BUF - LHR

$324 Find Cheap Flights from Buffalo to London Heathrow Airport - Compare and Save

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 7/30. 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.
1 adult
1 adult, Economy, 0 bags

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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Everything you should know

Cheapest round-trip
$822
Typical prices: $471-$984
JetBlue
Sat 8/22Tue 8/25
BUF - LHR • 1 stop
Cheapest one-way
$324
JetBlue
Thu 7/30
BUF - LHR • 1 stop
Top airlines
Cheapest • from $822 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Buffalo and Heathrow. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $625 (round-trip)
Shortest trip • 10h 00m (one-way)
Insights
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Heathrow

Sat, Aug 22 - Tue, Aug 25
JetBlue Logo
9:22 pm - 6:30 am
BUF
-
LHR
28h 08m
1 stop
JetBlue Logo
8:15 am - 2:57 pm
LHR
-
BUF
11h 42m
1 stop
$822JetBlue
Wed, Sep 2 - Fri, Sep 4
JetBlue Logo
10:25 am - 6:30 am
BUF
-
LHR
15h 05m
1 stop
JetBlue Logo
8:40 am - 7:24 pm
LHR
-
BUF
15h 44m
1 stop
$823JetBlue
Tue, Sep 15 - Tue, Sep 29
JetBlue Logo
6:00 am - 8:45 pm
BUF
-
LHR
9h 45m
1 stop
JetBlue Logo
8:40 am - 8:24 pm
LHR
-
BUF
16h 44m
1 stop
$840JetBlue
Sat, Aug 22 - Sat, Aug 29
JetBlue Logo
10:25 am - 6:30 am
BUF
-
LHR
15h 05m
1 stop
JetBlue Logo
8:15 am - 7:03 pm
LHR
-
BUF
15h 48m
1 stop
$856JetBlue
Fri, Jul 3 - Mon, Jul 6
JetBlue Logo
1:31 pm - 6:30 am
BUF
-
LHR
11h 59m
1 stop
JetBlue Logo
8:40 am - 7:13 pm
LHR
-
BUF
15h 33m
1 stop
$858JetBlue
Thu, Aug 27 - Fri, Sep 4
JetBlue Logo
6:35 am - 8:45 pm
BUF
-
LHR
9h 10m
1 stop
JetBlue Logo
8:15 am - 2:36 pm
LHR
-
BUF
11h 21m
1 stop
$863JetBlue
Thu, Jul 2 - Sun, Jul 12
JetBlue Logo
3:50 pm - 8:45 pm
BUF
-
LHR
23h 55m
1 stop
JetBlue Logo
8:40 am - 11:43 pm
LHR
-
BUF
20h 03m
1 stop
$868JetBlue
Tue, Sep 15 - Tue, Sep 29
Iberia Logo
6:56 pm - 12:15 pm
BUF
-
LHR
12h 19m
1 stop
Iberia Logo
7:50 am - 10:10 pm
LHR
-
BUF
19h 20m
2 stops
$871Iberia
Tue, Sep 15 - Tue, Sep 29
Iberia Logo
12:09 pm - 10:35 am
BUF
-
LHR
17h 26m
2 stops
Iberia Logo
6:15 am - 10:10 pm
LHR
-
BUF
20h 55m
2 stops
$880Iberia
Wed, Aug 26 - Wed, Sep 9
SWISS Logo
10:30 am - 1:00 pm
BUF
-
LHR
21h 30m
2 stops
SWISS Logo
6:00 am - 9:07 pm
LHR
-
BUF
20h 07m
2 stops
$883SWISS
Booking Insights

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.

How much is a round-trip flight from Buffalo to London Heathrow Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Buffalo to London Heathrow Airport departing in August.

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 September, where tickets cost $632 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,178 and $992 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, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$324
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 22% 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 5 days, the lowest price for a flight from Buffalo to London Heathrow Airport was $324 for a one-way ticket and $822 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?

    Star Alliance, SkyTeam, 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 KLM?

    The two airlines most popular with KAYAK users for flights from Buffalo to London are Delta and KLM. With an average price for the route of $932 and an overall rating of 7.8, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $729 and an overall rating of 7.8.

  • 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.

Reviews of the 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.
7.8
DeltaOverall score based on 8410 reviews
7.8Entertainment
8.1Boarding
7.8Comfort
8.5Crew
7.2Food
Airline reviews

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

6.0 GoodSarah, Jun 2026
LGA - MYR
Read more Delta reviews

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Transparency from pilots, quick boarding and exiting the plane, staff greeted to each and everyone,

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Luggage did not make it onto my plane. Business seats were economy with empty row seat. Just horrible experience. Why would the company allow for transfers that don’t give employees enough time to transfer luggages??

For an long range economy flight I feel more space and more meal options need to be offered for flights over 5 hours

The check in agents in PHL and gate agents had to have been the rudest women that I have ever encountered; the agent weighing the bags at check in screamed continuously at all of the guests as did the woman at the gate.I have Executive Platinum status with AA and fly a lot with AA but these ladies were the absolute worst I had the displeasure to encounter!

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

It's a long flight and that is always difficult. I was comfortable and well. The movies available were great and the crew was good.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

The business class layout of chairs was weired. You are sitting directly across stranger.,

First the flt was delayed over 2 hrs bc of plane mechanics that should have been handled better! No text or email was sent so only found out at the airport so there we sat for 5 hours! THATS RIDICULOUS! The gate area was filthy! No agents showed up till hr before so no additional info was given-waited online for 15 mins while the gate agent chatted and got together then given last seat in back of plane!! No priority for senior or anything-took attendants over 2hrs to serve drinks and snack-WHY are they not served together? By time snack came needed another drink! Worst service in my life!

Since we started at syr the service, crews, and flights were just excellent

All the TV screens in my rows was non functional . The map shown for an international route was antiqued..

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

JetBlue was good. Kayak offered us a deal if we bundled the rental car. This was a complete scam. Kayak said the total was $222... but when we went to pick up the car the agent at Rent a wreck said that we had to pay "fees and taxes" for a grand total of $750. I would recommend not using kayak or rent a wreck. They are both complicit in this scam. JetBlue worked out well.

TV was broken and could not shut it off. The flicking was bother me and gave me a headache. The WiFi wouldn’t work correctly, I was able to text but not search the web or surf social media. The plane itself had a lot of wear and tear it is due for an update.

The space between seat rows seemed to be larger than other airlines. I didn’t check their food or entertainment since I slept most of the way. They do seem to have a lot of options for purchase though.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

Excellent price. Everything on time. two bad parts. Kayak said I couldn't sign in for the flight online, but I got an email at the same time from Jet Blue and they let me sign in online. Second bad part was that, although I had provided my known traveler number, neither of my boarding passes, for this flight and the previous one, had TSA pre-check showing.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

Flight was good but temp in the cabin was cold.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Everything you need to know for your flight from Buffalo to Heathrow

Information on your arrival and departure airports