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$501+ Cheap flights from Heathrow (LHR) to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ONT
Sep 16 — Sep 231
From?
To?
Mon 9/16
Mon 9/23
1 adult, Economy
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Find cheap flights from Heathrow to Ontario with Cheapflights

1. Tell us where you want to go
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The best prices from London Heathrow to Ontario are usually found in November or February, booked 21 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Heathrow to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 September 11, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

August

Cheapest in

November

Average price

$628

Round-trip from

$503
(TravelUp)
Provider with most accurate pricing for London Heathrow-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Ontario flights.
Search Deals
High demand for flights, 34% potential price rise
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Best time to find cheap flights, 30% potential price drop
Search Deals
Average for round-trip flights in September 2024
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From London Heathrow to Ontario
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Cheap Heathrow to Ontario flights in September & October 2024

Find cheap flight options from Heathrow to Ontario specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,873,399 searches. Prices were last updated on September 11, 2024.
Scroll through some of the best deals on flights from London to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
This TravelUp deal was found by Cheapflights users on 9/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1710:55 amLHR - ONT
1 stop20h 54mVirgin Atlantic
Wed 9/257:35 amONT - LHR
1 stop18h 15mVirgin Atlantic
Deal found 9/10$501
This TravelUp deal was found by Cheapflights users on 9/11. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1812:45 pmLHR - ONT
1 stop15h 10mKLM
Wed 9/251:20 pmONT - LHR
1 stop12h 40mKLM
Deal found 9/11$502
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/179:55 amLHR - ONT
2 stops20h 44mDelta
Wed 9/257:35 amONT - LHR
1 stop18h 15mDelta
Deal found 9/10$512
This ChecknFly deal was found by Cheapflights users on 9/10. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/172:25 pmLHR - ONT
2 stops26h 26mFinnair
Wed 9/2512:45 pmONT - LHR
2 stops15h 30mFinnair
Deal found 9/10$514
This Iberia deal was found by Cheapflights users on 9/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/231:05 pmLHR - ONT
1 stop14h 57mIberia
Mon 9/3010:51 amONT - LHR
1 stop13h 09mIberia
Deal found 9/10$530
This Netflights deal was found by Cheapflights users on 9/10. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1811:00 amLHR - ONT
1 stop15h 28mBritish Airways
Sun 9/2911:59 pmONT - LHR
1 stop24h 01mBritish Airways
Deal found 9/10$542
This ChecknFly deal was found by Cheapflights users on 9/11. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/76:00 pmLHR - ONT
2 stops31h 17mLufthansa
Tue 10/226:35 pmONT - LHR
2 stops18h 05mLufthansa
Deal found 9/11$606
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/89:30 amLHR - ONT
2 stops21h 26mUnited Airlines
Tue 10/151:28 pmONT - LHR
1 stop14h 52mUnited Airlines
Deal found 9/10$617
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/810:15 amLHR - ONT
2 stops20h 41mMultiple Airlines
Tue 10/157:18 amONT - LHR
2 stops18h 42mMultiple Airlines
Deal found 9/10$628

Heathrow to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,873,399 searches. Data last updated September 11, 2024.
Scroll through some of the best deals on flights from London to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
This TravelUp deal was found by Cheapflights users on 9/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1710:55 amLHR - ONT
1 stop20h 54mVirgin Atlantic
Wed 9/257:35 amONT - LHR
1 stop18h 15mVirgin Atlantic
Deal found 9/10$501
This TravelUp deal was found by Cheapflights users on 9/11. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1812:45 pmLHR - ONT
1 stop15h 10mKLM
Wed 9/251:20 pmONT - LHR
1 stop12h 40mKLM
Deal found 9/11$502
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/179:55 amLHR - ONT
2 stops20h 44mDelta
Wed 9/257:35 amONT - LHR
1 stop18h 15mDelta
Deal found 9/10$512
This ChecknFly deal was found by Cheapflights users on 9/10. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/172:25 pmLHR - ONT
2 stops26h 26mFinnair
Wed 9/2512:45 pmONT - LHR
2 stops15h 30mFinnair
Deal found 9/10$514
This Iberia deal was found by Cheapflights users on 9/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/231:05 pmLHR - ONT
1 stop14h 57mIberia
Mon 9/3010:51 amONT - LHR
1 stop13h 09mIberia
Deal found 9/10$530
This Netflights deal was found by Cheapflights users on 9/10. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1811:00 amLHR - ONT
1 stop15h 28mBritish Airways
Sun 9/2911:59 pmONT - LHR
1 stop24h 01mBritish Airways
Deal found 9/10$542
This ChecknFly deal was found by Cheapflights users on 9/11. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/76:00 pmLHR - ONT
2 stops31h 17mLufthansa
Tue 10/226:35 pmONT - LHR
2 stops18h 05mLufthansa
Deal found 9/11$606
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/89:30 amLHR - ONT
2 stops21h 26mUnited Airlines
Tue 10/151:28 pmONT - LHR
1 stop14h 52mUnited Airlines
Deal found 9/10$617
This Air Canada deal was found by Cheapflights users on 9/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/810:15 amLHR - ONT
2 stops20h 41mMultiple Airlines
Tue 10/157:18 amONT - LHR
2 stops18h 42mMultiple Airlines
Deal found 9/10$628

