HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Gatwick

$379+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
Mai 31 — Jun 71
So 5/31
So 6/7
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 Mai 1, 2026.

This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 10/257:00 am
ONT
-
LGW
2 stops25h 45m
Delta
So 11/110:00 am
LGW
-
ONT
2 stops20h 43m
Delta
Deal found 4/28$958
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 7/287:05 am
ONT
-
LGW
2 stops18h 20m
Delta
Sa 8/2210:25 am
LGW
-
ONT
2 stops20h 15m
Delta
Deal found 4/29$1,008
This Icelandair deal was found by Cheapflights users on 4/27. 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.
Mi 9/1610:55 am
ONT
-
LGW
2 stops19h 45m
Multiple Airlines
Mi 9/303:40 pm
LGW
-
ONT
2 stops38h 55m
Multiple Airlines
Deal found 4/27$1,098
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 5/181:35 pm
ONT
-
LGW
2 stops18h 25m
Delta
Fr 10/910:25 am
LGW
-
ONT
2 stops20h 18m
Delta
Deal found 4/28$1,100
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 11/57:00 am
ONT
-
LGW
2 stops18h 00m
Delta
So 11/810:00 am
LGW
-
ONT
2 stops20h 14m
Delta
Deal found 4/29$1,108
This Icelandair deal was found by Cheapflights users on 4/26. 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.
Di 10/139:15 am
ONT
-
LGW
2 stops21h 25m
Multiple Airlines
Di 10/203:40 pm
LGW
-
ONT
2 stops38h 59m
Multiple Airlines
Deal found 4/26$1,124
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 9/37:00 am
ONT
-
LGW
2 stops18h 25m
Delta
Fr 9/1110:25 am
LGW
-
ONT
2 stops20h 15m
Delta
Deal found 4/29$1,129
This Icelandair deal was found by Cheapflights users on 4/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/303:12 pm
ONT
-
LGW
2 stops15h 28m
Icelandair
Mi 10/2811:55 am
LGW
-
ONT
2 stops17h 44m
Icelandair
Deal found 4/29$1,130
This Icelandair deal was found by Cheapflights users on 4/27. 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.
Mi 10/712:00 pm
ONT
-
LGW
2 stops18h 40m
Icelandair
Mo 10/193:40 pm
LGW
-
ONT
2 stops38h 59m
Icelandair
Deal found 4/27$1,131
This Icelandair deal was found by Cheapflights users on 4/26. 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.
Mo 9/213:12 pm
ONT
-
LGW
2 stops15h 28m
Icelandair
Mo 10/123:40 pm
LGW
-
ONT
2 stops38h 59m
Icelandair
Deal found 4/26$1,134
This Icelandair deal was found by Cheapflights users on 4/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 10/1612:00 pm
ONT
-
LGW
2 stops18h 40m
Icelandair
Do 10/2911:55 am
LGW
-
ONT
2 stops17h 44m
Icelandair
Deal found 4/29$1,180

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 Mai 1, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$958
(Delta)

One-way from

$379
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$735
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 ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 Mai 1, 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

Mi 9/16

10:55 am-2:40 pm

2 stops19h 45m

London Gatwick

Mi 9/30

3:40 pm-10:35 pm

2 stops38h 55m

$1,098

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mo 5/18

1:35 pm-4:00 pm

2 stops18h 25m

London Gatwick

Do 10/8

10:25 am-10:43 pm

2 stops20h 18m

$1,100

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mo 5/18

1:35 pm-4:00 pm

2 stops18h 25m

London Gatwick

Fr 10/9

10:25 am-10:43 pm

2 stops20h 18m

$1,100

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mo 5/18

1:35 pm-4:00 pm

2 stops18h 25m

London Gatwick

Mi 10/7

10:25 am-10:43 pm

2 stops20h 18m

$1,100

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mi 10/21

12:00 pm-2:40 pm

2 stops18h 40m

London Gatwick

Do 10/29

11:55 am-10:39 pm

2 stops17h 44m

$1,130

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mi 10/7

12:00 pm-2:40 pm

2 stops18h 40m

London Gatwick

Mo 10/19

3:40 pm-10:39 pm

2 stops38h 59m

$1,131

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Do 10/1

3:12 pm-2:40 pm

2 stops15h 28m

London Gatwick

Mo 10/12

3:40 pm-10:39 pm

2 stops38h 59m

$1,182
Quickest round-trip

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Do 8/20

3:05 pm-2:40 pm

2 stops15h 35m

London Gatwick

Di 8/25

1:00 pm-10:00 pm

2 stops17h 00m

$1,252

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fr 8/7

11:50 pm-10:25 pm

2 stops38h 35m

London Gatwick

Fr 8/14

5:35 pm-11:11 pm

2 stops37h 36m

$1,354

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fr 7/10

11:50 pm-9:55 am

2 stops50h 05m

London Gatwick

Mi 8/5

5:35 pm-8:36 pm

2 stops35h 01m

$1,468

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 23 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 >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 Icelandair fly from Ontario to London Gatwick Airport in about 18h 25m. The time it takes to get you to your destination can typically vary by up to 15m. 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
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton
Stansted

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