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$279+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to London Heathrow are usually found in September or February, booked 11 days in advance, depart on a Sunday or Monday and return on a Monday

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 November 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$588
(Delta)

One-way from

$279
(Netflights)

Popular in

June

Cheapest in

September

Average price

$839
Provider with most accurate pricing for Buffalo-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Buffalo-London Heathrow flights.
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From Buffalo to London Heathrow
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One-way flight from Buffalo to London Heathrow
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Highest demand for flights based on searches. 13% potential increase in price ($116 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 26, 2025.

This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:12 amBUF - LHR
1 stop21h 33mDelta
Tue 12/238:00 pmLHR - BUF
1 stop24h 09mDelta
Deal found 11/26$588
This Delta deal was found by Cheapflights users on 11/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:55 pmBUF - LHR
1 stop13h 20mDelta
Tue 12/1611:45 amLHR - BUF
2 stops17h 31mDelta
Deal found 11/25$590
This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:57 pmBUF - LHR
1 stop13h 23mAmerican Airlines
Wed 12/1011:45 amLHR - BUF
1 stop16h 39mAmerican Airlines
Deal found 11/25$596
This Virgin Atlantic deal was found by Cheapflights users on 11/26. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:21 amBUF - LHR
2 stops14h 29mVirgin Atlantic
Tue 12/169:40 amLHR - BUF
2 stops18h 18mVirgin Atlantic
Deal found 11/26$600
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:00 pmBUF - LHR
1 stop10h 40mMultiple Airlines
Tue 12/168:00 amLHR - BUF
1 stop14h 51mMultiple Airlines
Deal found 11/26$628
This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:39 amBUF - LHR
1 stop15h 11mAmerican Airlines
Tue 12/163:45 pmLHR - BUF
1 stop12h 54mAmerican Airlines
Deal found 11/25$659
This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:26 amBUF - LHR
1 stop15h 24mAmerican Airlines
Wed 1/1410:05 amLHR - BUF
1 stop16h 01mAmerican Airlines
Deal found 11/26$660
This Priceline deal was found by Cheapflights users on 11/23. 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.
Thu 12/46:19 pmBUF - LHR
1 stop31h 36mJetBlue
Wed 12/109:20 amLHR - BUF
1 stop13h 04mJetBlue
Deal found 11/23$665
This United Airlines deal was found by Cheapflights users on 11/26. 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.
Tue 12/307:48 pmBUF - LHR
1 stop10h 02mUnited Airlines
Wed 1/141:25 pmLHR - BUF
2 stops29h 49mUnited Airlines
Deal found 11/26$671
This Expedia deal was found by Cheapflights users on 11/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:00 pmBUF - LHR
1 stop11h 30mJetBlue
Thu 12/119:20 amLHR - BUF
1 stop13h 04mJetBlue
Deal found 11/23$695
This Ovago deal was found by Cheapflights users on 11/26. 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.
Tue 12/212:18 pmBUF - LHR
1 stop28h 22mJetBlue
Tue 12/99:20 amLHR - BUF
1 stop30h 35mJetBlue
Deal found 11/26$696

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 November 26, 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 12/7

6:12 am-8:45 am

1 stop21h 33m

London Heathrow

Tue 12/23

8:00 pm-3:09 pm

1 stop24h 09m

$588

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 12/9

3:55 pm-10:15 am

1 stop13h 20m

London Heathrow

Tue 12/16

11:45 am-12:16 am

2 stops17h 31m

$590

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 12/9

6:25 pm-11:40 am

1 stop12h 15m

London Heathrow

Tue 12/16

8:55 am-5:18 pm

1 stop13h 23m

$596

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 3/13

11:37 am-9:20 am

2 stops17h 43m

London Heathrow

Fri 3/20

6:40 am-12:14 am

2 stops21h 34m

$597

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 1/28

11:51 am-6:30 pm

2 stops25h 39m

London Heathrow

Wed 2/11

6:40 am-12:16 am

2 stops22h 36m

$597

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 3/23

5:50 pm-10:15 am

2 stops12h 25m

London Heathrow

Tue 3/31

11:30 am-10:55 pm

2 stops16h 25m

$601

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 3/23

5:50 pm-8:45 am

1 stop10h 55m

London Heathrow

Tue 3/31

3:15 pm-11:57 pm

1 stop13h 42m

$603

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 2/4

3:38 pm-9:20 am

1 stop12h 42m

London Heathrow

Sun 2/8

11:45 am-10:57 pm

2 stops16h 12m

$625

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 1/15

7:00 am-9:20 am

3 stops21h 20m

London Heathrow

Wed 1/28

6:40 am-12:16 am

3 stops22h 36m

$626

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 1/8

3:38 pm-6:55 am

1 stop10h 17m

London Heathrow

Thu 1/15

8:55 am-5:39 pm

1 stop13h 44m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

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 November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 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 November 21, 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 $414). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $756). 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 November 26, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 8% on flights from Buffalo to London Heathrow Airport by exploring options for tickets at noon.

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 November 26, 2025.
See what other customers who have flown with Delta, Virgin Atlantic, 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
7,998 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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
7,998 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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.
Virgin Atlantic
7.5
Good
675 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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
11,038 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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
2,905 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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
7,539 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

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 12h 15m. 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 $414. Other airlines that can offer you cheap pricing are United Airlines, from $451, and American Airlines, from $522. Users have found that JetBlue is 45% 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, December is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $414). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $756). 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
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$414Average$734FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$451Average$793FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$762FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$778FlexibilityNo cancel feeOn-time70%
DeltaCheapest$596Average$782FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$636Average$729FlexibilityNo cancel feeOn-time72%

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