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Cheap flights from Brighton to Ontario from £347

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ONT
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Brighton to Ontario are usually found in February or January, booked 77 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Brighton to Ontario

Keep the following information in mind while searching for Brighton to Ontario flight deals. Data was last updated 13 June 2025.

Round-trip from

£356

One-way from

£347

Popular in

August

Cheapest in

February

Average price

£544
8/9-15/9
  • 8/9-15/9
  • 4 total stops
  • 54h 26m total
  • Brighton to Ontario
9/9
  • 9/9
  • 2 total stops
  • 32h 44m total
  • Brighton to Ontario
Highest demand for flights based on searches. 19% potential increase in price (£98 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find flight deals from Brighton to Ontario

Cheapest flights from Brighton to Ontario
Explore the most affordable flight options available from Brighton to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Mon 8/915:05LGW - ONT
2 stops28h 51mMultiple Airlines
Mon 15/922:35ONT - LGW
2 stops25h 35mMultiple Airlines
Deal found 10/6£356
Tue 2/915:05LGW - ONT
2 stops28h 51mAmerican Airlines
Tue 9/916:45ONT - LGW
2 stops31h 25mAmerican Airlines
Deal found 11/6£364
Mon 1/916:25LHR - ONT
1 stop15h 42mBritish Airways
Tue 30/916:45ONT - LHR
1 stop13h 55mBritish Airways
Deal found 11/6£370
Wed 17/911:45LHR - ONT
2 stops20h 01mVirgin Atlantic
Wed 24/912:00ONT - LHR
1 stop17h 30mVirgin Atlantic
Deal found 10/6£372
Mon 8/906:30LHR - ONT
2 stops18h 41mKLM
Mon 15/909:55ONT - LHR
1 stop15h 55mKLM
Deal found 10/6£373
Tue 2/912:00LHR - ONT
1 stop14h 24mAmerican Airlines
Mon 8/914:54ONT - LHR
1 stop34h 06mAmerican Airlines
Deal found 11/6£387
Mon 18/806:30LHR - ONT
2 stops34h 25mDelta
Thu 11/911:29ONT - LHR
1 stop18h 46mDelta
Deal found 12/6£391
Wed 17/908:40LCY - ONT
2 stops23h 06mVirgin Atlantic
Wed 24/907:00ONT - LCY
2 stops18h 30mVirgin Atlantic
Deal found 10/6£423
Tue 8/710:30LHR - ONT
1 stop20h 04mFinnair
Tue 15/716:45ONT - LHR
1 stop13h 55mFinnair
Deal found 11/6£440
Mon 23/608:40LCY - ONT
2 stops23h 06mDelta
Mon 7/707:05ONT - LCY
2 stops17h 45mDelta
Deal found 12/6£476
Mon 23/611:15LHR - ONT
1 stop14h 57mRoyal Air Maroc
Mon 7/708:15ONT - LHR
1 stop16h 45mRoyal Air Maroc
Deal found 10/6£476
Mon 22/912:05LHR - ONT
2 stops18h 25mUnited Airlines
Mon 29/913:15ONT - LHR
1 stop12h 25mUnited Airlines
Deal found 11/6£486

Cheapflights Fare Finder

Customise your flight search to find flights from Brighton 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 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from Brighton to Ontario that are best for you.

Fly from

Brighton

Fly to

Ontario

Route

Depart

Return

Price

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Mon 8/9

15:05-11:56

2 stops28h 51m

Ontario

Mon 15/9

22:35-08:10

2 stops25h 35m

£356

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Tue 2/9

15:05-11:56

2 stops28h 51m

Ontario

Tue 9/9

16:45-08:10

2 stops31h 25m

£364

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 1/9

16:25-00:07

1 stop15h 42m

Ontario

Tue 30/9

16:45-14:40

1 stop13h 55m

£370

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Wed 17/9

11:45-23:46

2 stops20h 01m

Ontario

Wed 24/9

12:00-13:30

1 stop17h 30m

£372

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 8/9

06:30-17:11

2 stops18h 41m

Ontario

Mon 15/9

09:55-09:50

1 stop15h 55m

£373

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Tue 2/9

12:00-18:24

1 stop14h 24m

Ontario

Tue 9/9

16:45-12:50

1 stop12h 05m

£387

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 18/8

06:30-08:55

2 stops34h 25m

Ontario

Thu 11/9

11:29-14:15

1 stop18h 46m

£391

LondonOntario

LCY - ONT

LCYONT

London City

Wed 17/9

08:40-23:46

2 stops23h 06m

Ontario

Wed 24/9

07:00-09:30

2 stops18h 30m

£423

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Tue 8/7

10:30-22:34

1 stop20h 04m

Ontario

Tue 15/7

16:45-14:40

1 stop13h 55m

£440

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Mon 23/6

11:15-18:12

1 stop14h 57m

Ontario

Mon 7/7

08:15-09:00

1 stop16h 45m

£476

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 41 results
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Best time to book a flight from Brighton to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Brighton with our price prediction graph.
Estimated return 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 Brighton to Ontario

How far ahead should I book a flight from Brighton to Ontario?

Use this chart to determine the optimal time to book a return flight from Brighton to Ontario. Price data was last updated on 9 June 2025.

The best time to book flights from Brighton to Ontario is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Brighton to Ontario?

Currently, March is the cheapest month in which you can book a flight from Brighton to Ontario (average of £516). Flying from Brighton to Ontario in August is currently the most expensive (average of £827). 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.

What is the cheapest time of day to fly from BH9 to ONT?

Find hourly flight availability from Brighton to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brighton to Ontario as you normally would.

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 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

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 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

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 13 June 2025.
Get a feel of what it's like to fly with Delta, Alaska Airlines and KLM from Brighton to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8.0
Very Good

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

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 Brighton 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 Brighton?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Brighton. On average, Ontario has 0 inbound flights from Brighton per day from 6 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • What are the cheapest airlines to fly from Brighton to Ontario one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £436. Users have also found prices from £463 and £583 on Iberia and JetBlue, respectively.

  • What are the most popular routes from Brighton to Ontario?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Brighton 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 Brighton to Ontario?

    Currently, March is the cheapest month in which you can book a flight from Brighton to Ontario (average of £516). Flying from Brighton to Ontario in August is currently the most expensive (average of £827). 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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Alternative routes for Brighton to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Brighton to Ontario

Discover the top 6 airlines that operate flights from Brighton to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£362Average£432FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£374Average£572FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£381Average£517FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£391Average£635FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£401Average£504FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£426Average£548FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Brighton to Ontario?

When you search for this flight from Brighton to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Brighton to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Brighton.

Can Cheapflights find flights from Brighton to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Brighton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Brighton to Ontario become cheaper?

Of course! You can now track prices for flights from Brighton to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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