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Cheap flights from London Gatwick Airport to Ontario from £291

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ONT
12 Sep — 19 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Ontario
Explore the most affordable flight options available from Gatwick to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 August 2026.

Mon 7/1210:00 -
2 stops21h 00m
Sat 23/107:00 -
2 stops24h 45m
Deal found 8/8£460
Wed 25/1110:00 -
2 stops21h 00m
Wed 9/1212:22 -
2 stops19h 23m
Deal found 9/8£461
Thu 10/910:25 -
2 stops20h 15m
Sun 20/907:05 -
2 stops18h 20m
Deal found 10/8£463
Mon 23/1110:00 -
2 stops21h 00m
Mon 7/1212:22 -
2 stops19h 23m
Deal found 9/8£475
Wed 9/1219:40 -
2 stops22h 14m
Wed 13/110:58 -
2 stops24h 02m
Deal found 8/8£516
Sun 6/1219:40 -
2 stops34h 39m
Wed 20/110:58 -
2 stops24h 02m
Deal found 8/8£524
Thu 20/810:25 -
2 stops20h 20m
Sun 27/906:00 -
2 stops19h 25m
Deal found 10/8£577
Tue 8/911:30 -
2 stops19h 29m
Tue 29/914:22 -
2 stops21h 38m
Deal found 11/8£581
Mon 9/1111:45 -
2 stops29h 55m
Mon 30/1107:00 -
2 stops19h 50m
Deal found 10/8£602
Sun 30/811:30 -
2 stops19h 29m
Fri 11/912:37 -
2 stops23h 23m
Deal found 11/8£616
Fri 11/911:30 -
2 stops40h 37m
Wed 16/908:25 -
2 stops42h 25m
Deal found 13/8£672
Mon 7/1219:40 -
2 stops22h 14m
Mon 11/110:58 -
2 stops39h 52m
Deal found 8/8£712

Find flight deals from Gatwick to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Ontario (ONT). 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 13 August 2026.

Round-trip from

£460

One-way from

£291

Popular in

December

Cheapest in

February

Average price

£529
Delta
  • Delta
  • 7/12-23/1
  • 4 total stops
  • 45h 45m total
  • London to Ontario
Search Deals
2/9
  • 2/9
  • 2 total stops
  • 28h 04m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to Ontario 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 13 August 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Wed 9/12

10:00-23:00

2 stops21h 00m

Ontario

Sat 23/1

07:00-15:45

2 stops24h 45m

£460

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Mon 7/12

10:00-23:00

2 stops21h 00m

Ontario

Tue 19/1

07:00-09:00

2 stops18h 00m

£460

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Mon 7/12

10:00-23:00

2 stops21h 00m

Ontario

Sun 17/1

07:00-09:00

2 stops18h 00m

£460

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Fri 11/12

10:00-23:00

2 stops21h 00m

Ontario

Sun 17/1

07:00-09:00

2 stops18h 00m

£460

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Mon 23/11

10:00-23:00

2 stops21h 00m

Ontario

Mon 7/12

12:22-15:45

2 stops19h 23m

£475

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Mon 8/2

11:55-22:39

2 stops18h 44m

Ontario

Sun 14/2

10:05-10:55

2 stops16h 50m

£866
Fastest return journey

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 10/9

13:00-23:24

2 stops18h 24m

Ontario

Wed 23/9

15:14-14:40

2 stops15h 26m

£889
Cheapest one-way

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Tue 15/9

15:40-22:05

2 stops38h 25m

£703

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 24/9

11:30-23:36

2 stops20h 06m

£730

LondonOntario

LGW London Gatwick - ONT Ontario

LGWONT

London Gatwick

Thu 1/10

15:40-22:15

2 stops38h 35m

£734

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Gatwick to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Gatwick 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 Gatwick to Ontario. 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 into for flights to Ontario from London Gatwick?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from London Gatwick. Booking flights from London Gatwick to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from London Gatwick from 0 different airlines.

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

    Departing from London Gatwick Airport to Ontario will take you 21h. Airlines will cover a distance of 5430 mi.

  • Can I find deals for flights from Gatwick to Ontario that include hotel bookings?

    Yes. In addition to deals on Gatwick to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Ontario.

  • Can I find deals for business class flights from Gatwick to Ontario?

    Yes. Cheapflights offers flight deals from Gatwick to Ontario 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

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Alternative routes for Gatwick to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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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 Gatwick to Ontario?

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

Millions of users choose and trust Cheapflights to book the best flight deals from Gatwick to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Ontario from Gatwick? 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 Gatwick to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Gatwick to Ontario 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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