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Cheap flights from Ontario (ONT) to Heathrow (LHR) from $379

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 7/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — LHR
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
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The best prices from Ontario to London Heathrow are usually found in April or December, booked 52 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Ontario to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Heathrow (LHR). 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 28, 2024.

Popular in

June

Cheapest in

April

Round-trip from

$643

One-way from

$433
High demand for flights, 26% potential price rise
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Best time to find cheap flights, 13% potential price drop
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From Ontario to London Heathrow
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One-way flight from Ontario to London Heathrow
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What is the cheapest day to fly round-trip from Ontario to London Heathrow Airport?

Sunday flights are generally found to be more expensive for flights from Ontario to London Heathrow Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London Heathrow Airport.

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

Find a great deal and save up to 28% by booking at least 15 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at $760.

What is the cheapest month to fly from Ontario to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Ontario in October are about $714 on average during October, but can be found for as low as $433.

When is the cheapest time to fly from Ontario to London Heathrow Airport (ONT - LHR)?

It’s typically best to fly out from Ontario to London Heathrow Airport in the morning. Doing so could potentially save you 31% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap United Airlines flights from Ontario to Heathrow

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Consider these cheap United Airlines flights we've found departing from Ontario to London. Be sure to come back soon if the deals available don't appeal to you at this time.
Mon 11/181:00 pmONT - LHR
1 stop12h 40mUnited Airlines
Tue 12/312:35 pmLHR - ONT
1 stop16h 46mUnited Airlines
Deal found 5/28$624
Mon 7/291:30 pmONT - LHR
2 stops14h 50mUnited Airlines
Thu 8/292:50 pmLHR - ONT
1 stop14h 12mUnited Airlines
Deal found 5/28$666
Wed 8/216:00 amONT - LHR
1 stop17h 40mUnited Airlines
Fri 9/134:15 pmLHR - ONT
1 stop16h 30mUnited Airlines
Deal found 5/27$671
Wed 8/216:00 amONT - LHR
1 stop17h 40mUnited Airlines
Fri 9/134:15 pmLHR - ONT
1 stop16h 30mUnited Airlines
Deal found 5/28$672
Wed 8/216:00 amONT - LHR
2 stops18h 20mUnited Airlines
Fri 9/134:15 pmLHR - ONT
1 stop16h 30mUnited Airlines
Deal found 5/28$676
Sat 8/106:35 pmONT - LHR
1 stop35h 35mUnited Airlines
Thu 8/294:15 pmLHR - ONT
1 stop16h 30mUnited Airlines
Deal found 5/27$677
Mon 8/121:30 pmONT - LHR
2 stops14h 50mUnited Airlines
Tue 8/201:40 pmLHR - ONT
1 stop15h 51mUnited Airlines
Deal found 5/27$711
Mon 8/121:30 pmONT - LHR
1 stop12h 55mUnited Airlines
Tue 8/201:40 pmLHR - ONT
1 stop15h 51mUnited Airlines
Deal found 5/28$712
Sun 8/257:40 amONT - LHR
1 stop15h 15mUnited Airlines
Sat 9/1410:25 amLHR - ONT
1 stop15h 31mUnited Airlines
Deal found 5/27$713

Cheap Delta flights from Ontario to Heathrow

Explore cheap flight options specifically provided by Delta for the route between Ontario and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Browse through some of the cheapest Delta flights traveling from Ontario to London. Deals frequently update to provide users with more options.
Tue 10/2912:45 pmONT - LHR
1 stop15h 25mDelta
Fri 11/88:40 amLHR - ONT
2 stops20h 30mDelta
Deal found 5/28$627
Tue 11/56:00 amONT - LHR
2 stops17h 55mDelta
Tue 11/266:30 amLHR - ONT
2 stops20h 52mDelta
Deal found 5/27$632
Fri 11/17:45 amONT - LHR
1 stop20h 55mDelta
Sat 11/96:20 amLHR - ONT
2 stops17h 52mDelta
Deal found 5/28$724
Fri 11/16:00 amONT - LHR
2 stops18h 05mDelta
Sat 11/96:20 amLHR - ONT
2 stops17h 52mDelta
Deal found 5/28$729
Tue 6/42:13 pmONT - LHR
1 stop16h 37mDelta
Thu 7/116:15 amLHR - ONT
2 stops20h 01mDelta
Deal found 5/28$890
Mon 6/36:42 pmONT - LHR
2 stops17h 28mDelta
Wed 7/1010:50 amLHR - ONT
2 stops21h 09mDelta
Deal found 5/28$901
Wed 6/56:50 amONT - LHR
1 stop19h 00mDelta
Fri 7/124:50 pmLHR - ONT
1 stop26h 19mDelta
Deal found 5/28$902
Tue 6/46:50 amONT - LHR
2 stops19h 40mDelta
Thu 7/116:15 amLHR - ONT
2 stops20h 01mDelta
Deal found 5/28$907
Wed 6/56:50 amONT - LHR
2 stops19h 40mDelta
Fri 7/1210:50 amLHR - ONT
2 stops21h 09mDelta
Deal found 5/28$918

