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Cheap flights from Buffalo to London Heathrow Airport from £225

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Buffalo to London Heathrow are usually found in September or February, booked 12 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Cheap 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 31 October 2025.

Round-trip from

£449

One-way from

£225

Popular in

June

Cheapest in

September

Average price

£530
Delta
  • Delta
  • 9/11-25/11
  • 3 total stops
  • 29h 19m total
  • Buffalo to London
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12/1
  • 12/1
  • 3 total stops
  • 51h 22m total
  • Buffalo to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£68 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find 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 31 October 2025.

Sun 9/1115:45BUF - LHR
1 stop11h 20mDelta
Tue 25/1106:20LHR - BUF
2 stops17h 59mDelta
Deal found 30/10£449
Tue 11/1111:19BUF - LHR
1 stop14h 01mDelta
Wed 19/1111:30LHR - BUF
2 stops17h 29mDelta
Deal found 29/10£449
Wed 12/1109:14BUF - LHR
2 stops17h 51mDelta
Wed 19/1106:20LHR - BUF
2 stops15h 47mDelta
Deal found 30/10£452
Tue 11/1111:19BUF - LHR
2 stops14h 31mVirgin Atlantic
Wed 19/1111:45LHR - BUF
2 stops17h 14mVirgin Atlantic
Deal found 29/10£454
Sun 9/1117:47BUF - LHR
1 stop9h 58mKLM
Tue 25/1116:35LHR - BUF
1 stop12h 24mKLM
Deal found 30/10£455
Fri 5/1211:21BUF - LHR
1 stop15h 44mDelta
Thu 11/1206:20LHR - BUF
2 stops17h 59mDelta
Deal found 29/10£468
Tue 11/1119:22BUF - LHR
1 stop10h 03mUnited Airlines
Tue 18/1106:35LHR - BUF
2 stops17h 11mUnited Airlines
Deal found 30/10£469
Sat 29/1121:59BUF - LHR
1 stop26h 56mUnited Airlines
Fri 12/1209:00LHR - BUF
2 stops17h 15mUnited Airlines
Deal found 29/10£471
Sat 29/1112:05BUF - LHR
1 stop14h 45mDelta
Sat 6/1208:40LHR - BUF
2 stops19h 18mDelta
Deal found 30/10£471
Sun 9/1119:30BUF - LHR
2 stops18h 05mLufthansa
Tue 25/1109:30LHR - BUF
2 stops18h 28mLufthansa
Deal found 30/10£473
Sun 7/1217:50BUF - LHR
1 stop9h 55mKLM
Sun 14/1213:00LHR - BUF
1 stop14h 58mKLM
Deal found 30/10£474
Tue 11/1110:50BUF - LHR
2 stops15h 20mAir Canada
Wed 19/1113:25LHR - BUF
2 stops36h 35mAir Canada
Deal found 30/10£475

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 31 October 2025.
Use the filters below to find and compare flights from Buffalo to London Heathrow Airport that are best for you.

Fly from

Buffalo

Fly to

Heathrow

Route

Depart

Return

Price

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 9/11

15:45-08:05

1 stop11h 20m

London Heathrow

Tue 25/11

06:20-19:19

2 stops17h 59m

£449

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 11/11

11:19-06:20

1 stop14h 01m

London Heathrow

Wed 19/11

11:30-23:59

2 stops17h 29m

£449

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 11/11

17:47-08:45

1 stop9h 58m

London Heathrow

Wed 19/11

10:10-19:19

1 stop14h 09m

£455

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 9/11

17:47-08:45

1 stop9h 58m

London Heathrow

Tue 25/11

16:35-23:59

1 stop12h 24m

£455

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 9/11

12:05-06:25

1 stop13h 20m

London Heathrow

Wed 19/11

16:35-23:59

1 stop12h 24m

£455

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 11/11

12:05-06:25

1 stop13h 20m

London Heathrow

Thu 20/11

14:30-23:01

1 stop13h 31m

£455

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 9/12

19:59-20:10

1 stop19h 11m

London Heathrow

Tue 16/12

16:35-00:16

1 stop12h 41m

£455

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 9/11

14:50-08:05

1 stop12h 15m

London Heathrow

Thu 20/11

12:40-23:01

1 stop15h 21m

£455

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 12/11

10:22-06:20

1 stop14h 58m

London Heathrow

Thu 20/11

16:35-23:59

1 stop12h 24m

£455

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 14/1

14:10-09:00

1 stop13h 50m

London Heathrow

Tue 20/1

11:30-22:59

2 stops16h 29m

£455

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 20 results
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

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

Use this chart to determine the optimal time to book a return flight from Buffalo to Heathrow. Price data was last updated on 24 October 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to London Heathrow Airport, you should look to book at least 11 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, December is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of £314). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of £574). 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 BUF to LHR?

Find hourly flight availability from Buffalo 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 31 October 2025.

A simple way to save on the total cost of your ticket is to fly from Buffalo to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 55% on your trip compared to booking a flight at midday.

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 Delta and KLM fly from Buffalo to London Heathrow Airport in about 9h 58m. The time it takes to get you to your destination can typically vary by up to 1h 22m. 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, December is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of £314). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of £574). 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
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Chichester
Swindon
Crawley
Romford
Brentford
Ipswich

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Fly with Cheapflights

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How does Cheapflights help users find flights from Buffalo to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Buffalo 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 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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