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Cheap flights from Buffalo to London from $444

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 7/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Buffalo to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
10:29 am - 6:30 am
BUF
-
LHR
15h 01m
1 stop
JetBlue Logo
8:40 am - 10:32 pm
LHR
-
BUF
18h 52m
1 stop
$891JetBlue
Mon, May 11 - Mon, May 18
JetBlue Logo
7:00 am - 6:30 am
BUF
-
LHR
18h 30m
1 stop
JetBlue Logo
8:40 am - 10:32 pm
LHR
-
BUF
18h 52m
1 stop
$892JetBlue
Sun, May 10 - Sun, May 17
JetBlue Logo
2:28 pm - 6:30 am
BUF
-
LHR
11h 02m
1 stop
JetBlue Logo
11:55 am - 8:58 am
LHR
-
BUF
26h 03m
1 stop
$898JetBlue
Sun, May 10 - Tue, May 26
British Airways Logo
6:10 pm - 11:15 am
BUF
-
LHR
12h 05m
1 stop
British Airways Logo
9:45 am - 5:01 pm
LHR
-
BUF
12h 16m
1 stop
$902British Airways
Wed, Aug 5 - Thu, Aug 20
British Airways Logo
6:10 pm - 11:15 am
BUF
-
LHR
12h 05m
1 stop
British Airways Logo
9:45 am - 5:01 pm
LHR
-
BUF
12h 16m
1 stop
$903British Airways
Wed, Aug 5 - Thu, Aug 20
United Airlines Logo
6:00 am - 5:55 am
BUF
-
LHR
18h 55m
1 stop
United Airlines Logo
2:10 pm - 10:01 am
LHR
-
BUF
24h 51m
3 stops
$917United Airlines
Wed, Aug 5 - Thu, Aug 20
United Airlines Logo
6:00 am - 7:15 am
BUF
-
LHR
20h 15m
1 stop
United Airlines Logo
2:10 pm - 10:01 am
LHR
-
BUF
24h 51m
3 stops
$918United Airlines
Wed, Aug 5 - Thu, Aug 20
Delta Logo
7:55 pm - 2:35 pm
BUF
-
LHR
13h 40m
1 stop
Delta Logo
6:30 am - 7:15 pm
LHR
-
BUF
17h 45m
2 stops
$927Delta
Sun, May 10 - Sun, May 17
United Airlines Logo
11:02 am - 6:30 am
BUF
-
LHR
14h 28m
2 stops
United Airlines Logo
7:25 am - 6:35 pm
LHR
-
BUF
16h 10m
2 stops
$928United Airlines
Mon, May 11 - Mon, May 18
British Airways Logo
10:06 am - 6:50 am
BUF
-
LHR
15h 44m
1 stop
British Airways Logo
6:15 am - 7:07 pm
LHR
-
BUF
17h 52m
2 stops
$932British Airways
Wed, Aug 5 - Thu, Aug 20

British Airways flights from Buffalo to London Heathrow Airport

Our best British Airways deals on Buffalo to London Heathrow Airport flight tickets
British Airways
Aug 5
BUF6:10 pmBuffalo
12h 05m
1 stop
LHR11:15 amLondon Heathrow
Aug 20
LHR9:45 amLondon Heathrow
12h 16m
1 stop
BUF5:01 pmBuffalo
$902
British Airways
Aug 5
BUF6:10 pmBuffalo
12h 05m
1 stop
LHR11:15 amLondon Heathrow
Aug 20
LHR9:45 amLondon Heathrow
12h 16m
1 stop
BUF5:01 pmBuffalo
$903
British Airways
Aug 5
BUF10:06 amBuffalo
15h 44m
1 stop
LHR6:50 amLondon Heathrow
Aug 20
LHR6:15 amLondon Heathrow
17h 52m
2 stops
BUF7:07 pmBuffalo
$932

Delta flights from Buffalo to London Heathrow Airport

Our best Delta deals on Buffalo to London Heathrow Airport flight tickets
Delta
May 10
BUF7:55 pmBuffalo
13h 40m
1 stop
LHR2:35 pmLondon Heathrow
May 17
LHR6:30 amLondon Heathrow
17h 45m
2 stops
BUF7:15 pmBuffalo
$927
Delta
May 8
BUF7:55 pmBuffalo
12h 50m
2 stops
LHR1:45 pmLondon Heathrow
May 15
LHR9:55 amLondon Heathrow
19h 04m
2 stops
BUF11:59 pmBuffalo
$932
Delta
Jul 22
BUF3:54 pmBuffalo
16h 21m
2 stops
LHR1:15 pmLondon Heathrow
Aug 22
LHR10:45 amLondon Heathrow
17h 24m
1 stop
BUF11:09 pmBuffalo
$960

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated May 7, 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 5/11

10:29 am-6:30 am

1 stop15h 01m

London Heathrow

Mon 5/18

8:40 am-10:32 pm

1 stop18h 52m

$891

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 5/10

7:00 am-6:30 am

1 stop18h 30m

London Heathrow

Sun 5/17

8:40 am-10:32 pm

1 stop18h 52m

$892

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 5/10

2:28 pm-6:30 am

1 stop11h 02m

London Heathrow

Tue 5/26

11:55 am-8:58 am

1 stop26h 03m

$898
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

6:10 pm-11:15 am

1 stop12h 05m

London Heathrow

Thu 8/20

9:45 am-5:01 pm

1 stop12h 16m

$902

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

6:10 pm-11:15 am

1 stop12h 05m

London Heathrow

Thu 8/20

9:45 am-5:01 pm

1 stop12h 16m

$903

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

6:00 am-5:55 am

1 stop18h 55m

London Heathrow

Thu 8/20

2:10 pm-10:01 am

3 stops24h 51m

$917

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

6:00 am-7:15 am

1 stop20h 15m

London Heathrow

Thu 8/20

2:10 pm-10:01 am

3 stops24h 51m

$918

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 5/10

7:55 pm-2:35 pm

1 stop13h 40m

London Heathrow

Sun 5/17

6:30 am-7:15 pm

2 stops17h 45m

$927

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 5/11

11:02 am-6:30 am

2 stops14h 28m

London Heathrow

Mon 5/18

7:25 am-6:35 pm

2 stops16h 10m

$928

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

10:06 am-6:50 am

1 stop15h 44m

London Heathrow

Thu 8/20

6:15 am-7:07 pm

2 stops17h 52m

$932

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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 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 $788 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

12h 05m

Direct flights

None
The fastest flight from Buffalo to London Heathrow Airport takes 12h 05m
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 12h 05m, 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?

  • 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?

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
KLMPriceFrom $380Free CancellationRating
7.8
1,511 reviews
Search KLM flights
United AirlinesPriceFrom $451Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
American AirlinesPriceFrom $522Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,951 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $540Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
JetBluePriceFrom $618Free CancellationRating
7.1
2,979 reviews
Search JetBlue flights
DeltaPriceFrom $710Free CancellationRating
7.9
8,458 reviews
Search Delta flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Stratford-upon-Avon
Crawley
Slough
Wembley
Stansted
Watford
Croydon
Uxbridge
Brentwood
Dartford
Cobham
Folkestone
Romford
Harrow

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.
Start using Trips
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