$320+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Buffalo to Heathrow
Cheapest
Best
Last-minute
One-way
Cheapest flights from Buffalo to HeathrowExplore 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 August 26, 2026.
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 August 26, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/26. 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 9/3010:46 am -
2 stops16h 09m
Tue 10/68:05 pm -
2 stops29h 42m
Deal found 8/26![SWISS logo]()
$813
This Iberia deal was found by Cheapflights users on 8/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:09 pm -
1 stop17h 41m
Tue 10/69:15 am -
2 stops17h 20m
Deal found 8/26![Iberia logo]()
$864
This Delta deal was found by Cheapflights users on 8/25. 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 12/87:00 am -
1 stop19h 15m
Tue 12/1511:45 am -
2 stops17h 17m
Deal found 8/25![Delta logo]()
$868
This Iberia deal was found by Cheapflights users on 8/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:24 am -
2 stops21h 11m
Tue 11/1010:45 am -
2 stops15h 50m
Deal found 8/26![Iberia logo]()
$872
This Expedia deal was found by Cheapflights users on 8/25. 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.
Sun 11/811:24 am -
1 stop16h 11m
Mon 11/167:40 pm -
2 stops31h 00m
Deal found 8/25![Iberia logo]()
$875
This Flighttix deal was found by Cheapflights users on 8/23. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:19 pm -
1 stop27h 26m
Sun 9/2711:55 am -
1 stop16h 57m
Deal found 8/23![JetBlue logo]()
$877
This Cheapflightsfares deal was found by Cheapflights users on 8/24. 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 9/237:50 pm -
1 stop19h 55m
Sun 9/2711:55 am -
1 stop16h 57m
Deal found 8/24![JetBlue logo]()
$878
This Cheapflightsfares deal was found by Cheapflights users on 8/26. 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.
Fri 11/272:10 pm -
1 stop11h 45m
Mon 12/78:05 am -
1 stop20h 54m
Deal found 8/26![JetBlue logo]()
$879
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/510:46 am -
1 stop14h 59m
Mon 10/125:55 pm -
2 stops27h 48m
Deal found 8/21![United Airlines logo]()
$880
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Fri 11/276:01 pm -
2 stops56h 09m
Tue 12/81:00 pm -
2 stops34h 01m
Deal found 8/23![United Airlines logo]()
$881
Best flights from Buffalo to HeathrowDiscover carefully curated flight deals from Buffalo to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from Buffalo to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This Delta deal was found by Cheapflights users on 8/22. 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 12/87:00 am -
1 stop19h 15m
Tue 12/1511:45 am -
2 stops17h 17m
Deal found 8/22![Delta logo]()
$868
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/177:42 pm -
1 stop32h 38m
Mon 10/266:50 am -
2 stops17h 46m
Deal found 8/25![United Airlines logo]()
$898
This JetBlue deal was found by Cheapflights users on 8/25. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/272:23 pm -
1 stop11h 07m
Sun 10/1111:55 am -
1 stop16h 58m
Deal found 8/25![JetBlue logo]()
$899
This Delta deal was found by Cheapflights users on 8/21. 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 10/133:53 pm -
2 stops16h 12m
Thu 10/2211:45 am -
2 stops17h 14m
Deal found 8/21![Delta logo]()
$872
This Delta deal was found by Cheapflights users on 8/22. 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 12/811:24 am -
1 stop13h 56m
Mon 12/146:30 am -
2 stops17h 14m
Deal found 8/22![Delta logo]()
$898
This Delta deal was found by Cheapflights users on 8/23. 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.
Fri 10/97:00 am -
1 stop18h 20m
Tue 10/206:30 am -
2 stops16h 19m
Deal found 8/23![Delta logo]()
$898
This Delta deal was found by Cheapflights users on 8/24. 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 10/2812:15 pm -
1 stop15h 30m
Sun 11/111:45 am -
2 stops17h 14m
Deal found 8/24![Delta logo]()
$899
This Delta deal was found by Cheapflights users on 8/22. 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 11/113:55 pm -
2 stops14h 45m
Sun 11/156:30 am -
2 stops17h 10m
Deal found 8/22![Delta logo]()
$903
This Delta deal was found by Cheapflights users on 8/24. 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 10/77:43 pm -
2 stops13h 07m
Tue 10/138:40 am -
2 stops15h 16m
Deal found 8/24![Delta logo]()
$907
This Delta deal was found by Cheapflights users on 8/21. 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.