Cheap Ontario to Heathrow flights in May & June 2024

Find cheap flight options from Ontario to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Prices were last updated on May 28, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to London in 2024. For more flight deals, be sure to check back very soon.
Mon 6/245:15 amONT - LHR
1 stop20h 25mUnited Airlines
Fri 8/2312:20 pmLHR - ONT
1 stop20h 25mUnited Airlines
Deal found 5/28$797
Tue 5/281:50 pmONT - LHR
1 stop12h 35mUnited Airlines
Wed 6/124:15 pmLHR - ONT
1 stop14h 12mUnited Airlines
Deal found 5/27$829
Tue 5/281:50 pmONT - LHR
1 stop12h 35mUnited Airlines
Wed 6/1911:05 amLHR - ONT
1 stop14h 23mUnited Airlines
Deal found 5/28$830
Tue 5/281:50 pmONT - LHR
1 stop12h 35mUnited Airlines
Fri 6/72:50 pmLHR - ONT
1 stop13h 58mUnited Airlines
Deal found 5/27$836
Wed 5/291:50 pmONT - LHR
1 stop12h 35mUnited Airlines
Wed 6/124:15 pmLHR - ONT
1 stop14h 12mUnited Airlines
Deal found 5/28$837
Tue 6/251:29 pmONT - LHR
1 stop14h 51mUnited Airlines
Tue 10/152:50 pmLHR - ONT
1 stop13h 42mUnited Airlines
Deal found 5/27$846
Mon 6/105:15 amONT - LHR
1 stop23h 05mUnited Airlines
Mon 6/172:50 pmLHR - ONT
1 stop13h 58mUnited Airlines
Deal found 5/27$854
Wed 6/265:15 amONT - LHR
1 stop23h 05mUnited Airlines
Mon 8/1910:35 amLHR - ONT
1 stop18h 56mUnited Airlines
Deal found 5/28$855
Sun 6/96:25 pmONT - LHR
1 stop33h 55mUnited Airlines
Sun 6/1612:20 pmLHR - ONT
1 stop18h 07mUnited Airlines
Deal found 5/26$861

Ontario to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to London in 2024. For more flight deals, be sure to check back very soon.
Mon 10/142:52 pmONT - LHR
1 stop13h 53mIberia
Thu 10/249:15 amLHR - ONT
2 stops22h 11mIberia
Deal found 5/27$614
Sun 9/221:35 pmONT - LHR
1 stop12h 05mUnited Airlines
Thu 10/31:40 pmLHR - ONT
1 stop16h 06mUnited Airlines
Deal found 5/28$624
Tue 10/2912:45 pmONT - LHR
1 stop15h 25mDelta
Fri 11/88:40 amLHR - ONT
2 stops20h 30mDelta
Deal found 5/28$627
Tue 10/296:48 amONT - LHR
1 stop22h 22mAmerican Airlines
Fri 11/811:50 amLHR - ONT
1 stop16h 23mAmerican Airlines
Deal found 5/27$630
Wed 10/168:41 amONT - LHR
1 stop15h 19mBritish Airways
Fri 10/2511:00 amLHR - ONT
1 stop15h 17mBritish Airways
Deal found 5/26$631
Tue 11/56:00 amONT - LHR
2 stops17h 55mDelta
Tue 11/266:30 amLHR - ONT
2 stops20h 52mDelta
Deal found 5/27$632
Sun 10/135:15 amONT - LHR
2 stops17h 15mMultiple Airlines
Wed 10/238:30 amLHR - ONT
2 stops21h 16mMultiple Airlines
Deal found 5/26$637
Wed 10/165:15 amONT - LHR
2 stops17h 15mMultiple Airlines
Tue 10/2210:15 amLHR - ONT
2 stops20h 41mMultiple Airlines
Deal found 5/27$641
Wed 10/231:30 pmONT - LHR
1 stop12h 10mUnited Airlines
Tue 10/2910:05 amLHR - ONT
1 stop14h 35mUnited Airlines
Deal found 5/28$642