Heathrow to Ontario flights leaving soon

Find last-minute flight options from Heathrow to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,873,399 searches. Data last updated September 11, 2024.
Check out these flights departing soon from London to Ontario. To prevent any unwanted surprises, users should verify their flight info before booking.
This TravelUp deal was found by Cheapflights users on 9/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1710:55 amLHR - ONT
1 stop20h 54mVirgin Atlantic
Wed 9/257:35 amONT - LHR
1 stop18h 15mVirgin Atlantic
Deal found 9/10$501
This TravelUp deal was found by Cheapflights users on 9/11. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1812:45 pmLHR - ONT
1 stop15h 10mKLM
Wed 9/251:20 pmONT - LHR
1 stop12h 40mKLM
Deal found 9/11$502
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/179:55 amLHR - ONT
2 stops20h 44mDelta
Wed 9/257:35 amONT - LHR
1 stop18h 15mDelta
Deal found 9/10$512
This ChecknFly deal was found by Cheapflights users on 9/10. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/172:25 pmLHR - ONT
2 stops26h 26mFinnair
Wed 9/2512:45 pmONT - LHR
2 stops15h 30mFinnair
Deal found 9/10$514
This Iberia deal was found by Cheapflights users on 9/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/171:05 pmLHR - ONT
1 stop14h 57mIberia
Tue 9/2410:51 amONT - LHR
1 stop13h 09mIberia
Deal found 9/10$539
This Netflights deal was found by Cheapflights users on 9/10. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1811:00 amLHR - ONT
1 stop15h 28mBritish Airways
Sun 9/2911:59 pmONT - LHR
1 stop24h 01mBritish Airways
Deal found 9/10$542
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/182:50 pmLHR - ONT
1 stop14h 12mUnited Airlines
Sat 9/281:28 pmONT - LHR
1 stop12h 12mUnited Airlines
Deal found 9/11$888
This Air Canada deal was found by Cheapflights users on 9/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2012:05 pmLHR - ONT
2 stops20h 40mMultiple Airlines
Sat 10/57:18 amONT - LHR
2 stops18h 42mMultiple Airlines
Deal found 9/11$932
This The Travel House deal was found by Cheapflights users on 9/10. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/167:25 amLHR - ONT
1 stop22h 55mIcelandair
Mon 9/3011:35 pmONT - LHR
1 stop25h 55mIcelandair
Deal found 9/10$1,013

One-way flights to Ontario from Heathrow

Search for one-way flight options from Heathrow to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,873,399 searches. Data last updated September 11, 2024.
Users in need of a one-way flight from London to Ontario can choose from these deals. Users in need of a round-trip flight from London to Ontario instead should update the search form at the top of page.
This The Travel House deal was found by Cheapflights users on 9/10. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1911:00 amLHR - ONT
1 stop15h 34mFinnair
Deal found 9/10$633
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/182:10 pmLHR - ONT
3 stops51h 26mMultiple Airlines
Deal found 9/10$634
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/11:40 pmLHR - ONT
1 stop16h 06mLufthansa
Deal found 9/10$650
This TravelJunction deal was found by Cheapflights users on 9/10. 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 TravelJunction is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/18:10 amLHR - ONT
1 stop19h 52mIberia
Deal found 9/10$717
This JetBlue deal was found by Cheapflights users on 9/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/267:25 amLHR - ONT
1 stop22h 55mJetBlue
Deal found 9/10$758
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/39:40 pmLHR - ONT
2 stops31h 20mAvianca
Deal found 9/11$922
This The Travel House deal was found by Cheapflights users on 9/11. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/127:25 amLHR - ONT
1 stop23h 15mIcelandair
Deal found 9/11$979
This EaseMyTrip deal was found by Cheapflights users on 9/10. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2010:40 amLHR - ONT
1 stop15h 53mBritish Airways
Deal found 9/10$1,481
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/51:25 pmLHR - ONT
2 stops40h 58mAir Canada
Deal found 9/10$1,518

