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Gatwick

$317+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGW
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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Cheap 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, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$666
(Iberia)

One-way from

$317
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$691
Provider with most accurate pricing for Ontario-London Gatwick flight deals.
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Provider most trusted by Cheapflights users for Ontario-London Gatwick flights.
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From Ontario to London Gatwick
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One-way flight from Ontario to London Gatwick
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Highest demand for flights based on searches. 7% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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, 2025.

This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:00 pmONT - LGW
2 stops21h 00mIberia
Fri 9/1211:35 amLGW - ONT
2 stops20h 01mIberia
Deal found 5/11$666
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.
Wed 10/2910:45 amONT - LGW
2 stops17h 10mMultiple Airlines
Sun 11/211:55 amLGW - ONT
2 stops18h 42mMultiple Airlines
Deal found 5/11$1,047
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/612:59 amONT - LGW
2 stops21h 36mAmerican Airlines
Sat 6/1410:40 amLGW - ONT
2 stops21h 19mAmerican Airlines
Deal found 5/10$1,128
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.
Tue 6/177:05 amONT - LGW
2 stops18h 55mDelta
Tue 6/2412:00 pmLGW - ONT
2 stops30h 57mDelta
Deal found 5/11$1,175
This KLM deal was found by Cheapflights users on 5/12. 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.
Thu 6/57:05 amONT - LGW
2 stops18h 55mKLM
Thu 6/1212:00 pmLGW - ONT
2 stops18h 25mKLM
Deal found 5/12$1,437

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, 2025.
Use the filters below to find and compare flights from Ontario to London Gatwick Airport that are best for you.

Fly from

Ontario

Fly to

Gatwick

Route

Depart

Return

Price

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 9/3

3:00 pm-8:00 pm

2 stops21h 00m

London Gatwick

Fri 9/12

11:35 am-11:36 pm

2 stops20h 01m

$666

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Wed 10/29

10:45 am-10:55 am

2 stops17h 10m

London Gatwick

Sun 11/2

11:55 am-10:37 pm

2 stops18h 42m

$1,047

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Fri 6/6

12:59 am-6:35 am

2 stops21h 36m

London Gatwick

Sat 6/14

10:40 am-11:59 pm

2 stops21h 19m

$1,128

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 6/17

7:05 am-10:00 am

2 stops18h 55m

London Gatwick

Tue 6/24

12:00 pm-10:57 am

2 stops30h 57m

$1,175

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 6/5

7:05 am-10:00 am

2 stops18h 55m

London Gatwick

Thu 6/12

12:00 pm-10:25 pm

2 stops18h 25m

$1,437

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 7/22

12:59 am-11:45 am

2 stops26h 46m

$317

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sun 8/10

7:05 am-10:00 am

2 stops18h 55m

$403

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Tue 7/22

2:34 pm-8:00 pm

2 stops21h 26m

$416

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sat 8/16

12:00 pm-10:00 am

2 stops38h 00m

$425

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Sat 9/27

11:09 pm-7:50 am

2 stops24h 41m

$500

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

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 May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-London Gatwick Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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, January is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of $566). Flying from Ontario to London Gatwick Airport in June is currently the most expensive (average of $779). 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.

Rainfall in Gatwick by month

Plan your trip to Gatwick by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Gatwick Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Gatwick Airport when rainfall is around 1.6 in.

Temperature in Gatwick by month

Plan your trip to Gatwick by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Gatwick Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Gatwick

Get insights into the airlines that provide service to Gatwick. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Gatwick. Reviews last updated May 12, 2025.
Get a feel of what it's like to fly with Delta, KLM and American Airlines from Ontario to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,340 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,726 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines flying from Ontario to London Gatwick Airport round-trip?

    Iberia, at $666, was found to be the cheapest airline from Ontario to London Gatwick Airport.Alternate airlines to your destination round-trip include American Airlines and Delta.

  • What are the cheapest airlines to fly from Ontario to London Gatwick Airport one-way?

    $403 is the cheapest one-way deal found within the past few days, from KLM. You may also be able to find cheap deals on Iberia and Delta, with prices starting from $416 and $425, respectively.

  • 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, January is the cheapest month in which you can book a flight from Ontario to London Gatwick Airport (average of $566). Flying from Ontario to London Gatwick Airport in June is currently the most expensive (average of $779). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Wembley
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
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Sutton
Brentwood
Chichester

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