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$333+ Cheap flights from Buffalo (BUF) to London (LON)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LON
Jun 17 — Jun 241
Wed 6/17
Wed 6/24
1 adult, Economy
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Cheap flight deals from Buffalo to London

Cheapest flights from Buffalo to London
Explore the most affordable flight options available from Buffalo to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 18, 2026.

This United Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:55 pm
BUF
-
LHR
1 stop30h 00m
United Airlines
Wed 10/76:50 am
LHR
-
BUF
2 stops14h 57m
United Airlines
Deal found 5/18$765
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:50 pm
BUF
-
LHR
2 stops35h 10m
United Airlines
Wed 10/146:50 am
LHR
-
BUF
2 stops21h 36m
United Airlines
Deal found 5/13$769
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:59 pm
BUF
-
LHR
1 stop20h 21m
United Airlines
Mon 10/55:50 pm
LHR
-
BUF
2 stops27h 57m
United Airlines
Deal found 5/16$824
This The Travel House deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am
BUF
-
LHR
2 stops18h 05m
Air Canada
Fri 9/1110:50 am
LHR
-
BUF
2 stops17h 55m
Air Canada
Deal found 5/17$850
This Cheapflightsfares deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am
BUF
-
LHR
2 stops24h 55m
SWISS
Wed 9/96:00 am
LHR
-
BUF
2 stops20h 07m
SWISS
Deal found 5/16$851
This Cheapflightsfares deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am
BUF
-
LHR
2 stops24h 55m
SWISS
Fri 9/116:00 am
LHR
-
BUF
2 stops20h 08m
SWISS
Deal found 5/13$853
This Expedia deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:52 pm
BUF
-
LHR
1 stop12h 13m
KLM
Fri 9/1111:45 am
LHR
-
BUF
2 stops17h 11m
KLM
Deal found 5/13$857
This Expedia deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:03 pm
BUF
-
LHR
1 stop12h 47m
Multiple Airlines
Fri 9/1111:55 am
LHR
-
BUF
1 stop12h 06m
Multiple Airlines
Deal found 5/15$859
This Kiwi.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:54 pm
BUF
-
LGW
1 stop32h 06m
Multiple Airlines
Wed 10/142:00 pm
LGW
-
BUF
1 stop33h 01m
Multiple Airlines
Deal found 5/13$879
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:05 pm
BUF
-
LGW
2 stops14h 55m
Delta
Sat 8/2210:25 am
LGW
-
BUF
2 stops19h 15m
Delta
Deal found 5/17$880
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:15 pm
BUF
-
LGW
2 stops15h 45m
Delta
Mon 10/1210:25 am
LGW
-
BUF
2 stops18h 34m
Delta
Deal found 5/14$881
This The Travel House deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am
BUF
-
LGW
2 stops40h 55m
SWISS
Fri 9/119:25 am
LGW
-
BUF
2 stops40h 42m
SWISS
Deal found 5/17$891

Find flight deals from Buffalo to London

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$765
(United Airlines)

One-way from

$333
(oojo)

Popular in

June

Cheapest in

January

Average price

$824
Provider with most accurate pricing for Buffalo-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-London (LON) flights.
Search Deals
From Buffalo to London (LON)
Search Deals
One-way flight from Buffalo to London (LON)
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($128 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to London 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, Cheapflights users made 2,558,603 searches. Data last updated May 18, 2026.
Use the filters below to find and compare flights from Buffalo to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 10/31

