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Cheap flights from Buffalo to London Heathrow Airport from £239

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
8 Sep — 15 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to Heathrow
Explore the most affordable flight options available from Buffalo to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 August 2026.

Wed 30/910:46 -
2 stops16h 09m
Tue 6/1020:05 -
2 stops29h 42m
Deal found 7/8£601
Tue 6/1017:50 -
1 stop12h 00m
Thu 15/1009:15 -
2 stops17h 20m
Deal found 5/8£619
Tue 17/1116:16 -
1 stop9h 44m
Tue 24/1107:30 -
2 stops19h 16m
Deal found 8/8£619
Wed 23/919:59 -
1 stop9h 41m
Wed 30/906:00 -
2 stops19h 47m
Deal found 8/8£625
Tue 13/1010:46 -
2 stops17h 49m
Fri 23/1006:00 -
2 stops19h 47m
Deal found 7/8£628
Tue 1/1212:32 -
1 stop15h 28m
Sat 12/1211:30 -
2 stops16h 14m
Deal found 8/8£630
Wed 23/909:15 -
1 stop16h 15m
Wed 30/911:55 -
1 stop11h 38m
Deal found 8/8£637
Wed 30/912:09 -
1 stop17h 41m
Tue 6/1009:15 -
2 stops17h 20m
Deal found 5/8£638
Tue 3/1111:24 -
1 stop16h 11m
Tue 17/1106:05 -
2 stops20h 35m
Deal found 4/8£639
Thu 27/810:30 -
2 stops16h 25m
Tue 1/906:00 -
2 stops15h 56m
Deal found 8/8£641
Wed 4/1115:53 -
1 stop10h 22m
Tue 10/1106:30 -
2 stops16h 30m
Deal found 7/8£642

Find flight deals from Buffalo to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 August 2026.

Round-trip from

£601

One-way from

£239

Popular in

June

Cheapest in

February

Average price

£793
SWISS
  • SWISS
  • 30/9-6/10
  • 4 total stops
  • 45h 51m total
  • Buffalo to London
Search Deals
British Airways
  • British Airways
  • 15/9
  • 1 total stop
  • 15h 56m total
  • Buffalo to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£146 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Buffalo 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 858,174 searches. Data last updated 9 August 2026.
Use the filters below to find and compare flights from Buffalo to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Wed 4/11

15:54-07:45

1 stop10h 51m

London Heathrow

Tue 10/11

06:30-19:19

2 stops17h 49m

£642

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Wed 4/11

15:54-11:40

2 stops14h 46m

London Heathrow

Wed 18/11

08:40-19:19

2 stops15h 39m

£645
Fastest return journey

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Mon 2/11

17:58-12:00

1 stop13h 02m

London Heathrow

Tue 17/11

15:10-22:59

1 stop12h 49m

£663

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Thu 5/11

12:10-09:30

1 stop16h 20m

London Heathrow

Sun 15/11

12:20-23:49

1 stop16h 29m

£664

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Sun 27/9

12:02-07:10

1 stop14h 08m

London Heathrow

Sun 11/10

06:30-19:02

2 stops17h 32m

£664

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Tue 1/12

09:00-07:05

2 stops17h 05m

London Heathrow

Sat 12/12

06:30-19:19

2 stops17h 49m

£667

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Wed 6/1

19:15-10:30

1 stop10h 15m

London Heathrow

Sat 16/1

11:15-23:50

2 stops17h 35m

£671

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Fri 27/11

06:00-06:25

1 stop19h 25m

London Heathrow

Mon 7/12

08:40-19:19

2 stops15h 39m

£686
Cheapest one-way

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Sun 27/9

07:59-09:05

1 stop20h 06m

£239

BuffaloLondon

BUF Buffalo - LHR London Heathrow

BUFLHR

Buffalo

Tue 24/11

12:32-07:50

1 stop14h 18m

£241

Flights are sorted by cheapest return flights first.

Deals found on 4/8

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Buffalo to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Buffalo 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 Buffalo to London Heathrow Airport

What is the cheapest month to book a flight from Buffalo to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of £488). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of £984). 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.

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

Airfare is typical for this route at the moment.

Buffalo to London Heathrow Airport flights typically cost between £548 and £870 in September.
The cheapest return price found within the last 5 days was £601 on SWISS (30 Sept–6 Oct).

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Buffalo to London Heathrow?

    If you book a flight to London Heathrow from Buffalo, you will be flying from Buffalo, which is the city’s only airport. Buffalo (BUF) is located 8.3 mi from the center of Buffalo. There are 0 flights from Buffalo to London Heathrow per day from 0 different airlines.

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

    Airlines like SWISS and Iberia fly from Buffalo to London Heathrow Airport in about 12h. The time it takes to get you to your destination can typically vary by up to 4h 09m. Airlines will cover a distance of 3540 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

  • How can I find direct flights from Buffalo to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Buffalo 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 Buffalo to London Heathrow Airport?

    Currently, February is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of £488). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of £984). 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
Hounslow
Milton Keynes
Gatwick
Luton
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Northampton
Watford
Swindon
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Poole

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

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