GBP/GB
Find cheap flights to Portsmouth, New Hampshire in 2026/2027 from £605 This is the cheapest return flight found to Portsmouth, New Hampshire from UK on FlightsFinder on January 25th 2026 at 02:13. This offer may no longer be available. Click the offer to check live prices & dates of travel.
Our Flight Finder compares the cheapest flights to Portsmouth, New Hampshire from the most established flight comparison sites.
Fly to Portsmouth, New Hampshire and visit sites like Strawbery Banke Museum, Water Country Water Park, Prescott Park & USS Albacore Museum.
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These economy flights were found on FlightsFinder from UK to Portsmouth, New Hampshire in the last few days. Prices subject to availability.
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These economy flights were found on FlightsFinder from UK to Portsmouth, New Hampshire in the last few days. Prices subject to availability.
No flights found for this month.
No flights found for this month.
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No flights found for this month.
According to our data, March is on average the cheapest time to book flights to Portsmouth, New Hampshire.
You can get flights from £605 return.
According to our data, April is on average the most expensive time to book flights to Portsmouth, New Hampshire.
A return flight could set you back more than £1,255.
Located along the picturesque coastline of New Hampshire, Portsmouth seamlessly blends historic charm with a vibrant modern energy. This coastal city boasts a rich maritime heritage, evident in its well-preserved colonial architecture and bustling waterfront. Visitors can explore local boutiques, art galleries, and fine dining establishments in the vibrant downtown area, or unwind on the sandy shores of nearby beaches. With its inviting atmosphere, cultural attractions, and scenic views of the Piscataqua River, Portsmouth offers a delightful blend of history, culture, and natural beauty that captivates travelers from near and far.
A good price for a flight to Boston is £545 - £666.
The popular airports near Portsmouth, New Hampshire are: Portsmouth International Airport at Pease (PSM), Manchester-Boston Regional Airport (MHT), and Boston Logan International Airport (BOS).
The flight to Portsmouth, New Hampshire (PSM) is roughly 7 hours 39 minutes and 3,219 miles (5,180 kilometres) from London, England UK - Heathrow International Airport (LHR).
The best way is to compare flights to Portsmouth, New Hampshire from leading comparison sites using our search engine dashboard.
We have currently found no direct flights to Portsmouth, New Hampshire.
Here is the average weather forecast in Portsmouth, New Hampshire by month:
• Jan: 0°C
• Feb: 0°C
• Mar: 5°C
• Apr: 11°C
• May: 18°C
• Jun: 23°C
• Jul: 26°C
• Aug: 25°C
• Sep: 21°C
• Oct: 15°C
• Nov: 9°C
• Dec: 1°C
The Portsmouth International Airport at Pease is located approximately 4 miles (6.4 km) from the city center of Portsmouth, New Hampshire.
Typically, flights are cheapest to Portsmouth, New Hampshire 2 months before departure.
Studies show flights to Portsmouth, New Hampshire are typically cheaper on Tuesdays and Wednesdays.
7.6 °C
Wed, 28 Jan 2026
Average Temperature
0°C
Jan
0°C
Feb
5°C
Mar
11°C
Apr
18°C
May
23°C
Jun
26°C
Jul
25°C
Aug
21°C
Sep
15°C
Oct
9°C
Nov
1°C
Dec
London, England UK - Heathrow International Airport (LHR) to Portsmouth, New Hampshire (PSM)
Distance:
3,219 miles (5,180 kilometres)
Average flight time (direct 7 hours 39 minutes)
London, England UK - London Gatwick International Airport (LGW) to Portsmouth, New Hampshire (PSM)
Distance:
3,237 miles (5,210 kilometres)
Average flight time (direct 7 hours 41 minutes)
Manchester, England UK - Manchester Airport (MAN) to Portsmouth, New Hampshire (PSM)
Distance:
3,107 miles (5,001 kilometres)
Average flight time (direct 7 hours 24 minutes)
London, England UK - London North East - Stansted International Airport (STN) to Portsmouth, New Hampshire (PSM)
Distance:
