Heathrow

$333+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Jun 14 — Jun 211
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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 May 15, 2026.

This United Airlines deal was found by Cheapflights users on 5/13. 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.
Sun 10/117:55 pm
BUF
-
LHR
1 stop30h 00m
United Airlines
Wed 10/146:50 am
LHR
-
BUF
2 stops21h 36m
United Airlines
Deal found 5/13$765
This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:50 am
BUF
-
LHR
2 stops21h 10m
SWISS
Tue 10/68:05 pm
LHR
-
BUF
2 stops25h 42m
SWISS
Deal found 5/15$851
This Cheapflightsfares deal was found by Cheapflights users on 5/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am
BUF
-
LHR
2 stops24h 55m
SWISS
Wed 9/96:00 am
LHR
-
BUF
2 stops20h 08m
SWISS
Deal found 5/14$852
This Cheapflightsfares deal was found by Cheapflights users on 5/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am
BUF
-
LHR
2 stops24h 55m
SWISS
Fri 9/116:00 am
LHR
-
BUF
2 stops20h 08m
SWISS
Deal found 5/13$853
This Expedia deal was found by Cheapflights users on 5/13. 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 8/267:52 pm
BUF
-
LHR
1 stop12h 13m
KLM
Fri 9/1111:45 am
LHR
-
BUF
2 stops17h 11m
KLM
Deal found 5/13$857
This Expedia deal was found by Cheapflights users on 5/15. 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 8/261:03 pm
BUF
-
LHR
1 stop12h 47m
Multiple Airlines
Fri 9/1111:55 am
LHR
-
BUF
1 stop12h 06m
Multiple Airlines
Deal found 5/15$859
This Orbitz deal was found by Cheapflights users on 5/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:46 am
BUF
-
LHR
1 stop14h 54m
Iberia
Wed 10/216:15 am
LHR
-
BUF
2 stops21h 55m
Iberia
Deal found 5/12$866
This Delta deal was found by Cheapflights users on 5/14. 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.
Wed 8/266:00 am
BUF
-
LHR
1 stop19h 25m
Delta
Wed 9/96:30 am
LHR
-
BUF
2 stops17h 03m
Delta
Deal found 5/14$869
This Delta deal was found by Cheapflights users on 5/13. 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.
Wed 8/267:19 pm
BUF
-
LHR
1 stop12h 56m
Delta
Fri 9/119:55 am
LHR
-
BUF
2 stops18h 08m
Delta
Deal found 5/13$870

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 May 15, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$870
(Delta)

One-way from

$333
(oojo)

Popular in

June

Cheapest in

September

Average price

$906
Provider with most accurate pricing for Buffalo-London Heathrow flight deals.
Provider most trusted by Cheapflights users for Buffalo-London Heathrow flights.
From Buffalo to London Heathrow
One-way flight from Buffalo to London Heathrow
Highest demand for flights based on searches. 12% potential increase in price ($116 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Average for round-trip flights in May 2026

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 May 15, 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 round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 9/30

10:50 am-7:55 am

2 stops16h 05m

London Heathrow

Tue 10/6

8:45 am-8:31 pm

2 stops16h 46m

$852

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 9/30

7:35 pm-1:05 pm

1 stop12h 30m

London Heathrow

Tue 10/6

6:30 am-6:54 pm

2 stops17h 24m

$870

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

3:54 pm-1:05 pm

2 stops16h 11m

London Heathrow

Fri 9/11

9:55 am-11:03 pm

2 stops18h 08m

$874

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

3:54 pm-1:15 pm

2 stops16h 21m

London Heathrow

Thu 8/20

6:30 am-7:19 pm

2 stops17h 49m

$875
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

12:16 pm-6:25 am

1 stop13h 09m

London Heathrow

Fri 9/11

12:50 pm-7:00 pm

1 stop11h 10m

$888

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 10/24

3:50 pm-7:15 am

1 stop10h 25m

London Heathrow

Tue 11/3

2:30 pm-11:50 pm

1 stop14h 20m

$898

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 10/22

3:50 pm-8:50 am

1 stop12h 00m

London Heathrow

Sun 11/1

10:10 am-6:18 pm

1 stop13h 08m

$898

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 7/31

3:57 pm-7:15 am

1 stop10h 18m

London Heathrow

Wed 8/12

8:40 am-7:19 pm

2 stops15h 39m

$970

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 7/31

6:15 am-6:30 am

2 stops19h 15m

London Heathrow

Wed 8/12

7:30 am-11:44 pm

2 stops21h 14m

$976

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

12:01 pm-7:15 am

2 stops14h 14m

London Heathrow

Fri 8/14

6:30 am-7:08 pm

2 stops17h 38m

$1,008

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 22 resultsSorted by cheapest first
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3

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 May.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Buffalo-London Heathrow Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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?

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 $631). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $951). 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 to fly round-trip from Buffalo to London Heathrow Airport?

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 May 15, 2026.
See what other customers who have flown with Delta,United Airlines, andJetBlue 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.

Comfort

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work

Comfort

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work

Comfort

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work

Comfort

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work

Comfort

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work

Comfort

7.8

Food

7.2

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work

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. 7 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 30m. 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 $380. Other airlines that can offer you cheap pricing are United Airlines, from $451, and American Airlines, from $522. Users have found that KLM is 51% 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, September is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $631). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $951). 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
Winchester
Croydon
Gatwick
Southend-on-Sea
Dorking
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

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Top 7 airlines flying from Buffalo to Heathrow

Discover the top 7 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 May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$380Average$729FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$451Average$852FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$736FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$730FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$540Average$812FlexibilityNo cancel feeOn-time72%
JetBlueCheapest$618Average$725FlexibilityNo cancel feeOn-time62%
DeltaCheapest$710Average$890FlexibilityNo cancel feeOn-timeN/A

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