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Cheap flights from Niagara Falls, ON to London Heathrow Airport from C$ 446

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
8 Mar — 15 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to London Heathrow are usually found in February or May, booked 52 days in advance, depart on a Sunday or Friday and return on a Friday

Cheap flight deals from Niagara Falls to Heathrow

Enter your travel dates to find the best prices.

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 6 February 2026.

Sun 1/37:40 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Wed 11/312:15 p.m.
LHR
-
YYZ
1 stop11h 00m
Icelandair
Deal found 2/2C$ 699
Wed 25/27:40 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Thu 5/312:15 p.m.
LHR
-
YYZ
1 stop11h 00m
Icelandair
Deal found 2/2C$ 701
Thu 9/45:35 p.m.
YYZ
-
LHR
1 stop12h 25m
Multiple Airlines
Mon 27/46:20 a.m.
LHR
-
YYZ
1 stop12h 00m
Multiple Airlines
Deal found 5/2C$ 705
Sun 1/37:40 p.m.
YYZ
-
LHR
1 stop18h 50m
Icelandair
Sun 8/38:35 p.m.
LHR
-
YYZ
1 stop26h 40m
Icelandair
Deal found 3/2C$ 706
Wed 15/48:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Thu 30/41:05 p.m.
LHR
-
YYZ
1 stop11h 05m
Icelandair
Deal found 5/2C$ 709
Wed 15/45:35 p.m.
YYZ
-
LHR
1 stop11h 45m
Multiple Airlines
Mon 20/48:50 p.m.
LHR
-
YYZ
2 stops22h 25m
Multiple Airlines
Deal found 3/2C$ 710
Wed 15/48:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Tue 21/41:05 p.m.
LHR
-
YYZ
1 stop11h 05m
Icelandair
Deal found 4/2C$ 712
Wed 1/411:10 p.m.
YYZ
-
LHR
1 stop31h 45m
Icelandair
Wed 15/49:25 p.m.
LHR
-
YYZ
1 stop29h 40m
Icelandair
Deal found 4/2C$ 713
Fri 17/48:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Mon 20/41:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Deal found 4/2C$ 714
Wed 8/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Thu 23/41:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Deal found 3/2C$ 716
Mon 6/45:45 p.m.
YYZ
-
LHR
1 stop11h 35m
TAP AIR PORTUGAL
Tue 14/47:50 p.m.
LHR
-
YYZ
1 stop23h 10m
TAP AIR PORTUGAL
Deal found 3/2C$ 717
Tue 21/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Wed 29/41:05 p.m.
LHR
-
YYZ
1 stop11h 05m
Icelandair
Deal found 5/2C$ 718

Find 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 6 February 2026.

Round-trip from

C$ 699

One-way from

C$ 446

Popular in

December

Cheapest in

February

Average price

C$ 773
Icelandair
  • Icelandair
  • 1/3-11/3
  • 2 total stops
  • 21h 10m total
  • Niagara Falls to London
Search Deals
WestJet
  • WestJet
  • 4/3
  • 1 total stop
  • 24h 05m total
  • Niagara Falls to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 6 February 2026.
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

Sat 18/4

8:45 p.m.-8:20 p.m.

1 stop18h 35m

London Heathrow

Mon 27/4

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

1 stop26h 45m

C$ 751

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 6/5

11:10 p.m.-8:20 p.m.

1 stop16h 10m

London Heathrow

Tue 19/5

9:25 p.m.-10:05 p.m.

1 stop29h 40m

C$ 773

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 11/6

5:35 p.m.-11:00 a.m.

1 stop12h 25m

London Heathrow

Sun 14/6

7:50 p.m.-3:15 p.m.

1 stop24h 25m

C$ 792

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 5/4

11:05 p.m.-11:10 a.m.

Nonstop7h 05m

London Heathrow

Sat 25/4

5:45 p.m.-8:35 p.m.

Nonstop7h 50m

C$ 796

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 27/4

11:05 p.m.-11:10 a.m.

Nonstop7h 05m

London Heathrow

Tue 5/5

5:45 p.m.-8:35 p.m.

Nonstop7h 50m

C$ 796

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 21/4

11:05 p.m.-11:10 a.m.

Nonstop7h 05m

London Heathrow

Wed 29/4

5:45 p.m.-8:35 p.m.

Nonstop7h 50m

C$ 796

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sat 4/4

11:05 p.m.-11:10 a.m.

Nonstop7h 05m

London Heathrow

Sat 2/5

5:45 p.m.-8:35 p.m.

Nonstop7h 50m

C$ 796

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 28/4

11:05 p.m.-11:10 a.m.

Nonstop7h 05m

London Heathrow

Tue 5/5

5:45 p.m.-8:35 p.m.

Nonstop7h 50m

C$ 796

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 21/4

11:05 p.m.-11:10 a.m.

Nonstop7h 05m

London Heathrow

Thu 30/4

5:45 p.m.-8:35 p.m.

Nonstop7h 50m

C$ 799

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 21/4

11:05 p.m.-11:10 a.m.

Nonstop7h 05m

London Heathrow

Fri 1/5

5:45 p.m.-8:35 p.m.

Nonstop7h 50m

C$ 799

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/2

Showing 1-10 of 24 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 30 January 2026.

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 52 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, March is the cheapest month in which you can book a flight from Niagara Falls to London Heathrow Airport (average of C$ 660). Flying from Niagara Falls to London Heathrow Airport in July is currently the most expensive (average of C$ 911). 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 6 February 2026.

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.

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 6 February 2026.

The most flights from NI4 to LHR are scheduled on a Thursday (35 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (18 on average).

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 6 February 2026.
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
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
678 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Air Canada
7.1
Good
10,697 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Icelandair
7.1
Good
606 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,762 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,716 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Entertainment

7.6

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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.

  • How long is the flight from Niagara Falls to London Heathrow Airport?

    Airlines like Icelandair, TAP AIR PORTUGAL, and Delta fly from Niagara Falls to London Heathrow Airport in about 7h 05m. The time it takes to get you to your destination can typically vary by up to 11h 30m. The distance from Niagara Falls to London Heathrow Airport is about 5702 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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$ 324), Air Transat (C$ 328), and WestJet (C$ 346).

  • 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 (56%), Aer Lingus (56%) or Finnair (56%) 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$ 2,059, our data shows the cheapest flight currently is C$ 511. When looking at the most popular route, (Toronto Pearson Intl - London Heathrow), you can expect to pay C$ 647 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, March is the cheapest month in which you can book a flight from Niagara Falls to London Heathrow Airport (average of C$ 660). Flying from Niagara Falls to London Heathrow Airport in July is currently the most expensive (average of C$ 911). 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
Sutton
Twickenham
Gatwick
Slough
Marlow
Cobham
Milton Keynes
Leamington Spa
Romford
Watford
Bedford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 6 February 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 217AverageC$ 217FlexibilityNo cancel feeOn-time60%
Search WestJet flights
WestJet EncoreCheapestC$ 546AverageC$ 696FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
TAP AIR PORTUGALCheapestC$ 595AverageC$ 751FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Porter AirlinesCheapestC$ 596AverageC$ 853FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
IcelandairCheapestC$ 652AverageC$ 770FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 657AverageC$ 894FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 701AverageC$ 909FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 703AverageC$ 961FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Aer LingusCheapestC$ 707AverageC$ 859FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapestC$ 709AverageC$ 946FlexibilityNo cancel feeOn-time70%
Search British Airways 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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