BUF - LHR

$393 Find Cheap Flights from Buffalo to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Heathrow departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to London.
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Flights Deals

Cheap Flight Deals from Buffalo to Heathrow (BUF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Buffalo to Heathrow

KAYAK's recommended round-trip deals from the most popular airlines that fly from Buffalo to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
JetBlue Logo
6:00 am - 8:45 pmBUF-LHR
9h 45m1 stop
JetBlue Logo
8:15 am - 3:00 pmLHR-BUF
11h 45m1 stop
$599JetBlue
Find Deal
Mon, Sep 29 - Tue, Oct 21
Delta Logo
7:15 pm - 10:15 amBUF-LHR
10h 00m1 stop
Delta Logo
11:20 am - 11:03 pmLHR-BUF
16h 43m2 stops
$613Delta
Find Deal
Wed, Oct 1 - Wed, Oct 22
JetBlue Logo
3:55 pm - 9:30 amBUF-LHR
12h 35m1 stop
JetBlue Logo
8:15 am - 7:21 pmLHR-BUF
16h 06m1 stop
$629JetBlue
Find Deal
Thu, Sep 25 - Wed, Oct 1
American Airlines Logo
11:40 am - 6:40 amBUF-LHR
14h 00m1 stop
American Airlines Logo
2:25 pm - 11:54 pmLHR-BUF
14h 29m1 stop
$634American Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
Delta Logo
11:40 am - 10:15 amBUF-LHR
17h 35m1 stop
Delta Logo
11:30 am - 11:03 pmLHR-BUF
16h 33m2 stops
$646Delta
Find Deal
Wed, Sep 17 - Wed, Sep 24
American Airlines Logo
1:43 pm - 9:05 amBUF-LHR
14h 22m1 stop
American Airlines Logo
12:30 pm - 10:25 pmLHR-BUF
14h 55m1 stop
$684American Airlines
Find Deal
Sun, Aug 31 - Mon, Sep 15
British Airways Logo
11:24 am - 9:10 amBUF-LHR
16h 46m1 stop
British Airways Logo
8:25 pm - 6:34 pmLHR-BUF
27h 09m2 stops
$776British Airways
Find Deal
Sun, Aug 17 - Sat, Aug 23
United Airlines Logo
10:30 am - 6:55 amBUF-LHR
15h 25m1 stop
United Airlines Logo
2:05 pm - 4:52 pmLHR-BUF
31h 47m2 stops
$815United Airlines
Find Deal
Thu, Sep 25 - Wed, Oct 1
United Airlines Logo
10:50 am - 6:30 amBUF-LHR
14h 40m2 stops
United Airlines Logo
7:25 am - 6:46 pmLHR-BUF
16h 21m2 stops
$823United Airlines
Find Deal
Tue, Aug 19 - Sun, Aug 31
British Airways Logo
4:05 pm - 10:30 amBUF-LHR
13h 25m2 stops
British Airways Logo
8:25 pm - 6:34 pmLHR-BUF
27h 09m2 stops
$853British Airways
Find Deal
Sun, Aug 17 - Sat, Aug 23
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KAYAK's insights & trends for Buffalo to Heathrow flights

Get data-powered insights and trends into flights from Buffalo to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Buffalo to London Heathrow Airport?

The average price of all round-trip flights from Buffalo to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

For Buffalo to London Heathrow Airport, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from London Heathrow Airport back to Buffalo, the best deals are generally found on Wednesday, with Thursday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buffalo to London Heathrow Airport is October, where tickets cost $636 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,265 and $933 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Buffalo to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Buffalo to London Heathrow Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonFebruary
High seasonAugust
Cheapest flight$393
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Buffalo to London Heathrow Airport

When to book flights from Buffalo to Heathrow

Are your dates flexible? Find out the best times to travel from Buffalo to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Buffalo to London Heathrow Airport flights

  • What is the cheapest flight from Buffalo to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Buffalo to London Heathrow Airport was $393 for a one-way ticket and $599 for a round-trip.

  • Do I need a passport to fly between Buffalo and London Heathrow Airport?

    Yes

  • Which airports will I be using when flying from Buffalo to London Heathrow Airport?

    Buffalo airport is called Buffalo and the only airport in London Heathrow Airport is London Heathrow.

  • Which aircraft models fly most regularly from Buffalo to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to London Heathrow Airport?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Buffalo and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Buffalo to London, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Buffalo to London are Delta and United Airlines. With an average price for the route of $774 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $800 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Buffalo to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from Buffalo to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7934 reviews
7.9Entertainment
7.9Comfort
8.2Boarding
8.5Crew
7.3Food
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Seats were really tight and the seat belts did not give enough slack.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

We were forced to wait nearly 50 additional minutes before leaving the terminal.

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

Crew was nice. Flight was timely. Seats could be better as well as the food considering it’s first class.

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

The best flight I’ve had in a while. The plane was like 25% capacity, if that. Smoothest boarding and deplaning process I’ve ever experienced. Wish all flights were this smooth.

In flight on demand didn't work at our seats. Only a single beverage/snack run.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

Over 2 hour delay for a 50-minute flight is unacceptable, especially in normal weather. Very poor communication via app

In-flight staff was very helpful and excellent. However, the flight was delayed by 90 minutes. Also the boarding process should be expedited in case of delayed flights. This will help the passengers trying to make international connections.

Kayak sent over to jet blue my account being Mike Callaghan instead of Michael. I have a jet blue account with Michael that was connected

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

British Airways staff are very polite and willing to help.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

There were several issues with this flight. I have flown quite often internationally and I was surprised by the lack of presence of attendants other than meal and drink times. The food was not best but I feel that is the norm. We also had to get off the plane once in London via stairs and bus to the terminal. Anyone who had another flight had to then get another bus to another terminal. This causes me to miss my flight and have to rebook.

The flight from Buffalo to Chicago was on an older and smaller plane. Seating was tight. Looking closely at the interior of the aircraft there were definitely signs of aging and wear.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Experience was good. Could have been better if we didn’t have to board an hour before the flight to ghana and miss relaxing time in the lounge. That process was very stressful

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