3,238 miles (5,211 kilometres)
Average flight time (direct 7 hours 41 minutes)
London, England UK - London North, Luton International Airport (LTN) to Portsmouth, New Hampshire (PSM)
Distance:
3,214 miles (5,172 kilometres)
Average flight time (direct 7 hours 38 minutes)
Edinburgh, Scotland UK - Airport (EDI) to Portsmouth, New Hampshire (PSM)
Distance:
3,021 miles (4,861 kilometres)
Average flight time (direct 7 hours 12 minutes)
Birmingham, England UK - Birmingham Airport (BHX) to Portsmouth, New Hampshire (PSM)
Distance:
3,146 miles (5,063 kilometres)
Average flight time (direct 7 hours 29 minutes)
Bristol, UK - Bristol Airport (BRS) to Portsmouth, New Hampshire (PSM)
Distance:
3,128 miles (5,035 kilometres)
Average flight time (direct 7 hours 27 minutes)
Glasgow, Scotland UK - Glasgow International Airport (GLA) to Portsmouth, New Hampshire (PSM)
Distance:
2,982 miles (4,798 kilometres)
Average flight time (direct 7 hours 7 minutes)
Belfast, Ireland UK - Belfast International Airport (BFS) to Portsmouth, New Hampshire (PSM)
Distance:
2,930 miles (4,716 kilometres)
Average flight time (direct 7 hours)
Newcastle, UK - Newcastle International Airport (NCL) to Portsmouth, New Hampshire (PSM)
Distance:
3,099 miles (4,988 kilometres)
Average flight time (direct 7 hours 23 minutes)
London, England UK - Royal Docks - London City Airport (LCY) to Portsmouth, New Hampshire (PSM)
Distance:
3,239 miles (5,213 kilometres)
Average flight time (direct 7 hours 41 minutes)
Liverpool, UK - John Lennon Airport (LPL) to Portsmouth, New Hampshire (PSM)
Distance:
3,085 miles (4,964 kilometres)
Average flight time (direct 7 hours 21 minutes)
Nottingham, UK - East Midlands Airport (EMA) to Portsmouth, New Hampshire (PSM)
Distance:
3,155 miles (5,078 kilometres)
Average flight time (direct 7 hours 30 minutes)
Leeds, UK - Leeds/Bradford Airport (LBA) to Portsmouth, New Hampshire (PSM)
Distance:
3,122 miles (5,024 kilometres)
Average flight time (direct 7 hours 26 minutes)
Aberdeen, Scotland UK - Dyce Airport (ABZ) to Portsmouth, New Hampshire (PSM)
Distance:
3,046 miles (4,902 kilometres)
Average flight time (direct 7 hours 16 minutes)
Belfast, Ireland UK - George Best City Apt Airport (BHD) to Portsmouth, New Hampshire (PSM)
Distance:
2,944 miles (4,738 kilometres)
Average flight time (direct 7 hours 2 minutes)
London, England UK - London South, Southend Airport (SEN) to Portsmouth, New Hampshire (PSM)
Distance:
3,264 miles (5,252 kilometres)
Average flight time (direct 7 hours 45 minutes)
Southampton, UK - Southampton Airport (SOU) to Portsmouth, New Hampshire (PSM)
Distance:
3,194 miles (5,140 kilometres)
Average flight time (direct 7 hours 35 minutes)
Jersey, UK - Jersey Airport (JER) to Portsmouth, New Hampshire (PSM)
Distance:
3,198 miles (5,147 kilometres)
Average flight time (direct 7 hours 36 minutes)
Cardiff, Wales - UK - Cardiff Airport (CWL) to Portsmouth, New Hampshire (PSM)
Distance:
3,102 miles (4,993 kilometres)
Average flight time (direct 7 hours 23 minutes)
Doncaster, UK - Sheffield/ Robin Hood Airport (DSA) to Portsmouth, New Hampshire (PSM)
Distance:
3,155 miles (5,077 kilometres)
Average flight time (direct 7 hours 30 minutes)
From London (LGW), UK to Boston, United States (PSM): £605
Depart: 11 Mar 2026 · Return: 18 Mar 2026 Price found 25 Jan 2026, 02:13
From Edinburgh (EDI), UK to Boston, United States (PSM): £660
Depart: 06 Mar 2026 · Return: 21 Mar 2026 Price found 25 Jan 2026, 13:16
From Manchester (MAN), UK to Boston, United States (PSM): £1,008
Depart: 31 Jan 2026 · Return: 07 Feb 2026 Price found 26 Jan 2026, 22:49
From Newcastle (NCL), UK to Boston, United States (PSM): £1,226
Depart: 30 Jan 2026 · Return: 06 Feb 2026 Price found 25 Jan 2026, 16:32
From Glasgow (GLA), UK to Boston, United States (PSM): £1,245
Depart: 04 Feb 2026 · Return: 11 Feb 2026 Price found 26 Jan 2026, 16:56
From Leeds (LBA), UK to Boston, United States (PSM): £1,303
Depart: 13 Mar 2026 · Return: 20 Mar 2026 Price found 27 Jan 2026, 11:57
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