$333+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Jun 14 — Jun 211
Round-trip
1 adult, Economy
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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 May 15, 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 May 15, 2026.
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 10/117:55 pm
BUF
- LHR
1 stop30h 00m
United Airlines
Wed 10/146:50 am
LHR
- BUF
2 stops21h 36m
United Airlines
Deal found 5/13![United Airlines logo]()
$765
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:50 am
BUF
- LHR
2 stops21h 10m
SWISS
Tue 10/68:05 pm
LHR
- BUF
2 stops25h 42m
SWISS
Deal found 5/15![SWISS logo]()
$851
This Cheapflightsfares 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 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 08m
SWISS
Deal found 5/14![SWISS logo]()
$852
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![SWISS logo]()
$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![KLM logo]()
$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![Multiple Airlines logo]()
$859
This Orbitz deal was found by Cheapflights users on 5/12. 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.
Wed 10/711:46 am
BUF
- LHR
1 stop14h 54m
Iberia
Wed 10/216:15 am
LHR
- BUF
2 stops21h 55m
Iberia
Deal found 5/12![Iberia logo]()
$866
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.
Wed 8/266:00 am
BUF
- LHR
1 stop19h 25m
Delta
Wed 9/96:30 am
LHR
- BUF
2 stops17h 03m
Delta
Deal found 5/14![Delta logo]()
$869
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:19 pm
BUF
- LHR
1 stop12h 56m
Delta
Fri 9/119:55 am
LHR
- BUF
2 stops18h 08m
Delta
Deal found 5/13![Delta logo]()
$870
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 May 15, 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 May 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/10. 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 9/3010:50 am
BUF
- LHR
2 stops16h 05m
SWISS
Tue 10/68:45 am
LHR
- BUF
2 stops16h 46m
SWISS
Deal found 5/10![SWISS logo]()
$852
This Delta deal was found by Cheapflights users on 5/10. 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 9/307:35 pm
BUF
- LHR
1 stop12h 30m
Delta
Tue 10/66:30 am
LHR
- BUF
2 stops17h 24m
Delta
Deal found 5/10![Delta logo]()
$870
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:16 pm
BUF
- LHR
1 stop13h 09m
Multiple Airlines
Fri 9/1112:50 pm
LHR
- BUF
1 stop11h 10m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$888
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:15 am
BUF
- LHR
2 stops19h 15m
United Airlines
Wed 8/127:30 am
LHR
- BUF
2 stops21h 14m
United Airlines
Deal found 5/14![United Airlines logo]()
$976
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/10. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:30 pm
BUF
- LHR
3 stops22h 15m
TAP AIR PORTUGAL
Tue 10/611:20 am
LHR
- BUF
2 stops26h 04m
TAP AIR PORTUGAL
Deal found 5/10![TAP AIR PORTUGAL logo]()
$1,026
This Delta deal was found by Cheapflights users on 5/11. 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 8/263:54 pm
BUF
- LHR
2 stops16h 11m
Delta
Fri 9/119:55 am
LHR
- BUF
2 stops18h 08m
Delta
Deal found 5/11![Delta logo]()
$874
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/53:54 pm
BUF
- LHR
2 stops16h 21m
Delta
Thu 8/206:30 am
LHR
- BUF
2 stops17h 49m
Delta
Deal found 5/13![Delta logo]()
$875
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.
Sat 10/243:50 pm
BUF
- LHR
1 stop10h 25m
Delta
Tue 11/32:30 pm
LHR
- BUF
1 stop14h 20m
Delta
Deal found 5/14![Delta logo]()
$898
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 10/223:50 pm
BUF
- LHR
1 stop12h 00m
Delta
Sun 11/110:10 am
LHR
- BUF
1 stop13h 08m
Delta
Deal found 5/14![Delta logo]()
$898
This Delta deal was found by Cheapflights users on 5/12. 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 7/313:57 pm
BUF
- LHR
1 stop10h 18m
Delta
Wed 8/128:40 am
LHR
- BUF
2 stops15h 39m
Delta
Deal found 5/12![Delta logo]()
$970
This Delta deal was found by Cheapflights users on 5/11. 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 8/512:01 pm
BUF
- LHR
2 stops14h 14m
Delta
Fri 8/146:30 am
LHR
- BUF
2 stops17h 38m
Delta
Deal found 5/11![Delta logo]()
$1,008
Last-minute flights from Buffalo to HeathrowDiscover last-minute flight deals from Buffalo to Heathrow. Data last updated May 15, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Heathrow. Data last updated May 15, 2026 and is based on user searches.
