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Cheap flights from Brighton to Ontario from £383

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ONT
9 Jul — 16 Jul1
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 4 July 2025.

Round-trip from

£411

One-way from

£383

Popular in

August

Cheapest in

February

Average price

£763
British Airways
  • British Airways
  • 6/9-13/9
  • 2 total stops
  • 36h 48m total
  • Brighton to Ontario
Search Deals
15/10
  • 15/10
  • 2 total stops
  • 27h 51m total
  • Brighton to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 4 July 2025.

Sat 6/910:30LHR - ONT
1 stop20h 03mBritish Airways
Sat 13/908:15ONT - LHR
1 stop16h 45mBritish Airways
Deal found 3/7£411
Thu 28/810:40LGW - ONT
2 stops32h 52mAmerican Airlines
Wed 10/913:10ONT - LGW
2 stops35h 00mAmerican Airlines
Deal found 3/7£412
Sun 24/817:25LHR - ONT
1 stop33h 46mKLM
Tue 9/907:05ONT - LHR
1 stop15h 40mKLM
Deal found 2/7£412
Fri 29/815:05LGW - ONT
2 stops28h 27mMultiple Airlines
Thu 11/906:10ONT - LGW
2 stops18h 00mMultiple Airlines
Deal found 2/7£415
Thu 4/912:00LHR - ONT
1 stop14h 54mFinnair
Tue 9/910:53ONT - LHR
1 stop15h 57mFinnair
Deal found 3/7£424
Sun 24/806:30LHR - ONT
2 stops23h 50mDelta
Tue 9/907:05ONT - LHR
2 stops16h 10mDelta
Deal found 3/7£429
Tue 25/1106:10LHR - ONT
2 stops23h 50mIberia
Fri 5/1210:57ONT - LHR
1 stop16h 43mIberia
Deal found 2/7£431
Thu 11/910:55LHR - ONT
1 stop20h 47mVirgin Atlantic
Fri 3/1013:15ONT - LHR
2 stops20h 35mVirgin Atlantic
Deal found 3/7£443
Thu 28/812:00LHR - ONT
1 stop14h 25mAmerican Airlines
Wed 10/916:45ONT - LHR
1 stop12h 05mAmerican Airlines
Deal found 3/7£443
Sat 13/911:15LHR - ONT
1 stop15h 01mAlaska Airlines
Fri 26/912:45ONT - LHR
1 stop14h 05mAlaska Airlines
Deal found 2/7£462
Thu 7/810:55LHR - ONT
1 stop13h 34mMultiple Airlines
Sat 16/813:15ONT - LHR
1 stop12h 35mMultiple Airlines
Deal found 3/7£478
Sat 23/812:00LGW - ONT
2 stops42h 20mKLM
Sat 6/907:05ONT - LGW
2 stops18h 55mKLM
Deal found 2/7£511

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 4 July 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

LHR - ONT

LHRONT

London Heathrow

Sat 6/9

10:30-22:33

1 stop20h 03m

Ontario

Sat 13/9

08:15-09:00

1 stop16h 45m

£411

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Thu 28/8

10:40-11:32

2 stops32h 52m

Ontario

Wed 10/9

13:10-08:10

2 stops35h 00m

£412

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 24/8

17:25-19:11

1 stop33h 46m

Ontario

Tue 9/9

07:05-06:45

1 stop15h 40m

£412

LondonOntario

LGW - ONT

LGWONT

London Gatwick

Fri 29/8

15:05-11:32

2 stops28h 27m

Ontario

Thu 11/9

06:10-08:10

2 stops18h 00m

£415

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 4/9

12:00-18:54

1 stop14h 54m

Ontario

Tue 9/9

10:53-10:50

1 stop15h 57m

£424

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 24/8

09:15-00:08

2 stops22h 53m

Ontario

Tue 9/9

12:45-14:25

1 stop17h 40m

£429

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sun 24/8

06:30-22:20

2 stops23h 50m

Ontario

Tue 9/9

07:05-07:15

2 stops16h 10m

£429

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 11/9

10:55-23:42

1 stop20h 47m

Ontario

Fri 3/10

13:15-17:50

2 stops20h 35m

£443

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Thu 28/8

12:00-18:25

1 stop14h 25m

Ontario

Wed 10/9

16:45-12:50

1 stop12h 05m

£443

LondonOntario

LHR - ONT

LHRONT

London Heathrow

Sat 13/9

11:15-18:16

1 stop15h 01m

Ontario

Fri 26/9

12:45-10:50

1 stop14h 05m

£462

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 36 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 27 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 4 July 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.

How much does it cost for a return flight from Brighton to Ontario?

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 4 July 2025.
Read reviews from past customers who have flown with Alaska Airlines, Delta, andKLM from Brighton to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,982 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
KLM
7.8
Good
1,367 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Finnair
7.6
Good
1,306 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Virgin Atlantic
7.4
Good
654 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 £434. Users have also found prices from £457 and £570 on Iberia and JetBlue, respectively.

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

    While some choose either London Gatwick - Ontario or London City - Ontario, London Heathrow - Ontario is the most popular route 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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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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£353Average£431FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£372Average£479FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£372Average£586FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£389Average£580FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£400Average£502FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£424Average£545FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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