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

For one-way options, check prices for British Airways. According to our data, you can fly for as low as £717. Users have also found prices from £734 and £1,153 on Iberia and Delta, respectively.

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

Travellers seeking maximum savings on their London Gatwick Airport to Ontario flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Users have found that booking a flight from London Gatwick Airport to Ontario at least 8 days early can save you up to 32% on average compared to booking a flight this week. If booking 8 days before your flight isn’t an option for you, users have found flights from London Gatwick Airport to Ontario for as little as £428 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £679 for flights departing within the next 3 days.

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

Our data shows that February tends to be the cheapest month to fly to Ontario from London Gatwick Airport. Users have commonly found prices around £484 for the month, but tickets can be as low as £343. Due to multiple factors, prepare for potentially higher prices in August.

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.

£347+ Flights from London Gatwick Airport to Ontario

Cheap flight deals from Gatwick to Ontario

Round-trip from	£356
One-way from	£347
Popular in	August
Cheapest in	February
Average price	£491

8/9-15/9
4 total stops
54h 26m total
London to Ontario

Search Deals

9/9
2 total stops
32h 44m total
London to Ontario

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£40 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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 13 June 2025.

Mon 8/915:05LGW - ONT

2 stops28h 51mMultiple Airlines

Mon 15/922:35ONT - LGW

2 stops25h 35mMultiple Airlines

Deal found 10/6£356

Tue 2/915:05LGW - ONT

2 stops28h 51mAmerican Airlines

Tue 9/916:45ONT - LGW

2 stops31h 25mAmerican Airlines

Deal found 11/6£364

Mon 4/812:00LGW - ONT

2 stops42h 27mKLM

Mon 11/811:45ONT - LGW

2 stops38h 15mKLM

Deal found 11/6£784

Tue 29/712:00LGW - ONT

2 stops19h 42mVirgin Atlantic

Tue 5/813:15ONT - LGW

2 stops36h 45mVirgin Atlantic

Deal found 11/6£862

Mon 18/811:35LGW - ONT

2 stops19h 13mIberia

Mon 25/814:57ONT - LGW

2 stops21h 03mIberia

Deal found 10/6£964

Tue 8/712:00LGW - ONT

2 stops19h 42mDelta

Tue 15/707:05ONT - LGW

2 stops18h 55mDelta

Deal found 11/6£1,493

Mon 23/611:35LGW - ONT

2 stops20h 24mBritish Airways

Thu 26/610:54ONT - LGW

2 stops25h 06mBritish Airways

Deal found 11/6£1,854

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 13 June 2025.

Mon 8/915:05LGW - ONT

2 stops28h 51mMultiple Airlines

Mon 15/922:35ONT - LGW

2 stops25h 35mMultiple Airlines

Deal found 10/6£356

Tue 2/915:05LGW - ONT

2 stops28h 51mAmerican Airlines

Tue 9/916:45ONT - LGW

2 stops31h 25mAmerican Airlines

Deal found 11/6£364

Mon 4/812:00LGW - ONT

2 stops42h 27mKLM

Mon 11/811:45ONT - LGW

2 stops38h 15mKLM

Deal found 11/6£784

Tue 29/712:00LGW - ONT

2 stops19h 42mVirgin Atlantic

Tue 5/813:15ONT - LGW

2 stops36h 45mVirgin Atlantic

Deal found 11/6£862

Mon 18/811:35LGW - ONT

2 stops19h 13mIberia

Mon 25/814:57ONT - LGW

2 stops21h 03mIberia

Deal found 10/6£964

Tue 8/712:00LGW - ONT

2 stops19h 42mDelta

Tue 15/707:05ONT - LGW

2 stops18h 55mDelta

Deal found 11/6£1,493

Mon 23/611:35LGW - ONT

2 stops20h 24mBritish Airways

Thu 26/610:54ONT - LGW

2 stops25h 06mBritish Airways

Deal found 11/6£1,854

Last-minute flights from Gatwick to Ontario
Discover last-minute flight deals from Gatwick to Ontario. Data last updated 13 June 2025 and is based on user searches.

