What airlines fly to London Heathrow Airport?

American Airlines, United Airlines and British Airways are the top three most popular airlines that fly to London Heathrow Airport from Buffalo according to our data. American Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 6 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Buffalo to London Heathrow?

United Airlines is the most popular carrier operating from Buffalo to London Heathrow

Which layover airport has the shortest connection time from Buffalo to London Heathrow Airport?

Philadelphia (PHL) has the shortest average layover time for this route: 1h 18m.

Which layover airport has the shortest travel time from Buffalo to London Heathrow Airport?

Flights connecting via Philadelphia (PHL) have the shortest average one-way travel time: 9h 32m.

Which layover airport offers the lowest fares from Buffalo to London Heathrow Airport?

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $583.

Which airport is the most popular layover for flights between Buffalo and London Heathrow Airport?

New York (JFK) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Buffalo Airport to London Heathrow Airport?

Prices for flights from Buffalo Airport to London Heathrow Airport were last updated today.

How many operators does momondo search for flights from Buffalo Airport to London Heathrow Airport?

As of February 2026, there are 6 operators available to choose from for flights from Buffalo Airport to London Heathrow Airport.

How old do you have to be to fly from Buffalo Airport to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$220 Cheap Flights from Buffalo to London Heathrow Airport in 2026

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7:30 pm - 6:35 pm

BUF

LHR

19h 05m

2 stops

10:50 am - 11:50 pm

LHR

BUF

18h 00m

2 stops

$640Lufthansa

Mon, Mar 23 - Tue, Mar 31

6:00 am - 9:20 pm

BUF

LHR

11h 20m

1 stop

1:25 pm - 8:46 pm

LHR

BUF

35h 21m

2 stops

$641United Airlines

Fri, Mar 20 - Tue, Mar 24

11:31 am - 7:40 am

BUF

LHR

15h 09m

1 stop

7:50 am - 9:36 pm

LHR

BUF

18h 46m

2 stops

$644Iberia

Mon, Apr 27 - Tue, May 5

6:00 am - 8:40 pm

BUF

LHR

9h 40m

1 stop

6:50 am - 5:16 pm

LHR

BUF

15h 26m

2 stops

$649United Airlines

Tue, Mar 31 - Tue, Apr 7

7:00 am - 6:30 am

BUF

LHR

19h 30m

2 stops

1:25 pm - 4:42 pm

LHR

BUF

31h 17m

2 stops

$650Air Canada

Wed, Mar 18 - Wed, Mar 25

3:56 pm - 8:05 am

BUF

LHR

12h 09m

1 stop

4:10 pm - 12:14 am

LHR

BUF

12h 04m

1 stop

$651KLM

Fri, Mar 20 - Tue, Mar 24

5:57 pm - 6:30 am

BUF

LHR

55h 33m

2 stops

10:50 am - 11:33 pm

LHR

BUF

17h 43m

2 stops

$652Multiple Airlines

Fri, Apr 24 - Tue, May 5

1:52 pm - 8:20 am

BUF

LHR

13h 28m

2 stops

6:50 am - 5:16 pm

LHR

BUF

15h 26m

2 stops

$653United Airlines

Tue, Mar 31 - Tue, Apr 7

6:00 am - 9:40 pm

BUF

LHR

10h 40m

1 stop

9:20 am - 9:25 pm

LHR

BUF

17h 05m

1 stop

$661JetBlue

Thu, Feb 26 - Thu, Mar 5

10:30 am - 9:40 pm

BUF

LHR

30h 10m

1 stop

8:05 am - 9:35 am

LHR

BUF

30h 30m

1 stop

$662JetBlue

Mon, Mar 2 - Fri, Mar 6

Lufthansa flights from Buffalo to London Heathrow Airport

Our best Lufthansa deals on Buffalo to London Heathrow Airport flight tickets

Lufthansa

Mar 23

BUF7:30 pmBuffalo

17h 35m

2 stops

LHR5:05 pmLondon Heathrow

Mar 31

LHR9:00 amLondon Heathrow

19h 50m

2 stops

BUF11:50 pmBuffalo

$640

Lufthansa

Mar 23

BUF7:30 pmBuffalo

17h 35m

2 stops

LHR5:05 pmLondon Heathrow

Mar 31

LHR9:00 amLondon Heathrow

19h 50m

2 stops

BUF11:50 pmBuffalo

$669

Delta flights from Buffalo to London Heathrow Airport

Our best Delta deals on Buffalo to London Heathrow Airport flight tickets

Delta

Mar 18

BUF12:07 pmBuffalo

15h 43m

1 stop

LHR7:50 amLondon Heathrow

Mar 25

LHR8:00 pmLondon Heathrow

19h 44m

2 stops

BUF11:44 amBuffalo

$666

Delta

Mar 23

BUF12:07 pmBuffalo

14h 18m

1 stop

LHR6:25 amLondon Heathrow

Mar 31

LHR8:55 amLondon Heathrow

19h 00m

2 stops

BUF10:55 pmBuffalo

$672

Delta

May 13

BUF10:32 amBuffalo

14h 48m

1 stop

LHR6:20 amLondon Heathrow

May 22

LHR4:05 pmLondon Heathrow

13h 14m

1 stop

BUF12:19 amBuffalo

$699

momondo Fare Finder

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

Mon 3/23

7:30 pm-6:35 pm

2 stops19h 05m

London Heathrow

Tue 3/31

10:50 am-11:50 pm

2 stops18h 00m

$640

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 3/20

6:00 am-9:20 pm

1 stop11h 20m

London Heathrow

Tue 3/24

1:25 pm-8:46 pm

2 stops35h 21m

$641

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 4/27

11:31 am-7:40 am

1 stop15h 09m

London Heathrow

Tue 5/5

7:50 am-9:36 pm

2 stops18h 46m

$644

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 3/31

6:00 am-8:40 pm

1 stop9h 40m

London Heathrow

Tue 4/7

6:50 am-5:16 pm

2 stops15h 26m

$649

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 3/18

7:00 am-6:30 am

2 stops19h 30m

London Heathrow

Wed 3/25

1:25 pm-4:42 pm

2 stops31h 17m

$650

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 3/20

3:56 pm-8:05 am

1 stop12h 09m

London Heathrow

Tue 3/24

4:10 pm-12:14 am

1 stop12h 04m

$651

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 4/24

5:57 pm-6:30 am

2 stops55h 33m

London Heathrow

Tue 5/5

10:50 am-11:33 pm

2 stops17h 43m

$652

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 3/31

1:52 pm-8:20 am

2 stops13h 28m

London Heathrow

Tue 4/7

6:50 am-5:16 pm

2 stops15h 26m

$653

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 2/26

6:00 am-9:40 pm

1 stop10h 40m

London Heathrow

Thu 3/5

9:20 am-9:25 pm

1 stop17h 05m

$661

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 3/2

10:30 am-9:40 pm

1 stop30h 10m

London Heathrow