This JetBlue deal was found by Cheapflights users on 5/12. 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.
Fri 5/152:27 pm
BUF
- LHR
1 stop11h 03m
JetBlue
Sun 5/318:40 am
LHR
- BUF
1 stop13h 35m
JetBlue
Deal found 5/12![JetBlue logo]()
$957
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/1611:02 am
BUF
- LHR
2 stops13h 53m
United Airlines
Sun 5/316:50 am
LHR
- BUF
2 stops20h 41m
United Airlines
Deal found 5/12![United Airlines logo]()
$999
This Air Canada deal was found by Cheapflights users on 5/12. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:57 pm
BUF
- LHR
2 stops15h 03m
Air Canada
Mon 6/12:05 pm
LHR
- BUF
2 stops31h 36m
Air Canada
Deal found 5/12![Air Canada logo]()
$1,007
This Justfly.com deal was found by Cheapflights users on 5/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/162:28 pm
BUF
- LHR
1 stop11h 02m
JetBlue
Sun 5/318:40 am
LHR
- BUF
1 stop32h 55m
JetBlue
Deal found 5/12![JetBlue logo]()
$1,020
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/171:57 pm
BUF
- LHR
1 stop11h 48m
United Airlines
Sun 5/316:50 am
LHR
- BUF
2 stops16h 15m
United Airlines
Deal found 5/12![United Airlines logo]()
$994
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/177:00 am
BUF
- LHR
2 stops18h 30m
United Airlines
Mon 6/16:50 am
LHR
- BUF
2 stops19h 13m
United Airlines
Deal found 5/12![United Airlines logo]()
$998
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:00 am
BUF
- LHR
1 stop18h 30m
JetBlue
Tue 5/268:40 am
LHR
- BUF
1 stop17h 58m
JetBlue
Deal found 5/14![JetBlue logo]()
$1,014
This Air Canada deal was found by Cheapflights users on 5/12. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:02 am
BUF
- LHR
2 stops19h 48m
Air Canada
Mon 6/12:05 pm
LHR
- BUF
2 stops31h 36m
Air Canada
Deal found 5/12![Air Canada logo]()
$1,012
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:02 am
BUF
- LHR
1 stop16h 58m
United Airlines
Fri 6/57:25 am
LHR
- BUF
2 stops18h 38m
United Airlines
Deal found 5/15![United Airlines logo]()
$993
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:50 am
BUF
- LHR
1 stop14h 40m
JetBlue
Fri 5/298:40 am
LHR
- BUF
1 stop12h 57m
JetBlue
Deal found 5/15![JetBlue logo]()
$1,016
This Flighttix deal was found by Cheapflights users on 5/12. 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.
Mon 6/12:47 pm
BUF
- LHR
1 stop13h 43m
JetBlue
Tue 6/168:15 am
LHR
- BUF
1 stop15h 57m
JetBlue
Deal found 5/12![JetBlue logo]()
$935
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 May 15, 2026.
Search for one-way flight options from Buffalo to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 15, 2026.
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:10 pm
BUF
- LHR
1 stop12h 05m
British Airways
Deal found 5/13![British Airways logo]()
$333
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:59 pm
BUF
- LHR
2 stops19h 41m
United Airlines
Deal found 5/14![United Airlines logo]()
$340
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:06 am
BUF
- LHR
2 stops19h 29m
Iberia
Deal found 5/13![Iberia logo]()
$342
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:49 pm
BUF
- LHR
1 stop32h 01m
British Airways
Deal found 5/14![British Airways logo]()
$344
This FlightHub deal was found by Cheapflights users on 5/11. 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.
