HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Gatwick

$341+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
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 July 27, 2026.

This Delta deal was found by Cheapflights users on 7/25. 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.
Sun 11/2211:10 pm
ONT
-
LGW
2 stops25h 50m
Delta
Fri 11/2710:00 am
LGW
-
ONT
2 stops33h 17m
Delta
Deal found 7/25$881
This Delta deal was found by Cheapflights users on 7/24. 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 12/296:00 am
ONT
-
LGW
2 stops25h 45m
Delta
Fri 1/810:00 am
LGW
-
ONT
2 stops20h 43m
Delta
Deal found 7/24$906
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2910:59 pm
ONT
-
LGW
2 stops32h 46m
Delta
Wed 1/610:00 am
LGW
-
ONT
2 stops38h 12m
Delta
Deal found 7/26$918
This Delta deal was found by Cheapflights users on 7/22. 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 9/16:20 am
ONT
-
LGW
2 stops19h 05m
Delta
Wed 9/1610:25 am
LGW
-
ONT
2 stops20h 15m
Delta
Deal found 7/22$951
This KLM deal was found by Cheapflights users on 7/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:24 pm
ONT
-
LGW
2 stops19h 21m
Multiple Airlines
Sun 11/810:00 am
LGW
-
ONT
2 stops19h 54m
Multiple Airlines
Deal found 7/26$965
This Iberia deal was found by Cheapflights users on 7/26. 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.
Tue 8/252:27 pm
ONT
-
LGW
2 stops21h 33m
Iberia
Tue 9/111:30 am
LGW
-
ONT
2 stops19h 29m
Iberia
Deal found 7/26$986
This Icelandair deal was found by Cheapflights users on 7/26. 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 8/2510:55 am
ONT
-
LGW
2 stops19h 45m
Multiple Airlines
Tue 9/11:00 pm
LGW
-
ONT
2 stops17h 00m
Multiple Airlines
Deal found 7/26$992
This Delta deal was found by Cheapflights users on 7/23. 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 8/206:20 am
ONT
-
LGW
2 stops19h 05m
Delta
Wed 8/2610:25 am
LGW
-
ONT
2 stops20h 20m
Delta
Deal found 7/23$1,001
This Icelandair deal was found by Cheapflights users on 7/24. 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 8/191:50 pm
ONT
-
LGW
2 stops16h 50m
Multiple Airlines
Tue 8/251:00 pm
LGW
-
ONT
2 stops17h 00m
Multiple Airlines
Deal found 7/24$1,003
This Icelandair deal was found by Cheapflights users on 7/22. 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.
Sat 12/511:20 am
ONT
-
LGW
2 stops15h 35m
Multiple Airlines
Fri 12/1111:55 am
LGW
-
ONT
2 stops18h 45m
Multiple Airlines
Deal found 7/22$1,040
This Iberia deal was found by Cheapflights users on 7/24. 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.
Sat 8/222:43 pm
ONT
-
LGW
2 stops21h 17m
Iberia
Sat 8/2911:30 am
LGW
-
ONT
2 stops19h 29m
Iberia
Deal found 7/24$1,047

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 July 27, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$881
(Delta)

One-way from

$341
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,049
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. 22% potential increase in price ($234 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 27, 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

Cheapest round-trip

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 8/20

6:20 am-9:25 am

2 stops19h 05m

London Gatwick

Tue 8/25

10:35 am-10:45 pm

2 stops20h 10m

$1,001

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 9/1

1:50 pm-2:40 pm

2 stops16h 50m

London Gatwick

Tue 9/8

3:40 pm-7:03 pm

2 stops35h 23m

$1,100

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 10/27

10:25 am-10:55 am

2 stops17h 30m

London Gatwick

Sun 11/1

11:55 am-10:40 pm

2 stops18h 45m

$1,134

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 9/15

9:10 pm-9:55 am

2 stops28h 45m

London Gatwick

Mon 9/21

7:05 am-8:13 pm

2 stops45h 08m

$1,163

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 9/14

9:10 pm-9:55 am

2 stops28h 45m

London Gatwick

Thu 9/24

5:35 pm-8:13 pm

2 stops34h 38m

$1,183

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 8/25

7:05 am-9:25 am

2 stops18h 20m

London Gatwick

Mon 9/7

10:25 am-9:52 pm

2 stops19h 27m

$1,212

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 9/6

6:17 am-9:25 am

2 stops19h 08m

London Gatwick

Sun 9/13

10:25 am-10:40 pm

2 stops20h 15m

$1,212

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 9/14

9:10 pm-9:55 am

2 stops28h 45m

London Gatwick

Thu 9/17

7:30 am-8:13 pm

2 stops44h 43m

$1,353
Quickest round-trip

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 12/1

10:05 am-10:55 am

2 stops16h 50m

London Gatwick

Mon 12/7

11:55 am-9:35 pm

2 stops17h 40m

$1,359

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 12/25

6:00 am-10:55 am

2 stops20h 55m

London Gatwick

Fri 1/8

11:55 am-10:39 pm

2 stops18h 44m

$1,396

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Ontario to Gatwick

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Gatwick in July.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 >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.

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 and Turkish Airlines fly from Ontario to London Gatwick Airport in about 19h 05m. The time it takes to get you to your destination can typically vary by up to 9h 40m. Ontario and London Gatwick Airport are separated by a distance of 5430 mi. This flight may include one or multiple stops.

  • 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.

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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow

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.