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Cheap flights from Ontario to London Gatwick Airport from £219

ONT — LGW
4 Oct — 11 Oct1
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

Wed 14/1006:00 -
2 stops20h 40m
Wed 21/1014:30 -
2 stops29h 44m
Deal found 30/8£668
Sat 10/1006:20 -
2 stops19h 00m
Fri 23/1010:25 -
2 stops20h 18m
Deal found 2/9£716
Tue 22/907:05 -
2 stops18h 20m
Tue 20/1010:35 -
2 stops20h 08m
Deal found 4/9£793
Wed 21/1006:00 -
2 stops18h 35m
Thu 5/1111:15 -
2 stops20h 31m
Deal found 2/9£830
Thu 10/912:17 -
2 stops19h 43m
Thu 8/1010:25 -
2 stops20h 18m
Deal found 2/9£831
Wed 14/1014:13 -
2 stops16h 27m
Wed 21/1015:40 -
2 stops38h 40m
Deal found 30/8£832
Fri 30/1011:13 -
2 stops16h 42m
Fri 6/1111:55 -
2 stops18h 45m
Deal found 3/9£842
Thu 15/1014:13 -
2 stops16h 27m
Thu 22/1015:40 -
2 stops38h 40m
Deal found 31/8£843
Tue 8/1210:05 -
2 stops16h 50m
Sun 13/1211:55 -
2 stops18h 45m
Deal found 31/8£844
Mon 26/1011:13 -
2 stops16h 42m
Fri 30/1011:55 -
2 stops17h 25m
Deal found 1/9£853
Sun 18/1010:25 -
2 stops25h 35m
Mon 16/1119:40 -
2 stops22h 00m
Deal found 3/9£858
Sun 22/1113:15 -
2 stops42h 30m
Sun 29/1110:00 -
2 stops45h 49m
Deal found 31/8£859

Find flight deals from Ontario to Gatwick

Round-trip from

£668

One-way from

£219

Popular in

June

Cheapest in

February

Average price

£556
American Airlines
  • American Airlines
  • 14/10-21/10
  • 4 total stops
  • 50h 24m total
  • Ontario to London
Search Deals
2/10-31/12
  • 2/10-31/12
  • 2 total stops
  • 29h 36m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£115 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 29/9

22:39-22:30

2 stops39h 51m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£491

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 18/10

23:05-16:40

2 stops33h 35m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£499

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 22/9

22:39-22:30

2 stops39h 51m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£501

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 13/10

23:05-22:30

2 stops39h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£523

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 16/10

23:05-22:25

2 stops39h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£523

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 2/10

22:39-22:25

2 stops39h 46m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£526

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 18/9

22:39-22:25

2 stops39h 46m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£526

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 29/12

08:50-10:55

2 stops18h 05m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£532
Fastest return journey

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 17/1

10:05-10:55

2 stops16h 50m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£532

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Sun 27/9

22:39-22:25

2 stops39h 46m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£534

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 22 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

Related info for your journey

  • 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
Hayes
Croydon
Colchester
Eastbourne
Brentford
Barnet
Southall
Southend-on-Sea
Enfield
Kingston upon Thames
Watford
Dover
Ipswich

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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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