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Cheap flights from Buffalo to London from $321

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 8/4. 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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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.
Virgin Atlantic Logo
7:15 pm - 12:05 pm
BUF
-
LHR
11h 50m
1 stop
Virgin Atlantic Logo
3:50 pm - 11:56 pm
LHR
-
BUF
13h 06m
1 stop
$703Virgin Atlantic
mar., ago. 25 - sáb., sep. 12
Virgin Atlantic Logo
7:15 pm - 12:05 pm
BUF
-
LHR
11h 50m
1 stop
Virgin Atlantic Logo
3:50 pm - 11:56 pm
LHR
-
BUF
13h 06m
1 stop
$706Virgin Atlantic
mar., ago. 25 - sáb., sep. 12
Air France Logo
7:15 pm - 10:20 am
BUF
-
LHR
10h 05m
1 stop
Air France Logo
4:20 pm - 11:56 pm
LHR
-
BUF
12h 36m
1 stop
$708Air France
mié., ago. 26 - vie., sep. 11
KLM Logo
7:40 pm - 1:15 pm
BUF
-
LHR
12h 35m
1 stop
KLM Logo
2:45 pm - 11:56 pm
LHR
-
BUF
38h 11m
2 stops
$718KLM
mar., ago. 25 - sáb., sep. 12
Multiple Airlines Logo
3:53 pm - 8:50 am
BUF
-
LHR
11h 57m
1 stop
Multiple Airlines Logo
8:20 am - 3:02 pm
LHR
-
BUF
11h 42m
1 stop
$727Multiple Airlines
dom., may. 10 - dom., may. 17
Delta Logo
10:00 am - 8:50 am
BUF
-
LHR
17h 50m
1 stop
Delta Logo
6:30 am - 7:00 pm
LHR
-
BUF
17h 30m
2 stops
$729Delta
mié., ago. 5 - jue., ago. 20
Delta Logo
12:50 pm - 8:50 am
BUF
-
LHR
15h 00m
2 stops
Delta Logo
9:55 am - 11:03 pm
LHR
-
BUF
18h 08m
2 stops
$733Delta
mié., ago. 26 - vie., sep. 11
Delta Logo
12:03 pm - 8:50 am
BUF
-
LHR
15h 47m
2 stops
Delta Logo
6:30 am - 7:00 pm
LHR
-
BUF
17h 30m
2 stops
$734Delta
mié., ago. 5 - jue., ago. 20
Delta Logo
7:15 pm - 10:20 am
BUF
-
LHR
10h 05m
1 stop
Delta Logo
8:55 am - 3:36 pm
LHR
-
BUF
11h 41m
1 stop
$735Delta
vie., oct. 23 - dom., nov. 8
KLM Logo
3:50 pm - 7:10 am
BUF
-
LHR
10h 20m
1 stop
KLM Logo
4:20 pm - 11:56 pm
LHR
-
BUF
12h 36m
1 stop
$736KLM
sáb., ago. 15 - sáb., ago. 29

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
May 7
BUF6:00 pmBuffalo
11h 30m
1 stop
LHR10:30 amLondon Heathrow
May 15
LHR9:15 amLondon Heathrow
11h 14m
1 stop
BUF3:29 pmBuffalo
$951
British Airways
May 8
BUF6:00 pmBuffalo
11h 30m
1 stop
LHR10:30 amLondon Heathrow
May 19
LHR9:15 amLondon Heathrow
11h 14m
1 stop
BUF3:29 pmBuffalo
$1,173

United Airlines flights from Buffalo to London Heathrow Airport

Our best United Airlines deals on Buffalo to London Heathrow Airport flight tickets
United Airlines
Oct 3
BUF7:55 pmBuffalo
30h 00m
1 stop
LHR6:55 amLondon Heathrow
Oct 6
LHR6:50 amLondon Heathrow
21h 36m
2 stops
BUF11:26 pmBuffalo
$765
United Airlines
Oct 3
BUF10:50 amBuffalo
42h 10m
2 stops
LHR10:00 amLondon Heathrow
Oct 6
LHR6:50 amLondon Heathrow
21h 36m
2 stops
BUF11:26 pmBuffalo
$768
United Airlines
Aug 26
BUF6:00 amBuffalo
10h 25m
1 stop
LHR9:25 pmLondon Heathrow
Sep 11
LHR6:50 amLondon Heathrow
17h 04m
2 stops
BUF6:54 pmBuffalo
$889

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 abril 30, 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

mar. 8/25

7:15 pm-12:05 pm

1 stop11h 50m

London Heathrow

sáb. 9/12

3:50 pm-11:56 pm

1 stop13h 06m

$703

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

mar. 8/25

7:15 pm-12:05 pm

1 stop11h 50m

London Heathrow

sáb. 9/12

3:50 pm-11:56 pm

1 stop13h 06m

$706

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

mié. 8/26

7:15 pm-10:20 am

1 stop10h 05m

London Heathrow

vie. 9/11

4:20 pm-11:56 pm

1 stop12h 36m

$708

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

mar. 8/25

7:40 pm-1:15 pm

1 stop12h 35m

London Heathrow

sáb. 9/12

2:45 pm-11:56 pm

2 stops38h 11m

$718

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

dom. 5/10

3:53 pm-8:50 am

1 stop11h 57m

London Heathrow

dom. 5/17

8:20 am-3:02 pm

1 stop11h 42m

$727

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

mié. 8/5

10:00 am-8:50 am

1 stop17h 50m

London Heathrow

jue. 8/20

6:30 am-7:00 pm

2 stops17h 30m

$729

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

mié. 8/26

12:50 pm-8:50 am

2 stops15h 00m

London Heathrow

vie. 9/11

9:55 am-11:03 pm

2 stops18h 08m

$733

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

mié. 8/5

12:03 pm-8:50 am

2 stops15h 47m

London Heathrow

jue. 8/20

6:30 am-7:00 pm

2 stops17h 30m

$734
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

vie. 10/23

7:15 pm-10:20 am

1 stop10h 05m

London Heathrow

dom. 11/8

8:55 am-3:36 pm

1 stop11h 41m

$735

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

sáb. 8/15

3:50 pm-7:10 am

1 stop10h 20m

London Heathrow

sáb. 8/29

4:20 pm-11:56 pm

1 stop12h 36m

$736

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

9h 48m

Direct flights

None
The fastest flight from Buffalo to London Heathrow Airport takes 9h 48m
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 48m, 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
1,512 reviews
Search KLM flights
United AirlinesPriceFrom $451Free CancellationRating
7.4
9,677 reviews
Search United Airlines flights
American AirlinesPriceFrom $522Free CancellationRating
7.1
11,682 reviews
Search American Airlines flights
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,937 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $540Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
JetBluePriceFrom $597Free CancellationRating
7.2
2,967 reviews
Search JetBlue flights
DeltaPriceFrom $710Free CancellationRating
7.9
8,465 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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