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$488+ Cheap flights from Gatwick (LGW) to Ontario (ONT)

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ONT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap 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 October 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$664
(American Airlines)

One-way from

$488
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$650
Provider with most accurate pricing for London Gatwick-Ontario flight deals.
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Provider most trusted by Cheapflights users for London Gatwick-Ontario flights.
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From London Gatwick to Ontario
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One-way flight from London Gatwick to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Gatwick to Ontario

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 October 29, 2025.

This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:30 pmLGW - ONT
2 stops31h 33mAmerican Airlines
Tue 12/26:11 amONT - LGW
2 stops17h 19mAmerican Airlines
Deal found 10/28$664
This Booking.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:40 pmLGW - ONT
2 stops26h 15mBritish Airways
Tue 12/910:47 amONT - LGW
2 stops24h 13mBritish Airways
Deal found 10/27$753
This Iberia deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:40 pmLGW - ONT
2 stops34h 49mIberia
Tue 11/256:10 amONT - LGW
2 stops28h 50mIberia
Deal found 10/28$769
This Iberia deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:45 amLGW - ONT
2 stops42h 44mIberia
Tue 11/2510:47 amONT - LGW
2 stops24h 13mIberia
Deal found 10/28$780
This Iberia deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:40 pmLGW - ONT
2 stops24h 13mIberia
Tue 11/257:00 amONT - LGW
2 stops28h 00mIberia
Deal found 10/28$783
This Iberia deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2311:45 amLGW - ONT
2 stops54h 12mIberia
Mon 12/110:47 amONT - LGW
2 stops40h 03mIberia
Deal found 10/29$793
This Iberia deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:45 amLGW - ONT
2 stops42h 44mIberia
Wed 11/197:00 amONT - LGW
2 stops28h 00mIberia
Deal found 10/28$801
This Iberia deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:45 amLGW - ONT
2 stops44h 12mIberia
Wed 11/2610:47 amONT - LGW
2 stops40h 03mIberia
Deal found 10/29$805
This Iberia deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:45 amLGW - ONT
2 stops44h 12mIberia
Fri 11/287:00 amONT - LGW
2 stops28h 00mIberia
Deal found 10/29$809
This Iberia deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:45 amLGW - ONT
2 stops42h 38mIberia
Tue 11/2510:47 amONT - LGW
2 stops24h 13mIberia
Deal found 10/29$810
This Iberia deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:45 amLGW - ONT
2 stops30h 12mIberia
Sun 11/307:00 amONT - LGW
2 stops28h 00mIberia
Deal found 10/29$811

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Ontario that are best for you.

Fly from

Gatwick

Fly to

Ontario

Route

Depart

Return

Price

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 2/26

11:20 am-6:40 pm

2 stops39h 20m

Ontario

Mon 3/2

7:50 pm-7:30 am

2 stops27h 40m

$664

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 12/5

7:40 pm-1:55 pm

2 stops26h 15m

Ontario

Tue 12/9

10:47 am-7:00 pm

2 stops24h 13m

$753

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 11/13

7:40 pm-10:29 pm

2 stops34h 49m

Ontario

Tue 11/25

6:10 am-7:00 pm

2 stops28h 50m

$769

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 11/24

11:45 am-11:53 am

2 stops32h 08m

Ontario

Mon 12/1

10:47 am-10:50 am

2 stops40h 03m

$783

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Sun 11/23

11:45 am-9:57 am

2 stops54h 12m

Ontario

Mon 12/1

10:47 am-10:50 am

2 stops40h 03m

$793

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 11/13

11:45 am-10:29 pm

2 stops42h 44m

Ontario

Wed 11/19

7:00 am-7:00 pm

2 stops28h 00m

$801

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 11/21

11:45 am-11:57 pm

2 stops44h 12m

Ontario

Wed 11/26

10:47 am-10:50 am

2 stops40h 03m

$805

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 11/21

11:45 am-11:57 pm

2 stops44h 12m

Ontario

Fri 11/28

7:00 am-7:00 pm

2 stops28h 00m

$809

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 11/24

11:45 am-9:57 am

2 stops30h 12m

Ontario

Sun 11/30

7:00 am-7:00 pm

2 stops28h 00m

$811

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 11/12

7:40 pm-11:53 am

2 stops24h 13m

Ontario

Wed 11/19

10:47 am-7:00 pm

2 stops24h 13m

$815

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 22 results
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  • Most accurate provider: When it comes to deals on London Gatwick Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Gatwick Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Gatwick Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Gatwick Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Gatwick Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 London Gatwick Airport to Ontario

What is the cheapest month to book a flight from London Gatwick Airport to Ontario?

Currently, September is the cheapest month in which you can book a flight from London Gatwick Airport to Ontario (average of $320). Flying from London Gatwick Airport to Ontario in December is currently the most expensive (average of $597). 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.

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?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from London Gatwick to Ontario. 0 airlines have flights to Ontario from London Gatwick on a regular basis. Booking flights from London Gatwick to Ontario should not be difficult; the airport handles an average of 0 inbound flights from London Gatwick per day.

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

    Airlines like American Airlines, British Airways, and Iberia fly from London Gatwick Airport to Ontario in about 26h 15m. The time it takes to get you to your destination can typically vary by up to 13h 05m. London Gatwick Airport and Ontario are separated by 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 vacation 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.

  • What is the cheapest month to book a flight from London Gatwick Airport to Ontario?

    Currently, September is the cheapest month in which you can book a flight from London Gatwick Airport to Ontario (average of $320). Flying from London Gatwick Airport to Ontario in December is currently the most expensive (average of $597). 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

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