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Cheap flights from Niagara Falls to London Heathrow Airport from C$ 350

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
31 Mar — 7 Apr1
1 adult

Cheapflights Tip: The best prices from Niagara Falls to London Heathrow are usually found in February or January, booked 81 days in advance, depart on a Sunday or Friday and return on a Friday

Cheap flight deals from Niagara Falls to Heathrow

Keep the following information in mind while searching for Niagara Falls to Heathrow flight deals. Data was last updated 26 March 2025.

Round-trip from

C$ 672

One-way from

C$ 356

Popular in

December

Cheapest in

February

Average price

C$ 874
Icelandair
  • Icelandair
  • 24/4-29/4
  • 2 total stops
  • 43h 05m total
  • Niagara Falls to London
Search Deals
8/6
  • 8/6
  • 1 total stop
  • 19h 05m total
  • Niagara Falls to London
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Niagara Falls to Heathrow

Cheapest flights from Niagara Falls to Heathrow
Explore the most affordable flight options available from Niagara Falls to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2025.

Thu 24/411:00 p.m.YYZ - LHR
1 stop16h 20mIcelandair
Tue 29/49:25 p.m.LHR - YYZ
1 stop26h 45mIcelandair
Deal found 25/3C$ 672
Thu 8/56:20 p.m.YYZ - LHR
Nonstop7h 15mMultiple Airlines
Thu 15/56:00 a.m.LHR - YYZ
1 stop15h 25mMultiple Airlines
Deal found 26/3C$ 691
Mon 5/511:35 p.m.YYZ - LHR
Nonstop7h 15mAir Canada
Fri 9/58:40 a.m.LHR - YYZ
1 stop12h 45mAir Canada
Deal found 25/3C$ 704
Sun 8/66:05 p.m.YYZ - LHR
Nonstop7h 10mBritish Airways
Mon 16/65:15 p.m.LHR - YYZ
Nonstop7h 55mBritish Airways
Deal found 25/3C$ 722
Sun 27/411:35 p.m.YYZ - LHR
Nonstop7h 15mLufthansa
Wed 14/56:55 a.m.LHR - YYZ
1 stop12h 35mLufthansa
Deal found 25/3C$ 738
Mon 7/45:25 p.m.YYZ - LHR
1 stop9h 35mAer Lingus
Wed 23/49:50 a.m.LHR - YYZ
1 stop10h 50mAer Lingus
Deal found 25/3C$ 744
Mon 28/46:05 p.m.YYZ - LHR
Nonstop7h 10mAmerican Airlines
Mon 5/51:20 p.m.LHR - YYZ
Nonstop7h 40mAmerican Airlines
Deal found 25/3C$ 749
Fri 2/54:00 p.m.YYZ - LHR
2 stops13h 40mUnited Airlines
Sat 10/57:45 a.m.LHR - YYZ
2 stops15h 30mUnited Airlines
Deal found 24/3C$ 818
Tue 1/410:30 p.m.YYZ - LHR
Nonstop7h 10mDelta
Thu 10/46:30 a.m.LHR - YYZ
1 stop11h 50mDelta
Deal found 25/3C$ 830
Wed 2/48:20 p.m.YYZ - LHR
1 stop15h 05mSWISS
Tue 15/46:00 a.m.LHR - YYZ
1 stop15h 20mSWISS
Deal found 25/3C$ 850
Thu 3/45:05 p.m.YYZ - LHR
1 stop12h 10mKLM
Wed 23/411:45 a.m.LHR - YYZ
1 stop13h 10mKLM
Deal found 25/3C$ 868

Cheapflights Fare Finder

Customize your flight search to find flights from Niagara Falls 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 629,999 searches. Data last updated 26 March 2025.
Use the filters below to find and compare flights from Niagara Falls to London Heathrow Airport that are best for you.

Fly from

Niagara Falls

Fly to

Heathrow

Route

Depart

Return

Price

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 24/4

11:00 p.m.-8:20 p.m.

1 stop16h 20m

London Heathrow

Tue 29/4

9:25 p.m.-7:10 p.m.

1 stop26h 45m

C$ 672

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 5/5

11:35 p.m.-11:50 a.m.

Nonstop7h 15m

London Heathrow

Fri 9/5

8:40 a.m.-4:25 p.m.

1 stop12h 45m

C$ 704

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 5/5

11:35 p.m.-11:50 a.m.

Nonstop7h 15m

London Heathrow

Tue 13/5

6:00 a.m.-4:25 p.m.

