$494+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — LHR
Dec 26 — Jan 21
1 adult, Economy
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Find cheap flights from Buffalo to Portsmouth with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 November 26, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $758 (Delta) |
One-way from | $494 (KLM) |
Popular in | June |
Cheapest in | February |
Average price | $782 |
Find flight deals from Buffalo to Portsmouth
Best flights from Buffalo to PortsmouthDiscover carefully curated flight deals from Buffalo to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 26, 2025.
Discover carefully curated flight deals from Buffalo to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 26, 2025.
This Delta deal was found by Cheapflights users on 11/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:51 amBUF - SOU
2 stops24h 09mDelta
Mon 2/235:30 pmSOU - BUF
2 stops30h 30mDelta
Deal found 11/25![Delta logo]()
$758
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 November 26, 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
Thu 2/19
11:51 am-5:00 pm
2 stops24h 09m
Southampton Eastleigh
Mon 2/23
5:30 pm-7:00 pm
2 stops30h 30m
$758
BuffaloSouthampton
BUF - SOU
BUFSOU
Buffalo
Wed 2/18
5:44 pm-5:00 pm
2 stops18h 16m
$494
BuffaloSouthampton
BUF - SOU
BUFSOU
Buffalo
Wed 2/18
10:21 am-7:40 am
3 stops40h 19m
$562
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, December is the cheapest month in which you can book a flight from Buffalo to Portsmouth (average of $414). 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.
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 November 26, 2025.
A simple way to save on the total cost of your ticket is to fly from Buffalo to Portsmouth in the evening. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the morning.
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.
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Alternative routes for Buffalo to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.
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 November 26, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$414 | Average$734 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$451 | Average$793 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$522 | Average$762 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$534 | Average$778 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$596 | Average$782 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$636 | Average$729 | FlexibilityNo cancel fee | On-time72% |