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Cheap flights from Buffalo to London from C$ 300

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LON
16 Mar — 23 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 14 February 2026.

Wed 18/35:29 p.m.
BUF
-
LHR
1 stop13h 46m
United Airlines
Wed 25/31:25 p.m.
LHR
-
BUF
2 stops14h 31m
United Airlines
Deal found 10/2C$ 904
Wed 18/312:07 p.m.
BUF
-
LHR
1 stop15h 43m
Delta
Wed 25/38:00 p.m.
LHR
-
BUF
2 stops19h 44m
Delta
Deal found 13/2C$ 907
Sun 1/38:00 a.m.
BUF
-
LHR
1 stop17h 55m
JetBlue
Fri 6/38:05 a.m.
LHR
-
BUF
1 stop30h 30m
JetBlue
Deal found 14/2C$ 908
Tue 18/85:50 p.m.
BUF
-
LHR
1 stop12h 55m
United Airlines
Wed 26/88:00 a.m.
LHR
-
BUF
1 stop17h 31m
United Airlines
Deal found 11/2C$ 927
Tue 18/85:50 p.m.
BUF
-
LHR
1 stop12h 55m
United Airlines
Tue 25/89:30 a.m.
LHR
-
BUF
2 stops16h 01m
United Airlines
Deal found 11/2C$ 931
Wed 5/86:00 a.m.
BUF
-
LHR
1 stop23h 40m
United Airlines
Thu 20/88:00 a.m.
LHR
-
BUF
1 stop17h 31m
United Airlines
Deal found 13/2C$ 934
Tue 29/95:50 p.m.
BUF
-
LHR
2 stops35h 10m
United Airlines
Thu 8/104:40 p.m.
LHR
-
BUF
1 stop11h 46m
United Airlines
Deal found 12/2C$ 939
Mon 30/36:00 a.m.
BUF
-
LHR
1 stop9h 45m
JetBlue
Mon 6/48:40 a.m.
LHR
-
BUF
1 stop16h 20m
JetBlue
Deal found 13/2C$ 944
Wed 25/26:00 a.m.
BUF
-
LHR
1 stop10h 40m
JetBlue
Sun 1/312:20 p.m.
LHR
-
BUF
1 stop16h 12m
JetBlue
Deal found 13/2C$ 949
Mon 23/310:32 a.m.
BUF
-
LHR
2 stops16h 33m
Delta
Tue 31/310:45 a.m.
LHR
-
BUF
1 stop17h 10m
Delta
Deal found 10/2C$ 950
Tue 12/55:41 p.m.
BUF
-
LHR
1 stop13h 24m
Delta
Fri 22/54:20 p.m.
LHR
-
BUF
1 stop12h 59m
Delta
Deal found 13/2C$ 952
Thu 2/46:09 a.m.
BUF
-
LHR
2 stops19h 36m
United Airlines
Thu 9/46:55 a.m.
LHR
-
BUF
2 stops18h 48m
United Airlines
Deal found 11/2C$ 959

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 14 February 2026.

Round-trip from

C$ 904

One-way from

C$ 300

Popular in

June

Cheapest in

October

Average price

C$ 1,062
United Airlines
  • United Airlines
  • 18/3-25/3
  • 3 total stops
  • 28h 17m total
  • Buffalo to London
Search Deals
United Airlines
  • United Airlines
  • 2/8
  • 2 total stops
  • 19h 45m total
  • Buffalo to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 223 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 14 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

Wed 18/3

5:29 p.m.-11:15 a.m.

1 stop13h 46m

London Heathrow

Wed 25/3

1:25 p.m.-11:56 p.m.

2 stops14h 31m

C$ 904

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 18/3

12:07 p.m.-7:50 a.m.

1 stop15h 43m

London Heathrow

Wed 25/3

8:00 p.m.-11:44 a.m.

2 stops19h 44m

C$ 907

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 5/8

6:00 a.m.-10:40 a.m.

1 stop23h 40m

London Heathrow

Thu 20/8

8:00 a.m.-8:31 p.m.

1 stop17h 31m

C$ 934

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 13/5

10:32 a.m.-6:20 a.m.

1 stop14h 48m

London Heathrow

Fri 22/5

4:05 p.m.-12:19 a.m.

1 stop13h 14m

C$ 952

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 12/5

5:41 p.m.-12:05 p.m.

1 stop13h 24m

London Heathrow

Fri 22/5

4:20 p.m.-12:19 a.m.

1 stop12h 59m

C$ 952

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 2/4

10:35 a.m.-6:55 a.m.

1 stop15h 20m

London Heathrow

Thu 9/4

6:55 a.m.-8:43 p.m.

2 stops18h 48m

C$ 952

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Tue 12/5

10:32 a.m.-6:20 a.m.

1 stop14h 48m

London Heathrow

Thu 21/5

8:20 a.m.-5:01 p.m.

1 stop13h 41m

C$ 952

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 13/5

10:32 a.m.-6:20 a.m.

1 stop14h 48m

London Heathrow

Thu 21/5

11:45 a.m.-11:32 p.m.

1 stop16h 47m

C$ 952

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Thu 7/5

3:52 p.m.-1:05 p.m.

2 stops16h 13m

London Heathrow

Fri 15/5

11:30 a.m.-11:59 p.m.

2 stops17h 29m

C$ 968

BuffaloLondon

BUF - LHR

BUFLHR

Buffalo

Wed 13/5

12:25 p.m.-9:30 a.m.

1 stop16h 05m

London Heathrow

Sun 24/5

8:15 a.m.-6:44 p.m.

1 stop15h 29m

C$ 969

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 35 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 6 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, May is the cheapest month in which you can book a flight from Buffalo to London (average of C$ 640). Flying from Buffalo to London in June is currently the most expensive (average of C$ 1,028). 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.

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$ 629.

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 14 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
9,291 reviews
Check prices

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

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
9,291 reviews
United Airlines
7.4
Good
9,291 reviews
Check prices

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

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
2,898 reviews
United Airlines
7.4
Good
9,291 reviews
Check prices

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

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
7,739 reviews
United Airlines
7.4
Good
9,291 reviews
Check prices

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

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 13h 46m. Fly via United Airlines, Delta, or Turkish Airlines 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$ 629, 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$ 640). Flying from Buffalo to London in June is currently the most expensive (average of C$ 1,028). 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
Milton Keynes
Romford
Watford
Bedford
Luton
High Wycombe
Hounslow

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.

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
John F Kennedy Intl to Gatwick flights
Newark to Heathrow 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 14 February 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 629AverageC$ 641FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapestC$ 875AverageC$ 1,182FlexibilityNo 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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