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Portsmouth

$874+ Cheap flights from Buffalo (BUF) to Portsmouth, England

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

June

Cheapest in

April

Average price

$646
Provider with most accurate pricing for Buffalo-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-London (LON) flights.
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 14, 2026.

This Ovago deal was found by Cheapflights users on 1/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:50 pm
BUF
-
SOU
2 stops14h 55m
Multiple Airlines
Sat 8/295:30 pm
SOU
-
BUF
2 stops30h 30m
Multiple Airlines
Deal found 1/13$874

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, August is the cheapest month in which you can book a flight from Buffalo to Portsmouth (average of $470). Flying from Buffalo to Portsmouth in June is currently the most expensive (average of $756). 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.

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.

  • 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, August is the cheapest month in which you can book a flight from Buffalo to Portsmouth (average of $470). Flying from Buffalo to Portsmouth in June is currently the most expensive (average of $756). 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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Alternative routes for Buffalo to Portsmouth

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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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$451Average$792FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$765FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$534Average$772FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$593Average$763FlexibilityNo cancel feeOn-time62%
DeltaCheapest$596Average$780FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$626Average$748FlexibilityNo cancel feeOn-time72%

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