Find flights from Heathrow to Ontario within your budget

Customize your flight search to find flights from Heathrow 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 2,873,399 searches. Data last updated September 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$503 - $631

Route

Depart

Return

Price

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 11/4

1 stop17h 59m

Ontario

Mon 11/11

1 stop14h 42m

$503

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 9/23

1 stop14h 57m

Ontario

Mon 9/30

1 stop13h 09m

$530

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Mon 10/28

1 stop17h 45m

Ontario

Thu 11/28

2 stops23h 15m

$545

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Thu 11/21

1 stop16h 46m

Ontario

Sun 12/1

1 stop26h 37m

$547

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 9/24

2 stops21h 25m

Ontario

Sat 10/5

2 stops15h 35m

$551

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sat 9/21

1 stop19h 00m

Ontario

Mon 9/23

1 stop12h 40m

$572

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 10/8

2 stops21h 26m

Ontario

Tue 10/15

1 stop14h 52m

$617

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Tue 11/5

2 stops35h 10m

Ontario

Sun 2/2

1 stop23h 21m

$621

London HeathrowOntario

LHR - ONT

LHRONT

London Heathrow

Sat 10/26

1 stop14h 12m

Ontario

Tue 10/29

1 stop12h 58m

$631

Flights are sorted by cheapest first

Deals found on 9/9

  • Most accurate provider: When it comes to deals on London Heathrow 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 Heathrow Airport-Ontario flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow 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 Heathrow 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 Heathrow to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Heathrow 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.

Travel insights for flights from Heathrow to Ontario

Get recent, data-driven insights about flights from Heathrow to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Ontario. Price data was last updated on September 6, 2024.

Booking 19 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Find deals

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

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Ontario (average of $451). Flying from London Heathrow Airport to Ontario in July is currently the most expensive (average of $590). 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 LHR to ONT?

Find hourly flight availability from Heathrow 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 September 11, 2024.

Unlike in the morning, when flights are generally more expensive, you can save up to 26% on flights from London Heathrow Airport to Ontario by exploring options for tickets in the afternoon.

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 September 11, 2024.
Read through reviews of airlines operating flights from London to Ontario, such as British Airways, United Airlines and American Airlines. 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.
Delta
8.0
Very good
9,126 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Delta
8.0
Very good
9,126 reviews
Delta
8.0
Very good
9,126 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
9,126 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Finnair
7.7
Good
1,317 reviews
Delta
8.0
Very good
9,126 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Virgin Atlantic
7.6
Good
691 reviews
Delta
8.0
Very good
9,126 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

JetBlue
7.6
Good
3,718 reviews
Delta
8.0
Very good
9,126 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

    Ontario (ONT) is the airport you will fly into if you book a flight from London Heathrow to Ontario. You should not have trouble finding flights to Ontario from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Ontario airport from London Heathrow. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

  • Can I find flights from London Heathrow Airport to Ontario for under $600 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Ontario for under $600. The cheapest flight booked recently is on KLM for just $503, but on average you can expect to pay $610.

  • Are there last-minute flights available from London Heathrow Airport to Ontario for under $600?

    There are currently 12+ open flights from London Heathrow Airport to Ontario within the next 7 days for less than $600.

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

    Flying on KLM is currently your cheapest option to Ontario, with prices starting at $503. Additional round-trip tickets that might be worth considering are offered by Iberia and British Airways, with the lowest prices starting at $530 and $545, respectively. These flights start at 27% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Finnair, which is currently one of the cheapest options available, starting at $633. Lufthansa flights start at $650 while deals on Iberia start at $717 one-way.

  • What does LHR to ONT mean?

    This is defined as London Heathrow Airport (LHR) and Ontario Airport (ONT). Codes like Ontario Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Heathrow to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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.

  • Can I find deals for flights from Heathrow to Ontario that allow pets onboard?

    Many airlines flying from Heathrow to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to Ontario?

    Yes, you can often find last-minute deals on Heathrow to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to Ontario flight deals updated?

    The London Heathrow Airport to Ontario flight deals you see on this page were last updated on 9/11.

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

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Ontario (average of $451). Flying from London Heathrow Airport to Ontario in July is currently the most expensive (average of $590). 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.

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