HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$110+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 29, 2026.

This Flighttix deal was found by Cheapflights users on 7/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:27 am
BUF
-
LHR
1 stop15h 03m
JetBlue
Tue 9/18:40 am
LHR
-
BUF
1 stop20h 28m
JetBlue
Deal found 7/28$771
This Flighttix deal was found by Cheapflights users on 7/26. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:02 pm
BUF
-
LHR
1 stop14h 08m
Multiple Airlines
Wed 9/168:40 am
LHR
-
BUF
1 stop15h 53m
Multiple Airlines
Deal found 7/26$781
This Flighttix deal was found by Cheapflights users on 7/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:53 pm
BUF
-
LHR
1 stop10h 17m
Multiple Airlines
Wed 9/1611:55 am
LHR
-
BUF
1 stop11h 38m
Multiple Airlines
Deal found 7/28$782
This Expedia deal was found by Cheapflights users on 7/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:53 pm
BUF
-
LHR
1 stop9h 52m
Multiple Airlines
Tue 9/18:15 am
LHR
-
BUF
1 stop11h 44m
Multiple Airlines
Deal found 7/25$783
This Expedia deal was found by Cheapflights users on 7/28. 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.
Sun 8/99:15 am
BUF
-
LHR
1 stop19h 15m
JetBlue
Tue 9/18:40 am
LHR
-
BUF
1 stop14h 27m
JetBlue
Deal found 7/28$791
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:27 am
BUF
-
LHR
1 stop15h 03m
JetBlue
Wed 9/28:15 am
LHR
-
BUF
1 stop11h 44m
JetBlue
Deal found 7/27$792
This FlightHub deal was found by Cheapflights users on 7/24. 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 9/146:00 am
BUF
-
LHR
1 stop9h 45m
JetBlue
Tue 10/68:15 am
LHR
-
BUF
1 stop11h 28m
JetBlue
Deal found 7/24$797
This Expedia deal was found by Cheapflights users on 7/28. 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.
Tue 10/66:50 pm
BUF
-
LHR
1 stop11h 25m
Multiple Airlines
Wed 11/47:25 am
LHR
-
BUF
1 stop12h 03m
Multiple Airlines
Deal found 7/28$801
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:59 pm
BUF
-
LHR
1 stop18h 46m
JetBlue
Wed 9/168:15 am
LHR
-
BUF
1 stop15h 18m
JetBlue
Deal found 7/27$802

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 July 29, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$771
(Flighttix)

One-way from

$110
(KLM)

Popular in

June

Cheapest in

September

Average price

$977
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. 20% potential increase in price ($214 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 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

Mon 10/5

3:53 pm-8:50 am

1 stop11h 57m

London Heathrow

Wed 10/14

11:45 am-11:59 pm

2 stops17h 14m

$864

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 9/8

10:25 am-6:30 am

1 stop15h 05m

London Heathrow

Tue 9/15

11:55 am-6:33 pm

1 stop11h 38m

$893

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/7

3:53 pm-6:45 am

1 stop9h 52m

London Heathrow

Tue 10/13

12:50 pm-10:59 pm

1 stop15h 09m

$893

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 10/4

3:53 pm-6:45 am

1 stop9h 52m

London Heathrow

Wed 10/14

11:20 am-10:59 pm

1 stop16h 39m

$893

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 10/8

12:10 pm-9:30 am

1 stop16h 20m

London Heathrow

Thu 10/15

11:55 am-7:01 pm

1 stop12h 06m

$895

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 9/23

10:33 am-8:35 am

2 stops17h 02m

London Heathrow

Sun 9/27

6:50 am-4:43 pm

2 stops14h 53m

$909
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 10/5

6:00 am-8:45 pm

1 stop9h 45m

London Heathrow

Sat 10/10

8:15 am-3:01 pm

1 stop11h 46m

$911

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/7

12:21 pm-7:15 am

1 stop13h 54m

London Heathrow

Mon 10/12

11:30 am-11:59 pm

2 stops17h 29m

$917

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 9/9

6:00 am-8:40 pm

1 stop9h 40m

London Heathrow

Wed 9/16

6:50 am-4:54 pm

2 stops15h 04m

$924

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 8/22

6:00 am-9:25 pm

1 stop10h 25m

London Heathrow

Wed 8/26

6:50 am-4:56 pm

2 stops15h 06m

$924

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 22 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 July.
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 85 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?

Airfare is typical for this route at the moment.

Buffalo to London Heathrow Airport flights typically cost between $729 and $1,174 in August.
The cheapest round-trip price found within the last 5 days was $771 on JetBlue (Aug 25-Sep 1).

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 July 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
8,484 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Food

7.2

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
8,484 reviews
Delta
7.8
Good
8,484 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Food

7.2

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
10,050 reviews
Delta
7.8
Good
8,484 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Food

7.2

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
11,840 reviews
Delta
7.8
Good
8,484 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Food

7.2

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
3,024 reviews
Delta
7.8
Good
8,484 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Food

7.2

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
8,129 reviews
Delta
7.8
Good
8,484 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Food

7.2

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 11h 57m. 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 British Airways, from $468. Users have found that KLM is 55% 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
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Northampton
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton

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 July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$380Average$729FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$451Average$998FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$468Average$727FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$490Average$777FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$540Average$854FlexibilityNo cancel feeOn-time72%
JetBlueCheapest$640Average$839FlexibilityNo cancel feeOn-time62%
DeltaCheapest$732Average$932FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.