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Cheap flights from Buffalo to London from C$ 301

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LON
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to London

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to London
Explore the most affordable flight options available from Buffalo to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2026.

Wed 18/35:54 p.m.
BUF
-
LHR
1 stop11h 16m
United Airlines
Wed 25/31:25 p.m.
LHR
-
BUF
2 stops31h 17m
United Airlines
Deal found 18/2C$ 878
Tue 17/36:00 a.m.
BUF
-
LHR
1 stop10h 35m
United Airlines
Tue 24/31:25 p.m.
LHR
-
BUF
2 stops35h 21m
United Airlines
Deal found 17/2C$ 879
Thu 19/36:00 a.m.
BUF
-
LHR
1 stop11h 20m
United Airlines
Thu 26/38:30 a.m.
LHR
-
BUF
2 stops19h 12m
United Airlines
Deal found 17/2C$ 882
Sat 18/47:45 p.m.
BUF
-
LHR
1 stop30h 10m
United Airlines
Thu 30/46:50 a.m.
LHR
-
BUF
2 stops15h 04m
United Airlines
Deal found 19/2C$ 887
Wed 6/54:59 p.m.
BUF
-
LHR
1 stop13h 21m
Delta
Wed 13/511:45 a.m.
LHR
-
BUF
2 stops17h 34m
Delta
Deal found 16/2C$ 889
Sun 13/910:50 a.m.
BUF
-
LHR
1 stop14h 55m
United Airlines
Fri 18/96:50 a.m.
LHR
-
BUF
2 stops21h 36m
United Airlines
Deal found 18/2C$ 891
Tue 25/810:50 a.m.
BUF
-
LHR
1 stop14h 55m
United Airlines
Tue 8/97:25 a.m.
LHR
-
BUF
2 stops18h 06m
United Airlines
Deal found 16/2C$ 893
Tue 14/412:50 p.m.
BUF
-
LHR
2 stops16h 30m
Delta
Thu 23/48:40 a.m.
LHR
-
BUF
2 stops18h 59m
Delta
Deal found 16/2C$ 894
Tue 1/910:50 a.m.
BUF
-
LHR
2 stops18h 10m
United Airlines
Tue 8/97:25 a.m.
LHR
-
BUF
2 stops18h 06m
United Airlines
Deal found 18/2C$ 897
Sun 12/41:00 p.m.
BUF
-
LHR
1 stop13h 10m
Delta
Tue 21/411:30 a.m.
LHR
-
BUF
2 stops16h 09m
Delta
Deal found 17/2C$ 898
Sat 19/97:55 p.m.
BUF
-
LHR
1 stop30h 00m
United Airlines
Wed 30/96:50 a.m.
LHR
-
BUF
2 stops21h 36m
United Airlines
Deal found 18/2C$ 899
Tue 12/57:00 a.m.
BUF
-
LGW
2 stops21h 25m
Delta
Wed 20/510:25 a.m.
LGW
-
BUF
2 stops18h 34m
Delta
Deal found 16/2C$ 904

Find flight deals from Buffalo to London

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to London (LON). 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 20 February 2026.

Round-trip from

C$ 878

One-way from

C$ 301

Popular in

June

Cheapest in

October

Average price

C$ 1,068
United Airlines
  • United Airlines
  • 18/3-25/3
  • 3 total stops
  • 42h 33m total
  • Buffalo to London
Search Deals
United Airlines
  • United Airlines
  • 2/8
  • 1 total stop
  • 10h 22m total
  • Buffalo to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to London 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 629,999 searches. Data last updated 20 February 2026.
Use the filters below to find and compare flights from Buffalo to London that are best for you.

Fly from

Buffalo

Fly to

London

Route

Depart

Return

Price

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 19/3

6:00 a.m.-9:20 p.m.

1 stop11h 20m

London Heathrow

Thu 26/3

8:30 a.m.-11:42 p.m.

2 stops19h 12m

C$ 882

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 18/4

7:45 p.m.-6:55 a.m.

1 stop30h 10m

London Heathrow

Thu 30/4

6:50 a.m.-4:54 p.m.

2 stops15h 04m

C$ 887

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 14/4

12:50 p.m.-10:20 a.m.

2 stops16h 30m

London Heathrow

Thu 23/4

8:40 a.m.-10:39 p.m.

2 stops18h 59m

C$ 894

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sun 12/4

1:00 p.m.-7:10 a.m.

1 stop13h 10m

London Heathrow

Tue 21/4

11:30 a.m.-10:39 p.m.

2 stops16h 09m

C$ 898

BuffaloLondon

BUF - LGW

BUFLGW

Buffalo

Tue 12/5

7:00 a.m.-9:25 a.m.

2 stops21h 25m

London Gatwick

Wed 20/5

10:25 a.m.-11:59 p.m.