Sun 9/207:55 pm -
2 stops12h 50m
Sun 9/2711:30 am -
2 stops17h 42m
Deal found 8/21![Delta logo]()
$910
This Delta deal was found by Cheapflights users on 8/25. 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 12/212:06 pm -
2 stops15h 54m
Sun 12/611:45 am -
2 stops17h 17m
Deal found 8/25![Delta logo]()
$923
Last-minute flights from Buffalo to HeathrowDiscover last-minute flight deals from Buffalo to Heathrow. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Heathrow. Data last updated August 26, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 8/25. 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.
Tue 9/810:30 am -
2 stops26h 20m
Fri 9/186:00 am -
2 stops20h 07m
Deal found 8/25![SWISS logo]()
$868
This Cheapflightsfares deal was found by Cheapflights users on 8/25. 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.
Tue 9/86:55 am -
1 stop21h 35m
Fri 9/188:15 am -
1 stop11h 28m
Deal found 8/25![JetBlue logo]()
$884
This Flighttix deal was found by Cheapflights users on 8/23. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:19 pm -
1 stop27h 26m
Sun 9/2711:55 am -
1 stop16h 57m
Deal found 8/23![JetBlue logo]()
$877
This Orbitz deal was found by Cheapflights users on 8/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:55 pm -
2 stops17h 00m
Mon 9/288:15 am -
1 stop15h 43m
Deal found 8/24![Multiple Airlines logo]()
$896
This Cheapflightsfares deal was found by Cheapflights users on 8/24. 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 9/237:50 pm -
1 stop19h 55m
Sun 9/2711:55 am -
1 stop16h 57m
Deal found 8/24![JetBlue logo]()
$878
This Cheapflightsfares deal was found by Cheapflights users on 8/25. 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.
Fri 9/257:50 pm -
1 stop19h 55m
Wed 9/308:40 am -
1 stop15h 53m
Deal found 8/25![JetBlue logo]()
$879
This Cheapflightsfares deal was found by Cheapflights users on 8/26. 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 9/3010:46 am -
2 stops16h 09m
Tue 10/68:05 pm -
2 stops29h 42m
Deal found 8/26![SWISS logo]()
$813
This Iberia deal was found by Cheapflights users on 8/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:09 pm -
1 stop17h 41m
Tue 10/69:15 am -
2 stops17h 20m
Deal found 8/26![Iberia logo]()
$864
This Air France deal was found by Cheapflights users on 8/23. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:53 pm -
1 stop10h 17m
Tue 10/611:45 am -
1 stop12h 11m
Deal found 8/23![Air France logo]()
$897
One-way flights from Buffalo to HeathrowSearch for one-way flight options from Buffalo to Heathrow. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
Search for one-way flight options from Buffalo to Heathrow. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/25. 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.
Mon 9/217:50 pm -
1 stop19h 55m
Deal found 8/25![JetBlue logo]()
$320
This American Airlines deal was found by Cheapflights users on 8/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:53 am -
2 stops13h 32m
Deal found 8/23![American Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 8/26. 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 11/2410:35 am -
2 stops17h 35m
Deal found 8/26![United Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 8/25. 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.
