Cheap flights from Ontario to London Gatwick Airport from £246

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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
23 7月 — 30 7月1
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 18 7月 2025.

Round-trip from

£506

One-way from

£246

Popular in

December

Cheapest in

October

Average price

£585
KLM
  • KLM
  • 26/8-31/8
  • 4 total stops
  • 58h 06m total
  • Ontario to London
13/8
  • 13/8
  • 2 total stops
  • 26h 58m total
  • Ontario to London
Highest demand for flights based on searches. 10% potential increase in price (£47 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 18 7月 2025.

週二 26/807:05ONT - LGW
2 stops18h 55mKLM
週日 31/812:00LGW - ONT
2 stops39h 11mKLM
Deal found 17/7£506
週二 9/908:15ONT - LGW
2 stops27h 45mIberia
週二 7/1011:35LGW - ONT
2 stops19h 07mIberia
Deal found 17/7£558
週三 10/906:10ONT - LGW
2 stops18h 00mAmerican Airlines
週二 7/1012:20LGW - ONT
2 stops52h 36mAmerican Airlines
Deal found 17/7£622
週三 1/1015:06ONT - LGW
2 stops15h 34mMultiple Airlines
週四 30/1011:55LGW - ONT
2 stops18h 45mMultiple Airlines
Deal found 17/7£724
週五 1/807:05ONT - LGW
2 stops18h 55mDelta
週五 8/812:00LGW - ONT
2 stops19h 42mDelta
Deal found 16/7£808
週一 22/1211:00ONT - LGW
2 stops23h 50mBritish Airways
週二 6/111:00LGW - ONT
2 stops43h 02mBritish Airways
Deal found 18/7£1,411

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 18 7月 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

週二 26/8

07:05-10:00

2 stops18h 55m

London Gatwick

週日 31/8

12:00-19:11

2 stops39h 11m

£506

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週二 9/9

08:15-20:00

2 stops27h 45m

London Gatwick

週二 7/10

11:35-22:42

2 stops19h 07m

£558

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週三 10/9

06:10-08:10

2 stops18h 00m

London Gatwick

週二 7/10

12:20-08:56

2 stops52h 36m

£622

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週三 1/10

15:06-14:40

2 stops15h 34m

London Gatwick

週四 30/10

11:55-23:40

2 stops18h 45m

£724

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週五 1/8

07:05-10:00

2 stops18h 55m

London Gatwick

週五 8/8

12:00-23:42

2 stops19h 42m

£808

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週一 22/12

11:00-18:50

2 stops23h 50m

London Gatwick

週二 6/1

11:00-22:02

2 stops43h 02m

£1,411

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週三 13/8

19:22-06:20

2 stops26h 58m

£246

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週一 6/10

14:46-20:00

2 stops21h 14m

£309

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週日 27/7

07:05-10:00

2 stops18h 55m

£313

OntarioLondon

ONT - LGW

ONTLGW

Ontario

週四 31/7

07:05-10:00

2 stops18h 55m

£350

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 13 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, April 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.

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 18 7月 2025.
Get a feel of what it's like to fly with Delta, KLM, andAmerican Airlines from Ontario to London Gatwick Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

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.
8.0
Very Good

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

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.

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

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.

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

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.

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

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.

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

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, KLM (£506), Iberia (£558), and American Airlines (£622) 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 Iberia (£309), KLM (£313), and Delta (£350).

  • 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, April 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 London Gatwick Airport?

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

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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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