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Portsmouth

$650+ Cheap flights from Buffalo (BUF) to Portsmouth, England

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Buffalo to Portsmouth

Keep the following information in mind while searching for Buffalo to Portsmouth flight deals. Data was last updated August 18, 2025.

Round-trip from

$998
(KLM)

One-way from

$650
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$659
From Buffalo to Portsmouth
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One-way flight from Buffalo to Portsmouth
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Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Buffalo to Portsmouth

Cheapest flights from Buffalo to Portsmouth
Explore the most affordable flight options available from Buffalo to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This KLM deal was found by Cheapflights users on 8/18. 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.
Mon 9/157:34 pmBUF - SOU
2 stops16h 26mKLM
Mon 9/225:35 pmSOU - BUF
2 stops26h 36mKLM
Deal found 8/18$998

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Portsmouth 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 August 18, 2025.
Use the filters below to find and compare flights from Buffalo to Portsmouth that are best for you.

Fly from

Buffalo

Fly to

Portsmouth

Route

Depart

Return

Price

BuffaloSouthampton

BUF - SOU

BUFSOU

Buffalo

Mon 9/15

7:34 pm-5:00 pm

2 stops16h 26m

Southampton Eastleigh

Mon 9/22

5:35 pm-3:11 pm

2 stops26h 36m

$998

BuffaloSouthampton

BUF - SOU

BUFSOU

Buffalo

Sat 1/3

6:56 pm-4:40 pm

2 stops40h 44m

$650

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Buffalo to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth 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 Portsmouth

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

Currently, November is the cheapest month in which you can book a flight from Buffalo to Portsmouth (average of $661). Flying from Buffalo to Portsmouth in June is currently the most expensive (average of $1,097). 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 is the cheapest time of day to fly from BUF to P0R?

Find hourly flight availability from Buffalo to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from Buffalo to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Portsmouth. 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 Portsmouth?

    Buffalo (BUF) is the airport you will fly out of if you book a flight from Buffalo to Portsmouth. You should not have trouble finding flights to Portsmouth from Buffalo; the airport handles an average of 0 outbound flights to Portsmouth per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Buffalo airport to Portsmouth. It is only a 8.3 mi journey to Buffalo (BUF) from Buffalo’s city center.

  • How long is the flight from Buffalo to Portsmouth?

    KLM can get you from Buffalo to Portsmouth in just under 16h 26m. Your travel time can differ by up to . There are 3519 mi between Buffalo and Portsmouth.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Portsmouth 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 Portsmouth?

    Currently, November is the cheapest month in which you can book a flight from Buffalo to Portsmouth (average of $661). Flying from Buffalo to Portsmouth in June is currently the most expensive (average of $1,097). 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.

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Top 6 airlines flying from Buffalo to Portsmouth

Discover the top 6 airlines that operate flights from Buffalo to Portsmouth. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$454Average$685FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$534Average$728FlexibilityNo cancel feeOn-time70%
DeltaCheapest$596Average$779FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$604Average$802FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$626Average$695FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$659Average$805FlexibilityNo cancel feeOn-time69%

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