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Cheap flights from Niagara Falls, ON to London Heathrow Airport from C$ 393

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LHR
6 Jun — 13 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to London Heathrow are usually found in February or January, booked 41 days in advance, depart on a Sunday or Tuesday and return on a Tuesday

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 7 May 2026.

Wed 6/59:00 p.m.
YYZ
-
LHR
1 stop33h 55m
Multiple Airlines
Sat 9/511:05 a.m.
LHR
-
YYZ
2 stops55h 15m
Multiple Airlines
Deal found 6/5C$ 802
Mon 25/58:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Thu 4/61:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Deal found 2/5C$ 817
Sun 10/510:55 p.m.
YYZ
-
LHR
Nonstop7h 15m
Virgin Atlantic
Sat 16/511:45 a.m.
LHR
-
YYZ
1 stop13h 10m
Virgin Atlantic
Deal found 2/5C$ 819
Mon 25/58:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Tue 9/61:05 p.m.
LHR
-
YYZ
1 stop14h 00m
Icelandair
Deal found 2/5C$ 823
Mon 25/58:45 p.m.
YYZ
-
LHR
1 stop10h 10m
Icelandair
Sun 14/69:25 p.m.
LHR
-
YYZ
1 stop26h 45m
Icelandair
Deal found 2/5C$ 825
Mon 1/610:55 p.m.
YYZ
-
LHR
Nonstop7h 15m
Virgin Atlantic
Mon 8/67:15 p.m.
LHR
-
YYZ
1 stop29h 40m
Virgin Atlantic
Deal found 6/5C$ 829
Thu 7/54:05 p.m.
YYZ
-
LHR
1 stop9h 25m
Air Canada
Wed 13/56:00 a.m.
LHR
-
YYZ
1 stop12h 20m
Air Canada
Deal found 6/5C$ 832
Sun 10/56:40 a.m.
YYZ
-
LHR
1 stop9h 20m
Air Canada
Sat 16/56:00 a.m.
LHR
-
YYZ
1 stop15h 15m
Air Canada
Deal found 5/5C$ 833
Fri 12/69:25 p.m.
YYZ
-
LHR
Nonstop7h 10m
Air Canada
Sun 21/66:00 a.m.
LHR
-
YYZ
1 stop11h 50m
Air Canada
Deal found 2/5C$ 836

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 7 May 2026.

Round-trip from

C$ 817

One-way from

C$ 393

Popular in

December

Cheapest in

February

Average price

C$ 856
Icelandair
  • Icelandair
  • 25/5-4/6
  • 2 total stops
  • 24h 10m total
  • Niagara Falls to London
Search Deals
5/6
  • 5/6
  • 1 total stop
  • 16h 15m total
  • Niagara Falls to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 7 May 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

Wed 20/5

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

Nonstop7h 15m

London Heathrow

Mon 25/5

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

1 stop11h 50m

C$ 943

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Wed 3/6

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

1 stop14h 10m

London Heathrow

Sat 27/6

7:45 a.m.-6:31 p.m.

2 stops15h 46m

C$ 965

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 1/9

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

Nonstop7h 15m

London Heathrow

Mon 14/9

11:45 a.m.-7:55 p.m.

1 stop13h 10m

C$ 1,033

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 4/9

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

Nonstop7h 15m

London Heathrow

Fri 11/9

11:45 a.m.-7:55 p.m.

1 stop13h 10m

C$ 1,036

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Thu 11/6

7:25 p.m.-6:25 a.m.

1 stop30h 00m

London Heathrow

Sun 21/6

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

Nonstop8h 05m

C$ 1,056

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 15/9

3:55 p.m.-7:10 a.m.

1 stop10h 15m

London Heathrow

Fri 25/9

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

1 stop11h 50m

C$ 1,070

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 8/9

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

1 stop10h 30m

London Heathrow

Sat 26/9

12:40 p.m.-7:27 p.m.

1 stop11h 47m

C$ 1,111

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Tue 9/6

6:55 p.m.-10:40 a.m.

1 stop10h 45m

London Heathrow

Wed 8/7

4:40 p.m.-11:54 p.m.

1 stop12h 14m

C$ 1,112

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Sat 23/5

3:00 p.m.-7:15 a.m.

1 stop11h 15m

London Heathrow

Fri 17/7

9:30 a.m.-9:35 p.m.

1 stop17h 05m

C$ 1,172

TorontoLondon

YYZ - LHR

YYZLHR

Toronto Pearson Intl

Fri 7/8

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

Nonstop7h 15m

London Heathrow

Mon 17/8

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

1 stop11h 50m

C$ 1,191

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 22 resultsSorted by cheapest first
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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

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 7 May 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 7 May 2026.

The most flights from NI4 to LHR are scheduled on a Tuesday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 7 May 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
7.4
Good
688 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.5

Food

6.9

Crew

8.1

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
7.4
Good
688 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.5

Food

6.9

Crew

8.1

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
11,003 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.5

Food

6.9

Crew

8.1

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
7.0
Good
650 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.5

Food

6.9

Crew

8.1

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
7,975 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.5

Food

6.9

Crew

8.1

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
7,946 reviews
Virgin Atlantic
7.4
Good
688 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.5

Food

6.9

Crew

8.1

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 KLM, United Airlines, and Delta fly from Niagara Falls to London Heathrow Airport in about 7h 15m. The time it takes to get you to your destination can typically vary by up to 6h 55m. 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$ 318), TAP AIR PORTUGAL (C$ 323), and Air Transat (C$ 326).

  • 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 (92%), Air France (92%) or Delta (92%) 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$ 1,869, our data shows the cheapest flight currently is C$ 523. When looking at the most popular route, (Toronto Pearson Intl - London Heathrow), you can expect to pay C$ 802 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.

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
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Slough
Marlow
Cobham
Leamington Spa
Watford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow
Moreton-in-Marsh

Browse thousands of different options on Cheapflights for your next trip

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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 7 May 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 214AverageC$ 216FlexibilityNo cancel feeOn-time60%
Search WestJet flights
TAP AIR PORTUGALCheapestC$ 591AverageC$ 802FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Porter AirlinesCheapestC$ 593AverageC$ 884FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
IcelandairCheapestC$ 648AverageC$ 739FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air TransatCheapestC$ 698AverageC$ 935FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 700AverageC$ 986FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 718AverageC$ 995FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapestC$ 724AverageC$ 871FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapestC$ 736AverageC$ 991FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapestC$ 742AverageC$ 1,024FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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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