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Gatwick

$401+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
Jun 11 — Jun 181
Thu 6/11
Thu 6/18
1 adult, Economy
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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 May 12, 2026.

This Delta deal was found by Cheapflights users on 5/9. 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 8/37:05 am
ONT
-
LGW
2 stops18h 35m
Delta
Fri 8/2810:25 am
LGW
-
ONT
2 stops20h 20m
Delta
Deal found 5/9$909
This Delta deal was found by Cheapflights users on 5/11. 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 8/67:05 am
ONT
-
LGW
2 stops18h 20m
Delta
Wed 8/2610:25 am
LGW
-
ONT
2 stops20h 20m
Delta
Deal found 5/11$1,009
This Delta deal was found by Cheapflights users on 5/11. 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 9/237:00 am
ONT
-
LGW
2 stops18h 25m
Delta
Mon 9/2810:25 am
LGW
-
ONT
2 stops19h 31m
Delta
Deal found 5/11$1,059
This Icelandair deal was found by Cheapflights users on 5/9. 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 9/1510:55 am
ONT
-
LGW
2 stops19h 45m
Multiple Airlines
Wed 10/143:40 pm
LGW
-
ONT
2 stops38h 55m
Multiple Airlines
Deal found 5/9$1,125
This KAYAK deal was found by Cheapflights users on 5/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:14 pm
ONT
-
LGW
2 stops16h 26m
Icelandair
Mon 10/193:40 pm
LGW
-
ONT
2 stops40h 02m
Icelandair
Deal found 5/11$1,133
This Icelandair deal was found by Cheapflights users on 5/7. 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.
Fri 8/213:05 pm
ONT
-
LGW
2 stops15h 35m
Multiple Airlines
Tue 8/251:00 pm
LGW
-
ONT
2 stops17h 00m
Multiple Airlines
Deal found 5/7$1,226
This Turkish Airlines deal was found by Cheapflights users on 5/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:00 pm
ONT
-
LGW
2 stops26h 35m
Multiple Airlines
Tue 11/105:05 pm
LGW
-
ONT
2 stops37h 49m
Multiple Airlines
Deal found 5/10$1,231
This Justfly.com deal was found by Cheapflights users on 5/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:50 pm
ONT
-
LGW
2 stops32h 45m
Turkish Airlines
Tue 9/85:35 pm
LGW
-
ONT
2 stops34h 38m
Turkish Airlines
Deal found 5/10$1,246
This Icelandair deal was found by Cheapflights users on 5/10. 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.
Fri 8/142:05 pm
ONT
-
LGW
2 stops37h 40m
Multiple Airlines
Thu 8/271:00 pm
LGW
-
ONT
2 stops17h 10m
Multiple Airlines
Deal found 5/10$1,256
This Icelandair deal was found by Cheapflights users on 5/10. 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 9/243:12 pm
ONT
-
LGW
2 stops15h 28m
Multiple Airlines
Sat 10/33:40 pm
LGW
-
ONT
2 stops39h 10m
Multiple Airlines
Deal found 5/10$1,266
This Turkish Airlines deal was found by Cheapflights users on 5/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2911:50 pm
ONT
-
LGW
2 stops38h 35m
Multiple Airlines
Sat 8/87:10 am
LGW
-
ONT
2 stops24h 01m
Multiple Airlines
Deal found 5/11$1,285
This Icelandair deal was found by Cheapflights users on 5/11. 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.
Fri 8/283:05 pm
ONT
-
LGW
2 stops15h 35m
Multiple Airlines
Tue 9/81:00 pm
LGW
-
ONT
2 stops17h 00m
Multiple Airlines
Deal found 5/11$1,288

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 May 12, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$909
(Delta)

One-way from

$401
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$825
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. 11% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 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 May 12, 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

Wed 9/23

7:00 am-9:25 am

2 stops18h 25m

London Gatwick

Mon 9/28

10:25 am-9:56 pm

2 stops19h 31m

$1,059

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 9/18

12:25 pm-2:40 pm

2 stops18h 15m

London Gatwick

Sat 10/10

3:40 pm-10:50 pm

2 stops39h 10m

$1,339

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 7/3

6:20 am-9:25 am

2 stops19h 05m

London Gatwick

Thu 7/9

10:25 am-10:43 pm

2 stops20h 18m

$1,340

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 6/1

7:00 am-2:40 pm

2 stops23h 40m

London Gatwick

Sun 6/7

10:20 am-9:25 pm

2 stops19h 05m

$1,348

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 6/2

12:04 pm-2:40 pm

2 stops18h 36m

London Gatwick

Tue 6/9

3:40 pm-7:00 pm

2 stops35h 20m

$1,470
Quickest round-trip

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 7/14

2:50 pm-2:40 pm

2 stops15h 50m

London Gatwick

Tue 7/28

1:00 pm-10:15 pm

2 stops17h 15m

$1,511

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 6/4

12:50 pm-2:40 pm

2 stops17h 50m

London Gatwick

Thu 6/11

1:00 pm-11:11 pm

2 stops18h 11m

$1,518

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sat 5/30

1:35 pm-4:00 pm

2 stops18h 25m

London Gatwick

Sun 6/14

10:25 am-9:48 pm

2 stops19h 23m

$1,526

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 6/7

10:41 pm-10:25 pm

2 stops39h 44m

London Gatwick

Fri 7/3

5:35 pm-10:01 pm

2 stops36h 26m

$1,560

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Mon 6/29

2:05 pm-10:25 pm

2 stops24h 20m

London Gatwick

Wed 7/8

7:05 am-11:11 pm

2 stops24h 06m

$1,570

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 23 resultsSorted by cheapest first
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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 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 . 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.

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
Dorking
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton

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