12

08:44-17:50

3 stops25h 06m

£578

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 2/12

10:00-22:59

2 stops20h 59m

Ontario

Wed 9/12

07:00-15:45

2 stops24h 45m

£599

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 12/11

08:30-19:30

2 stops19h 00m

Ontario

Thu 26/11

11:40-17:50

3 stops22h 10m

£619

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Mon 23/11

11:55-22:45

2 stops18h 50m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£695

Fastest return journey

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Mon 2/11

11:55-22:40

2 stops18h 45m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£695

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 15/4

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

Sun 1/11

18:40-19:30

2 stops32h 50m

Ontario

Sat 14/11

10:00-17:50

3 stops23h 50m

£783

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Sun 8/11

11:55-23:06

2 stops19h 11m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£802

Flights are sorted by cheapest return flights first.

Deals found on 17/10

Showing 1-10 of 23 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 33h 27m. 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 £398

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/12. 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 19 October 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 19 October 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 19 October 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 19 October 2026.

Last-minute flights from Gatwick to OntarioDiscover last-minute flight deals from Gatwick to Ontario. Data last updated 19 October 2026 and is based on user searches.

Discover last-minute flight deals from Gatwick to Ontario. Data last updated 19 October 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 19 October 2026.

Search for one-way flight options from Gatwick to Ontario. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.

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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 19 October 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 19 October 2026.

Last-minute flights from Gatwick to Ontario
Discover last-minute flight deals from Gatwick to Ontario. Data last updated 19 October 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 19 October 2026.