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Cheap flights from Niagara Falls to London Heathrow Airport from C$ 367

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
19 Aug — 26 Aug1
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 Wednesday

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 14 August 2025.

Round-trip from

C$ 727

One-way from

C$ 367

Popular in

December

Cheapest in

February

Average price

C$ 1,079
Air Canada
  • Air Canada
  • 29/9-7/10
  • 3 total stops
  • 23h 43m total
  • Niagara Falls to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 4/9
  • 1 total stop
  • 17h 15m total
  • Niagara Falls to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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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 14 August 2025.

Mon 6/108:30 p.m.YYZ - LHR
Nonstop7h 05mAir Canada
Mon 20/105:40 p.m.LHR - YYZ
Nonstop7h 50mAir Canada
Deal found 14/8C$ 725
Wed 5/114:00 p.m.YYZ - LHR
1 stop10h 10mAir Canada
Fri 21/119:00 a.m.LHR - YYZ
2 stops14h 50mAir Canada
Deal found 14/8C$ 727
Sun 28/98:30 p.m.YYZ - LHR
Nonstop7h 05mAir Canada
Sun 5/1012:40 p.m.LHR - YYZ
1 stop10h 45mAir Canada
Deal found 14/8C$ 728
Sun 28/94:30 p.m.YYZ - LHR
1 stop9h 00mMultiple Airlines
Tue 7/1012:40 p.m.LHR - YYZ
1 stop11h 45mMultiple Airlines
Deal found 14/8C$ 729
Wed 5/114:00 p.m.YYZ - LHR
1 stop10h 10mMultiple Airlines
Sun 16/117:40 a.m.LHR - YYZ
1 stop12h 15mMultiple Airlines
Deal found 13/8C$ 731
Tue 14/1011:35 p.m.YYZ - LHR
Nonstop7h 15mMultiple Airlines
Tue 21/106:55 a.m.LHR - YYZ
1 stop13h 00mMultiple Airlines
Deal found 14/8C$ 732
Sun 21/98:30 p.m.YYZ - LHR
Nonstop7h 05mAir Canada
Fri 26/95:40 p.m.LHR - YYZ
Nonstop7h 50mAir Canada
Deal found 14/8C$ 733
Sun 28/98:30 p.m.YYZ - LHR
Nonstop7h 05mAir Canada
Tue 7/108:30 a.m.LHR - YYZ
Nonstop7h 55mAir Canada
Deal found 14/8C$ 735
Thu 13/117:40 p.m.YYZ - LHR
1 stop18h 50mIcelandair
Sat 22/1112:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Deal found 14/8C$ 736
Sat 6/911:00 p.m.YYZ - LHR
1 stop31h 55mIcelandair
Sun 30/1112:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Deal found 13/8C$ 738
Wed 10/1210:45 p.m.YYZ - LHR
1 stop17h 50mTAP AIR PORTUGAL
Mon 15/128:15 a.m.LHR - YYZ
1 stop18h 00mTAP AIR PORTUGAL
Deal found 13/8C$ 739
Mon 3/117:40 p.m.YYZ - LHR
1 stop10h 10mIcelandair
Mon 10/1112:15 p.m.LHR - YYZ
1 stop11h 00mIcelandair
Deal found 14/8C$ 740

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 14 August 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

Sun 12/10

4:00 p.m.-6:30 a.m.

1 stop9h 30m

London Heathrow

Sun 26/10

7:40 a.m.-3:55 p.m.

1 stop12h 15m

C$ 731

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 17/10

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

Nonstop7h 10m

London Heathrow

Thu 23/10

9:55 a.m.-7:55 p.m.

1 stop15h 00m

C$ 742

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 13/10

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

Nonstop7h 10m

London Heathrow

Thu 23/10

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

1 stop11h 50m

C$ 743

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 20/11

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

Nonstop7h 20m

London Heathrow

Sun 23/11

8:15 p.m.-2:55 p.m.

