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Cheap flights from Niagara Falls to London Heathrow Airport from C$ 364

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 16/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
5 jul. — 12 jul.1
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 30 junio 2025.

Round-trip from

C$ 721

One-way from

C$ 364

Popular in

December

Cheapest in

February

Average price

C$ 986
Icelandair
  • Icelandair
  • 4/9-17/12
  • 2 total stops
  • 58h 20m total
  • Niagara Falls to London
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 16/7
  • 1 total stop
  • 24h 15m total
  • Niagara Falls to London
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Highest demand for flights based on searches. 4% potential increase in price (C$ 58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 44 potential savings vs. average RT price).
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Average for round-trip flights in June 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 30 junio 2025.

jue. 4/911:00 p.m.YYZ - LHR
1 stop31h 55mIcelandair
mié. 17/128:35 p.m.LHR - YYZ
1 stop26h 25mIcelandair
Deal found 29/6C$ 721
vie. 19/93:00 p.m.YYZ - LHR
1 stop10h 30mAir Canada
dom. 28/96:00 a.m.LHR - YYZ
1 stop11h 50mAir Canada
Deal found 29/6C$ 728
mar. 19/85:40 p.m.YYZ - LHR
1 stop14h 05mTAP AIR PORTUGAL
dom. 21/94:35 p.m.LHR - YYZ
1 stop33h 25mTAP AIR PORTUGAL
Deal found 28/6C$ 736
mar. 14/1010:30 p.m.YYZ - LHR
Nonstop7h 10mVirgin Atlantic
vie. 24/106:30 a.m.LHR - YYZ
1 stop11h 50mVirgin Atlantic
Deal found 29/6C$ 744
mar. 2/1210:40 p.m.YYZ - LHR
Nonstop7h 00mDelta
mié. 10/126:30 a.m.LHR - YYZ
1 stop14h 10mDelta
Deal found 28/6C$ 746
mié. 1/102:00 p.m.YYZ - LHR
1 stop13h 35mLufthansa
dom. 2/116:00 p.m.LHR - YYZ
Nonstop8h 10mLufthansa
Deal found 30/6C$ 754
jue. 25/95:20 p.m.YYZ - LHR
1 stop9h 40mAer Lingus
dom. 12/109:50 a.m.LHR - YYZ
1 stop11h 00mAer Lingus
Deal found 29/6C$ 761

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 30 junio 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

jue. 4/9

11:00 p.m.-11:55 a.m.

1 stop31h 55m

London Heathrow

mar. 16/12

8:35 p.m.-6:00 p.m.

1 stop26h 25m

C$ 721

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

vie. 19/9

3:00 p.m.-6:30 a.m.

1 stop10h 30m

London Heathrow

dom. 28/9

6:00 a.m.-12:50 p.m.

1 stop11h 50m

C$ 728

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

mar. 19/8

5:40 p.m.-12:45 p.m.

1 stop14h 05m

London Heathrow

dom. 21/9

4:35 p.m.-9:00 p.m.

1 stop33h 25m

C$ 736

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

mar. 14/10

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

Nonstop7h 10m

London Heathrow

mié. 22/10

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

1 stop15h 00m

C$ 744

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

mié. 1/10

2:00 p.m.-8:35 a.m.

1 stop13h 35m

London Heathrow

lun. 3/11

9:00 a.m.-3:00 p.m.

1 stop11h 00m

C$ 754

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

jue. 25/9

5:20 p.m.-8:00 a.m.

1 stop9h 40m

London Heathrow

dom. 12/10

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

1 stop11h 00m

C$ 761

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

mié. 16/7

5:40 p.m.-10:55 p.m.

1 stop24h 15m

C$ 364

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

lun. 29/9

10:10 p.m.-5:40 p.m.

2 stops14h 30m

C$ 393

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

lun. 7/7

8:20 p.m.-6:30 a.m.

1 stop29h 10m

C$ 410

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

mié. 17/9

6:20 p.m.-6:35 a.m.

Nonstop7h 15m

C$ 413

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/6

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 27 June 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 30 junio 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 30 junio 2025.

The most flights from NI4 to LHR are scheduled on a Sunday (45 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (23 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 30 junio 2025.
Read through reviews of airlines operating flights from Niagara Falls to London Heathrow Airport, such as Delta,Air Canada, andAer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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
7,973 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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.
Air Canada
7.1
Good
9,654 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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.
Aer Lingus
7.1
Good
1,140 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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.
TAP AIR PORTUGAL
7.1
Good
1,911 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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.
Icelandair
7.0
Good
513 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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$ 364), Air Canada (C$ 410), and Lufthansa (C$ 413).

  • 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 Croatia Airlines (88%), KLM (85%) or Air France (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$ 2,118, our data shows the cheapest flight currently is C$ 419. When looking at the most popular route, (Toronto Pearson Intl - London Heathrow), you can expect to pay C$ 663 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 Niagara Falls?

Book flights to Niagara Falls if you plan to visit one of these locations
Brentford
Sutton
Hounslow
Slough
Leamington Spa
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 30 junio 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 506AverageC$ 628FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
WestJet EncoreCheapestC$ 546AverageC$ 696FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
TAP AIR PORTUGALCheapestC$ 591AverageC$ 664FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapestC$ 614AverageC$ 848FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Porter AirlinesCheapestC$ 623AverageC$ 786FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 646AverageC$ 942FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
DeltaCheapestC$ 664AverageC$ 857FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Aer LingusCheapestC$ 669AverageC$ 792FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapestC$ 701AverageC$ 956FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
KLMCheapestC$ 703AverageC$ 847FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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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