$328+ 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 28 — Jul 51
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
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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 29, 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 29, 2026.
This United Airlines deal was found by Cheapflights users on 5/27. 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 11/85:50 pm
BUF
- LHR
2 stops32h 20m
United Airlines
Wed 11/116:50 am
LHR
- BUF
2 stops18h 41m
United Airlines
Deal found 5/27![United Airlines logo]()
$768
This Expedia deal was found by Cheapflights users on 5/27. 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.
Thu 9/310:30 am
BUF
- LHR
1 stop19h 45m
Multiple Airlines
Sun 9/68:40 am
LHR
- BUF
1 stop19h 52m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$809
This Travelocity deal was found by Cheapflights users on 5/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:58 pm
BUF
- LHR
1 stop10h 57m
Multiple Airlines
Wed 11/117:25 am
LHR
- BUF
1 stop12h 03m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$810
This Expedia deal was found by Cheapflights users on 5/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:26 pm
BUF
- LHR
1 stop14h 09m
Multiple Airlines
Sun 11/88:15 am
LHR
- BUF
1 stop20h 34m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$849
This Cheapflightsfares deal was found by Cheapflights users on 5/26. 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 8/2610:30 am
BUF
- LHR
2 stops24h 55m
SWISS
Fri 9/116:00 am
LHR
- BUF
2 stops20h 07m
SWISS
Deal found 5/26![SWISS logo]()
$850
This The Travel House deal was found by Cheapflights users on 5/28. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:30 am
BUF
- LHR
2 stops18h 05m
Air Canada
Fri 9/117:25 am
LHR
- BUF
2 stops21h 19m
Air Canada
Deal found 5/28![Air Canada logo]()
$855
This Iberia deal was found by Cheapflights users on 5/26. 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.
Fri 9/186:56 pm
BUF
- LHR
1 stop10h 54m
Iberia
Sat 9/266:15 am
LHR
- BUF
2 stops20h 55m
Iberia
Deal found 5/26![Iberia logo]()
$863
This Travelocity deal was found by Cheapflights users on 5/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:56 pm
BUF
- LHR
1 stop10h 54m
Iberia
Wed 9/306:15 am
LHR
- BUF
2 stops20h 55m
Iberia
Deal found 5/28![Iberia logo]()
$864
This Delta deal was found by Cheapflights users on 5/28. 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 8/2610:00 am
BUF
- LHR
1 stop15h 20m
Delta
Fri 9/119:55 am
LHR
- BUF
2 stops18h 08m
Delta
Deal found 5/28![Delta logo]()
$868
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 29, 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 29, 2026.
This Delta deal was found by Cheapflights users on 5/25. 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 9/303:55 pm
BUF
- LHR
1 stop16h 20m
Delta
Tue 10/68:40 am
LHR
- BUF
2 stops15h 14m
Delta
Deal found 5/25![Delta logo]()
$868
This British Airways deal was found by Cheapflights users on 5/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:10 pm
BUF
- LHR
1 stop12h 05m
British Airways
Thu 8/209:45 am
LHR
- BUF
1 stop12h 16m
British Airways
Deal found 5/26![British Airways logo]()
$897
This KLM deal was found by Cheapflights users on 5/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:19 pm
BUF
- LHR
1 stop12h 56m
KLM
Thu 8/63:15 pm
LHR
- BUF
1 stop13h 44m
KLM
Deal found 5/25![KLM logo]()
$991
This Scandinavian Airlines deal was found by Cheapflights users on 5/24. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:15 am
BUF
- LHR
2 stops23h 45m
Scandinavian Airlines
Tue 10/67:05 am
LHR
- BUF
3 stops21h 45m
Scandinavian Airlines
Deal found 5/24![Scandinavian Airlines logo]()
$1,004
This Virgin Atlantic deal was found by Cheapflights users on 5/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:05 pm
BUF
- LHR
1 stop19h 05m
Virgin Atlantic
Sun 8/28:20 am
LHR
- BUF
1 stop21h 30m
Virgin Atlantic
Deal found 5/27![Virgin Atlantic logo]()
$1,066
This Delta deal was found by Cheapflights users on 5/27. 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 7/227:24 pm
BUF
- LHR
1 stop12h 51m
Delta
Sat 8/2211:45 am
LHR
- BUF
2 stops17h 14m
Delta
Deal found 5/27![Delta logo]()
$869
This Delta deal was found by Cheapflights users on 5/27. 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 10/87:15 pm
BUF
- LHR
2 stops13h 30m
Delta
Mon 10/126:30 am
LHR
- BUF
2 stops17h 03m
Delta
Deal found 5/27![Delta logo]()
$873
This British Airways deal was found by Cheapflights users on 5/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:10 pm
BUF
- LHR
1 stop12h 05m
British Airways
Fri 8/149:15 am
LHR
- BUF
1 stop14h 52m
British Airways
Deal found 5/26![British Airways logo]()
$981
This Delta deal was found by Cheapflights users on 5/24. 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.