Ontario to Heathrow flights leaving soon

Find last-minute flight options from Ontario to Heathrow 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 2,740,132 searches. Data last updated May 28, 2024.
Have a look at some of the flights available from Ontario to London departing last-minute. Tip: verify your flight details before completing your reservation.
Tue 6/46:25 pmONT - LHR
1 stop33h 55mUnited Airlines
Tue 6/114:15 pmLHR - ONT
1 stop14h 12mUnited Airlines
Deal found 5/28$830
Mon 6/36:20 amONT - LHR
1 stop16h 35mUnited Airlines
Thu 6/1311:05 amLHR - ONT
1 stop14h 23mUnited Airlines
Deal found 5/28$837
Mon 6/35:15 amONT - LHR
1 stop23h 05mUnited Airlines
Mon 6/1011:05 amLHR - ONT
1 stop17h 43mUnited Airlines
Deal found 5/27$878
Sun 6/25:50 amONT - LHR
1 stop20h 35mUnited Airlines
Sun 6/94:15 pmLHR - ONT
1 stop14h 12mUnited Airlines
Deal found 5/27$879
Mon 6/31:55 pmONT - LHR
1 stop16h 15mUnited Airlines
Tue 7/168:30 amLHR - ONT
2 stops36h 03mUnited Airlines
Deal found 5/27$880
Mon 6/36:25 pmONT - LHR
2 stops18h 15mUnited Airlines
Tue 7/168:30 amLHR - ONT
2 stops36h 03mUnited Airlines
Deal found 5/27$885
Mon 6/36:20 amONT - LHR
1 stop20h 05mUnited Airlines
Sun 6/94:15 pmLHR - ONT
1 stop14h 12mUnited Airlines
Deal found 5/28$887
Tue 6/42:13 pmONT - LHR
1 stop16h 37mDelta
Thu 7/116:15 amLHR - ONT
2 stops20h 01mDelta
Deal found 5/28$890
Mon 6/311:22 amONT - LHR
1 stop14h 28mVirgin Atlantic
Tue 7/1610:55 amLHR - ONT
1 stop21h 04mVirgin Atlantic
Deal found 5/27$896

One-way flights to Heathrow from Ontario

Search for one-way flight options from Ontario to Heathrow. 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 2,740,132 searches. Data last updated May 28, 2024.
Users in need of a one-way flight from Ontario to London can choose from these deals. Users in need of a round-trip flight from Ontario to London instead should update the search form at the top of page.
Mon 7/1512:49 amONT - LHR
3 stops48h 36mMultiple Airlines
Deal found 5/28$379
Tue 7/168:27 amONT - LHR
3 stops24h 53mMultiple Airlines
Deal found 5/28$395
Mon 7/1512:49 amONT - LHR
2 stops27h 06mMultiple Airlines
Deal found 5/28$420
Tue 7/168:27 amONT - LHR
2 stops19h 28mMultiple Airlines
Deal found 5/28$431
Sat 10/1212:49 amONT - LHR
2 stops27h 06mMultiple Airlines
Deal found 5/27$433
Sun 7/1411:59 pmONT - LHR
2 stops22h 31mJetBlue
Deal found 5/28$444
Sun 10/1311:36 pmONT - LHR
1 stop13h 09mJetBlue
Deal found 5/27$457
Mon 9/306:20 pmONT - LHR
2 stops28h 10mAir Canada
Deal found 5/28$481
Sun 9/2210:50 amONT - LHR
1 stop13h 10mIberia
Deal found 5/28$482

Find flights from Ontario to Heathrow within your budget

Customize your flight search to find flights from Ontario to Heathrow 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 2,740,132 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$614 - $746

