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Cheap flights from London Heathrow Airport to Niagara Falls, Ontario from £252

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YYZ
6 Jun — 13 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Niagara Falls are usually found in September or October, booked 43 days in advance, depart on a Friday or Thursday and return on a Sunday

Cheap flight deals from Heathrow to Niagara Falls

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Niagara Falls
Explore the most affordable flight options available from Heathrow to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 May 2026.

Tue 22/913:05
LHR
-
YYZ
1 stop11h 05m
Icelandair
Wed 30/920:45
YYZ
-
LHR
1 stop10h 10m
Icelandair
Deal found 3/5£416
Mon 5/1021:25
LHR
-
YYZ
1 stop26h 45m
Icelandair
Fri 9/1020:45
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 3/5£416
Mon 28/921:25
LHR
-
YYZ
1 stop26h 45m
Icelandair
Mon 12/1020:45
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 4/5£417
Sun 10/521:25
LHR
-
YYZ
1 stop26h 45m
Icelandair
Sun 17/523:10
YYZ
-
LHR
1 stop16h 10m
Icelandair
Deal found 3/5£418
Sat 13/614:10
LHR
-
YYZ
1 stop27h 55m
Air Canada
Sun 14/618:30
YYZ
-
LHR
Nonstop7h 05m
Air Canada
Deal found 3/5£418
Sat 27/614:10
LHR
-
YYZ
1 stop31h 58m
Air Canada
Mon 29/612:45
YYZ
-
LHR
1 stop13h 10m
Air Canada
Deal found 6/5£419
Tue 12/521:25
LHR
-
YYZ
1 stop26h 45m
Icelandair
Sun 17/523:10
YYZ
-
LHR
1 stop31h 45m
Icelandair
Deal found 6/5£420
Sun 10/521:25
LHR
-
YYZ
1 stop26h 45m
Icelandair
Thu 14/523:10
YYZ
-
LHR
1 stop16h 10m
Icelandair
Deal found 3/5£421
Mon 7/921:25
LHR
-
YYZ
1 stop26h 45m
Icelandair
Wed 16/920:45
YYZ
-
LHR
1 stop18h 35m
Icelandair
Deal found 4/5£423
Wed 2/913:05
LHR
-
YYZ
1 stop14h 00m
Icelandair
Wed 23/923:10
YYZ
-
LHR
1 stop16h 10m
Icelandair
Deal found 6/5£424

Find flight deals from Heathrow to Niagara Falls

Keep the following information in mind while searching for Heathrow to Niagara Falls flight deals. Data was last updated 7 May 2026.

Round-trip from

£416

One-way from

£252

Popular in

December

Cheapest in

September

Average price

£455
Icelandair
  • Icelandair
  • 22/9-30/9
  • 2 total stops
  • 21h 15m total
  • London to Niagara Falls
Search Deals
13/5
  • 13/5
  • 2 total stops
  • 30h 25m total
  • London to Niagara Falls
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Niagara Falls 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 858,174 searches. Data last updated 7 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Niagara Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Mon 28/9