9:55 am-6:55 am

1 stop17h 00m

London Heathrow

Sun 11/8

6:30 am-6:54 pm

2 stops17h 24m

$868

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 11/8

1:15 pm-10:15 am

1 stop16h 00m

London Heathrow

Sat 11/14

6:30 am-6:33 pm

2 stops17h 03m

$868

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/7

7:00 am-6:20 am

1 stop18h 20m

London Heathrow

Mon 10/12

6:30 am-6:58 pm

2 stops17h 28m

$868

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 8/15

3:54 pm-7:10 am

1 stop10h 16m

London Heathrow

Sat 8/29

6:30 am-7:19 pm

2 stops17h 49m

$868

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 8/27

4:13 pm-1:05 pm

2 stops15h 52m

London Heathrow

Fri 9/11

11:45 am-11:56 pm

2 stops17h 11m

$874

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/5

3:54 pm-1:15 pm

2 stops16h 21m

London Heathrow

Thu 8/20

6:30 am-7:19 pm

2 stops17h 49m

$875

BuffaloLondon

BUF - LGW

BUFLGW

Buffalo

Wed 7/22

8:05 pm-4:00 pm

2 stops14h 55m

London Gatwick

Sat 8/22

10:25 am-12:40 am

2 stops19h 15m

$880
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 8/26

12:16 pm-6:25 am

1 stop13h 09m

London Heathrow

Fri 9/11

12:50 pm-7:00 pm

1 stop11h 10m

$888

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 10/24

3:50 pm-7:15 am

1 stop10h 25m

London Heathrow

Tue 11/3

2:30 pm-11:50 pm

1 stop14h 20m

$898

BuffaloLondon

BUF - LCY

BUFLCY

Buffalo

Thu 10/8

3:50 pm-9:30 am

2 stops12h 40m

London City

Mon 10/12

10:00 am-11:59 pm

2 stops18h 59m

$899

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Buffalo to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to London in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to London

Have a flexible travel schedule? Discover the best time to fly to London from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to London

How far ahead should I book a flight from Buffalo to London?

To ensure you get the cheapest price possible for a flight from Buffalo to London, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Buffalo to London?

Currently, April is the cheapest month in which you can book a flight from Buffalo to London (average of $88). Flying from Buffalo to London in June is currently the most expensive (average of $736). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Buffalo to London?

What’s the top layover airport for flights from Buffalo to London?

Share of 1-stop round-trip flights from Buffalo to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Philadelphia (PHL) – chosen by Cheapflights users on 45% of 1-stop itineraries from Buffalo to London on Cheapflights.

What’s the cheapest layover airport for flights from Buffalo to London?

Average round-trip fare for 1-stop flights from Buffalo to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Newark (EWR) is the most affordable 1-stop option, with an average round-trip price of $617.

What’s the fastest layover option from Buffalo to London?

Shortest average travel time for 1-stop one-way flights from Buffalo to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 9h 40m.

Which airport typically offers the quickest layover for flights from Buffalo to London?

Average layover duration for 1-stop one-way flights from Buffalo to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 1h 21m.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated May 18, 2026.
Read through reviews of airlines operating flights from Buffalo to London, such as Delta,United Airlines, andVirgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,449 reviews

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work
Delta
7.9
Good
8,449 reviews
Delta
7.9
Good
8,449 reviews

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work
United Airlines
7.4
Good
9,737 reviews
Delta
7.9
Good
8,449 reviews

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work
Virgin Atlantic
7.4
Good
688 reviews
Delta
7.9
Good
8,449 reviews

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work
JetBlue
7.2
Good
2,979 reviews
Delta
7.9
Good
8,449 reviews

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work
American Airlines
7.1
Good
11,649 reviews
Delta
7.9
Good
8,449 reviews

Food

7.2

Boarding

8.1

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Barney,May 2026

JFK - ATL

Terrible flight. Late, reduced beverage service, lack of headphones, entertainment service didn't work

Related info for your journey

Find useful and relevant information for your journey from Buffalo to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Buffalo to London?

    Buffalo (BUF) is the airport you will fly out of if you book a flight from Buffalo to London. You should not have trouble finding flights to London from Buffalo; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the Buffalo airport to London. It is only a 8.3 mi journey to Buffalo (BUF) from Buffalo’s city center.

  • How long is the flight from Buffalo to London?

    Delta, SWISS, and Icelandair can get you from Buffalo to London in just under 17h. Your travel time can differ by up to 8h 55m. The distance between Buffalo and London is about 3540 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Buffalo to London round-trip?

    KLM, at $380, was found to be the cheapest airline from Buffalo to London.Alternate airlines to your destination round-trip include United Airlines and American Airlines. KLM is 50% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular routes from Buffalo to London?

    When deciding which route to take from Buffalo to London consider Buffalo - London Heathrow, Buffalo - London Gatwick or Buffalo - London Stansted as they are the most popular.

  • Can I find deals for flights from Buffalo to London that include hotel bookings?

    Yes. In addition to deals on Buffalo to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to London.

  • Can I find deals for business class flights from Buffalo to London?

    Yes. Cheapflights offers flight deals from Buffalo to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to London?

    Currently, April is the cheapest month in which you can book a flight from Buffalo to London (average of $88). Flying from Buffalo to London in June is currently the most expensive (average of $736). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Dorking
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Buffalo to London

Discover the top 7 airlines that operate flights from Buffalo to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$380Average$729FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$451Average$852FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$736FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$730FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$540Average$812FlexibilityNo cancel feeOn-time72%
JetBlueCheapest$618Average$725FlexibilityNo cancel feeOn-time62%
DeltaCheapest$710Average$890FlexibilityNo cancel feeOn-timeN/A

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