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$355+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ONT
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap 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 January 28, 2026.

This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:25 am
LGW
-
ONT
2 stops20h 12m
Delta
Sat 5/92:00 pm
ONT
-
LGW
2 stops18h 00m
Delta
Deal found 1/27$540
This Iberia deal was found by Cheapflights users on 1/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/17:40 pm
LGW
-
ONT
2 stops35h 08m
Iberia
Tue 2/106:00 am
ONT
-
LGW
2 stops20h 50m
Iberia
Deal found 1/27$763
This Iberia deal was found by Cheapflights users on 1/26. 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 6/411:30 am
LGW
-
ONT
2 stops20h 29m
Iberia
Wed 6/102:22 pm
ONT
-
LGW
2 stops21h 38m
Iberia
Deal found 1/26$792
This Iberia deal was found by Cheapflights users on 1/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/111:45 am
LGW
-
ONT
2 stops43h 03m
Iberia
Wed 2/117:16 am
ONT
-
LGW
2 stops27h 44m
Iberia
Deal found 1/27$942
This Icelandair deal was found by Cheapflights users on 1/27. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2511:55 am
LGW
-
ONT
2 stops17h 50m
Multiple Airlines
Mon 3/26:14 am
ONT
-
LGW
2 stops20h 41m
Multiple Airlines
Deal found 1/27$1,068
This Icelandair deal was found by Cheapflights users on 1/26. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:55 am
LGW
-
ONT
2 stops19h 37m
Multiple Airlines
Mon 3/26:14 am
ONT
-
LGW
2 stops20h 41m
Multiple Airlines
Deal found 1/26$1,075
This Icelandair deal was found by Cheapflights users on 1/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1911:55 am
LGW
-
ONT
2 stops19h 04m
Multiple Airlines
Wed 4/110:33 am
ONT
-
LGW
2 stops20h 07m
Multiple Airlines
Deal found 1/28$1,150
This Icelandair deal was found by Cheapflights users on 1/26. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:55 am
LGW
-
ONT
2 stops18h 25m
Multiple Airlines
Mon 3/1611:17 am
ONT
-
LGW
2 stops16h 38m
Multiple Airlines
Deal found 1/26$1,212
This Icelandair deal was found by Cheapflights users on 1/26. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:00 pm
LGW
-
ONT
2 stops17h 39m
Multiple Airlines
Tue 9/112:00 pm
ONT
-
LGW
2 stops18h 40m
Multiple Airlines
Deal found 1/26$1,281
This Icelandair deal was found by Cheapflights users on 1/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2511:55 am
LGW
-
ONT
2 stops18h 49m
Multiple Airlines
Wed 3/1810:33 am
ONT
-
LGW
2 stops17h 22m
Multiple Airlines
Deal found 1/28$1,341
This Iberia deal was found by Cheapflights users on 1/26. 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 6/1811:30 am
LGW
-
ONT
2 stops20h 29m
Iberia
Sat 6/272:22 pm
ONT
-
LGW
2 stops21h 38m
Iberia
Deal found 1/26$1,379

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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$540
(Delta)

One-way from

$355
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$594
Provider with most accurate pricing for London Gatwick-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Gatwick-Ontario flights.
Search Deals
From London Gatwick to Ontario
Search Deals
One-way flight from London Gatwick to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 28, 2026.
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

Mon 4/27

10:25 am-10:37 pm

2 stops20h 12m

Ontario

Sat 5/9

2:00 pm-4:00 pm

2 stops18h 00m

$540

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 6/4

11:30 am-11:59 pm

2 stops20h 29m

Ontario

Wed 6/10

2:22 pm-8:00 pm

2 stops21h 38m

$792

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 2/25

11:55 am-9:45 pm

2 stops17h 50m

Ontario

Mon 3/2

6:14 am-10:55 am

2 stops20h 41m

$1,068

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 3/19

11:55 am-11:59 pm

2 stops19h 04m

Ontario

Wed 4/1

10:33 am-2:40 pm

2 stops20h 07m

$1,150

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 2/23

11:55 am-10:20 pm

2 stops18h 25m

Ontario

Mon 3/16

11:17 am-10:55 am

2 stops16h 38m

$1,212

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 2/25

11:55 am-10:44 pm

2 stops18h 49m

Ontario

Wed 3/18

10:33 am-10:55 am

2 stops17h 22m

$1,341

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 6/18

11:30 am-11:59 pm

2 stops20h 29m

Ontario

Sat 6/27

2:22 pm-8:00 pm

2 stops21h 38m

$1,379

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Wed 3/4

5:05 pm-11:32 pm

2 stops38h 27m

Ontario

Wed 3/18

10:33 am-10:35 pm

2 stops29h 02m

$1,407

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 3/13

5:55 am-11:08 am

2 stops36h 13m

Ontario

Fri 3/20

10:33 am-10:35 pm

2 stops29h 02m

$1,426

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 7/2

10:20 am-11:56 pm

2 stops21h 36m

Ontario

Fri 7/10

12:13 pm-2:40 pm

2 stops18h 27m

$1,486

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 22 results
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2
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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 $605). 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 Delta and Iberia fly from London Gatwick Airport to Ontario in about 20h 12m. The time it takes to get you to your destination can typically vary by up to 17m. 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 $605). 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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