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Cheap flights from Buffalo to London from $298

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 4/7. 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
6:25 pm - 11:05 am
BUF
-
LHR
11h 40m
1 stop
United Airlines Logo
6:50 am - 6:42 pm
LHR
-
BUF
15h 52m
2 stops
$624United Airlines
Wed, Mar 4 - Wed, Mar 11
Lufthansa Logo
7:45 pm - 6:25 pm
BUF
-
LHR
17h 40m
2 stops
Lufthansa Logo
10:50 am - 11:33 pm
LHR
-
BUF
17h 43m
2 stops
$627Lufthansa
Tue, Apr 14 - Tue, Apr 28
Lufthansa Logo
2:54 pm - 12:50 pm
BUF
-
LHR
16h 56m
2 stops
Lufthansa Logo
9:30 am - 11:56 pm
LHR
-
BUF
18h 26m
2 stops
$632Lufthansa
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
2:49 pm - 6:40 am
BUF
-
LHR
11h 51m
1 stop
United Airlines Logo
6:50 am - 8:46 pm
LHR
-
BUF
17h 56m
2 stops
$633United Airlines
Tue, Mar 10 - Mon, Mar 16
Delta Logo
7:41 pm - 8:10 pm
BUF
-
LHR
19h 29m
1 stop
Delta Logo
10:00 am - 12:14 am
LHR
-
BUF
18h 14m
2 stops
$634Delta
Fri, Mar 6 - Fri, Mar 13
United Airlines Logo
6:00 am - 9:20 pm
BUF
-
LHR
11h 20m
1 stop
United Airlines Logo
6:50 am - 11:42 pm
LHR
-
BUF
20h 52m
2 stops
$635United Airlines
Wed, Mar 18 - Wed, Mar 25
Delta Logo
1:00 pm - 9:00 am
BUF
-
LHR
16h 00m
2 stops
Delta Logo
10:00 am - 12:14 am
LHR
-
BUF
18h 14m
2 stops
$640Delta
Wed, Mar 18 - Wed, Mar 25
Lufthansa Logo
7:30 pm - 5:05 pm
BUF
-
LHR
17h 35m
2 stops
Lufthansa Logo
9:00 am - 11:50 pm
LHR
-
BUF
19h 50m
2 stops
$641Lufthansa
Mon, Mar 23 - Tue, Mar 31
United Airlines Logo
6:00 am - 9:20 pm
BUF
-
LHR
11h 20m
1 stop
United Airlines Logo
1:25 pm - 8:46 pm
LHR
-
BUF
35h 21m
2 stops
$642United Airlines
Thu, Mar 12 - Fri, Mar 20
JetBlue Logo
1:32 pm - 6:55 am
BUF
-
LHR
13h 23m
1 stop
JetBlue Logo
8:05 am - 9:04 am
LHR
-
BUF
28h 59m
1 stop
$646JetBlue
Fri, Mar 20 - Fri, Mar 27

JetBlue flights from Buffalo to London Heathrow Airport

Our best JetBlue deals on Buffalo to London Heathrow Airport flight tickets
JetBlue
Feb 7
BUF7:45 pmBuffalo
20h 00m
1 stop
LHR8:45 pmLondon Heathrow
Feb 20
LHR9:20 amLondon Heathrow
16h 56m
1 stop
BUF9:16 pmBuffalo
$640
JetBlue
Mar 20
BUF1:32 pmBuffalo
13h 23m
1 stop
LHR6:55 amLondon Heathrow
Mar 27
LHR8:05 amLondon Heathrow
28h 59m
1 stop
BUF9:04 amBuffalo
$646
JetBlue
Mar 4
BUF6:00 amBuffalo
10h 40m
1 stop
LHR9:40 pmLondon Heathrow
Mar 11
LHR12:20 pmLondon Heathrow
15h 12m
1 stop
BUF11:32 pmBuffalo
$652