1 stop15h 25m

C$ 707

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sat 17/5

6:25 p.m.-6:35 a.m.

Nonstop7h 10m

London Heathrow

Sat 31/5

5:15 p.m.-8:10 p.m.

Nonstop7h 55m

C$ 722

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 27/4

4:00 p.m.-10:00 a.m.

1 stop13h 00m

London Heathrow

Wed 14/5

7:25 a.m.-2:30 p.m.

1 stop12h 05m

C$ 738

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 7/4

5:25 p.m.-8:00 a.m.

1 stop9h 35m

London Heathrow

Wed 23/4

9:50 a.m.-3:40 p.m.

1 stop10h 50m

C$ 744

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 28/4

6:05 p.m.-6:15 a.m.

Nonstop7h 10m

London Heathrow

Fri 16/5

5:15 p.m.-8:10 p.m.

Nonstop7h 55m

C$ 749

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 2/5

5:20 p.m.-11:25 a.m.

1 stop13h 05m

London Heathrow

Sat 10/5

6:50 a.m.-7:00 p.m.

2 stops17h 10m

C$ 818

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 10/4

10:30 p.m.-10:40 a.m.

Nonstop7h 10m

London Heathrow

Tue 15/4

6:30 a.m.-1:20 p.m.

1 stop11h 50m

C$ 830

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 4/4

10:30 p.m.-10:40 a.m.

Nonstop7h 10m

London Heathrow

Tue 22/4

5:50 p.m.-8:40 p.m.

Nonstop7h 50m

C$ 838

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

Showing 1-10 of 21 results
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Best time to book a flight from Niagara Falls to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Niagara Falls 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 Niagara Falls to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to Heathrow. Price data was last updated on 21 March 2025.

The price you pay for your flight from Niagara Falls to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Niagara Falls to London Heathrow Airport (average of C$ 560). Flying from Niagara Falls to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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 NI4 to LHR?

Find hourly flight availability from Niagara Falls to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Niagara Falls to London Heathrow Airport as you normally would.

What is the cheapest day to fly from Niagara Falls to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Niagara Falls to Heathrow. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Niagara Falls to London Heathrow Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 26 March 2025.
Read reviews from past customers who have flown Delta, KLM and Azores Airlines from Niagara Falls to London. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,319 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Azores Airlines
7.6
Good
63 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Overall

8.0

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airlines for a one-way flight from Niagara Falls to London Heathrow Airport are TAP AIR PORTUGAL (C$ 423), Air Canada (C$ 489), and Azores Airlines (C$ 501).

  • What are the most reliable airlines from Niagara Falls to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Niagara Falls to London Heathrow Airport consider choosing American Airlines (70%), Aer Lingus (70%) or Finnair (70%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Niagara Falls to London Heathrow Airport?

    While on average a flight from Niagara Falls to London Heathrow Airport is generally C$ 3,044, our data shows the cheapest flight currently is C$ 504. When looking at the most popular route, (Toronto Pearson Intl - London Heathrow), you can expect to pay C$ 668 for that flight.

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

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

  • How can I find direct flights from Niagara Falls to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Niagara Falls 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.

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

    Currently, January is the cheapest month in which you can book a flight from Niagara Falls to London Heathrow Airport (average of C$ 560). Flying from Niagara Falls to London Heathrow Airport in July is currently the most expensive (average of C$ 874). 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

Travelling to a place near Niagara Falls?

Book flights to Niagara Falls if you plan to visit one of these locations
Brentford
Hounslow
Sutton
Slough
Milton Keynes
Romford
Watford
Luton
Bromley
Bedford
Southall

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Alternative routes for Niagara Falls to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Niagara Falls to Heathrow

Discover the top 10 airlines that operate flights from Niagara Falls 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 629,999 searches. Data last updated 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapestC$ 503AverageC$ 1,118FlexibilityNo cancel feeOn-time76%
Search Finnair flights
PLAYCheapestC$ 530AverageC$ 680FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
TAP AIR PORTUGALCheapestC$ 549AverageC$ 689FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapestC$ 638AverageC$ 927FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapestC$ 666AverageC$ 835FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Porter AirlinesCheapestC$ 672AverageC$ 834FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 694AverageC$ 896FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air TransatCheapestC$ 719AverageC$ 959FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 733AverageC$ 1,006FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 735AverageC$ 877FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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

How does Cheapflights help users find flights from Niagara Falls to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Niagara Falls to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights from Niagara Falls to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Niagara Falls to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Niagara Falls to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Niagara Falls to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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