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

JetBlue, Scandinavian Airlines, and United Airlines are the most popular carriers operating from Buffalo to London Heathrow

What airlines fly to London Heathrow Airport?

JetBlue, American Airlines and Delta are the top three most popular airlines that fly to London Heathrow Airport from Buffalo according to our data. JetBlue is the first choice among our users, with 30% 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.

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

New York (JFK) was the most common stop: 75% 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 September 2025, 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.

$323 Cheap Flights from Buffalo to London Heathrow Airport in 2025

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Cheap round-trip flights

5:55 pm - 11:45 amBUF-LHR

12h 50m1 stop

3:10 pm - 10:58 pmLHR-BUF

11h 48m1 stop

$484Lufthansa

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Wed, Oct 22 - Wed, Oct 29

5:55 pm - 11:45 amBUF-LHR

12h 50m1 stop

4:00 pm - 11:33 amLHR-BUF

23h 33m1 stop

$498United Airlines

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Wed, Oct 22 - Wed, Oct 29

7:45 pm - 6:55 amBUF-LHR

30h 10m1 stop

9:30 am - 10:03 amLHR-BUF

53h 33m2 stops

$518United Airlines

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Sat, Sep 27 - Thu, Oct 23

7:45 pm - 6:30 amBUF-LHR

29h 45m2 stops

6:50 am - 9:13 pmLHR-BUF

19h 23m2 stops

$520United Airlines

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Sat, Sep 27 - Thu, Oct 23

1:45 pm - 7:15 amBUF-LHR

12h 30m1 stop

11:30 am - 10:52 pmLHR-BUF

15h 22m2 stops

$523Delta

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Tue, Oct 14 - Tue, Oct 28

7:00 am - 9:15 amBUF-LHR

21h 15m1 stop

6:20 am - 7:19 pmLHR-BUF

17h 59m2 stops

$524Delta

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Sun, Sep 21 - Thu, Dec 11

7:55 pm - 11:25 amBUF-LHR

10h 30m1 stop

8:00 pm - 10:31 amLHR-BUF

18h 31m1 stop

$541Virgin Atlantic

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Thu, Oct 23 - Thu, Oct 30

4:26 pm - 10:25 amBUF-LHR

12h 59m1 stop

7:05 pm - 6:35 pmLHR-BUF

28h 30m2 stops

$548British Airways

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Sun, Nov 16 - Mon, Nov 24

11:15 am - 6:25 amBUF-LHR

14h 10m1 stop

1:00 pm - 10:52 pmLHR-BUF

13h 52m1 stop

$553Virgin Atlantic

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Fri, Oct 24 - Fri, Oct 31

1:28 pm - 6:40 amBUF-LHR

12h 12m1 stop

12:30 pm - 6:38 pmLHR-BUF

11h 08m1 stop

$616American Airlines

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Thu, Sep 25 - Wed, Oct 1

KLM flights from Buffalo to London Heathrow Airport

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

KLM

Sep 21

BUF7:08 pmBuffalo

13h 22m

1 stop

LHR1:30 pmLondon Heathrow

Oct 7

LHR4:05 pmLondon Heathrow

12h 51m

1 stop

BUF11:56 pmBuffalo

$521

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KLM

Oct 22

BUF3:57 pmBuffalo

11h 53m

1 stop

LHR8:50 amLondon Heathrow

Oct 29

LHR10:10 amLondon Heathrow

13h 00m

1 stop

BUF7:10 pmBuffalo

$530

Find similar

KLM

Sep 21

BUF7:08 pmBuffalo

13h 22m

1 stop

LHR1:30 pmLondon Heathrow

Oct 6

LHR4:05 pmLondon Heathrow

12h 51m

1 stop

BUF11:56 pmBuffalo

$571

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Air Canada flights from Buffalo to London Heathrow Airport