21:25-19:10

1 stop26h 45m

Toronto Pearson Intl

Fri 2/10

23:10-20:20

1 stop16h 10m

£476

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Mon 21/9

07:30-19:00

2 stops16h 30m

Toronto Pearson Intl

Wed 30/9

11:00-05:55

2 stops13h 55m

£504

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Mon 7/9

17:45-20:35

Nonstop7h 50m

Toronto Pearson Intl

Sun 13/9

22:55-11:10

Nonstop7h 15m

£505

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Wed 10/6

21:25-22:05

1 stop29h 40m

Toronto Pearson Intl

Sun 14/6

20:45-11:55

1 stop10h 10m

£541

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 29/10

08:40-23:00

2 stops18h 20m

Toronto Pearson Intl

Sat 14/11

18:45-13:45

1 stop14h 00m

£544
Fastest return journey

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sun 21/6

08:30-11:15

Nonstop7h 45m

Toronto Pearson Intl

Tue 30/6

23:50-11:50

Nonstop7h 00m

£548

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Fri 26/6

12:40-18:30

1 stop10h 50m

Toronto Pearson Intl

Mon 6/7

16:05-06:30

1 stop9h 25m

£549

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Sat 4/7

17:40-20:30

Nonstop7h 50m

Toronto Pearson Intl

Thu 9/7

16:05-06:30

1 stop9h 25m

£549

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Tue 2/6

12:40-19:34

1 stop11h 54m

Toronto Pearson Intl

Fri 12/6

21:25-09:35

Nonstop7h 10m

£551

LondonToronto

LHR - YYZ

LHRYYZ

London Heathrow

Thu 4/6

06:30-13:20

1 stop11h 50m

Toronto Pearson Intl

Mon 8/6

22:55-11:10

Nonstop7h 15m

£554

Flights are sorted by cheapest return flights first.

Deals found on 6/5

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to Niagara Falls

What is the cheapest time of day to fly from LHR to NI4?

Find hourly flight availability from Heathrow to Niagara Falls. 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.

When flying from London Heathrow Airport to Niagara Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Niagara Falls

Explore weekly flight availability from Heathrow to Niagara Falls. 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 LHR to NI4 are scheduled on a Monday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

How much does it cost for a return flight from London Heathrow Airport to Niagara Falls?

Reviews of airlines servicing Niagara Falls

Get insights into the airlines that provide service to Niagara Falls. 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 Niagara Falls. Reviews last updated 7 May 2026.
Get a feel of what it's like to fly with KLM,Virgin Atlantic, andAir Canada from London Heathrow Airport to Niagara Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,511 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,511 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.4
Good
688 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Air Canada
7.1
Good
11,003 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Lufthansa
6.8
Okay
7,975 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
7,946 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Niagara Falls. 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 London Heathrow Airport to Niagara Falls?

    Icelandair, United Airlines, and Delta can get you from London Heathrow Airport to Niagara Falls in just under 7h 50m. Your travel time can differ by up to 18h 55m. London Heathrow Airport and Niagara Falls are separated by a distance of 3543 mi. 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 London Heathrow Airport to Niagara Falls one-way?

    £222 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Transat and Virgin Atlantic, with prices starting from £244 and £268, respectively.

  • What are the most reliable airlines from London Heathrow Airport to Niagara Falls?

    Before booking your flight to Niagara Falls from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: United Airlines (80%), Lufthansa (80%), SriLankan Airlines( 77%).

  • What are the cheapest flights from London Heathrow Airport to Niagara Falls?

    Looking for the cheapest flight from London Heathrow Airport to Niagara Falls? While on average our users pay £974, our data indicates the cheapest price to be £323. The most popular route (London Heathrow - Toronto Pearson Intl), is priced around £334.

  • Can I find deals for flights from Heathrow to Niagara Falls that include hotel bookings?

    Yes. In addition to deals on Heathrow to Niagara Falls flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Niagara Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Niagara Falls.

  • Can I find deals for business class flights from Heathrow to Niagara Falls?

    Yes. Cheapflights offers flight deals from Heathrow to Niagara Falls 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

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 Heathrow to Niagara Falls

Discover the top 10 airlines that operate flights from Heathrow to Niagara Falls. 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 858,174 searches. Data last updated 7 May 2026.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£268Average£342FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£307Average£541FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£307Average£402FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air CanadaCheapest£315Average£507FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapest£318Average£488FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapest£319Average£511FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£320Average£592FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air FranceCheapest£324Average£471FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£330Average£478FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£331Average£490FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Niagara Falls?

When you search for this flight from Heathrow to Niagara Falls, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Niagara Falls?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Niagara Falls from Heathrow.

Can Cheapflights find flights from Heathrow to Niagara Falls with no change fees?

Certainly. Search results for flights to Niagara Falls from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Niagara Falls become cheaper?

Of course! You can now track prices for flights from Heathrow to Niagara Falls and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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