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Cheap flights from London Gatwick Airport to Ontario from £418

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ONT
29 Apr — 6 May1
1 adult

Cheap flight deals from Gatwick to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Ontario (ONT). 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 24 April 2025.

Round-trip from

£418

Popular in

August

Cheapest in

February

Average price

£480
11/9-21/9
  • 11/9-21/9
  • 4 total stops
  • 47h 36m total
  • London to Ontario
Highest demand for flights based on searches. 9% potential increase in price (£41 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in April 2025

Find flight deals from Gatwick to Ontario

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 24 April 2025.

Thu 11/915:05LGW - ONT
2 stops30h 24mMultiple Airlines
Sun 21/906:38ONT - LGW
2 stops17h 12mMultiple Airlines
Deal found 24/4£418
Thu 11/912:20LGW - ONT
2 stops29h 19mFinnair
Sun 21/923:59ONT - LGW
2 stops24h 11mFinnair
Deal found 23/4£429
Thu 2/1015:05LGW - ONT
2 stops28h 24mAmerican Airlines
Wed 8/1006:38ONT - LGW
2 stops17h 57mAmerican Airlines
Deal found 23/4£555
Wed 10/911:35LGW - ONT
2 stops20h 01mBritish Airways
Sun 21/910:54ONT - LGW
2 stops25h 06mBritish Airways
Deal found 23/4£629
Thu 2/1011:35LGW - ONT
2 stops20h 01mIberia
Thu 9/1012:51ONT - LGW
2 stops23h 09mIberia
Deal found 23/4£655
Sat 21/612:10LGW - ONT
2 stops41h 49mIcelandair
Sat 5/723:59ONT - LGW
2 stops49h 36mIcelandair
Deal found 23/4£813
Tue 17/612:00LGW - ONT
2 stops19h 46mDelta
Sun 29/606:00ONT - LGW
2 stops20h 00mDelta
Deal found 23/4£1,184

Cheapflights Fare Finder

Customise your flight search to find flights from Gatwick to Ontario 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 24 April 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Ontario that are best for you.

Fly from

Gatwick

Fly to

Ontario

Route

Depart

Return

Price

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 11/9

15:05-13:29

2 stops30h 24m

Ontario

Sun 21/9

06:38-07:50

2 stops17h 12m

£418

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 11/9

12:20-09:39

2 stops29h 19m

Ontario

Sun 21/9

23:59-08:10

2 stops24h 11m

£429

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 2/10

15:05-11:29

2 stops28h 24m

Ontario

Wed 8/10

06:38-08:35

2 stops17h 57m

£555

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 10/9

11:35-23:36

2 stops20h 01m

Ontario

Sun 21/9

10:54-20:00

2 stops25h 06m

£629

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 2/10

11:35-23:36

2 stops20h 01m

Ontario

Thu 9/10

12:51-20:00

2 stops23h 09m

£655

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Sat 21/6

12:10-21:59

2 stops41h 49m

Ontario

Sat 5/7

23:59-09:35

2 stops49h 36m

£813

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 17/6

12:00-23:46

2 stops19h 46m

Ontario

Sun 29/6

06:00-10:00

2 stops20h 00m

£1,184

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 17/9

15:05-11:29

2 stops28h 24m

£619

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 17/9

12:20-11:22

2 stops31h 02m

£627

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 12/5

11:35-23:43

2 stops20h 08m

£631

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 13 results
1
2

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.
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 London Gatwick Airport to Ontario

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

Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to Ontario (average of £516). Flying from London Gatwick Airport to Ontario in August is currently the most expensive (average of £827). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 24 April 2025.

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Ontario. 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 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.

  • What are the cheapest airlines flying from London Gatwick Airport to Ontario round-trip?

    Cheapflights users have booked flights from London Gatwick Airport to Ontario round-trip from £429. Other airlines that can offer you cheap pricing are American Airlines, from £555, and British Airways, from £629.

  • What are the cheapest airlines to fly from London Gatwick Airport to Ontario one-way?

    For one-way options, check prices for Finnair. According to our data, you can fly for as low as £627. Users have also found prices from £631 and £892 on Iberia and Icelandair, respectively.

  • 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.

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

    Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to Ontario (average of £516). Flying from London Gatwick Airport to Ontario in August is currently the most expensive (average of £827). 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

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Alternative routes for Gatwick to Ontario

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

Fly with Cheapflights

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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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