Mon 16/615:05LGW - ONT

2 stops28h 55mMultiple Airlines

Tue 24/606:10ONT - LGW

2 stops18h 00mMultiple Airlines

Deal found 11/6£812

Fri 20/610:40LGW - ONT

2 stops42h 58mAmerican Airlines

Sun 6/706:10ONT - LGW

2 stops42h 25mAmerican Airlines

Deal found 12/6£431

Fri 20/612:00LGW - ONT

2 stops39h 54mKLM

Fri 4/711:49ONT - LGW

2 stops38h 11mKLM

Deal found 12/6£802

Mon 23/611:35LGW - ONT

2 stops20h 24mBritish Airways

Thu 26/610:54ONT - LGW

2 stops25h 06mBritish Airways

Deal found 11/6£1,854

Mon 23/612:00LGW - ONT

2 stops19h 46mDelta

Mon 7/707:05ONT - LGW

2 stops18h 55mDelta

Deal found 12/6£2,138

Tue 8/712:00LGW - ONT

2 stops19h 42mDelta

Tue 15/707:05ONT - LGW

2 stops18h 55mDelta

Deal found 11/6£1,493

Tue 29/712:00LGW - ONT

2 stops19h 42mVirgin Atlantic

Tue 5/813:15ONT - LGW

2 stops36h 45mVirgin Atlantic

Deal found 11/6£862

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 13 June 2025.

Tue 9/910:00LGW - ONT

2 stops32h 44mMultiple Airlines

Deal found 12/6£347

Wed 22/1011:35LGW - ONT

2 stops20h 27mBritish Airways

Deal found 12/6£717

Wed 17/907:10LGW - ONT

2 stops19h 50mIberia

Deal found 12/6£734

Tue 19/812:00LGW - ONT

2 stops19h 40mDelta

Deal found 13/6£1,153

Wed 18/612:00LGW - ONT

2 stops19h 46mVirgin Atlantic

Deal found 12/6£2,330

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

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 8/9

15:05-11:56

2 stops28h 51m

Ontario

Mon 15/9

22:35-08:10

2 stops25h 35m

£356

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 2/9

15:05-11:56

2 stops28h 51m

Ontario

Tue 9/9

16:45-08:10

2 stops31h 25m

£364

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 4/8

12:00-22:27

2 stops42h 27m

Ontario

Mon 11/8

11:45-10:00

2 stops38h 15m

£784

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 29/7

12:00-23:42

2 stops19h 42m

Ontario

Tue 5/8

13:15-10:00

2 stops36h 45m

£862

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 18/8

11:35-22:48

2 stops19h 13m

Ontario

Mon 25/8

14:57-20:00

2 stops21h 03m

£964

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 8/7

12:00-23:42

2 stops19h 42m

Ontario

Tue 15/7

07:05-10:00

2 stops18h 55m

£1,493

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 23/6

11:35-23:59

2 stops20h 24m

Ontario

Thu 26/6

10:54-20:00

2 stops25h 06m

£1,854

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 9/9

10:00-10:44

2 stops32h 44m

£347

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 22/10

11:35-00:02

2 stops20h 27m

£717

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 17/9

07:10-19:00

2 stops19h 50m

£734

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 12 results

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

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

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

Peruse reviews from past customers who have flown with Delta, KLM and Virgin Atlantic from London to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,946 reviews

Check prices

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

Delta

8.0

Very Good

7,946 reviews

Delta

8.0

Very Good

7,946 reviews

Check prices

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

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very Good

7,946 reviews

Check prices

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

Virgin Atlantic

7.4

Good

652 reviews

Delta

8.0

Very Good

7,946 reviews

Check prices

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

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,946 reviews

Check prices

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

Iberia

7.0

Good

2,776 reviews

Delta

8.0

Very Good

7,946 reviews

Check prices

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

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 to fly from London Gatwick Airport to Ontario one-way?
For one-way options, check prices for British Airways. According to our data, you can fly for as low as £717. Users have also found prices from £734 and £1,153 on Iberia and Delta, 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

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 £347

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Gatwick to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 13 June 2025.

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 13 June 2025.

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.

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?

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

Peruse reviews from past customers who have flown with Delta, KLM and Virgin Atlantic from London to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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?

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

Fly with Cheapflights

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 Gatwick to Ontario?

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

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 13 June 2025.