Fri 7/2412:16 pm
BUF
- LHR
1 stop13h 09m
Delta
Thu 8/68:40 am
LHR
- BUF
2 stops15h 39m
Delta
Deal found 5/24![Delta logo]()
$963
This Delta deal was found by Cheapflights users on 5/25. 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.
Thu 6/188:09 pm
BUF
- LHR
1 stop11h 06m
Delta
Tue 6/236:30 am
LHR
- BUF
2 stops16h 57m
Delta
Deal found 5/25![Delta logo]()
$1,058
This Delta deal was found by Cheapflights users on 5/28. 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 6/2512:04 pm
BUF
- LHR
2 stops14h 36m
Delta
Thu 7/26:30 am
LHR
- BUF
2 stops16h 57m
Delta
Deal found 5/28![Delta logo]()
$1,067
Last-minute flights from Buffalo to HeathrowDiscover last-minute flight deals from Buffalo to Heathrow. Data last updated May 29, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Heathrow. Data last updated May 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
BUF
- LHR
1 stop9h 40m
United Airlines
Fri 6/56:50 am
LHR
- BUF
2 stops17h 13m
United Airlines
Deal found 5/24![United Airlines logo]()
$1,063
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/13:00 pm
BUF
- LHR
1 stop10h 55m
United Airlines
Mon 6/86:50 am
LHR
- BUF
2 stops14h 51m
United Airlines
Deal found 5/27![United Airlines logo]()
$1,064
This JetBlue deal was found by Cheapflights users on 5/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:45 am
BUF
- LHR
1 stop17h 45m
JetBlue
Thu 6/188:40 am
LHR
- BUF
1 stop20h 08m
JetBlue
Deal found 5/24![JetBlue logo]()
$1,010
This Cheapflightsfares deal was found by Cheapflights users on 5/26. 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 6/510:34 am
BUF
- LHR
1 stop14h 21m
Austrian Airlines
Mon 6/89:30 am
LHR
- BUF
1 stop13h 35m
Austrian Airlines
Deal found 5/26![Austrian Airlines logo]()
$1,048
This Cheapflightsfares deal was found by Cheapflights users on 5/26. 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 6/57:52 pm
BUF
- LHR
1 stop9h 48m
Lufthansa
Mon 6/89:30 am
LHR
- BUF
2 stops14h 33m
Lufthansa
Deal found 5/26![Lufthansa logo]()
$1,052
This Expedia deal was found by Cheapflights users on 5/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:54 am
BUF
- LHR
2 stops15h 36m
JetBlue
Fri 6/128:40 am
LHR
- BUF
1 stop15h 40m
JetBlue
Deal found 5/23![JetBlue logo]()
$1,062
This Delta deal was found by Cheapflights users on 5/28. 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 6/218:09 pm
BUF
- LHR
1 stop11h 06m
Delta
Sun 6/2811:45 am
LHR
- BUF
2 stops17h 53m
Delta
Deal found 5/28![Delta logo]()
$1,059
This Delta deal was found by Cheapflights users on 5/28. 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 6/233:49 pm
BUF
- LHR
1 stop10h 26m
Delta
Fri 7/39:55 am
LHR
- BUF
2 stops19h 04m
Delta
Deal found 5/28![Delta logo]()
$1,058
This Delta deal was found by Cheapflights users on 5/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/299:03 am
BUF
- LHR
1 stop17h 07m
Delta
Sun 7/56:15 am
LHR
- BUF
2 stops18h 02m
Delta
Deal found 5/26![Delta logo]()
$1,065
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 29, 2026.
Search for one-way flight options from Buffalo to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 29, 2026.