Route

Depart

Return

Price

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Mon 10/14

1 stop13h 53m

London Heathrow

Thu 10/24

2 stops22h 11m

$614

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Mon 11/18

1 stop12h 40m

London Heathrow

Tue 12/3

1 stop16h 46m

$624

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Tue 10/29

1 stop15h 25m

London Heathrow

Fri 11/8

2 stops20h 30m

$627

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Tue 10/29

1 stop22h 22m

London Heathrow

Fri 11/8

1 stop16h 23m

$630

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Wed 10/16

1 stop15h 19m

London Heathrow

Fri 10/25

1 stop15h 17m

$631

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Sun 10/13

2 stops17h 15m

London Heathrow

Wed 10/23

2 stops21h 16m

$637

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Mon 9/2

2 stops38h 15m

London Heathrow

Tue 10/1

2 stops39h 47m

$682

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Fri 9/27

1 stop12h 18m

London Heathrow

Wed 10/9

1 stop15h 47m

$683

OntarioLondon Heathrow

ONT - LHR

ONTLHR

Ontario

Wed 9/25

1 stop13h 09m

London Heathrow

Wed 10/23

1 stop22h 40m

$746

Flights are sorted by cheapest first

Deals found on 5/27

When is the best time to book a flight from Ontario to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Heathrow. Price data was last updated on May 24, 2024.
The price you pay for your flight from Ontario to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 27 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from Ontario to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Heathrow. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to London Heathrow Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Heathrow

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

Temperature and rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated May 28, 2024.
See what other customers who have flown with United Airlines, Delta and American Airlines from Ontario to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

KLM
7.9
Good
1,528 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

JetBlue
7.6
Good
4,370 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Virgin Atlantic
7.6
Good
721 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Avianca
7.5
Good
3,661 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Heathrow. 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 Heathrow?

    If you book a flight to London Heathrow from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to London Heathrow per day from 6 different airlines.

  • Can I find flights from Ontario to London Heathrow Airport for under $700 on Cheapflights?

    Yes, there are multiple flights from Ontario to London Heathrow Airport for under $700. The cheapest flight booked recently is on Iberia for just $614, but on average you can expect to pay $653.

  • Are there last-minute flights available from Ontario to London Heathrow Airport for under $900?

    There are currently 20+ open flights from Ontario to London Heathrow Airport within the next 7 days for less than $900.

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

    According to our current data, Iberia ($614), United Airlines ($624), and Delta ($627) offers the cheapest pricing from Ontario to London Heathrow Airport. Iberia is 14% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $444. Air Canada flights start at $481 while deals on Iberia start at $482 one-way.

  • What does ONT to LHR mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ontario Airport to London Heathrow Airport flight would often be abbreviated as a ONT to LHR flight.

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

    The amount of baggage you can bring on your Ontario to Heathrow 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 Ontario to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Heathrow 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 Ontario to Heathrow that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Heathrow 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 Ontario to Heathrow that allow pets onboard?

    Many airlines flying from Ontario to Heathrow 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 Ontario to Heathrow?

    Yes, you can often find last-minute deals on Ontario to Heathrow 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 Ontario to London Heathrow Airport flight deals updated?

    The Ontario to London Heathrow Airport flight deals you see on this page were last updated on 5/28.

  • What are the most popular airlines that fly from Ontario to London Heathrow Airport?

    When booking a flight from Ontario to London Heathrow Airport, you may want to consider flying on American Airlines, British Airways or Delta as they are the most popular for this route.

  • When is the best time to book a flight from Ontario to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Ontario to London Heathrow Airport (average of $652). Flying from Ontario to London Heathrow Airport in June is currently the most expensive (average of $1,114). 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 Ontario to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from Ontario to Heathrow

Discover the top 6 airlines that operate flights from Ontario to Heathrow. 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 2,740,132 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$482Average$691FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest$591Average$667FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest$597Average$891FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest$598Average$818FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$624Average$672FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest$642Average$805FlexibilityNo cancel feeOn-time77%
Search Iberia flights
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Ontario to Lihue flights

Search flights from Ontario to Heathrow by cabin class

Find flights from Ontario to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Book a flight to one of these trending destinations

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Cheapflights makes it easy to find Ontario to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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

Certainly. Search results for flights to Heathrow from Ontario 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 Ontario to Heathrow become cheaper?

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