Mon 9/213:53 pm -
2 stops16h 22m
Deal found 8/25![Delta logo]()
$329
This FlightHub deal was found by Cheapflights users on 8/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:50 pm -
1 stop19h 55m
Deal found 8/21![JetBlue logo]()
$330
This Delta deal was found by Cheapflights users on 8/24. 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 10/157:50 pm -
2 stops12h 55m
Deal found 8/24![Delta logo]()
$335
This FlightHub deal was found by Cheapflights users on 8/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:52 pm -
1 stop12h 38m
Deal found 8/26![JetBlue logo]()
$339
This Expedia deal was found by Cheapflights users on 8/25. 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 12/163:20 pm -
1 stop10h 55m
Deal found 8/25![Virgin Atlantic logo]()
$357
This Delta deal was found by Cheapflights users on 8/25. 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 12/1612:06 pm -
2 stops14h 09m
Deal found 8/25![Delta logo]()
$359
This CheapOair deal was found by Cheapflights users on 8/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:35 am -
1 stop28h 10m
Deal found 8/24![JetBlue logo]()
$371
This FlightHub deal was found by Cheapflights users on 8/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:50 pm -
1 stop19h 55m
Deal found 8/23![JetBlue logo]()
$396
This FlightHub deal was found by Cheapflights users on 8/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:50 pm -
1 stop19h 55m
Deal found 8/21![JetBlue logo]()
$397
Find 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 August 26, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $813 (Cheapflightsfares) |
One-way from | $320 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $1,076 |
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 7,457,451 searches. Data last updated August 26, 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
Cheapest round-trip
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Tue 12/8
7:00 am-7:15 am
1 stop19h 15m
London Heathrow
Tue 12/15
11:45 am-12:02 am
2 stops17h 17m
$868
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Tue 10/13
3:53 pm-1:05 pm
2 stops16h 12m
London Heathrow
Thu 10/22
11:45 am-11:59 pm
2 stops17h 14m
$872
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Sat 10/17
7:42 pm-9:20 am
1 stop32h 38m
London Heathrow
Mon 10/26
6:50 am-8:36 pm
2 stops17h 46m
$898
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Tue 12/8
11:24 am-6:20 am
1 stop13h 56m
London Heathrow
Mon 12/14
6:30 am-6:44 pm
2 stops17h 14m
$898
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Fri 10/9
7:00 am-6:20 am
1 stop18h 20m
London Heathrow
Tue 10/20
6:30 am-5:49 pm
2 stops16h 19m
$898
Quickest round-trip
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Sun 9/27
2:23 pm-6:30 am
1 stop11h 07m
London Heathrow
Sun 10/11
11:55 am-11:53 pm
1 stop16h 58m
$899
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Wed 10/28
12:15 pm-7:45 am
1 stop15h 30m
London Heathrow
Sun 11/1
11:45 am-11:59 pm
2 stops17h 14m
$899
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Wed 11/11
3:55 pm-11:40 am
2 stops14h 45m
London Heathrow
Sun 11/15
6:30 am-6:40 pm
2 stops17h 10m
$903
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Wed 10/7
7:43 pm-1:50 pm
2 stops13h 07m
London Heathrow
Tue 10/13
8:40 am-6:56 pm
2 stops15h 16m
$907
BuffaloLondon
BUF Buffalo - LHR London Heathrow
BUFLHR
Buffalo
Sun 9/20
7:55 pm-1:45 pm
2 stops12h 50m
London Heathrow
Sun 9/27
11:30 am-12:12 am
2 stops17h 42m
$910
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Buffalo to Heathrow
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 Heathrow in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Buffalo-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Buffalo-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago 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 Heathrow Airport 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 Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Buffalo with our price prediction graph.
BUF-LHR
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
What is the cheapest month to book a flight from Buffalo to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $658). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $1,328). 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 Heathrow Airport?
Airfare is typical for this route at the moment.
Buffalo to London Heathrow Airport flights typically cost between $776 and $1,032 in September.The cheapest round-trip price found within the last 5 days was $813 on SWISS (Sep 30-Oct 6).
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 August 26, 2026.
See what other customers who have flown with KLM,Delta, andUnited 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.
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Food
7.3
Overall
7.8
Boarding
7.8
Comfort
7.7
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
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Top 5 airlines flying from Buffalo to Heathrow
Discover the top 5 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 7,457,451 searches. Data last updated August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$380 | Average$729 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$472 | Average$1,129 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$490 | Average$944 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$640 | Average$890 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$732 | Average$932 | FlexibilityNo cancel fee | On-timeN/A |