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Cheap flights from Buffalo to London from C$ 375

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LON
2 May — 9 May1
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 2 April 2026.

Sat 25/412:09 p.m.
BUF
-
LHR
1 stop13h 16m
KLM
Sat 2/53:50 p.m.
LHR
-
BUF
1 stop14h 00m
KLM
Deal found 28/3C$ 1,003
Sat 11/46:15 a.m.
BUF
-
LHR
1 stop19h 55m
Delta
Sun 19/45:45 p.m.
LHR
-
BUF
1 stop12h 05m
Delta
Deal found 1/4C$ 1,006
Tue 14/412:09 p.m.
BUF
-
LHR
1 stop13h 16m
Delta
Tue 21/48:40 a.m.
LHR
-
BUF
2 stops18h 59m
Delta
Deal found 1/4C$ 1,007
Fri 24/47:59 p.m.
BUF
-
LHR
1 stop11h 06m
Delta
Fri 1/56:30 a.m.
LHR
-
BUF
2 stops17h 05m
Delta
Deal found 30/3C$ 1,009
Tue 21/411:52 a.m.
BUF
-
LHR
1 stop17h 28m
Delta
Sat 25/46:15 a.m.
LHR
-
BUF
2 stops18h 04m
Delta
Deal found 30/3C$ 1,010
Wed 5/83:54 p.m.
BUF
-
LHR
2 stops15h 11m
Delta
Thu 20/811:30 a.m.
LHR
-
BUF
2 stops16h 33m
Delta
Deal found 31/3C$ 1,014
Thu 7/512:04 p.m.
BUF
-
LHR
2 stops17h 16m
Delta
Fri 15/56:30 a.m.
LHR
-
BUF
2 stops17h 21m
Delta
Deal found 31/3C$ 1,015
Wed 22/412:50 p.m.
BUF
-
LHR
1 stop13h 20m
KLM
Sun 10/511:20 a.m.
LHR
-
BUF
1 stop12h 55m
KLM
Deal found 31/3C$ 1,017
Fri 24/43:53 p.m.
BUF
-
LHR
1 stop10h 17m
KLM
Fri 1/53:15 p.m.
LHR
-
BUF
1 stop13h 22m
KLM
Deal found 30/3C$ 1,018
Wed 22/73:54 p.m.
BUF
-
LHR
2 stops15h 11m
Delta
Sat 22/84:20 p.m.
LHR
-
BUF
1 stop12h 36m
Delta
Deal found 31/3C$ 1,022
Tue 21/44:59 p.m.
BUF
-
LGW
2 stops18h 01m
Multiple Airlines
Sat 25/410:25 a.m.
LGW
-
BUF
2 stops18h 12m
Multiple Airlines
Deal found 1/4C$ 1,034
Tue 21/411:52 a.m.
BUF
-
LGW
2 stops16h 33m
Delta
Sat 25/410:25 a.m.
LGW
-
BUF
2 stops18h 12m
Delta
Deal found 29/3C$ 1,035

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 2 April 2026.

Round-trip from

C$ 1,003

One-way from

C$ 375

Popular in

June

Cheapest in

October

Average price

C$ 971
KLM
  • KLM
  • 25/4-2/5
  • 2 total stops
  • 27h 16m total
  • Buffalo to London
Search Deals
KLM
  • KLM
  • 22/4
  • 1 total stop
  • 13h 16m total
  • Buffalo to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 244 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 2 April 2026.
Use the filters below to find and compare flights from Buffalo to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 25/4

12:09 p.m.-6:25 a.m.

1 stop13h 16m

London Heathrow

Sat 2/5

3:50 p.m.-12:50 a.m.

1 stop14h 00m

C$ 1,003

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 13/4

3:53 p.m.-7:10 a.m.

1 stop10h 17m

London Heathrow

Sat 18/4

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

1 stop17h 00m

C$ 1,006

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 15/4

12:50 p.m.-7:10 a.m.

1 stop13h 20m

London Heathrow

Tue 21/4

3:50 p.m.-12:50 a.m.

1 stop14h 00m

C$ 1,006

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Mon 13/4

12:50 p.m.-7:10 a.m.

1 stop13h 20m

London Heathrow

Mon 20/4

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

2 stops16h 09m

C$ 1,007

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 21/4

2:34 p.m.-6:20 a.m.

1 stop10h 46m

London Heathrow

Sat 25/4

11:30 a.m.-11:37 p.m.

2 stops17h 07m

C$ 1,007

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 5/8

10:00 a.m.-6:20 a.m.

1 stop15h 20m

London Heathrow

Thu 20/8

6:15 a.m.-6:57 p.m.

2 stops17h 42m

C$ 1,007

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Sat 25/4

3:32 p.m.-6:45 a.m.

1 stop10h 13m

London Heathrow

Sat 2/5

6:30 a.m.-6:51 p.m.

2 stops17h 21m

C$ 1,009
Quickest round-trip

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 21/4

12:09 p.m.-6:25 a.m.

1 stop13h 16m

London Heathrow

Sat 25/4

11:45 a.m.-7:19 p.m.

1 stop12h 34m

C$ 1,018

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 22/7

3:54 p.m.-1:15 p.m.

2 stops16h 21m

London Heathrow

Sat 22/8

4:20 p.m.-11:56 p.m.

1 stop12h 36m

C$ 1,025

BuffaloLondon

BUF - LGW

BUFLGW

Buffalo

Mon 24/8

1:31 p.m.-11:45 a.m.

2 stops17h 14m

London Gatwick

Sun 30/8

3:40 p.m.-11:32 p.m.

2 stops36h 52m

C$ 1,336

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/3

Showing 1-10 of 34 resultsSorted by cheapest first
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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 13 March 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, May is the cheapest month in which you can book a flight from Buffalo to London (average of C$ 622). Flying from Buffalo to London in June is currently the most expensive (average of C$ 1,050). 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 44% 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$ 641.

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 2 April 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
9,534 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

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
9,534 reviews
United Airlines
7.4
Good
9,534 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

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
2,912 reviews
United Airlines
7.4
Good
9,534 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

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
7,841 reviews
United Airlines
7.4
Good
9,534 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Entertainment

7.1

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 10h 17m. Fly via KLM, Delta, or Virgin Atlantic 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$ 641, 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, May is the cheapest month in which you can book a flight from Buffalo to London (average of C$ 622). Flying from Buffalo to London in June is currently the most expensive (average of C$ 1,050). 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
Gatwick
Twickenham
Bromley
Sutton
Slough
Marlow
Cobham
Watford
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.
John F Kennedy Intl to Heathrow flights
Newark 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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 641AverageC$ 654FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapestC$ 893AverageC$ 1,206FlexibilityNo 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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