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Cheap flights from Buffalo to London from $220

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 4/22. 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.
British Airways Logo
5:16 pm - 10:25 am
BUF
-
LHR
12h 09m
1 stop
British Airways Logo
6:05 am - 10:49 pm
LHR
-
BUF
21h 44m
2 stops
$578British Airways
Wed, Feb 4 - Tue, Feb 24
British Airways Logo
5:16 pm - 10:25 am
BUF
-
LHR
12h 09m
1 stop
British Airways Logo
8:25 am - 10:49 pm
LHR
-
BUF
19h 24m
2 stops
$579British Airways
Wed, Feb 4 - Tue, Feb 24
Iberia Logo
12:31 pm - 10:25 am
BUF
-
LHR
16h 54m
1 stop
Iberia Logo
6:15 am - 11:40 pm
LHR
-
BUF
21h 25m
2 stops
$583Iberia
Wed, Mar 4 - Wed, Mar 11
British Airways Logo
12:31 pm - 8:15 am
BUF
-
LHR
14h 44m
1 stop
British Airways Logo
4:30 pm - 10:45 pm
LHR
-
BUF
34h 15m
2 stops
$590British Airways
Mon, Mar 2 - Mon, Mar 9
British Airways Logo
2:59 pm - 6:50 am
BUF
-
LHR
10h 51m
1 stop
British Airways Logo
6:15 am - 11:49 pm
LHR
-
BUF
22h 34m
2 stops
$594British Airways
Tue, Apr 14 - Tue, Apr 21
British Airways Logo
4:25 pm - 8:45 pm
BUF
-
LHR
23h 20m
2 stops
British Airways Logo
4:30 pm - 10:45 pm
LHR
-
BUF
34h 15m
2 stops
$597British Airways
Mon, Mar 2 - Mon, Mar 9
British Airways Logo
3:55 pm - 1:35 pm
BUF
-
LHR
16h 40m
2 stops
British Airways Logo
6:15 am - 11:49 pm
LHR
-
BUF
22h 34m
2 stops
$601British Airways
Tue, Apr 14 - Tue, Apr 21
British Airways Logo
4:01 pm - 7:50 am
BUF
-
LHR
10h 49m
1 stop
British Airways Logo
10:15 am - 10:55 pm
LHR
-
BUF
17h 40m
1 stop
$604British Airways
Mon, Feb 2 - Wed, Feb 11
British Airways Logo
4:01 pm - 7:50 am
BUF
-
LHR
10h 49m
1 stop
British Airways Logo
11:00 am - 11:48 pm
LHR
-
BUF
17h 48m
1 stop
$605British Airways
Mon, Feb 2 - Tue, Feb 10
British Airways Logo
4:01 pm - 7:50 am
BUF
-
LHR
10h 49m
1 stop
British Airways Logo
10:15 am - 10:49 pm
LHR
-
BUF
17h 34m
1 stop
$606British Airways
Wed, Feb 4 - Tue, Feb 24

British Airways flights from Buffalo to London Heathrow Airport

Our best British Airways deals on Buffalo to London Heathrow Airport flight tickets
British Airways
Feb 4
BUF5:16 pmBuffalo
12h 09m
1 stop
LHR10:25 amLondon Heathrow
Feb 24
LHR6:05 amLondon Heathrow
21h 44m
2 stops
BUF10:49 pmBuffalo
$578
British Airways
Feb 4
BUF5:16 pmBuffalo
12h 09m
1 stop
LHR10:25 amLondon Heathrow
Feb 24
LHR8:25 amLondon Heathrow
19h 24m
2 stops
BUF10:49 pmBuffalo
$579
British Airways
Mar 2
BUF12:31 pmBuffalo
14h 44m
1 stop
LHR8:15 amLondon Heathrow
Mar 9
LHR4:30 pmLondon Heathrow
34h 15m
2 stops
BUF10:45 pmBuffalo
$590

American Airlines flights from Buffalo to London Heathrow Airport

Our best American Airlines deals on Buffalo to London Heathrow Airport flight tickets
American Airlines
Mar 18
BUF1:32 pmBuffalo
13h 48m
1 stop
LHR7:20 amLondon Heathrow
Mar 25
LHR11:40 amLondon Heathrow
12h 49m
1 stop
BUF8:29 pmBuffalo
$607
American Airlines
Feb 16
BUF7:41 pmBuffalo
11h 19m
1 stop
LHR12:00 pmLondon Heathrow
Feb 23
LHR12:35 pmLondon Heathrow
16h 05m
1 stop
BUF11:40 pmBuffalo
$633

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 January 18, 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 2/4

5:16 pm-10:25 am

1 stop12h 09m

London Heathrow

Tue 2/24

6:05 am-10:49 pm

2 stops21h 44m

$578

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 2/4

5:16 pm-10:25 am

1 stop12h 09m

London Heathrow

Tue 2/24

8:25 am-10:49 pm

2 stops19h 24m

$579

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 3/4

12:31 pm-10:25 am

1 stop16h 54m

London Heathrow

Wed 3/11

6:15 am-11:40 pm

2 stops21h 25m

$583

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 3/2

12:31 pm-8:15 am

1 stop14h 44m

London Heathrow

Mon 3/9

4:30 pm-10:45 pm

2 stops34h 15m

$590

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 4/14

2:59 pm-6:50 am

1 stop10h 51m

London Heathrow

Tue 4/21

6:15 am-11:49 pm

2 stops22h 34m

$594

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 3/2

4:25 pm-8:45 pm

2 stops23h 20m

London Heathrow

Mon 3/9

4:30 pm-10:45 pm

2 stops34h 15m

$597

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 4/14

3:55 pm-1:35 pm

2 stops16h 40m

London Heathrow

Tue 4/21

6:15 am-11:49 pm

2 stops22h 34m

$601

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 2/2

4:01 pm-7:50 am

1 stop10h 49m

London Heathrow

Wed 2/11

10:15 am-10:55 pm

1 stop17h 40m

$604

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 2/2

4:01 pm-7:50 am

1 stop10h 49m

London Heathrow

Tue 2/10

11:00 am-11:48 pm

1 stop17h 48m

$605

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 2/4

4:01 pm-7:50 am

1 stop10h 49m

London Heathrow

Tue 2/24

10:15 am-10:49 pm

1 stop17h 34m

$606

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 $603. 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 $777 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 $615 on momondo.

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

As of January 2026, prices for Buffalo to London Heathrow Airport flights are approximately 21% more expensive 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

10h 40m

Direct flights

None
The fastest flight from Buffalo to London Heathrow Airport takes 10h 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 10h 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
9,176 reviews
Search United Airlines flights
American AirlinesPriceFrom $522Free CancellationRating
7.2
11,160 reviews
Search American Airlines flights
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,689 reviews
Search British Airways flights
JetBluePriceFrom $593Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
DeltaPriceFrom $596Free CancellationRating
7.9
8,075 reviews
Search Delta flights
Virgin AtlanticPriceFrom $626Free 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
Luton
Milton Keynes
Dover
Slough
Guildford
Crawley
Dartford
Hayes
Stratford-upon-Avon
Wembley
Brentwood
Salisbury
Watford
Cobham
Folkestone
Romford
Harrow
Croydon

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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