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Heathrow

$299+ Cheap flights from Buffalo (BUF) to Heathrow (LHR)

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to London Heathrow are usually found in September or October, booked 11 days in advance, depart on a Sunday or Monday and return on a Monday

Cheap flight deals from Buffalo to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Heathrow (LHR). 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 September 16, 2025.

Round-trip from

$524
(Delta)

One-way from

$299
(CheapOair)

Popular in

June

Cheapest in

September

Average price

$632
From Buffalo to London Heathrow
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One-way flight from Buffalo to London Heathrow
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Highest demand for flights based on searches. 14% potential increase in price ($124 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Buffalo to Heathrow

Cheapest flights from Buffalo to Heathrow
Explore the most affordable flight options available from Buffalo to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:07 amBUF - LHR
2 stops18h 23mAir Canada
Wed 10/229:30 amLHR - BUF
2 stops16h 43mAir Canada
Deal found 9/16$523
This Delta deal was found by Cheapflights users on 9/14. 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.
Wed 10/17:59 pmBUF - LHR
1 stop10h 26mDelta
Wed 10/811:30 amLHR - BUF
2 stops17h 26mDelta
Deal found 9/14$524
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:15 amBUF - LHR
1 stop16h 35mDelta
Tue 10/219:55 amLHR - BUF
2 stops14h 20mDelta
Deal found 9/15$525
This KLM deal was found by Cheapflights users on 9/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:55 pmBUF - LHR
1 stop10h 05mMultiple Airlines
Fri 10/174:05 pmLHR - BUF
1 stop12h 51mMultiple Airlines
Deal found 9/14$532
This World Air Fares deal was found by Cheapflights users on 9/15. 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 World Air Fares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:52 pmBUF - LHR
1 stop12h 03mLufthansa
Thu 11/64:00 pmLHR - BUF
1 stop11h 58mLufthansa
Deal found 9/15$533
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 10/73:56 pmBUF - LHR
2 stops16h 14mDelta
Fri 10/173:45 pmLHR - BUF
1 stop13h 11mDelta
Deal found 9/14$536
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:55 pmBUF - LHR
1 stop32h 20mVirgin Atlantic
Mon 10/278:00 pmLHR - BUF
1 stop18h 31mVirgin Atlantic
Deal found 9/16$541
This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:55 pmBUF - LHR
1 stop10h 05mMultiple Airlines
Mon 11/37:20 pmLHR - BUF
2 stops24h 50mMultiple Airlines
Deal found 9/16$543
This Netflights deal was found by Cheapflights users on 9/16. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:55 pmBUF - LHR
1 stop10h 05mVirgin Atlantic
Mon 11/34:35 pmLHR - BUF
1 stop12h 21mVirgin Atlantic
Deal found 9/16$549
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2310:55 amBUF - LHR
2 stops14h 35mUnited Airlines
Sun 9/2812:40 pmLHR - BUF
2 stops38h 02mUnited Airlines
Deal found 9/14$559
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/222:50 pmBUF - LHR
2 stops14h 20mUnited Airlines
Sun 9/2812:40 pmLHR - BUF
2 stops38h 02mUnited Airlines
Deal found 9/14$564
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:52 pmBUF - LHR
1 stop12h 03mUnited Airlines
Thu 11/66:35 amLHR - BUF
2 stops21h 23mUnited Airlines
Deal found 9/15$567

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Heathrow 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 September 16, 2025.
Use the filters below to find and compare flights from Buffalo to London Heathrow Airport that are best for you.

Fly from

Buffalo

Fly to

Heathrow

Route

Depart

Return

Price

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/1

7:59 pm-11:25 am

1 stop10h 26m

London Heathrow

Wed 10/8

11:30 am-11:56 pm

2 stops17h 26m

$524

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 10/7

7:55 pm-11:00 am

1 stop10h 05m

London Heathrow

Fri 10/17

4:05 pm-11:56 pm

1 stop12h 51m

$532

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 10/1

3:51 pm-8:50 am

1 stop11h 59m

London Heathrow

Wed 10/8

10:55 am-6:55 pm

1 stop13h 00m

$532

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 10/7

7:30 pm-1:30 pm

1 stop13h 00m

London Heathrow

Tue 10/14

4:05 pm-11:56 pm

1 stop12h 51m

$532

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 10/14

7:55 pm-11:00 am

1 stop10h 05m

London Heathrow

Tue 10/28

10:10 am-7:10 pm

1 stop13h 00m

$532

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 10/7

3:56 pm-1:10 pm

2 stops16h 14m

London Heathrow

Fri 10/17

3:45 pm-11:56 pm

1 stop13h 11m

$536

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 10/30

1:52 pm-5:55 am

1 stop12h 03m

London Heathrow

Thu 11/6

6:35 am-10:58 pm

2 stops21h 23m

$567

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 10/16

5:55 pm-11:45 am

1 stop12h 50m

London Heathrow

Thu 10/23

6:50 am-4:53 pm

2 stops15h 03m

$571

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 10/21

10:55 am-5:55 am

2 stops14h 00m

London Heathrow

Mon 11/3

11:10 am-10:58 pm

2 stops16h 48m

$572

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 10/16

7:30 pm-1:30 pm

1 stop13h 00m

London Heathrow

Thu 10/23

11:45 am-6:50 pm

1 stop12h 05m

$582

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results
1
2

Best time to book a flight from Buffalo to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Heathrow. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to London Heathrow Airport, you should look to book at least 11 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 Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $661). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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.

What is the cheapest time of day to fly from BUF to LHR?

Find hourly flight availability from Buffalo to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 9% on flights from Buffalo to London Heathrow Airport by exploring options for tickets at noon.

What is the cheapest day to fly from Buffalo to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Buffalo to London Heathrow Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated September 16, 2025.
See what other customers who have flown with Delta, Virgin Atlantic, and American Airlines from Buffalo to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
664 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.2
Good
2,914 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.7
Okay
7,363 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Heathrow. 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 Heathrow?

    For a flight from Buffalo to London Heathrow, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 0 outbound flights to London Heathrow per day. 6 airlines have flights to London Heathrow from Buffalo on a regular basis.

  • How long is the flight from Buffalo to London Heathrow Airport?

    Departing from Buffalo to London Heathrow Airport will take you 10h 26m. The distance from Buffalo to London Heathrow Airport is about 3540 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Buffalo to London Heathrow Airport round-trip from $414. Other airlines that can offer you cheap pricing are United Airlines, from $451, and American Airlines, from $522. Users have found that JetBlue is 45% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Heathrow 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 Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $661). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Buffalo to Heathrow

Discover the top 6 airlines that operate flights from Buffalo to Heathrow. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$414Average$692FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$451Average$793FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$779FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$725FlexibilityNo cancel feeOn-time70%
DeltaCheapest$596Average$785FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$635Average$698FlexibilityNo cancel feeOn-time72%

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