United Airlines flights from Buffalo to London Heathrow Airport

Our best United Airlines deals on Buffalo to London Heathrow Airport flight tickets
United Airlines
Mar 4
BUF6:25 pmBuffalo
11h 40m
1 stop
LHR11:05 amLondon Heathrow
Mar 11
LHR6:50 amLondon Heathrow
15h 52m
2 stops
BUF6:42 pmBuffalo
$624
United Airlines
Mar 10
BUF2:49 pmBuffalo
11h 51m
1 stop
LHR6:40 amLondon Heathrow
Mar 16
LHR6:50 amLondon Heathrow
17h 56m
2 stops
BUF8:46 pmBuffalo
$633
United Airlines
Mar 18
BUF6:00 amBuffalo
11h 20m
1 stop
LHR9:20 pmLondon Heathrow
Mar 25
LHR6:50 amLondon Heathrow
20h 52m
2 stops
BUF11:42 pmBuffalo
$635

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 February 6, 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

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 3/4

6:25 pm-11:05 am

1 stop11h 40m

London Heathrow

Wed 3/11

6:50 am-6:42 pm

2 stops15h 52m

$624

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 4/14

7:45 pm-6:25 pm

2 stops17h 40m

London Heathrow

Tue 4/28

10:50 am-11:33 pm

2 stops17h 43m

$627

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 3/4

2:54 pm-12:50 pm

2 stops16h 56m

London Heathrow

Wed 3/11

9:30 am-11:56 pm

2 stops18h 26m

$632

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 3/10

2:49 pm-6:40 am

1 stop11h 51m

London Heathrow

Mon 3/16

6:50 am-8:46 pm

2 stops17h 56m

$633

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 3/6

7:41 pm-8:10 pm

1 stop19h 29m

London Heathrow

Fri 3/13

10:00 am-12:14 am

2 stops18h 14m

$634

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 3/18

6:00 am-9:20 pm

1 stop11h 20m

London Heathrow

Wed 3/25

6:50 am-11:42 pm

2 stops20h 52m

$635

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 3/18

1:00 pm-9:00 am

2 stops16h 00m

London Heathrow

Wed 3/25

10:00 am-12:14 am

2 stops18h 14m

$640

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 3/23

7:30 pm-5:05 pm

2 stops17h 35m

London Heathrow

Tue 3/31

9:00 am-11:50 pm

2 stops19h 50m

$641

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 3/12

6:00 am-9:20 pm

1 stop11h 20m

London Heathrow

Fri 3/20

1:25 pm-8:46 pm

2 stops35h 21m

$642

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Fri 3/20

1:32 pm-6:55 am

1 stop13h 23m

London Heathrow

Fri 3/27

8:05 am-9:04 am

1 stop28h 59m

$646

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 cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Buffalo, with most prices found around $610. If you’re not able to fly to London Heathrow Airport in February, then September is your next best option. Flight prices from Buffalo to London Heathrow Airport during September average around $631.

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 $774 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 $603 on momondo.

How have Buffalo to London Heathrow Airport flight prices changed over time?

As of February 2026, prices for Buffalo to London Heathrow Airport flights are approximately 13% cheaper when compared to flights at the same time last year.

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

  • 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?

  • 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
United AirlinesPriceFrom $451Free CancellationRating
7.4
9,241 reviews
Search United Airlines flights
American AirlinesPriceFrom $522Free CancellationRating
7.2
11,242 reviews
Search American Airlines flights
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,716 reviews
Search British Airways flights
JetBluePriceFrom $593Free CancellationRating
7.2
2,895 reviews
Search JetBlue flights
DeltaPriceFrom $596Free CancellationRating
7.9
8,157 reviews
Search Delta flights
Virgin AtlanticPriceFrom $636Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic 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
Slough
Guildford
Crawley
Wembley
Dartford
Stratford-upon-Avon
Hayes
Croydon
Brentwood
Harrow
Watford
Cobham
Folkestone
Romford
Stansted

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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