HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Gatwick

$298+ Cheap flights from Ontario (ONT) to Gatwick (LGW)

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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Gatwick with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Gatwick

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 February 28, 2026.

This Delta deal was found by Cheapflights users on 2/25. 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.
Wed 4/152:20 pm
ONT
-
LGW
2 stops17h 40m
Delta
Tue 5/510:35 am
LGW
-
ONT
2 stops18h 25m
Delta
Deal found 2/25$687
This Delta deal was found by Cheapflights users on 2/27. 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.
Tue 3/3111:59 am
ONT
-
LGW
2 stops20h 01m
Delta
Tue 5/510:35 am
LGW
-
ONT
2 stops20h 02m
Delta
Deal found 2/27$707
This Delta deal was found by Cheapflights users on 2/27. 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 3/3011:59 am
ONT
-
LGW
2 stops20h 01m
Delta
Wed 4/2910:25 am
LGW
-
ONT
2 stops20h 12m
Delta
Deal found 2/27$757
This Delta deal was found by Cheapflights users on 2/27. 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.
Tue 3/3111:59 am
ONT
-
LGW
2 stops20h 01m
Delta
Thu 4/3010:25 am
LGW
-
ONT
2 stops18h 35m
Delta
Deal found 2/27$758
This American Airlines deal was found by Cheapflights users on 2/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:00 am
ONT
-
LGW
2 stops18h 40m
American Airlines
Sat 4/1112:20 pm
LGW
-
ONT
2 stops19h 26m
American Airlines
Deal found 2/27$791
This Delta deal was found by Cheapflights users on 2/27. 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.
Thu 4/232:20 pm
ONT
-
LGW
2 stops17h 40m
Delta
Mon 5/410:25 am
LGW
-
ONT
2 stops18h 35m
Delta
Deal found 2/27$807
This Air France deal was found by Cheapflights users on 2/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:00 am
ONT
-
LGW
2 stops25h 00m
Air France
Sun 8/2310:25 am
LGW
-
ONT
2 stops37h 49m
Air France
Deal found 2/27$850
This Orbitz deal was found by Cheapflights users on 2/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:00 pm
ONT
-
LGW
2 stops18h 40m
Multiple Airlines
Mon 10/123:40 pm
LGW
-
ONT
2 stops27h 29m
Multiple Airlines
Deal found 2/27$1,041
This Orbitz deal was found by Cheapflights users on 2/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:26 pm
ONT
-
LGW
2 stops36h 19m
Multiple Airlines
Mon 5/113:40 pm
LGW
-
ONT
2 stops26h 05m
Multiple Airlines
Deal found 2/26$1,053
This Expedia deal was found by Cheapflights users on 2/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:03 am
ONT
-
LGW
2 stops16h 52m
Multiple Airlines
Sun 11/811:55 am
LGW
-
ONT
2 stops20h 04m
Multiple Airlines
Deal found 2/27$1,054

Find flight deals from Ontario to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Gatwick (LGW). 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 February 28, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$687
(Delta)

One-way from

$298
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$657
Provider with most accurate pricing for Ontario-London Gatwick flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-London Gatwick flights.
Search Deals
From Ontario to London Gatwick
Search Deals
One-way flight from Ontario to London Gatwick
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated February 28, 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

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 4/15

2:20 pm-4:00 pm

2 stops17h 40m

London Gatwick

Tue 5/5

10:35 am-9:00 pm

2 stops18h 25m

$687

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 3/30

11:59 am-4:00 pm

2 stops20h 01m

London Gatwick

Wed 4/29

10:25 am-10:37 pm

2 stops20h 12m

$757

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 4/1

6:00 am-4:00 pm

2 stops26h 00m

London Gatwick

Tue 5/5

10:35 am-10:37 pm

2 stops20h 02m

$757

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 4/23

2:20 pm-4:00 pm

2 stops17h 40m

London Gatwick

Mon 5/4

10:25 am-9:00 pm

2 stops18h 35m

$837

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 4/15

10:33 am-10:25 pm

2 stops27h 52m

London Gatwick

Tue 5/5

7:00 am-9:45 am

2 stops34h 45m

$1,065

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 6/9

2:00 pm-4:00 pm

2 stops18h 00m

London Gatwick

Mon 6/15

10:25 am-10:40 pm

2 stops20h 15m

$1,142

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 5/1

10:39 am-10:25 pm

2 stops27h 46m

London Gatwick

Mon 5/11

7:00 am-9:45 am

2 stops34h 45m

$1,279

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 5/22

10:00 pm-10:25 pm

2 stops40h 25m

London Gatwick

Mon 6/1

2:05 pm-8:45 pm

2 stops62h 40m

$1,518

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 5/22

7:05 am-9:25 am

2 stops18h 20m

London Gatwick

Mon 6/1

10:25 am-10:32 pm

2 stops20h 07m

$1,567

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 7/7

11:59 pm-8:00 pm

2 stops36h 01m

London Gatwick

Thu 7/23

8:40 pm-7:52 pm

2 stops31h 12m

$1,616

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
  • Most accurate provider: When it comes to deals on Ontario-London Gatwick Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Ontario-London Gatwick Airport flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Ontario-London Gatwick Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-London Gatwick Airport flights, Cheapflights users trust Ovago the most. Ovago 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 Ontario-London Gatwick Airport 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 Ontario to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Ontario 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 Ontario to London Gatwick Airport

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

Currently, October is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of $222). Flying from Ontario to London Gatwick Airport in February is currently the most expensive (average of $710). 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 Ontario to Gatwick. 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 from for flights from Ontario to London Gatwick?

    For a flight from Ontario to London Gatwick, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to London Gatwick per day. 0 airlines have flights to London Gatwick from Ontario on a regular basis.

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

    Airlines like Delta fly from Ontario to London Gatwick Airport in about 17h 40m. The time it takes to get you to your destination can typically vary by up to . Ontario and London Gatwick Airport are separated by a distance of 5430 mi.

  • 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 vacation 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 Ontario to London Gatwick Airport?

    Currently, October is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of $222). Flying from Ontario to London Gatwick Airport in February is currently the most expensive (average of $710). 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

Traveling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Kingston upon Thames
Eastbourne
Sutton
Slough

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights