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Cheap flights from Buffalo to London from $319

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 7/20. 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.
United Airlines Logo
7:55 pm - 6:55 am
BUF
-
LHR
30h 00m
1 stop
United Airlines Logo
6:50 am - 4:47 pm
LHR
-
BUF
14h 57m
2 stops
$765United Airlines
Sun, Oct 4 - Wed, Oct 7
United Airlines Logo
10:50 am - 10:00 am
BUF
-
LHR
42h 10m
2 stops
United Airlines Logo
6:50 am - 4:47 pm
LHR
-
BUF
14h 57m
2 stops
$768United Airlines
Sun, Oct 4 - Wed, Oct 7
United Airlines Logo
7:59 pm - 9:20 pm
BUF
-
LHR
20h 21m
1 stop
United Airlines Logo
5:50 pm - 4:47 pm
LHR
-
BUF
27h 57m
2 stops
$824United Airlines
Sat, Oct 3 - Mon, Oct 5
Air Canada Logo
7:00 am - 6:35 am
BUF
-
LHR
18h 35m
2 stops
Air Canada Logo
6:00 am - 9:07 pm
LHR
-
BUF
20h 07m
2 stops
$846Air Canada
Wed, Aug 26 - Fri, Sep 11
SWISS Logo
10:30 am - 4:25 pm
BUF
-
LHR
24h 55m
2 stops
SWISS Logo
6:00 am - 9:07 pm
LHR
-
BUF
20h 07m
2 stops
$849SWISS
Wed, Aug 26 - Fri, Sep 11
Multiple Airlines Logo
5:58 pm - 6:30 am
BUF
-
LHR
31h 32m
2 stops
Multiple Airlines Logo
8:40 am - 7:24 pm
LHR
-
BUF
15h 44m
1 stop
$850Multiple Airlines
Sat, Aug 22 - Wed, Aug 26
Multiple Airlines Logo
10:06 am - 9:05 am
BUF
-
LHR
17h 59m
1 stop
Multiple Airlines Logo
8:15 am - 2:26 pm
LHR
-
BUF
11h 11m
1 stop
$851Multiple Airlines
Wed, Aug 26 - Fri, Sep 11
Air Canada Logo
10:30 am - 11:50 am
BUF
-
LHR
20h 20m
2 stops
Air Canada Logo
6:00 am - 9:07 pm
LHR
-
BUF
20h 07m
2 stops
$852Air Canada
Wed, Aug 26 - Fri, Sep 11
Multiple Airlines Logo
5:49 pm - 6:50 am
BUF
-
LHR
32h 01m
1 stop
Multiple Airlines Logo
8:40 am - 7:24 pm
LHR
-
BUF
15h 44m
1 stop
$854Multiple Airlines
Sat, Aug 22 - Wed, Aug 26
Air France Logo
4:13 pm - 11:20 am
BUF
-
LHR
14h 07m
1 stop
Air France Logo
11:30 am - 11:03 pm
LHR
-
BUF
16h 33m
2 stops
$857Air France
Wed, Aug 26 - Fri, Sep 11

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
LHR9:15 amLondon Heathrow
14h 52m
1 stop
BUF7:07 pmBuffalo
$889
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
$892
British Airways
Aug 15
BUF5:49 pmBuffalo
11h 41m
1 stop
LHR10:30 amLondon Heathrow
Aug 29
LHR12:30 pmLondon Heathrow
11h 37m
1 stop
BUF7:07 pmBuffalo
$893

Virgin Atlantic flights from Buffalo to London Heathrow Airport

Our best Virgin Atlantic deals on Buffalo to London Heathrow Airport flight tickets
Virgin Atlantic
Aug 2
BUF7:00 amBuffalo
18h 45m
1 stop
LHR6:45 amLondon Heathrow
Aug 15
LHR11:30 amLondon Heathrow
16h 39m
2 stops
BUF11:09 pmBuffalo
$954
Virgin Atlantic
Jul 3
BUF7:30 pmBuffalo
12h 35m
1 stop
LHR1:05 pmLondon Heathrow
Jul 7
LHR8:05 pmLondon Heathrow
18h 36m
1 stop
BUF9:41 amBuffalo
$1,012

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 20, 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

Sun 10/4

7:55 pm-6:55 am

1 stop30h 00m

London Heathrow

Wed 10/7

6:50 am-4:47 pm

2 stops14h 57m

$765

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 10/4

10:50 am-10:00 am

2 stops42h 10m

London Heathrow

Wed 10/7

6:50 am-4:47 pm

2 stops14h 57m

$768

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 10/3

7:59 pm-9:20 pm

1 stop20h 21m

London Heathrow

Mon 10/5

5:50 pm-4:47 pm

2 stops27h 57m

$824

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

7:00 am-6:35 am

2 stops18h 35m

London Heathrow

Fri 9/11

6:00 am-9:07 pm

2 stops20h 07m

$846

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

10:30 am-4:25 pm

2 stops24h 55m

London Heathrow

Fri 9/11

6:00 am-9:07 pm

2 stops20h 07m

$849

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 8/22

5:58 pm-6:30 am

2 stops31h 32m

London Heathrow

Wed 8/26

8:40 am-7:24 pm

1 stop15h 44m

$850
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

10:06 am-9:05 am

1 stop17h 59m

London Heathrow

Fri 9/11

8:15 am-2:26 pm

1 stop11h 11m

$851

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

10:30 am-11:50 am

2 stops20h 20m

London Heathrow

Fri 9/11

6:00 am-9:07 pm

2 stops20h 07m

$852

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 8/22

5:49 pm-6:50 am

1 stop32h 01m

London Heathrow

Wed 8/26

8:40 am-7:24 pm

1 stop15h 44m

$854

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

4:13 pm-11:20 am

1 stop14h 07m

London Heathrow

Fri 9/11

11:30 am-11:03 pm

2 stops16h 33m

$857

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 $787 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

11h 02m

Direct flights

None
The fastest flight from Buffalo to London Heathrow Airport takes 11h 02m
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 11h 02m, 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
1,517 reviews
Search KLM flights
United AirlinesPriceFrom $451Free CancellationRating
7.4
9,733 reviews
Search United Airlines flights
American AirlinesPriceFrom $522Free CancellationRating
7.1
11,646 reviews
Search American Airlines flights
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,986 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $540Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
JetBluePriceFrom $618Free CancellationRating
7.2
2,984 reviews
Search JetBlue flights
DeltaPriceFrom $710Free CancellationRating
7.9
8,452 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
Crawley
Wembley
Stratford-upon-Avon
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Ilford
Cobham
Folkestone
Uxbridge

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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