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Ontario

$370+ Cheap flights from Gatwick (LGW) to Ontario (ONT)

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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ONT
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Gatwick to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Ontario (ONT). 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 mayo 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$521
(Finnair)

One-way from

$370
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$638
Provider with most accurate pricing for London Gatwick-Ontario flight deals.
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Provider most trusted by Cheapflights users for London Gatwick-Ontario flights.
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From London Gatwick to Ontario
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One-way flight from London Gatwick to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 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 Gatwick to Ontario

Cheapest flights from Gatwick to Ontario
Explore the most affordable flight options available from Gatwick to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Finnair deal was found by Cheapflights users on 4/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/182:45 pmLGW - ONT
2 stops31h 07mMultiple Airlines
sáb. 5/2410:40 pmONT - LGW
2 stops25h 10mMultiple Airlines
Deal found 4/30$521
This American Airlines deal was found by Cheapflights users on 4/30. 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.
mar. 5/133:05 pmLGW - ONT
2 stops28h 45mAmerican Airlines
dom. 6/111:59 pmONT - LGW
2 stops24h 11mAmerican Airlines
Deal found 4/30$523
This lol.travel deal was found by Cheapflights users on 4/30. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/308:40 pmLGW - ONT
2 stops54h 21mIberia
dom. 7/1312:46 pmONT - LGW
2 stops23h 14mIberia
Deal found 4/30$684
This The Travel House 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/1112:10 pmLGW - ONT
2 stops41h 49mIcelandair
dom. 6/1511:59 pmONT - LGW
2 stops49h 36mIcelandair
Deal found 4/29$925
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1711:35 amLGW - ONT
2 stops20h 01mBritish Airways
jue. 9/1812:49 pmONT - LGW
2 stops23h 11mBritish Airways
Deal found 4/30$1,453
This Delta deal was found by Cheapflights users on 4/30. 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.
vie. 6/612:00 pmLGW - ONT
2 stops19h 42mDelta
dom. 6/87:05 amONT - LGW
2 stops18h 55mDelta
Deal found 4/30$1,727
This World Air Fares deal was found by Cheapflights users on 4/30. 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 World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/3012:00 pmLGW - ONT
2 stops39h 54mKLM
vie. 7/47:05 amONT - LGW
2 stops18h 55mKLM
Deal found 4/30$2,946

Cheapflights Fare Finder

Customize your flight search to find flights from Gatwick to Ontario 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 mayo 1, 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Ontario that are best for you.

Fly from

Gatwick

Fly to

Ontario

Route

Depart

Return

Price

LondonOntario

LGW - ONT

LGWONT

London Gatwick

dom. 5/18

2:45 pm-1:52 pm

2 stops31h 07m

Ontario

sáb. 5/24

10:40 pm-7:50 am

2 stops25h 10m

$521

LondonOntario

LGW - ONT

LGWONT

London Gatwick

mar. 5/13

3:05 pm-11:50 am

2 stops28h 45m

Ontario

dom. 6/1

11:59 pm-8:10 am

2 stops24h 11m

$523

LondonOntario

LGW - ONT

LGWONT

London Gatwick

lun. 6/30

8:40 pm-7:01 pm

2 stops54h 21m

Ontario

dom. 7/13

12:46 pm-8:00 pm

2 stops23h 14m

$684

LondonOntario

LGW - ONT

LGWONT

London Gatwick

mié. 6/11

12:10 pm-9:59 pm

2 stops41h 49m

Ontario

dom. 6/15

11:59 pm-9:35 am

2 stops49h 36m

$925

LondonOntario

LGW - ONT

LGWONT

London Gatwick

mié. 9/17

11:35 am-11:36 pm

2 stops20h 01m

Ontario

jue. 9/18

12:49 pm-8:00 pm

2 stops23h 11m

$1,453

LondonOntario

LGW - ONT

LGWONT

London Gatwick

vie. 6/6

12:00 pm-11:42 pm

2 stops19h 42m

Ontario

dom. 6/8

7:05 am-10:00 am

2 stops18h 55m

$1,727

LondonOntario

LGW - ONT

LGWONT

London Gatwick

lun. 6/30

12:00 pm-7:54 pm

2 stops39h 54m

Ontario

vie. 7/4

7:05 am-10:00 am

2 stops18h 55m

$2,946

LondonOntario

LGW - ONT

LGWONT

London Gatwick

mar. 5/13

1:00 pm-12:08 pm

3 stops31h 08m

$370

LondonOntario

LGW - ONT

LGWONT

London Gatwick

mié. 9/17

10:40 am-9:56 pm

2 stops19h 16m

$836

LondonOntario

LGW - ONT

LGWONT

London Gatwick

dom. 6/8

9:45 pm-7:01 pm

2 stops29h 16m

$1,003

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 13 results
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2

Compare providers for flights from Gatwick to Ontario

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 Gatwick to Ontario in May.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 London Gatwick Airport-Ontario flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on London Gatwick Airport-Ontario flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from London Gatwick Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Gatwick Airport-Ontario 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 London Gatwick Airport-Ontario 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 Gatwick to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Ontario (average of $246). Flying from London Gatwick Airport to Ontario in March is currently the most expensive (average of $328). 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 Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated mayo 1, 2025.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Icelandair
7.0
Good
487 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Ontario. 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 into for flights to Ontario from London Gatwick?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from London Gatwick to Ontario. 0 airlines have flights to Ontario from London Gatwick on a regular basis. Booking flights from London Gatwick to Ontario should not be difficult; the airport handles an average of 0 inbound flights from London Gatwick per day.

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

    Cheapflights users have booked flights from London Gatwick Airport to Ontario round-trip from $523. Other airlines that can offer you cheap pricing are Iberia, from $684, and Icelandair, from $925.

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

    The cheapest airlines for a one-way flight from London Gatwick Airport to Ontario are Finnair ($836), Iberia ($1,003), and Icelandair ($1,146).

  • Can I find deals for flights from Gatwick to Ontario that include hotel bookings?

    Yes. In addition to deals on Gatwick to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Ontario.

  • Can I find deals for business class flights from Gatwick to Ontario?

    Yes. Cheapflights offers flight deals from Gatwick to Ontario 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 London Gatwick Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Ontario (average of $246). Flying from London Gatwick Airport to Ontario in March is currently the most expensive (average of $328). 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

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