1 stop23h 40m

C$ 744

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 7/11

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

Nonstop7h 20m

London Heathrow

Sat 15/11

8:15 p.m.-2:55 p.m.

1 stop23h 40m

C$ 744

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 22/9

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

Nonstop7h 10m

London Heathrow

Wed 1/10

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

Nonstop7h 50m

C$ 750

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 12/12

9:15 p.m.-9:35 a.m.

Nonstop7h 20m

London Heathrow

Fri 26/12

8:55 a.m.-8:35 p.m.

1 stop16h 40m

C$ 750

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 15/10

4:00 p.m.-6:30 a.m.

1 stop9h 30m

London Heathrow

Wed 29/10

6:00 p.m.-10:10 p.m.

Nonstop8h 10m

C$ 750

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 5/11

5:00 p.m.-7:10 a.m.

1 stop9h 10m

London Heathrow

Wed 12/11

6:00 p.m.-9:10 p.m.

Nonstop8h 10m

C$ 750

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 20/11

5:00 p.m.-7:10 a.m.

1 stop9h 10m

London Heathrow

Sun 30/11

6:00 p.m.-9:10 p.m.

Nonstop8h 10m

C$ 750

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

Showing 1-10 of 23 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 8 August 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$ 856). 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 14 August 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. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Niagara Falls to London Heathrow Airport

Explore weekly flight availability from Niagara Falls to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 August 2025.

The most flights from NI4 to LHR are scheduled on a Thursday (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 on average).

How much does it cost to fly round-trip from Niagara Falls to London Heathrow Airport?

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 14 August 2025.
Read through reviews of airlines operating flights from Niagara Falls to London Heathrow Airport, such as Virgin Atlantic,Air Canada, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.4
Good
657 reviews
Check prices

Overall

7.4

Entertainment

7.5

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row
Virgin Atlantic
7.4
Good
657 reviews
Virgin Atlantic
7.4
Good
657 reviews
Check prices

Overall

7.4

Entertainment

7.5

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row
Air Canada
7.1
Good
9,949 reviews
Virgin Atlantic
7.4
Good
657 reviews
Check prices

Overall

7.4

Entertainment

7.5

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row
Icelandair
7.0
Good
526 reviews
Virgin Atlantic
7.4
Good
657 reviews
Check prices

Overall

7.4

Entertainment

7.5

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row
Lufthansa
6.8
Okay
7,317 reviews
Virgin Atlantic
7.4
Good
657 reviews
Check prices

Overall

7.4

Entertainment

7.5

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row
British Airways
6.7
Okay
7,266 reviews
Virgin Atlantic
7.4
Good
657 reviews
Check prices

Overall

7.4

Entertainment

7.5

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.9

Reviews

1 / 20
10.0
Excellent

Jorge,Jun 2025

SFO - LHR

Exceptional, the flight attendant were amazing. My economy delight seat was very comfortable, and I was fortunate enough to have an empty row

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 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 KLM (85%), Air France (85%) or Delta (85%) 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$ 2,066, our data shows the cheapest flight currently is C$ 415. When looking at the most popular route, (Toronto Pearson Intl - London Heathrow), you can expect to pay C$ 698 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$ 856). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Brentford
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bromley
Luton
Bedford
Southall

Browse thousands of different options on Cheapflights for your next trip

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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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Ottawa to Southend flights
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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 14 August 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 219AverageC$ 225FlexibilityNo cancel feeOn-time60%
Search WestJet flights
PLAYCheapestC$ 510AverageC$ 634FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
WestJet EncoreCheapestC$ 550AverageC$ 702FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
TAP AIR PORTUGALCheapestC$ 595AverageC$ 689FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapestC$ 619AverageC$ 840FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Porter AirlinesCheapestC$ 628AverageC$ 810FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 650AverageC$ 956FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 681AverageC$ 826FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapestC$ 698AverageC$ 865FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 704AverageC$ 951FlexibilityNo cancel feeOn-time67%
Search Air Canada 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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