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Cheap flights from Buffalo to London from $270

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 5/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Virgin Atlantic Logo
4:03 pm - 7:10 am
BUF
-
LHR
10h 07m
1 stop
Virgin Atlantic Logo
4:20 pm - 12:19 am
LHR
-
BUF
12h 59m
1 stop
$712Virgin Atlantic
Sat, Apr 25 - Fri, May 8
KLM Logo
12:09 pm - 6:25 am
BUF
-
LHR
13h 16m
1 stop
KLM Logo
3:50 pm - 12:19 am
LHR
-
BUF
13h 29m
1 stop
$723KLM
Tue, May 5 - Tue, May 12
Delta Logo
10:32 am - 8:50 am
BUF
-
LHR
17h 18m
1 stop
Delta Logo
6:30 am - 7:15 pm
LHR
-
BUF
17h 45m
2 stops
$725Delta
Thu, May 7 - Thu, May 14
Delta Logo
2:34 pm - 6:20 am
BUF
-
LHR
10h 46m
1 stop
Delta Logo
6:15 am - 6:51 pm
LHR
-
BUF
17h 36m
2 stops
$726Delta
Thu, Apr 23 - Fri, May 8
Delta Logo
12:04 pm - 10:20 am
BUF
-
LHR
17h 16m
2 stops
Delta Logo
6:15 am - 6:51 pm
LHR
-
BUF
17h 36m
2 stops
$729Delta
Thu, May 7 - Fri, May 15
Delta Logo
12:04 pm - 8:50 am
BUF
-
LHR
15h 46m
2 stops
Delta Logo
11:30 am - 11:59 pm
LHR
-
BUF
17h 29m
2 stops
$730Delta
Fri, May 8 - Sun, May 17
KLM Logo
7:40 pm - 1:15 pm
BUF
-
LHR
12h 35m
1 stop
KLM Logo
10:45 am - 6:51 pm
LHR
-
BUF
13h 06m
1 stop
$731KLM
Fri, Apr 24 - Fri, May 1
KLM Logo
12:50 pm - 7:10 am
BUF
-
LHR
13h 20m
1 stop
KLM Logo
11:20 am - 7:15 pm
LHR
-
BUF
12h 55m
1 stop
$732KLM
Thu, Apr 23 - Fri, May 8
Delta Logo
12:09 pm - 6:25 am
BUF
-
LHR
13h 16m
1 stop
Delta Logo
8:40 am - 7:19 pm
LHR
-
BUF
15h 39m
2 stops
$741Delta
Fri, May 1 - Sun, May 3
Delta Logo
2:34 pm - 6:45 am
BUF
-
LHR
11h 11m
1 stop
Delta Logo
8:40 am - 7:15 pm
LHR
-
BUF
15h 35m
2 stops
$744Delta
Thu, Apr 23 - Fri, May 8

Delta flights from Buffalo to London Heathrow Airport

Our best Delta deals on Buffalo to London Heathrow Airport flight tickets
Delta
May 7
BUF10:32 amBuffalo
17h 18m
1 stop
LHR8:50 amLondon Heathrow
May 14
LHR6:30 amLondon Heathrow
17h 45m
2 stops
BUF7:15 pmBuffalo
$725
Delta
Apr 23
BUF2:34 pmBuffalo
10h 46m
1 stop
LHR6:20 amLondon Heathrow
May 8
LHR6:15 amLondon Heathrow
17h 36m
2 stops
BUF6:51 pmBuffalo
$726
Delta
May 7
BUF12:04 pmBuffalo
17h 16m
2 stops
LHR10:20 amLondon Heathrow
May 15
LHR6:15 amLondon Heathrow
17h 36m
2 stops
BUF6:51 pmBuffalo
$729

KLM flights from Buffalo to London Heathrow Airport

Our best KLM deals on Buffalo to London Heathrow Airport flight tickets
KLM
May 5
BUF12:09 pmBuffalo
13h 16m
1 stop
LHR6:25 amLondon Heathrow
May 12
LHR3:50 pmLondon Heathrow
13h 29m
1 stop
BUF12:19 amBuffalo
$723
KLM
Oct 3
BUF3:50 pmBuffalo
12h 00m
1 stop
LHR8:50 amLondon Heathrow
Oct 15
LHR1:25 pmLondon Heathrow
15h 30m
1 stop
BUF11:55 pmBuffalo
$731
KLM
Apr 23
BUF12:50 pmBuffalo
13h 20m
1 stop
LHR7:10 amLondon Heathrow
May 8
LHR11:20 amLondon Heathrow
12h 55m
1 stop
BUF7:15 pmBuffalo
$732

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 April 9, 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
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 4/25

4:03 pm-7:10 am

1 stop10h 07m

London Heathrow

Fri 5/8

4:20 pm-12:19 am

1 stop12h 59m

$712

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 5/5

12:09 pm-6:25 am

1 stop13h 16m

London Heathrow

Tue 5/12

3:50 pm-12:19 am

1 stop13h 29m

$723

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 5/7

10:32 am-8:50 am

1 stop17h 18m

London Heathrow

Thu 5/14

6:30 am-7:15 pm

2 stops17h 45m

$725

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 4/23

2:34 pm-6:20 am

1 stop10h 46m

London Heathrow

Fri 5/8

6:15 am-6:51 pm

2 stops17h 36m

$726

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 5/7

12:04 pm-10:20 am

2 stops17h 16m

London Heathrow

Fri 5/15

6:15 am-6:51 pm

2 stops17h 36m

$729

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 5/8

12:04 pm-8:50 am

2 stops15h 46m

London Heathrow

Sun 5/17

11:30 am-11:59 pm

2 stops17h 29m

$730

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 4/24

7:40 pm-1:15 pm

1 stop12h 35m

London Heathrow

Fri 5/1

10:45 am-6:51 pm

1 stop13h 06m

$731

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 4/23

12:50 pm-7:10 am

1 stop13h 20m

London Heathrow

Fri 5/8

11:20 am-7:15 pm

1 stop12h 55m

$732

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 5/1

12:09 pm-6:25 am

1 stop13h 16m

London Heathrow

Sun 5/3

8:40 am-7:19 pm

2 stops15h 39m

$741

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 4/23

2:34 pm-6:45 am

1 stop11h 11m

London Heathrow

Fri 5/8

8:40 am-7:15 pm

2 stops15h 35m

$744

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 $627. 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 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 55m

Direct flights

None
The fastest flight from Buffalo to London Heathrow Airport takes 9h 55m
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 55m, 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
7.7
1,492 reviews
Search KLM flights
United AirlinesPriceFrom $451Free CancellationRating
7.4
9,554 reviews
Search United Airlines flights
American AirlinesPriceFrom $522Free CancellationRating
7.1
11,560 reviews
Search American Airlines flights
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,865 reviews
Search British Airways flights
JetBluePriceFrom $593Free CancellationRating
7.2
2,925 reviews
Search JetBlue flights
Virgin AtlanticPriceFrom $636Free CancellationRating
7.5
685 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $710Free CancellationRating
7.9
8,392 reviews
Search Delta flights

Traveling to a place near London?

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