Fri 3/6

8:05 am-9:35 am

1 stop30h 30m

$662

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Buffalo to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

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Layovers

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Buffalo, with most prices found around $610. If you’re not able to fly to London Heathrow Airport in February, then September is your next best option. Flight prices from Buffalo to London Heathrow Airport during September average around $631.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $783 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Buffalo for as low as $580 on momondo.

How have Buffalo to London Heathrow Airport flight prices changed over time?

When to book flights from Buffalo to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Buffalo to London Heathrow Airport (BUF to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to London Heathrow Airport

Fastest flight time	9h 10m
Direct flights	None

The fastest flight from Buffalo to London Heathrow Airport takes 9h 10m

There are no direct flights from Buffalo to London Heathrow Airport. There are no popular flight routes from Buffalo to London Heathrow Airport.

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How far is Buffalo to London Heathrow by plane?
London Heathrow is 3548.4 mi away from Buffalo. Flights usually cover this in 9h 10m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Buffalo Airport to London Heathrow Airport?
Prices for flights from Buffalo Airport to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Buffalo Airport to London Heathrow Airport?
As of February 2026, there are 6 operators available to choose from for flights from Buffalo Airport to London Heathrow Airport.
How old do you have to be to fly from Buffalo Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Buffalo to London Heathrow Airport?
Based on momondo bookings for flights between Buffalo and London Heathrow Airport, the leading airline is British Airways, making up 24% of the total bookings. Other popular airlines include American Airlines with 21%, JetBlue with 16%, and United Airlines with 15%.

Best airlines flying from Buffalo to London Heathrow Airport

Compare and see reviews for airlines that fly from Buffalo to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $451	Free Cancellation	Rating 7.4 9,293 reviews	Search United Airlines flights
American Airlines	PriceFrom $522	Free Cancellation	Rating 7.2 11,295 reviews	Search American Airlines flights
British Airways	PriceFrom $534	Free Cancellation	Rating 6.7 7,742 reviews	Search British Airways flights
Delta	PriceFrom $582	Free Cancellation	Rating 7.9 8,205 reviews	Search Delta flights
JetBlue	PriceFrom $593	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
Virgin Atlantic	PriceFrom $636	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Crawley

Hayes

Wembley

Dartford

Stratford-upon-Avon

Croydon

Brentwood

Guildford

Harrow

Watford

Cobham

Folkestone

Romford

Stansted

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Buffalo to London. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Buffalo to London with flexible booking policies on momondo?

Flights from Buffalo to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Buffalo to London?

momondo helps you find the best flight between Buffalo and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Buffalo to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Buffalo and alert you when they change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Flights to London Gatwick Airportfrom $382

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Flights to London Stansted Airportfrom $341

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Flights to Belfast Intl Airportfrom $539

Flights to London Southend Airportfrom $452

Flights to Belfast City Airportfrom $539

Cheap flights from Buffalo to London from $220

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to London departing on 8/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Use the filters below to find and compare flights from Buffalo to London Heathrow Airport that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Buffalo to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

How far in advance should I book a flight to London Heathrow Airport?

How have Buffalo to London Heathrow Airport flight prices changed over time?

What is the cheapest airline that flies from Buffalo to London Heathrow?

What airlines fly to London Heathrow Airport?

Which airport is the most popular layover for flights between Buffalo and London Heathrow Airport?

Which layover airport offers the lowest fares from Buffalo to London Heathrow Airport?

Which layover airport has the shortest travel time from Buffalo to London Heathrow Airport?

Which layover airport has the shortest connection time from Buffalo to London Heathrow Airport?

When to book flights from Buffalo to London Heathrow Airport

Cheap Buffalo to London Heathrow Airport (BUF to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to London Heathrow Airport

Fastest flight time

Direct flights

Best airlines flying from Buffalo to London Heathrow Airport

Compare and see reviews for airlines that fly from Buffalo to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to London?

Can I find flights from Buffalo to London with flexible booking policies on momondo?

How can momondo help me find flights from Buffalo to London?

I’m not ready to book a flight from Buffalo to London right now. Can momondo alert me if prices change?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

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