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

KLM and Delta are the most popular carriers operating from Buffalo to London Heathrow

What airlines fly to London Heathrow Airport?

American Airlines, British Airways and United Airlines 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 33% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 7 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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 June 2026, there are 7 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.

$324 Cheap Flights from Buffalo to London Heathrow Airport in 2026

Q: What is the typical price of a round-trip flight between Buffalo and London Heathrow Airport?

Prices are currently low for flights on this route. Typical prices usually range from $1,178 to $866. The lowest price recently found on this route was $805.

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Find the cheapest flights from Buffalo to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:32 pm - 6:55 am

BUF

LHR

11h 23m

1 stop

7:25 am - 2:28 pm

LHR

BUF

12h 03m

1 stop

$805JetBlue

Mon, Nov 2 - Mon, Nov 9

1:03 pm - 6:50 am

BUF

LHR

12h 47m

1 stop

8:15 am - 2:26 pm

LHR

BUF

11h 11m

1 stop

$810Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

10:30 am - 6:35 am

BUF

LHR

15h 05m

2 stops

8:15 am - 7:01 pm

LHR

BUF

15h 46m

1 stop

$824Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

7:21 pm - 8:45 pm

BUF

LHR

20h 24m

1 stop

8:40 am - 7:24 pm

LHR

BUF

15h 44m

1 stop

$828JetBlue

Tue, Aug 4 - Sat, Aug 22

6:00 am - 6:30 am

BUF

LHR

19h 30m

1 stop

8:40 am - 7:13 pm

LHR

BUF

15h 33m

1 stop

$829JetBlue

Sun, Aug 16 - Mon, Aug 24

3:55 pm - 9:30 am

BUF

LHR

12h 35m

1 stop

8:40 am - 11:32 pm

LHR

BUF

19h 52m

1 stop

$831JetBlue

Wed, Aug 5 - Sun, Aug 23

2:32 pm - 6:55 am

BUF

LHR

11h 23m

1 stop

9:20 am - 8:24 pm

LHR

BUF

16h 04m

1 stop

$835JetBlue

Fri, Nov 6 - Tue, Nov 10

6:35 am - 8:45 pm

BUF

LHR

9h 10m

1 stop

8:15 am - 6:25 pm

LHR

BUF

15h 10m

1 stop

$838JetBlue

Wed, Jul 8 - Mon, Jul 13

2:32 pm - 6:55 am

BUF

LHR

11h 23m

1 stop

7:25 am - 2:28 pm

LHR

BUF

12h 03m

1 stop

$845JetBlue

Sat, Nov 7 - Sat, Nov 14

10:40 am - 7:55 am

BUF

LHR

16h 15m

2 stops

6:40 pm - 8:47 pm

LHR

BUF

31h 07m

2 stops

$850SWISS

Wed, Sep 30 - Tue, Oct 6

Iberia flights from Buffalo to London Heathrow Airport

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

Iberia

Sep 22

BUF12:09 pmBuffalo

14h 31m

1 stop

LHR7:40 amLondon Heathrow

Oct 4

LHR6:15 amLondon Heathrow

20h 55m

2 stops

BUF10:10 pmBuffalo

$863

Iberia

Sep 22

BUF6:56 pmBuffalo

10h 54m

1 stop

LHR10:50 amLondon Heathrow

Oct 5

LHR6:15 amLondon Heathrow

21h 55m

2 stops

BUF11:10 pmBuffalo

$864

Iberia

Sep 22

BUF12:09 pmBuffalo

17h 26m

2 stops

LHR10:35 amLondon Heathrow

Oct 5

LHR6:15 amLondon Heathrow

21h 55m

2 stops

BUF11:10 pmBuffalo

$871

JetBlue flights from Buffalo to London Heathrow Airport

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

JetBlue

Nov 2

BUF2:32 pmBuffalo

11h 23m

1 stop

LHR6:55 amLondon Heathrow

Nov 9

LHR7:25 amLondon Heathrow

12h 03m

1 stop

BUF2:28 pmBuffalo

$805

JetBlue

Aug 4

BUF7:21 pmBuffalo

20h 24m

1 stop

LHR8:45 pmLondon Heathrow

Aug 22

LHR8:40 amLondon Heathrow

15h 44m

1 stop

BUF7:24 pmBuffalo

$828

JetBlue

Aug 16

BUF6:00 amBuffalo

19h 30m

1 stop

LHR6:30 amLondon Heathrow

Aug 24

LHR8:40 amLondon Heathrow

15h 33m

1 stop

BUF7:13 pmBuffalo

$829

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

Cheapest round-trip

Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 11/2

2:32 pm-6:55 am

1 stop11h 23m

London Heathrow

Mon 11/9

7:25 am-2:28 pm

1 stop12h 03m

$805

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 9/1

1:03 pm-6:50 am

1 stop12h 47m

London Heathrow

Wed 9/9

8:15 am-2:26 pm

1 stop11h 11m

$810

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 9/1

10:30 am-6:35 am

2 stops15h 05m

London Heathrow

Wed 9/9

8:15 am-7:01 pm

1 stop15h 46m

$824

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 8/4

7:21 pm-8:45 pm

1 stop20h 24m

London Heathrow

Sat 8/22

8:40 am-7:24 pm

1 stop15h 44m

$828

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 8/16

6:00 am-6:30 am

1 stop19h 30m

London Heathrow

Mon 8/24

8:40 am-7:13 pm

1 stop15h 33m