This oojo deal was found by Cheapflights users on 5/25. 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 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 5/25![British Airways logo]()
$328
This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:20 am
BUF
- LHR
2 stops15h 55m
United Airlines
Deal found 5/24![United Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 5/28. 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 8/1412:02 pm
BUF
- LHR
2 stops14h 13m
Delta
Deal found 5/28![Delta logo]()
$342
This Delta deal was found by Cheapflights users on 5/27. 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 8/207:48 pm
BUF
- LHR
2 stops13h 02m
Delta
Deal found 5/27![Delta logo]()
$351
This Cheapflightsfares deal was found by Cheapflights users on 5/27. 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 7/137:00 am
BUF
- LHR
1 stop18h 30m
JetBlue
Deal found 5/27![JetBlue logo]()
$354
This FlightHub deal was found by Cheapflights users on 5/23. 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.
Tue 11/311:40 am
BUF
- LHR
1 stop13h 40m
Austrian Airlines
Deal found 5/23![Austrian Airlines logo]()
$358
This Expedia deal was found by Cheapflights users on 5/27. 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.
Sat 7/1110:43 am
BUF
- LHR
1 stop14h 47m
JetBlue
Deal found 5/27![JetBlue logo]()
$389
This FlightHub deal was found by Cheapflights users on 5/23. 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.
Mon 11/212:10 pm
BUF
- LHR
1 stop16h 20m
JetBlue
Deal found 5/23![JetBlue logo]()
$408
This FlightHub deal was found by Cheapflights users on 5/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:00 am
BUF
- LHR
1 stop19h 55m
JetBlue
Deal found 5/24![JetBlue logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 5/27. 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.
Mon 7/137:57 pm
BUF
- LHR
3 stops34h 58m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$426
This FlightHub deal was found by Cheapflights users on 5/23. 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.
Mon 11/22:32 pm
BUF
- LHR
2 stops26h 03m
TAP AIR PORTUGAL
Deal found 5/23![TAP AIR PORTUGAL logo]()
$435
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 29, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $768 (United Airlines) |
One-way from | $328 (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 29, 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
3:55 pm-1:15 pm
1 stop16h 20m
London Heathrow
Tue 10/6
8:40 am-6:54 pm
2 stops15h 14m
$868
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Wed 7/22
7:24 pm-1:15 pm
1 stop12h 51m
London Heathrow
Sat 8/22
11:45 am-11:59 pm
2 stops17h 14m
$869
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Thu 10/8
7:15 pm-1:45 pm
2 stops13h 30m
London Heathrow
Mon 10/12
6:30 am-6:33 pm
2 stops17h 03m
$873
Quickest round-trip
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Wed 8/5
6:10 pm-11:15 am
1 stop12h 05m
London Heathrow
Thu 8/20
9:45 am-5:01 pm
1 stop12h 16m
$897
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Fri 7/24
12:16 pm-6:25 am
1 stop13h 09m
London Heathrow
Thu 8/6
8:40 am-7:19 pm
2 stops15h 39m
$963
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Thu 8/6
6:10 pm-11:15 am
1 stop12h 05m
London Heathrow
Fri 8/14
9:15 am-7:07 pm
1 stop14h 52m
$981
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Fri 7/24
7:19 pm-1:15 pm
1 stop12h 56m
London Heathrow
Thu 8/6
3:15 pm-11:59 pm
1 stop13h 44m
$991
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Wed 9/30
11:15 am-4:00 pm
2 stops23h 45m
London Heathrow
Tue 10/6
7:05 am-11:50 pm
3 stops21h 45m
$1,004
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Thu 6/18
8:09 pm-12:15 pm
1 stop11h 06m
London Heathrow
Tue 6/23
6:30 am-6:27 pm
2 stops16h 57m
$1,058
BuffaloLondon
BUF - LHR
BUFLHR
Buffalo
Fri 7/17
8:05 pm-8:10 pm
1 stop19h 05m
London Heathrow
Sun 8/2
8:20 am-12:50 am
1 stop21h 30m
$1,066
Showing 1-10 of 19 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 |
- 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
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?
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 29, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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.
Overall
7.9
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Food
7.2
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Stansted
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Buffalo to Heathrow
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Complete your trip
Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Buffalo to Heathrow by cabin class
Find flights from Buffalo to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 29, 2026.
Buffalo and Heathrow flights
Browse other Buffalo and Heathrow flight options. Last updated on May 29, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on May 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 29, 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$722 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$540 | Average$842 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$639 | Average$725 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$710 | Average$890 | FlexibilityNo cancel fee | On-timeN/A |