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Cheap flights from London Gatwick Airport to Ontario from £392

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ONT
4 Jun — 11 Jun1
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 5 May 2026.

Mon 15/612:20
LGW
-
ONT
2 stops19h 39m
American Airlines
Mon 22/623:59
ONT
-
LGW
2 stops22h 36m
American Airlines
Deal found 1/5£482
Thu 18/612:20
LGW
-
ONT
2 stops19h 39m
American Airlines
Thu 25/605:45
ONT
-
LGW
2 stops20h 55m
American Airlines
Deal found 4/5£514
Thu 3/911:30
LGW
-
ONT
2 stops19h 28m
Multiple Airlines
Fri 25/912:35
ONT
-
LGW
2 stops23h 25m
Multiple Airlines
Deal found 4/5£537
Sun 14/610:45
LGW
-
ONT
2 stops21h 14m
British Airways
Sun 21/605:45
ONT
-
LGW
2 stops20h 55m
British Airways
Deal found 30/4£544
Mon 5/1011:30
LGW
-
ONT
2 stops41h 38m
Iberia
Wed 14/1010:25
ONT
-
LGW
2 stops40h 25m
Iberia
Deal found 2/5£729
Mon 15/620:40
LGW
-
ONT
2 stops35h 19m
Iberia
Thu 25/612:41
ONT
-
LGW
2 stops38h 09m
Iberia
Deal found 3/5£735
Mon 2/1111:45
LGW
-
ONT
2 stops32h 08m
Iberia
Mon 23/1110:47
ONT
-
LGW
2 stops24h 13m
Iberia
Deal found 4/5£775
Thu 29/1011:55
LGW
-
ONT
2 stops17h 44m
Multiple Airlines
Thu 19/1106:00
ONT
-
LGW
2 stops20h 55m
Multiple Airlines
Deal found 30/4£782
Thu 12/1111:55
LGW
-
ONT
2 stops18h 44m
Multiple Airlines
Mon 16/1106:00
ONT
-
LGW
2 stops20h 55m
Multiple Airlines
Deal found 30/4£828
Sat 2/510:20
LGW
-
ONT
2 stops20h 12m
Multiple Airlines
Sun 3/510:39
ONT
-
LGW
2 stops24h 11m
Multiple Airlines
Deal found 1/5£890
Thu 2/717:35
LGW
-
ONT
2 stops60h 26m
Turkish Airlines
Mon 6/723:50
ONT
-
LGW
2 stops50h 05m
Turkish Airlines
Deal found 4/5£982
Sun 14/610:20
LGW
-
ONT
2 stops21h 20m
Multiple Airlines
Sun 21/616:35
ONT
-
LGW
2 stops18h 15m
Multiple Airlines
Deal found 30/4£991

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 5 May 2026.

Round-trip from

£482

One-way from

£392

Popular in

December

Cheapest in

September

Average price

£453
American Airlines
  • American Airlines
  • 15/6-22/6
  • 4 total stops
  • 42h 15m total
  • London to Ontario
Search Deals
25/8
  • 25/8
  • 3 total stops
  • 59h 38m total
  • London to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 5 May 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 - ONT

LGWONT

London Gatwick

Sun 14/6

10:20-23:40

2 stops21h 20m

Ontario

Sun 21/6

16:35-18:50

2 stops18h 15m

£991

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Sat 31/10

11:55-22:39

2 stops17h 44m

Ontario

Sun 15/11

06:00-10:55

2 stops20h 55m

£1,036

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 5/6

07:25-20:47

2 stops45h 22m

Ontario

Wed 10/6

14:05-22:30

2 stops24h 25m

£1,092

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 23/6

07:25-23:11

2 stops23h 46m

Ontario

Fri 3/7

23:54-22:25

2 stops38h 31m

£1,107

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 18/6

10:25-22:41

2 stops20h 16m

Ontario

Thu 25/6

07:05-09:25

2 stops18h 20m

£1,146

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 1/6

10:50-20:47

2 stops41h 57m

Ontario

Mon 22/6

23:58-09:55

2 stops25h 57m

£1,153

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 4/6

17:35-20:47

2 stops35h 12m

Ontario

Tue 9/6

22:41-16:40

2 stops33h 59m

£1,201
Fastest return journey

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 16/7

13:00-22:35

2 stops17h 35m

Ontario

Thu 30/7

14:05-14:40

2 stops16h 35m

£1,201

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 5/6

15:40-19:02

2 stops35h 22m

Ontario

Tue 9/6

12:04-14:40

2 stops18h 36m

£1,233

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 1/6

17:35-20:47

2 stops35h 12m

Ontario

Sat 6/6

22:41-09:55

2 stops27h 14m

£1,244

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Showing 1-10 of 24 resultsSorted by cheapest first
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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 17h 44m. Airlines will cover a distance of 5430 mi. This flight may include one or multiple stops.

  • 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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