$829

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

3:55 pm-9:30 am

1 stop12h 35m

London Heathrow

Sun 8/23

8:40 am-11:32 pm

1 stop19h 52m

$831

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 11/6

2:32 pm-6:55 am

1 stop11h 23m

London Heathrow

Tue 11/10

9:20 am-8:24 pm

1 stop16h 04m

$835

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 7/8

6:35 am-8:45 pm

1 stop9h 10m

London Heathrow

Mon 7/13

8:15 am-6:25 pm

1 stop15h 10m

$838

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 11/7

2:32 pm-6:55 am

1 stop11h 23m

London Heathrow

Sat 11/14

7:25 am-2:28 pm

1 stop12h 03m

$845

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 9/30

10:40 am-7:55 am

2 stops16h 15m

London Heathrow

Tue 10/6

6:40 pm-8:47 pm

2 stops31h 07m

$850

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

What is the typical price of a round-trip flight between Buffalo and London Heathrow Airport?

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

The month of September 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 September, then February is your next best option. Flight prices from Buffalo to London Heathrow Airport during February average around $633.

How far in advance should I book a flight from Buffalo 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 $789 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 $555 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 40m
Direct flights	None

The fastest flight from Buffalo to London Heathrow Airport takes 9h 40m

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

Search flight deals

Frequently asked questions about flying from Buffalo to London Heathrow Airport

How far is Buffalo to London Heathrow by plane?
London Heathrow is 3548.4 mi away from Buffalo. Flights usually cover this in 9h 40m, 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 June 2026, there are 7 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 American Airlines, making up 23% of the total bookings. Other popular airlines include United Airlines with 22%, British Airways with 20%, and JetBlue with 13%.

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
KLM	PriceFrom $380	Free Cancellation	Rating 7.8 1,527 reviews	Search KLM flights
United Airlines	PriceFrom $451	Free Cancellation	Rating 7.4 9,777 reviews	Search United Airlines flights
American Airlines	PriceFrom $522	Free Cancellation	Rating 7.1 11,652 reviews	Search American Airlines flights
British Airways	PriceFrom $534	Free Cancellation	Rating 6.7 8,028 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom $540	Free Cancellation	Rating 7.5 689 reviews	Search Virgin Atlantic flights
JetBlue	PriceFrom $639	Free Cancellation	Rating 7.1 2,979 reviews	Search JetBlue flights
Delta	PriceFrom $710	Free Cancellation	Rating 7.9 8,395 reviews	Search Delta flights

Hounslow

Gatwick

Milton Keynes

Luton

Dover

Hayes

Crawley

Croydon

Wembley

Stratford-upon-Avon

Stansted

Slough

Harrow

Brentwood

Watford

Cobham

Guildford

Folkestone

Uxbridge

Romford

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

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Flights to London Gatwick Airportfrom $394

Flights to London Stansted Airportfrom $435

Flights to London City Airportfrom $766

Flights to London Luton Airportfrom $412

Flights to Glasgow Intl Airportfrom $576

Flights to London Southend Airportfrom $693

Flights to Belfast Intl Airportfrom $711

Flights to Belfast City Airportfrom $711

Cheap flights from Buffalo to London from $324

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 8/23. 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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Iberia flights from Buffalo to London Heathrow Airport

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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 typical price of a round-trip flight between Buffalo and London Heathrow Airport?

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

How far in advance should I book a flight from Buffalo 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?

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

Frequently asked questions about flying 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?

An easier way to manage your London Heathrow Airport trip

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