Sun 8/2310:30 am
BUF
- LHR
2 stops17h 05m
Air Canada
Deal found 5/11![Air Canada logo]()
$349
This Delta deal was found by Cheapflights users on 5/11. 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 8/1412:01 pm
BUF
- LHR
2 stops14h 14m
Delta
Deal found 5/11![Delta logo]()
$351
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.
Fri 7/317:50 pm
BUF
- LHR
2 stops13h 00m
Delta
Deal found 5/14![Delta logo]()
$361
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:00 pm
BUF
- LHR
1 stop11h 05m
British Airways
Deal found 5/13![British Airways logo]()
$383
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.
Thu 9/2410:50 am
BUF
- LHR
2 stops15h 05m
United Airlines
Deal found 5/13![United Airlines logo]()
$390
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:00 am
BUF
- LHR
3 stops18h 30m
Air Canada
Deal found 5/14![Air Canada logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Fri 8/282:50 pm
BUF
- LHR
3 stops40h 05m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$403
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 May 15, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $870 (Delta) |
One-way from | $333 (oojo) |
Popular in | June |
Cheapest in | September |
Average price | $906 |
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 May 15, 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 - LHR
BUFLHR
Buffalo
Wed 9/30
10:50 am-7:55 am
2 stops16h 05m
London Heathrow
Tue 10/6
8:45 am-8:31 pm
2 stops16h 46m
$852
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Wed 9/30
7:35 pm-1:05 pm
1 stop12h 30m
London Heathrow
Tue 10/6
6:30 am-6:54 pm
2 stops17h 24m
$870
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Wed 8/26
3:54 pm-1:05 pm
2 stops16h 11m
London Heathrow
Fri 9/11
9:55 am-11:03 pm
2 stops18h 08m
$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
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 - LHR
BUFLHR
Buffalo
Thu 10/22
3:50 pm-8:50 am
1 stop12h 00m
London Heathrow
Sun 11/1
10:10 am-6:18 pm
1 stop13h 08m
$898
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Fri 7/31
3:57 pm-7:15 am
1 stop10h 18m
London Heathrow
Wed 8/12
8:40 am-7:19 pm
2 stops15h 39m
$970
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Fri 7/31
6:15 am-6:30 am
2 stops19h 15m
London Heathrow
Wed 8/12
7:30 am-11:44 pm
2 stops21h 14m
$976
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Wed 8/5
12:01 pm-7:15 am
2 stops14h 14m
London Heathrow
Fri 8/14
6:30 am-7:08 pm
2 stops17h 38m
$1,008
Showing 1-10 of 22 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 May.
| 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 | |
| Price Accuracy2 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
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How far ahead should I book a flight from Buffalo to London Heathrow Airport?
To ensure you get the cheapest price possible for a flight from Buffalo to London Heathrow Airport, you should look to book at least 26 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, September is the cheapest month in which you can book a flight from Buffalo to London Heathrow Airport (average of $631). Flying from Buffalo to London Heathrow Airport in June is currently the most expensive (average of $951). 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?
What’s the top layover airport for flights from Buffalo to London Heathrow Airport?
Share of 1-stop round-trip flights from Buffalo to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Philadelphia (PHL) – chosen by Cheapflights users on 71% of 1-stop itineraries from Buffalo to London Heathrow Airport on Cheapflights.
What’s the cheapest layover airport for flights from Buffalo to London Heathrow Airport?
Average round-trip fare for 1-stop flights from Buffalo to London Heathrow Airport, 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 Heathrow Airport?
Shortest average travel time for 1-stop one-way flights from Buffalo to London Heathrow Airport, 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 Heathrow Airport?
Average layover duration for 1-stop one-way flights from Buffalo to London Heathrow Airport, 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 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 May 15, 2026.
See what other customers who have flown with Delta,United Airlines, andJetBlue 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.
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Food
7.2
Overall
7.9
Boarding
8.1
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Dorking
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
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Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 15, 2026.
Buffalo and Heathrow flights
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Top 7 airlines flying from Buffalo to Heathrow
Discover the top 7 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 May 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$380 | Average$729 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$451 | Average$852 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$522 | Average$736 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$534 | Average$730 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$540 | Average$812 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$618 | Average$725 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$710 | Average$890 | FlexibilityNo cancel fee | On-timeN/A |