2 stops18h 34m

C$ 904

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 19/8

10:20 a.m.-6:55 a.m.

1 stop15h 35m

London Heathrow

Tue 22/9

9:30 a.m.-4:47 p.m.

2 stops36h 17m

C$ 905

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 23/3

2:49 p.m.-6:40 a.m.

1 stop11h 51m

London Heathrow

Tue 31/3

2:05 p.m.-8:43 p.m.

2 stops35h 38m

C$ 923

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 15/4

6:00 a.m.-8:40 p.m.

1 stop9h 40m

London Heathrow

Thu 23/4

4:00 p.m.-11:33 p.m.

1 stop12h 33m

C$ 928

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 15/4

6:00 a.m.-8:40 p.m.

1 stop9h 40m

London Heathrow

Wed 22/4

12:15 p.m.-11:50 p.m.

1 stop16h 35m

C$ 928

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 5/8

5:47 p.m.-11:45 a.m.

1 stop12h 58m

London Heathrow

Thu 20/8

9:30 a.m.-6:22 p.m.

1 stop13h 52m

C$ 931

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/2

Showing 1-10 of 39 results
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Best time to book a flight from Buffalo to London

Have a flexible travel schedule? Discover the best time to fly to London from Buffalo with our price prediction graph.
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

How far ahead should I book a flight from Buffalo to London?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to London. Price data was last updated on 18 February 2026.

The best time to book flights from Buffalo to London is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Buffalo to London?

Currently, August is the cheapest month in which you can book a flight from Buffalo to London (average of C$ 643). Flying from Buffalo to London in June is currently the most expensive (average of C$ 1,034). 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?

What’s the top layover airport for flights from Buffalo to London?

Share of one-stop round-trip flights from Buffalo to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Boston (BOS) – chosen by Cheapflights users on 46% of one-stop itineraries from Buffalo to London on Cheapflights.

What’s the cheapest layover airport for flights from Buffalo to London?

Average round-trip fare for 1-stop flights from Buffalo to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of C$ 632.

What’s the fastest layover option from Buffalo to London?

Shortest average travel time for 1-stop one-way flights from Buffalo to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Philadelphia (PHL) have the shortest average one-way travel time for 1-stop routes: 9h 42m.

Which airport typically offers the quickest layover for flights from Buffalo to London?

Average layover duration for 1-stop one-way flights from Buffalo to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Philadelphia (PHL) offer the fastest connection on this route, with an average layover time of 1h 20m.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 20 February 2026.
Check out reviews from past customers who have flown with United Airlines,JetBlue, andBritish Airways from Buffalo to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,322 reviews
Check prices

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,322 reviews
United Airlines
7.4
Good
9,322 reviews
Check prices

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
JetBlue
7.2
Good
2,901 reviews
United Airlines
7.4
Good
9,322 reviews
Check prices

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,755 reviews
United Airlines
7.4
Good
9,322 reviews
Check prices

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Buffalo to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Buffalo to London?

    Most people fly from Buffalo (BUF) if they book a flight from Buffalo to London. On average, Buffalo has 0 outbound flights to London per day from 2 airlines. Buffalo is conveniently located just 13.4 km from Buffalo’s city centre.

  • How long is the flight from Buffalo to London?

    There are many flights that can get you from Buffalo to London in 11h 20m. Fly via United Airlines or Delta to get the fastest option. The distance from Buffalo to London is about 5697 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Buffalo to London round-trip?

    British Airways, at C$ 632, was found to be the cheapest airline from Buffalo to London. An alternate airline flying to your destination would be JetBlue. British Airways is currently priced 37% below the average price you’ll pay for this route.

  • Can I find deals for flights from Buffalo to London that include hotel bookings?

    Yes. In addition to deals on Buffalo to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to London.

  • Can I find deals for business class flights from Buffalo to London?

    Yes. Cheapflights offers flight deals from Buffalo to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to London?

    Currently, August is the cheapest month in which you can book a flight from Buffalo to London (average of C$ 643). Flying from Buffalo to London in June is currently the most expensive (average of C$ 1,034). 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.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Sutton
Twickenham
Gatwick
Slough
Marlow
Cobham
Romford
Watford
Bedford
Luton
High Wycombe
Hounslow

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to London

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Heathrow flights
John F Kennedy Intl to Heathrow flights
John F Kennedy Intl to Gatwick flights

Top 2 airlines flying from Buffalo to London

Discover the top 2 airlines that operate flights from Buffalo to London. 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 629,999 searches. Data last updated 20 February 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 632AverageC$ 644FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapestC$ 880AverageC$ 1,189FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to London?

Cheapflights helps you search for flights from Buffalo to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Buffalo to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Buffalo to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Buffalo to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Buffalo to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Buffalo today and book when prices fit your budget.

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