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Cheap flights from Ontario to London Gatwick Airport from £236

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
18 Aug — 25 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Gatwick

Enter your travel dates to find the best prices.

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 19 July 2026.

Mon 12/1007:05
ONT
-
LGW
2 stops18h 35m
Delta
Tue 20/1010:35
LGW
-
ONT
2 stops20h 08m
Delta
Deal found 19/7£682
Sat 3/1018:00
ONT
-
LGW
2 stops31h 25m
Delta
Tue 13/1010:35
LGW
-
ONT
2 stops32h 41m
Delta
Deal found 17/7£689
Mon 17/806:00
ONT
-
LGW
2 stops18h 40m
American Airlines
Wed 2/914:30
LGW
-
ONT
2 stops29h 13m
American Airlines
Deal found 17/7£696
Tue 1/907:05
ONT
-
LGW
2 stops17h 35m
American Airlines
Tue 8/910:30
LGW
-
ONT
2 stops20h 29m
American Airlines
Deal found 18/7£696
Sun 16/814:27
ONT
-
LGW
2 stops21h 33m
Iberia
Thu 27/811:30
LGW
-
ONT
2 stops19h 29m
Iberia
Deal found 17/7£702
Mon 28/1207:00
ONT
-
LGW
2 stops24h 45m
Delta
Wed 6/110:00
LGW
-
ONT
2 stops38h 12m
Delta
Deal found 15/7£705
Mon 17/807:05
ONT
-
LGW
2 stops18h 35m
Delta
Wed 2/910:25
LGW
-
ONT
2 stops20h 20m
Delta
Deal found 17/7£707
Mon 17/810:54
ONT
-
LGW
2 stops23h 56m
Multiple Airlines
Sun 30/810:20
LGW
-
ONT
2 stops20h 30m
Multiple Airlines
Deal found 14/7£716
Thu 24/1206:00
ONT
-
LGW
2 stops25h 45m
Delta
Wed 6/110:00
LGW
-
ONT
2 stops38h 12m
Delta
Deal found 15/7£750
Mon 31/811:56
ONT
-
LGW
2 stops20h 04m
Delta
Mon 7/910:25
LGW
-
ONT
2 stops19h 27m
Delta
Deal found 17/7£766
Wed 19/813:50
ONT
-
LGW
2 stops16h 50m
Multiple Airlines
Thu 27/813:00
LGW
-
ONT
2 stops17h 10m
Multiple Airlines
Deal found 16/7£771
Wed 28/1010:25
ONT
-
LGW
2 stops17h 30m
Multiple Airlines
Mon 2/1111:55
LGW
-
ONT
2 stops18h 45m
Multiple Airlines
Deal found 19/7£774

Find 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 19 July 2026.

Round-trip from

£682

One-way from

£236

Popular in

June

Cheapest in

September

Average price

£753
Delta
  • Delta
  • 6/10-14/10
  • 4 total stops
  • 39h 23m total
  • Ontario to London
Search Deals
13/8
  • 13/8
  • 2 total stops
  • 20h 00m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£127 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 19 July 2026.
Use the filters below to find and compare flights from Ontario to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 19/8

13:50-14:40

2 stops16h 50m

London Gatwick

Thu 27/8

13:00-22:10

2 stops17h 10m

£771

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 10/11

10:05-10:55

2 stops16h 50m

London Gatwick

Sun 15/11

11:55-22:40

2 stops18h 45m

£844

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 19/8

07:00-11:45

2 stops20h 45m

London Gatwick

Mon 24/8

15:40-19:03

2 stops35h 23m

£866

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 7/10

11:13-14:40

2 stops19h 27m

London Gatwick

Tue 13/10

15:40-23:45

2 stops40h 05m

£871

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 18/8

13:50-14:40

2 stops16h 50m

London Gatwick

Thu 27/8

13:00-22:10

2 stops17h 10m

£877

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 17/8

12:25-11:45

2 stops15h 20m

London Gatwick

Wed 2/9

15:40-17:10

2 stops33h 30m

£924
Fastest return journey

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 16/8

14:05-14:40

2 stops16h 35m

London Gatwick

Sun 23/8

13:00-22:00

2 stops17h 00m

£950

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 10/1

10:05-10:55

2 stops16h 50m

London Gatwick

Fri 15/1

11:55-22:15

2 stops18h 20m

£965

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 13/12

08:05-10:55

2 stops18h 50m

London Gatwick

Wed 30/12

11:55-22:39

2 stops18h 44m

£1,006

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 23/9

21:10-22:25

2 stops41h 15m

London Gatwick

Mon 28/9

07:05-20:13

2 stops45h 08m

£1,025

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 24 resultsSorted by cheapest first
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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.

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.

  • 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.

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
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Watford
Eastbourne
Southend-on-Sea
Kingston upon Thames
Southall
Aylesbury
Romford
Enfield
Borehamwood

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How does Cheapflights help users find flights from Ontario to Gatwick?

Cheapflights makes it easy to find Ontario to Gatwick 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 Ontario to Gatwick?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Gatwick.

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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