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Heathrow

$299+ Cheap flights from Buffalo (BUF) to Heathrow (LHR)

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from Buffalo to Heathrow

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 December 31, 2025.

This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:50 pmBUF - LHR
2 stops20h 30mUnited Airlines
Thu 1/89:10 amLHR - BUF
1 stop13h 30mUnited Airlines
Deal found 12/29$834
This Ovago deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:48 pmBUF - LHR
1 stop10h 02mLufthansa
Thu 1/88:00 amLHR - BUF
1 stop14h 40mLufthansa
Deal found 12/29$916
This United Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:50 pmBUF - LHR
2 stops14h 15mUnited Airlines
Sat 1/171:25 pmLHR - BUF
2 stops36h 04mUnited Airlines
Deal found 12/29$923
This Trip.com deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:50 pmBUF - LHR
1 stop10h 50mLufthansa
Wed 1/74:20 pmLHR - BUF
1 stop32h 05mLufthansa
Deal found 12/30$960
This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:48 pmBUF - LHR
2 stops15h 02mUnited Airlines
Wed 1/74:20 pmLHR - BUF
1 stop26h 54mUnited Airlines
Deal found 12/30$1,160
This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:29 amBUF - LHR
2 stops19h 46mUnited Airlines
Tue 1/67:25 amLHR - BUF
1 stop18h 04mUnited Airlines
Deal found 12/30$1,254
This FlightHub deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:50 pmBUF - LHR
1 stop15h 00mMultiple Airlines
Sat 1/178:00 amLHR - BUF
1 stop14h 40mMultiple Airlines
Deal found 12/29$1,270
This Priceline deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:50 amBUF - LHR
1 stop17h 05mJetBlue
Tue 1/67:25 amLHR - BUF
1 stop21h 22mJetBlue
Deal found 12/30$1,502

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 December 31, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$596
(Kiwi.com)

One-way from

$299
(JetBlue)

Popular in

December

Cheapest in

February

Average price

$1,000
Provider with most accurate pricing for Buffalo-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-London Heathrow flights.
Search Deals
From Buffalo to London Heathrow
Search Deals
One-way flight from Buffalo to London Heathrow
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 31, 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

Thu 2/26

2:54 pm-9:45 am

2 stops13h 51m

London Heathrow

Thu 3/5

11:10 am-11:56 pm

2 stops17h 46m

$617

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 2/26

6:00 am-8:35 pm

1 stop9h 35m

London Heathrow

Tue 3/3

6:50 am-5:50 pm

2 stops16h 00m

$630

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 3/10

5:29 pm-11:15 am

1 stop13h 46m

London Heathrow

Wed 3/18

6:50 am-6:42 pm

2 stops15h 52m

$630

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 2/12

11:52 am-10:15 am

1 stop17h 23m

London Heathrow

Thu 2/19

11:45 am-12:14 am

2 stops17h 29m

$631

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 3/6

7:00 am-6:20 am

1 stop18h 20m

London Heathrow

Sun 3/15

6:30 am-12:14 am

2 stops21h 44m

$631

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 3/7

3:39 pm-6:55 am

1 stop10h 16m

London Heathrow

Sun 3/15

6:30 am-12:14 am

2 stops21h 44m

$631

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 2/10

10:45 am-7:10 am

2 stops15h 25m

London Heathrow

Tue 2/17

9:00 am-8:51 pm

2 stops16h 51m

$634

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 2/27

10:29 am-7:50 am

2 stops16h 21m

London Heathrow

Tue 3/3

11:45 am-10:57 pm

2 stops16h 12m

$636

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 1/20

10:25 am-6:55 am

1 stop15h 30m

London Heathrow

Sun 1/25

9:20 am-6:47 pm

1 stop14h 27m

$640

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 3/10

7:30 pm-9:30 am

1 stop10h 00m

London Heathrow

Mon 3/16

9:20 am-7:01 pm

1 stop13h 41m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 18 results
1
2

Compare providers for flights from Buffalo to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Heathrow in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-London Heathrow Airport flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Buffalo-London Heathrow Airport flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Buffalo-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-London Heathrow Airport flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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 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 round-trip flight from Buffalo to Heathrow. Price data was last updated on December 26, 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 27 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, August is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $470). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $757). 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.

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 December 31, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Buffalo to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,012 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,012 reviews
Delta
7.9
Good
8,012 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
9,122 reviews
Delta
7.9
Good
8,012 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
11,069 reviews
Delta
7.9
Good
8,012 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.2
Good
2,901 reviews
Delta
7.9
Good
8,012 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.7
Okay
7,630 reviews
Delta
7.9
Good
8,012 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    For a flight from Buffalo to London Heathrow, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 0 outbound flights to London Heathrow per day. 6 airlines have flights to London Heathrow from Buffalo on a regular basis.

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

    Departing from Buffalo to London Heathrow Airport will take you 9h 35m. The distance from Buffalo to London Heathrow Airport is about 3540 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Buffalo to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Buffalo to London Heathrow Airport round-trip from $451. Other airlines that can offer you cheap pricing are American Airlines, from $522, and British Airways, from $534. Users have found that United Airlines is 42% cheaper than the other options available to this destination.

  • 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 vacation 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, August is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $470). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $757). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Buffalo to Heathrow

Discover the top 6 airlines that operate flights from Buffalo 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 2,558,603 searches. Data last updated December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$451Average$803FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$751FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$772FlexibilityNo cancel feeOn-time70%
DeltaCheapest$596Average$780FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$597Average$763FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$626Average$748FlexibilityNo cancel feeOn-time72%

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