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Cheap flights from Niagara Falls, ON to London Heathrow Airport from C$ 398

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
11 Apr — 18 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to London Heathrow are usually found in May or February, 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 12 March 2026.

Tue 7/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Mon 13/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Deal found 8/3C$ 701
Mon 6/411:10 p.m.
YYZ
-
LHR
1 stop31h 45m
Icelandair
Thu 30/41:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Deal found 8/3C$ 702
Tue 7/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Mon 27/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Deal found 10/3C$ 703
Fri 17/411:10 p.m.
YYZ
-
LHR
1 stop16h 10m
Icelandair
Mon 27/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Deal found 7/3C$ 705
Wed 15/411:10 p.m.
YYZ
-
LHR
1 stop16h 10m
Icelandair
Sun 19/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Deal found 7/3C$ 706
Tue 7/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Tue 14/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Deal found 8/3C$ 707
Mon 6/411:10 p.m.
YYZ
-
LHR
1 stop31h 45m
Icelandair
Mon 13/49:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Deal found 9/3C$ 710
Fri 17/48:45 p.m.
YYZ
-
LHR
1 stop18h 35m
Icelandair
Fri 24/49:25 p.m.
LHR
-
YYZ
1 stop29h 40m
Icelandair
Deal found 11/3C$ 711
Fri 3/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Fri 17/49:25 p.m.
LHR
-
YYZ
1 stop29h 40m
Icelandair
Deal found 7/3C$ 713
Tue 9/68:45 p.m.
YYZ
-
LHR
2 stops19h 15m
Multiple Airlines
Tue 16/68:15 a.m.
LHR
-
YYZ
2 stops18h 50m
Multiple Airlines
Deal found 9/3C$ 714
Tue 7/48:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Fri 24/49:25 p.m.
LHR
-
YYZ
1 stop29h 40m
Icelandair
Deal found 10/3C$ 716

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 12 March 2026.

Round-trip from

C$ 701

One-way from

C$ 398

Popular in

December

Cheapest in

May

Average price

C$ 880
Icelandair
  • Icelandair
  • 7/4-13/4
  • 2 total stops
  • 36h 55m total
  • Niagara Falls to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 20/5
  • 1 total stop
  • 11h 40m total
  • Niagara Falls to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 12 March 2026.
Use the filters below to find and compare flights from Niagara Falls to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sat 6/6

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

Nonstop7h 10m

London Heathrow

Sun 14/6

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

Nonstop8h 05m

C$ 965

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 18/6

10:55 p.m.-11:10 a.m.

Nonstop7h 15m

London Heathrow

Tue 23/6

2:45 p.m.-7:55 p.m.

1 stop10h 10m

C$ 976

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 20/4

5:10 p.m.-8:55 a.m.

2 stops34h 45m

London Heathrow

Thu 23/4

7:05 a.m.-3:40 p.m.

2 stops37h 35m

C$ 1,021

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Mon 30/3

11:45 p.m.-11:50 a.m.

Nonstop7h 05m

London Heathrow

Mon 27/4

5:40 p.m.-8:30 p.m.

Nonstop7h 50m

C$ 1,024

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 2/4

1:00 p.m.-8:30 a.m.

1 stop14h 30m

London Heathrow

Sun 12/4

12:15 p.m.-11:49 a.m.

2 stops28h 34m

C$ 1,045

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sat 28/3

5:30 p.m.-8:00 a.m.

1 stop34h 30m

London Heathrow

Sat 18/4

12:15 p.m.-10:15 a.m.

2 stops27h 00m

C$ 1,045

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sun 23/8

10:55 p.m.-5:45 p.m.

1 stop13h 50m

London Heathrow

Fri 28/8

6:00 a.m.-2:15 p.m.

1 stop13h 15m

C$ 1,077

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sat 23/5

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

Nonstop7h 10m

London Heathrow

Mon 25/5

1:15 p.m.-4:05 p.m.

Nonstop7h 50m

C$ 1,089
Quickest round-trip

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 28/5

11:45 p.m.-11:50 a.m.

Nonstop7h 05m

London Heathrow

Tue 9/6

12:05 p.m.-2:40 p.m.

Nonstop7h 35m

C$ 1,089

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 20/8

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

2 stops29h 00m

London Heathrow

Mon 31/8

7:05 a.m.-3:40 p.m.

2 stops37h 35m

C$ 1,173

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/3

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 6 March 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, May 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$ 896). 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 12 March 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 12 March 2026.

The most flights from NI4 to LHR are scheduled on a Wednesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 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 12 March 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
680 reviews
Check prices

Comfort

7.3

Crew

8.2

Food

6.9

Boarding

7.7

Entertainment

7.6

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
680 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Crew

8.2

Food

6.9

Boarding

7.7

Entertainment

7.6

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
10,800 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Crew

8.2

Food

6.9

Boarding

7.7

Entertainment

7.6

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
620 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Crew

8.2

Food

6.9

Boarding

7.7

Entertainment

7.6

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
7,846 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Crew

8.2

Food

6.9

Boarding

7.7

Entertainment

7.6

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
7,784 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Crew

8.2

Food

6.9

Boarding

7.7

Entertainment

7.6

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 British Airways, KLM, and Scandinavian Airlines fly from Niagara Falls to London Heathrow Airport in about 7h 10m. The time it takes to get you to your destination can typically vary by up to 27h 35m. 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 WestJet (C$ 317), TAP AIR PORTUGAL (C$ 322), and Air Transat (C$ 325).

  • 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 SriLankan Airlines (70%), American Airlines (70%) or Aer Lingus (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$ 1,922, our data shows the cheapest flight currently is C$ 519. When looking at the most popular route, (Toronto Pearson Intl - London Heathrow), you can expect to pay C$ 706 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, May 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$ 896). 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
Twickenham
Sutton
Gatwick
Slough
Marlow
Cobham
Leamington Spa
Romford
Watford
Bedford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow
Moreton-in-Marsh

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 12 March 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 216AverageC$ 216FlexibilityNo cancel feeOn-time60%
Search WestJet flights
WestJet EncoreCheapestC$ 542AverageC$ 691FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights
TAP AIR PORTUGALCheapestC$ 590AverageC$ 759FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Porter AirlinesCheapestC$ 610AverageC$ 878FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
IcelandairCheapestC$ 646AverageC$ 739FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 679AverageC$ 905FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 696AverageC$ 896FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapestC$ 699AverageC$ 948FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapestC$ 701AverageC$ 845FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapestC$ 704AverageC$ 958FlexibilityNo 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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