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Cheap flights from Buffalo to London Heathrow Airport from £241

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
1 Jul — 8 Jul1
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 1 June 2026.

Tue 25/806:35
BUF
-
LHR
1 stop9h 10m
JetBlue
Wed 2/908:40
LHR
-
BUF
1 stop15h 44m
JetBlue
Deal found 1/6£590
Tue 20/1006:00
BUF
-
LHR
1 stop9h 45m
JetBlue
Tue 10/1107:25
LHR
-
BUF
1 stop12h 03m
JetBlue
Deal found 29/5£598
Tue 20/1011:46
BUF
-
LHR
2 stops17h 49m
Multiple Airlines
Tue 10/1107:25
LHR
-
BUF
1 stop16h 36m
Multiple Airlines
Deal found 29/5£607
Mon 10/806:35
BUF
-
LHR
1 stop9h 10m
JetBlue
Sat 29/808:15
LHR
-
BUF
1 stop15h 48m
JetBlue
Deal found 31/5£615
Sun 1/1114:58
BUF
-
LHR
1 stop15h 37m
Multiple Airlines
Mon 9/1107:25
LHR
-
BUF
1 stop12h 03m
Multiple Airlines
Deal found 29/5£616
Tue 15/912:09
BUF
-
LHR
2 stops23h 11m
Multiple Airlines
Tue 22/908:15
LHR
-
BUF
1 stop11h 11m
Multiple Airlines
Deal found 30/5£621
Wed 30/910:50
BUF
-
LHR
2 stops16h 05m
SWISS
Tue 6/1020:05
LHR
-
BUF
2 stops29h 26m
SWISS
Deal found 30/5£632
Wed 26/810:30
BUF
-
LHR
2 stops24h 55m
SWISS
Fri 11/906:00
LHR
-
BUF
2 stops20h 07m
SWISS
Deal found 28/5£632
Wed 26/810:30
BUF
-
LHR
2 stops18h 05m
Air Canada
Fri 11/907:25
LHR
-
BUF
2 stops21h 19m
Air Canada
Deal found 28/5£635
Sat 22/815:52
BUF
-
LHR
1 stop12h 38m
JetBlue
Sat 29/808:40
LHR
-
BUF
1 stop15h 44m
JetBlue
Deal found 30/5£641
Wed 30/918:56
BUF
-
LHR
1 stop10h 54m
Iberia
Tue 6/1006:15
LHR
-
BUF
2 stops21h 55m
Iberia
Deal found 30/5£641
Fri 25/918:56
BUF
-
LHR
1 stop10h 54m
Iberia
Wed 30/906:15
LHR
-
BUF
2 stops20h 55m
Iberia
Deal found 28/5£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 1 June 2026.

Round-trip from

£590

One-way from

£241

Popular in

June

Cheapest in

September

Average price

£707
JetBlue
  • JetBlue
  • 25/8-2/9
  • 2 total stops
  • 24h 54m total
  • Buffalo to London
Search Deals
JetBlue
  • JetBlue
  • 23/8
  • 1 total stop
  • 19h 30m total
  • Buffalo to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£64 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 1 June 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 - LHR

BUFLHR

Buffalo

Wed 30/9

10:50-13:00

2 stops21h 10m

London Heathrow

Tue 6/10

06:00-20:31

2 stops19h 31m

£632

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 7/10

16:30-13:15

1 stop15h 45m

London Heathrow

Mon 12/10

06:30-18:37

2 stops17h 07m

£644

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 25/9

09:00-06:25

2 stops16h 25m

London Heathrow

Wed 30/9

08:40-19:19

2 stops15h 39m

£649

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 14/9

11:57-07:10

1 stop14h 13m

London Heathrow

Mon 28/9

09:20-17:54

1 stop13h 34m

£666

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 5/8

18:09-11:15

1 stop12h 06m

London Heathrow

Thu 20/8

09:45-17:04

1 stop12h 19m

£667
Fastest return journey

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 30/9

18:59-11:20

1 stop11h 21m

London Heathrow

Tue 6/10

08:20-14:34

1 stop11h 14m

£667

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 24/7

15:54-13:05

2 stops16h 11m

London Heathrow

Thu 6/8

06:30-18:23

2 stops16h 53m

£719

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 31/7

15:00-06:55

1 stop10h 55m

London Heathrow

Wed 12/8

09:30-16:56

2 stops36h 26m

£719

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 31/7

19:50-13:50

2 stops13h 00m

London Heathrow

Wed 12/8

06:30-19:19

2 stops17h 49m

£728

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 6/8

10:30-06:50

1 stop15h 20m

London Heathrow

Fri 14/8

12:30-19:07

1 stop11h 37m

£729

Flights are sorted by cheapest return flights first.

Deals found on 30/5

Showing 1-10 of 19 resultsSorted by cheapest first
1
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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

How far ahead should I book a flight from Buffalo to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Buffalo to London Heathrow Airport, you should look to book at least 26 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of £469). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of £707). 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?

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, Delta, and Virgin Atlantic fly from Buffalo to London Heathrow Airport in about 14h 13m. The time it takes to get you to your destination can typically vary by up to 6h 57m. 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, September is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of £469). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of £707). 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
Northampton
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Ipswich
Watford
Swindon
Romford
Guildford
Borehamwood

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

Cheapflights helps you find that perfect flight to Heathrow from Buffalo by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Buffalo to Heathrow with no change fees.

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Of course! You can now track prices for flights from Buffalo to Heathrow 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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