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Cheap flights from Ontario to London Gatwick Airport from £189

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LGW
5 Sep — 12 Sep1
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 6 August 2026.

Sun 13/919:40 -
Nonstop7h 15m
Tue 22/909:40 -
Nonstop8h 00m
Deal found 3/8£339
Tue 15/919:40 -
Nonstop7h 15m
Fri 25/909:40 -
Nonstop8h 00m
Deal found 5/8£354
Sun 13/919:40 -
Nonstop7h 15m
Sun 20/909:40 -
Nonstop8h 00m
Deal found 4/8£356
Tue 8/919:40 -
Nonstop7h 15m
Fri 18/909:40 -
Nonstop8h 00m
Deal found 3/8£358
Sun 20/919:40 -
Nonstop7h 15m
Sat 10/1009:40 -
1 stop15h 20m
Deal found 5/8£359
Fri 6/1120:30 -
1 stop12h 15m
Fri 13/1117:20 -
1 stop25h 05m
Deal found 3/8£389
Sat 21/1118:30 -
1 stop23h 40m
Sat 28/1109:25 -
1 stop32h 05m
Deal found 4/8£392
Tue 15/917:55 -
1 stop12h 45m
Tue 22/906:00 -
2 stops24h 51m
Deal found 1/8£394
Thu 24/922:05 -
Nonstop6h 45m
Fri 2/1011:35 -
Nonstop7h 40m
Deal found 5/8£394
Thu 10/923:40 -
1 stop30h 55m
Thu 17/906:00 -
1 stop15h 05m
Deal found 1/8£397
Fri 18/922:05 -
Nonstop6h 45m
Fri 25/911:35 -
Nonstop7h 40m
Deal found 2/8£398
Wed 16/920:35 -
1 stop30h 20m
Wed 23/911:35 -
Nonstop7h 40m
Deal found 2/8£399

Find flight deals from Ontario to Gatwick

Keep the following information in mind while searching for Ontario to Gatwick flight deals. Data was last updated 6 August 2026.

Round-trip from

£339

One-way from

£189

Popular in

December

Cheapest in

February

Average price

£620

Good round-trip deal

£412 or less

Good one-way deal

£231 or less
Air Transat
  • Air Transat
  • 13/9-22/9
  • Nonstop
  • 15h 15m total
  • Ontario to London
Search Deals
Air Transat
  • Air Transat
  • 6/9
  • Nonstop
  • 7h 15m total
  • Ontario to London
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Ontario to London Gatwick.
Search Deals
Price to beat on a one-way flight from Ontario to London Gatwick.
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 6 August 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
Fastest return journey

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Tue 8/9

19:40-07:55

Nonstop7h 15m

London Gatwick

Fri 18/9

09:40-12:40

Nonstop8h 00m

£362

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 21/11

18:30-23:10

1 stop23h 40m

London Gatwick

Sat 28/11

09:25-12:30

1 stop32h 05m

£392

TorontoLondon

YTZ Toronto Island - LGW London Gatwick

YTZLGW

Toronto Island

Mon 14/9

20:45-07:55

1 stop30h 10m

London Gatwick

Fri 18/9

09:40-16:30

1 stop11h 50m

£411

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 14/9

23:40-23:55

1 stop19h 15m

London Gatwick

Mon 21/9

06:00-16:05

1 stop15h 05m

£411

OttawaLondon

YOW Ottawa - LGW London Gatwick

YOWLGW

Ottawa

Sat 10/10

08:40-07:55

1 stop18h 15m

London Gatwick

Wed 14/10

12:40-00:25

1 stop16h 45m

£438

HamiltonLondon

YHM Hamilton - LGW London Gatwick

YHMLGW

Hamilton

Fri 4/9

15:45-09:25

2 stops12h 40m

London Gatwick

Thu 24/9

06:00-22:25

3 stops21h 25m

£452

TorontoLondon

YTZ Toronto Island - LGW London Gatwick

YTZLGW

Toronto Island

Thu 3/9

20:55-09:50

1 stop31h 55m

London Gatwick

Thu 10/9

11:35-20:11

1 stop13h 36m

£455

TorontoLondon

YKF Toronto Region of Waterloo Intl - LGW London Gatwick

YKFLGW

Toronto Region of Waterloo Intl

Mon 14/9

15:50-09:25

2 stops12h 35m

London Gatwick

Tue 22/9

06:00-18:20

2 stops17h 20m

£455

TorontoLondon

YTZ Toronto Island - LGW London Gatwick

YTZLGW

Toronto Island

Thu 10/9

10:00-09:50

1 stop18h 50m

London Gatwick

Mon 14/9

11:35-20:11

1 stop13h 36m

£457

HamiltonLondon

YHM Hamilton - LGW London Gatwick

YHMLGW

Hamilton

Thu 3/9

15:45-09:25

2 stops12h 40m

London Gatwick

Thu 17/9

06:00-22:25

3 stops21h 25m

£460

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 60 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.

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 Region of Ontario to London Gatwick Airport?

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to London Gatwick Airport (average of £400). Flying from Region of Ontario to London Gatwick Airport in December is currently the most expensive (average of £683). 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.

What is the cheapest time of day to fly from ON to LGW?

Find hourly flight availability from Ontario to Gatwick. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 August 2026.

When flying from Region of Ontario to London Gatwick Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Region of Ontario to London Gatwick Airport?

Airfare is below average for this route at the moment.
Region of Ontario to London Gatwick Airport flights typically cost between £518 and £709 in September.
The cheapest return price found within the last 5 days was £401 on Air Transat (21 Sept–28 Sept).

How far ahead should I book a flight from Region of Ontario to London Gatwick Airport?

The price you pay for your flight from Region of Ontario to London Gatwick Airport may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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.

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

    There are many flights that can get you from Region of Ontario to London Gatwick Airport in 7h 15m. Fly via Air Transat, Porter Airlines, or KLM to get the fastest option. The distance between Region of Ontario and London Gatwick Airport is about 3340 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Region of Ontario to London Gatwick Airport?

    The most popular route from Region of Ontario to London Gatwick Airport is Toronto Pearson Intl - London Gatwick. You may also consider Toronto Island - London Gatwick or Montreal Pierre Elliott Trudeau Intl - London Gatwick.

  • What are the cheapest flights from Region of Ontario to London Gatwick Airport?

    On average you can expect to pay £777 for a flight from Region of Ontario to London Gatwick Airport. The cheapest flight overall is £209 while the most popular route, (Toronto Pearson Intl - London Gatwick) is currently priced at £305.

  • 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 Region of Ontario to London Gatwick Airport?

    Currently, February is the cheapest month in which you can book a flight from Region of Ontario to London Gatwick Airport (average of £400). Flying from Region of Ontario to London Gatwick Airport in December is currently the most expensive (average of £683). 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
Hounslow
Milton Keynes
Gatwick
Luton
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Dover
Romford
Borehamwood

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Top airline flying from Ontario to Gatwick

Discover the top airline that operate flights from Ontario to Gatwick. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£387Average£513FlexibilityNo cancel feeOn-time50%
Search Air Transat flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Gatwick. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Gatwick?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Gatwick from Ontario.

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

Need flexible booking options for your flight to Gatwick from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Ontario to Gatwick flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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