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Cheap flights from Ontario to London Gatwick Airport from £249

ONT — LGW
20 Oct — 27 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

Sat 24/1006:15 -
2 stops24h 25m
Sat 31/1011:55 -
2 stops18h 56m
Deal found 20/9£511
Wed 28/1006:25 -
2 stops21h 30m
Wed 4/1111:55 -
2 stops19h 56m
Deal found 18/9£512
Tue 10/1106:25 -
2 stops20h 30m
Mon 16/1111:55 -
3 stops29h 45m
Deal found 19/9£542
Mon 26/1006:15 -
2 stops21h 40m
Fri 30/1011:55 -
2 stops18h 56m
Deal found 19/9£555
Sun 27/907:05 -
2 stops18h 20m
Fri 23/1010:25 -
2 stops20h 18m
Deal found 16/9£565
Tue 27/1006:25 -
2 stops21h 30m
Mon 2/1111:55 -
2 stops19h 56m
Deal found 19/9£627
Sun 25/1006:15 -
2 stops24h 25m
Fri 30/1011:55 -
2 stops18h 56m
Deal found 20/9£647
Mon 26/1006:15 -
2 stops21h 40m
Mon 2/1111:55 -
2 stops19h 56m
Deal found 17/9£649
Sun 1/1106:25 -
2 stops20h 30m
Sun 8/1111:55 -
2 stops19h 56m
Deal found 17/9£678

Find flight deals from Ontario to Gatwick

Round-trip from

£512

One-way from

£249

Popular in

June

Cheapest in

February

Average price

£682
28/10-4/11
  • 28/10-4/11
  • 4 total stops
  • 41h 26m total
  • Ontario to London
Search Deals
Air France
  • Air France
  • 20/1-31/12
  • 2 total stops
  • 18h 00m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£102 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 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

Sat 7/11

06:25-10:55

3 stops20h 30m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£360

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Wed 21/10

14:13-22:30

2 stops24h 17m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£549

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 20/10

14:13-22:25

2 stops24h 12m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£550

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Wed 7/10

14:13-22:30

2 stops24h 17m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£551

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Wed 2/12

13:55-22:35

2 stops24h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£558

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 25/12

06:00-10:55

2 stops20h 55m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£570
Fastest return journey

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Wed 16/12

10:05-10:55

2 stops16h 50m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£643

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 15/12

10:05-10:55

2 stops16h 50m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£643

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Fri 25/12

10:05-10:55

2 stops16h 50m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£681

OntarioLondon

ONT Ontario - LGW London Gatwick

ONTLGW

Ontario

Tue 29/9

08:25-20:00

2 stops27h 35m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£723

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 23 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.

  • How long is the flight from Ontario to London Gatwick Airport?

    Delta and British Airways can get you from Ontario to London Gatwick Airport in just under 19h 25m. Your travel time can differ by up to 5h 05m. There are 5430 mi between Ontario and London Gatwick Airport. Both multi-stop and direct flights can be found to your destination and back.

  • 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
Luton
Milton Keynes
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Southall
Watford
Kingston upon Thames
Dagenham
Dover

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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