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Cheap flights from Ontario to London Gatwick Airport from £213

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Ontario to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Gatwick (LGW). 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 13 June 2025.

Round-trip from

£477

One-way from

£213

Popular in

December

Cheapest in

October

Average price

£615
Iberia
  • Iberia
  • 19/10-29/10
  • 4 total stops
  • 52h 35m total
  • Ontario to London
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24/9
  • 24/9
  • 2 total stops
  • 31h 16m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Ontario to Gatwick

Cheapest flights from Ontario to Gatwick
Explore the most affordable flight options available from Ontario to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Sun 19/1015:00ONT - LGW
2 stops21h 00mIberia
Wed 29/1011:00LGW - ONT
2 stops31h 35mIberia
Deal found 12/6£477
Fri 29/807:05ONT - LGW
2 stops18h 55mKLM
Sat 6/912:00LGW - ONT
2 stops39h 11mKLM
Deal found 12/6£608
Wed 13/812:00ONT - LGW
2 stops15h 45mMultiple Airlines
Tue 2/913:00LGW - ONT
2 stops17h 05mMultiple Airlines
Deal found 11/6£724
Tue 15/707:05ONT - LGW
2 stops18h 55mDelta
Wed 30/712:00LGW - ONT
2 stops19h 42mDelta
Deal found 11/6£760
Sun 27/723:59ONT - LGW
2 stops22h 36mAmerican Airlines
Sun 3/810:40LGW - ONT
2 stops20h 17mAmerican Airlines
Deal found 12/6£841

Cheapflights Fare Finder

Customise your flight search to find flights from Ontario to Gatwick 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 13 June 2025.
Use the filters below to find and compare flights from Ontario to London Gatwick Airport that are best for you.

Fly from

Ontario

Fly to

Gatwick

Route

Depart

Return

Price

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 19/10

15:00-20:00

2 stops21h 00m

London Gatwick

Wed 29/10

11:00-11:35

2 stops31h 35m

£477

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 29/8

07:05-10:00

2 stops18h 55m

London Gatwick

Sat 6/9

12:00-19:11

2 stops39h 11m

£608

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 13/8

12:00-11:45

2 stops15h 45m

London Gatwick

Tue 2/9

13:00-22:05

2 stops17h 05m

£724

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 15/7

07:05-10:00

2 stops18h 55m

London Gatwick

Wed 30/7

12:00-23:42

2 stops19h 42m

£760

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 27/7

23:59-06:35

2 stops22h 36m

London Gatwick

Sun 3/8

10:40-22:57

2 stops20h 17m

£841

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 24/9

15:04-06:20

2 stops31h 16m

£213

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 22/7

07:05-10:00

2 stops18h 55m

£297

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sat 26/7

11:40-10:00

2 stops38h 20m

£313

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 4/9

10:55-20:00

2 stops25h 05m

£343

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sat 27/9

22:35-07:50

2 stops25h 15m

£370

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 11 results
1
2

Best time to book a flight from Ontario to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Ontario 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 Ontario to London Gatwick Airport

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

Currently, February is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of £102). Flying from Ontario to London Gatwick Airport in July is currently the most expensive (average of £142). 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 Gatwick by month

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

In terms of precipitation, rainfall in London Gatwick Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Gatwick Airport when rainfall is around 40.0 mm.

Temperature in Gatwick by month

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

If weather is an important factor for your trip to London Gatwick Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Gatwick

Get insights into the airlines that provide service to Gatwick. 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 Gatwick. Reviews last updated 13 June 2025.
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Icelandair
7.0
Good
499 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,776 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

    Most people fly from Ontario (ONT) if they book a flight from Ontario to London Gatwick. On average, Ontario has 0 outbound flights to London Gatwick per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    According to our current data, Iberia (£477), KLM (£608), and Delta (£760) offers the cheapest pricing from Ontario to London Gatwick Airport.

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

    The cheapet airlines for a one-way flight from Ontario to London Gatwick Airport are KLM (£297), Delta (£313), and Iberia (£343).

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

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

  • How can I find direct flights from Ontario to Gatwick?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Gatwick 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 Ontario to London Gatwick Airport?

    Currently, February is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of £102). Flying from Ontario to London Gatwick Airport in July is currently the most expensive (average of £142). 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

Travelling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Deal
Hounslow
Croydon
Milton Keynes
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Dartford
Guildford

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

Certainly. Search results for flights to Gatwick from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Ontario to Gatwick 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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