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Heathrow

$294+ 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
Mar 31 — Apr 71
Tue 3/31
Tue 4/7
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 March 1, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 2/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:00 am
BUF
-
LHR
1 stop10h 45m
JetBlue
Wed 3/117:25 am
LHR
-
BUF
1 stop15h 10m
JetBlue
Deal found 2/28$655
This United Airlines deal was found by Cheapflights users on 2/28. 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.
Fri 11/135:50 pm
BUF
-
LHR
1 stop31h 05m
United Airlines
Sun 11/1512:05 pm
LHR
-
BUF
2 stops50h 44m
United Airlines
Deal found 2/28$657
This KAYAK deal was found by Cheapflights users on 2/28. 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.
Sat 3/211:30 pm
BUF
-
LHR
1 stop13h 25m
JetBlue
Sat 3/288:05 am
LHR
-
BUF
1 stop16h 48m
JetBlue
Deal found 2/28$658
This Expedia deal was found by Cheapflights users on 2/26. 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 3/16:00 am
BUF
-
LHR
1 stop9h 45m
JetBlue
Mon 3/98:05 am
LHR
-
BUF
1 stop14h 30m
JetBlue
Deal found 2/26$659
This FlightHub deal was found by Cheapflights users on 2/27. 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 3/236:00 am
BUF
-
LHR
1 stop10h 45m
JetBlue
Tue 3/318:15 am
LHR
-
BUF
1 stop28h 51m
JetBlue
Deal found 2/27$660
This FlightHub deal was found by Cheapflights users on 2/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
BUF
-
LHR
2 stops18h 30m
Multiple Airlines
Wed 8/266:00 am
LHR
-
BUF
2 stops15h 47m
Multiple Airlines
Deal found 2/26$664
This Cheapflightsfares deal was found by Cheapflights users on 2/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/221:32 pm
BUF
-
LHR
1 stop13h 23m
JetBlue
Sat 3/288:05 am
LHR
-
BUF
1 stop16h 48m
JetBlue
Deal found 2/28$670
This United Airlines deal was found by Cheapflights users on 3/1. 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 9/96:00 am
BUF
-
LHR
2 stops19h 30m
United Airlines
Wed 9/166:50 am
LHR
-
BUF
2 stops22h 02m
United Airlines
Deal found 3/1$673
This Priceline deal was found by Cheapflights users on 2/27. 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.
Mon 4/138:59 pm
BUF
-
LHR
1 stop18h 46m
JetBlue
Mon 4/208:15 am
LHR
-
BUF
1 stop29h 43m
JetBlue
Deal found 2/27$676
This United Airlines deal was found by Cheapflights users on 2/26. 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 8/1810:20 am
BUF
-
LHR
1 stop15h 35m
United Airlines
Wed 8/269:30 am
LHR
-
BUF
2 stops29h 17m
United Airlines
Deal found 2/26$677
This Priceline deal was found by Cheapflights users on 2/27. 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.
Sat 2/281:39 pm
BUF
-
LHR
1 stop12h 16m
JetBlue
Fri 3/68:05 am
LHR
-
BUF
1 stop30h 30m
JetBlue
Deal found 2/27$680
This Scandinavian Airlines deal was found by Cheapflights users on 2/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
BUF
-
LHR
2 stops21h 35m
Scandinavian Airlines
Tue 4/217:05 am
LHR
-
BUF
2 stops22h 45m
Scandinavian Airlines
Deal found 2/28$683

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 March 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$658
(KAYAK)

One-way from

$294
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$859
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. 12% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 1, 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

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

6:00 am-6:30 am

2 stops19h 30m

London Heathrow

Thu 8/20

8:00 am-4:43 pm

1 stop13h 43m

$702

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

6:00 am-8:40 pm

1 stop9h 40m

London Heathrow

Wed 8/12

2:05 pm-9:49 am

2 stops24h 44m

$738

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 3/20

9:54 am-6:55 am

1 stop17h 01m

London Heathrow

Tue 3/24

7:25 am-8:53 pm

1 stop17h 28m

$758

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 4/23

2:54 pm-6:55 am

1 stop11h 01m

London Heathrow

Fri 5/8

6:50 am-6:10 pm

2 stops16h 20m

$770

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 5/7

3:53 pm-10:20 am

1 stop13h 27m

London Heathrow

Fri 5/15

11:45 am-12:19 am

2 stops17h 34m

$781

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 8/6

7:00 am-6:45 am

1 stop18h 45m

London Heathrow

Thu 8/13

8:00 am-4:47 pm

1 stop13h 47m

$785

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 3/31

2:54 pm-6:55 am

1 stop11h 01m

London Heathrow

Sun 4/5

8:30 am-8:43 pm

2 stops17h 13m

$817

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 7/29

6:00 am-8:40 pm

1 stop9h 40m

London Heathrow

Tue 8/11

4:00 pm-11:18 pm

1 stop12h 18m

$902

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

12:50 pm-8:50 am

2 stops15h 00m

London Heathrow

Fri 8/14

11:45 am-7:00 pm

1 stop12h 15m

$936

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 5/27

10:34 am-10:15 am

2 stops18h 41m

London Heathrow

Thu 6/11

6:50 am-11:59 pm

2 stops22h 09m

$943

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/27

Showing 1-10 of 17 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 February 27, 2026.

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 $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.

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 March 1, 2026.
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
8,244 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

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
8,244 reviews
Delta
7.9
Good
8,244 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

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
9,366 reviews
Delta
7.9
Good
8,244 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

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
11,372 reviews
Delta
7.9
Good
8,244 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

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
2,896 reviews
Delta
7.9
Good
8,244 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

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
7,772 reviews
Delta
7.9
Good
8,244 reviews

Crew

8.5

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

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 13h 23m. 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 $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
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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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 March 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$451Average$803FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$777FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$767FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$597Average$699FlexibilityNo cancel feeOn-time62%
DeltaCheapest$599Average$852FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$636Average$748FlexibilityNo cancel feeOn-time72%

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