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Heathrow

$265+ 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Jul 29 — Aug 51
Wed 7/29
Wed 8/5
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 June 29, 2026.

This United Airlines deal was found by Cheapflights users on 6/28. 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 9/297:00 am
BUF
-
LHR
1 stop21h 00m
United Airlines
Thu 10/16:50 am
LHR
-
BUF
2 stops21h 21m
United Airlines
Deal found 6/28$738
This United Airlines deal was found by Cheapflights users on 6/28. 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 9/3010:40 am
BUF
-
LHR
2 stops15h 35m
United Airlines
Fri 10/26:50 am
LHR
-
BUF
2 stops21h 21m
United Airlines
Deal found 6/28$742
This KAYAK deal was found by Cheapflights users on 6/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:59 pm
BUF
-
LHR
2 stops16h 06m
Lufthansa
Fri 11/68:30 am
LHR
-
BUF
2 stops19h 51m
Lufthansa
Deal found 6/28$764
This Expedia deal was found by Cheapflights users on 6/28. 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 9/210:25 am
BUF
-
LHR
1 stop15h 05m
JetBlue
Sun 9/68:15 am
LHR
-
BUF
1 stop11h 42m
JetBlue
Deal found 6/28$787
This Expedia deal was found by Cheapflights users on 6/28. 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.
Sat 8/2210:27 am
BUF
-
LHR
1 stop15h 03m
JetBlue
Wed 9/98:15 am
LHR
-
BUF
1 stop11h 11m
JetBlue
Deal found 6/28$797
This lol.travel deal was found by Cheapflights users on 6/26. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:13 pm
BUF
-
LHR
2 stops18h 47m
Scandinavian Airlines
Tue 9/17:05 am
LHR
-
BUF
2 stops22h 35m
Scandinavian Airlines
Deal found 6/26$802
This Expedia deal was found by Cheapflights users on 6/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:00 am
BUF
-
LHR
1 stop19h 30m
JetBlue
Sat 8/228:15 am
LHR
-
BUF
1 stop15h 51m
JetBlue
Deal found 6/26$819
This Orbitz deal was found by Cheapflights users on 6/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:55 pm
BUF
-
LHR
1 stop12h 35m
JetBlue
Mon 8/248:40 am
LHR
-
BUF
1 stop14h 21m
JetBlue
Deal found 6/25$821
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:40 am
BUF
-
LHR
2 stops16h 15m
SWISS
Tue 10/68:05 pm
LHR
-
BUF
2 stops29h 42m
SWISS
Deal found 6/25$825
This Expedia deal was found by Cheapflights users on 6/28. 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 11/47:59 pm
BUF
-
LHR
2 stops31h 06m
Multiple Airlines
Mon 11/97:25 am
LHR
-
BUF
1 stop12h 03m
Multiple Airlines
Deal found 6/28$831

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 June 29, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$738
(United Airlines)

One-way from

$265
(Virgin Atlantic)

Popular in

June

Cheapest in

September

Average price

$1,328
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. 19% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 29, 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

Sun 11/15

10:30 am-6:40 am

1 stop15h 10m

London Heathrow

Wed 11/18

6:50 am-4:56 pm

2 stops15h 06m

$865

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 9/25

5:45 pm-6:30 am

2 stops55h 45m

London Heathrow

Fri 10/2

6:50 am-8:47 pm

2 stops18h 57m

$873
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 9/30

5:45 pm-11:55 am

1 stop13h 10m

London Heathrow

Tue 10/6

9:30 am-7:12 pm

1 stop14h 42m

$894

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 10/9

7:54 pm-8:40 pm

1 stop19h 46m

London Heathrow

Tue 10/13

6:50 am-4:43 pm

2 stops14h 53m

$894

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/7

10:20 am-6:55 am

1 stop15h 35m

London Heathrow

Mon 10/12

2:05 pm-8:47 pm

2 stops35h 42m

$903

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 8/17

1:51 pm-6:45 am

1 stop11h 54m

London Heathrow

Tue 8/25

6:50 am-7:00 pm

2 stops17h 10m

$922

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 11/19

2:54 pm-9:10 am

2 stops13h 16m

London Heathrow

Mon 11/23

6:50 am-4:56 pm

2 stops15h 06m

$926

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

7:59 pm-10:40 am

1 stop9h 41m

London Heathrow

Fri 9/11

9:30 am-4:56 pm

2 stops36h 26m

$931

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 8/9

3:55 pm-9:30 am

1 stop12h 35m

London Heathrow

Sun 8/16

8:40 am-7:32 pm

1 stop15h 52m

$941

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

10:00 am-6:45 am

1 stop15h 45m

London Heathrow

Thu 8/20

6:30 am-7:19 pm

2 stops17h 49m

$956

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
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 June.
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

*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 $632). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $1,328). 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 June 29, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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
7.8
Good
8,451 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

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
Delta
7.8
Good
8,451 reviews
Delta
7.8
Good
8,451 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

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
United Airlines
7.4
Good
9,897 reviews
Delta
7.8
Good
8,451 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

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
American Airlines
7.1
Good
11,766 reviews
Delta
7.8
Good
8,451 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

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
JetBlue
7.1
Good
3,013 reviews
Delta
7.8
Good
8,451 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

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
British Airways
6.7
Okay
8,085 reviews
Delta
7.8
Good
8,451 reviews

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

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 15h 10m. The distance from Buffalo to London Heathrow Airport is about 3540 mi.

  • 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 54% 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 $632). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $1,328). 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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 June 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$380Average$729FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$451Average$893FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$777FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$696FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$540Average$854FlexibilityNo cancel feeOn-time72%
JetBlueCheapest$640Average$725FlexibilityNo cancel feeOn-time62%
DeltaCheapest$732Average$932FlexibilityNo cancel feeOn-timeN/A

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