Our best Air Canada deals on Buffalo to London Heathrow Airport flight tickets

Air Canada

Oct 15

BUF7:07 amBuffalo

20h 28m

2 stops

LHR8:35 amLondon Heathrow

Oct 21

LHR9:30 amLondon Heathrow

16h 43m

2 stops

BUF9:13 pmBuffalo

$522

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Air Canada

Oct 1

BUF7:07 amBuffalo

18h 23m

2 stops

LHR6:30 amLondon Heathrow

Oct 8

LHR8:30 amLondon Heathrow

17h 43m

2 stops

BUF9:13 pmBuffalo

$529

Find similar

Air Canada

Oct 8

BUF7:07 amBuffalo

23h 43m

2 stops

LHR11:50 amLondon Heathrow

Oct 15

LHR8:30 amLondon Heathrow

17h 43m

2 stops

BUF9:13 pmBuffalo

$543

Find similar

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/22

5:55 pm-11:45 am

1 stop12h 50m

London Heathrow

Wed 10/29

3:10 pm-10:58 pm

1 stop11h 48m

$484

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/22

5:55 pm-11:45 am

1 stop12h 50m

London Heathrow

Wed 10/29

4:00 pm-11:33 am

1 stop23h 33m

$498

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 9/27

7:45 pm-6:55 am

1 stop30h 10m

London Heathrow

Thu 10/23

9:30 am-10:03 am

2 stops53h 33m

$518

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 9/27

7:45 pm-6:30 am

2 stops29h 45m

London Heathrow

Thu 10/23

6:50 am-9:13 pm

2 stops19h 23m

$520

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 10/14

1:45 pm-7:15 am

1 stop12h 30m

London Heathrow

Tue 10/28

11:30 am-10:52 pm

2 stops15h 22m

$523

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 9/21

7:00 am-9:15 am

1 stop21h 15m

London Heathrow

Thu 12/11

6:20 am-7:19 pm

2 stops17h 59m

$524

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 10/23

7:55 pm-11:25 am

1 stop10h 30m

London Heathrow

Thu 10/30

8:00 pm-10:31 am

1 stop18h 31m

$541

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 11/16

4:26 pm-10:25 am

1 stop12h 59m

London Heathrow

Mon 11/24

7:05 pm-6:35 pm

2 stops28h 30m

$548

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 10/24

11:15 am-6:25 am

1 stop14h 10m

London Heathrow

Fri 10/31

1:00 pm-10:52 pm

1 stop13h 52m

$553

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 9/25

1:28 pm-6:40 am

1 stop12h 12m

London Heathrow

Wed 10/1

12:30 pm-6:38 pm

1 stop11h 08m

$616

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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

Airlines

Layovers

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

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Buffalo, with most prices found around $631. If you’re not able to fly to London Heathrow Airport in October, then September is your next best option. Flight prices from Buffalo to London Heathrow Airport during September average around $640.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Sunday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $740. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $796.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Buffalo to London Heathrow Airport at noon for as low as $737. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $806.

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 $750 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 $605 on momondo.

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

As of September 2025, prices for Buffalo to London Heathrow Airport flights are approximately 7% cheaper when compared to flights at the same time last year.

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

Direct flights	None

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 58m, 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 September 2025, 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 JetBlue, making up 32% of the total bookings. Other popular airlines include British Airways with 19%, American Airlines with 16%, and Delta 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 8,943 reviews	Search United Airlines flights
JetBlue	PriceFrom $454	Free Cancellation	Rating 7.2 2,913 reviews	Search JetBlue flights
American Airlines	PriceFrom $522	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $534	Free Cancellation	Rating 6.7 7,358 reviews	Search British Airways flights
Delta	PriceFrom $596	Free Cancellation	Rating 7.9 7,965 reviews	Search Delta flights
Virgin Atlantic	PriceFrom $636	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights

Gatwick

Hounslow

Dover

Luton

Slough

Milton Keynes

Hayes

Guildford

Dartford

Crawley

Stansted

Chelmsford

Salisbury

Brentwood

Ilford

Folkestone

Colchester

Swindon

Stratford-upon-Avon

Watford

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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Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $346

Flights to London City Airportfrom $451

Flights to London Stansted Airportfrom $388

Flights to London Luton Airportfrom $413

Flights to Glasgow Intl Airportfrom $394

Flights to Belfast Intl Airportfrom $451

Flights to London Southend Airportfrom $428

Flights to Belfast City Airportfrom $513

Cheap flights from Buffalo to London from $323

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 1/18. 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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KLM flights from Buffalo to London Heathrow Airport

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

Air Canada flights from Buffalo to London Heathrow Airport

Our best Air Canada deals on Buffalo to London Heathrow Airport flight tickets

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

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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

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

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Sunday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $740. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $796.

What is the cheapest time of day to depart on your flight 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?

As of September 2025, prices for Buffalo to London Heathrow Airport flights are approximately 7% cheaper when compared to flights at the same time last year.

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

JetBlue, Scandinavian Airlines, and United Airlines are the most popular carriers operating 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?

New York (JFK) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

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

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

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

Direct flights

How far is Buffalo to London Heathrow by plane?

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

How many operators does momondo search 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?

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

What is the most popular airline from Buffalo to London Heathrow Airport?

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

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo