Cheap flights from Heathrow to Portsmouth

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How to find the cheapest flight from
Heathrow (LHR) to Portsmouth (PSM)

All the information you need to plan the best LHR to PSM flight in 2022: compare Heathrow to Portsmouth flight prices with the expected peak season, weather and rainfall in Portsmouth.
When is the cheapest time to fly from London Heathrow Airport to Portsmouth, New Hampshire (LHR - PSM)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Portsmouth, New Hampshire as you normally would.

How far in advance should I book a flight from London Heathrow Airport to Portsmouth, New Hampshire?

To save up to 29% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from London Heathrow Airport to Portsmouth, New Hampshire from £575 1-2 weeks out and tickets from £616 for flights departing within the next 72 hours.

What is the cheapest month to fly from London Heathrow Airport to Portsmouth, New Hampshire?

Our data shows that February tends to be the cheapest month to fly to Portsmouth, New Hampshire from London Heathrow Airport. Users have commonly found prices around £496 for the month, but tickets can be as low as £347. Due to multiple factors, prepare for potentially higher prices in July.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Portsmouth</span> flights.

Flight FAQs

From Heathrow to Portsmouth

What airport do you fly into for flights to Portsmouth from London Heathrow?

Portsmouth Pease Intl (PSM) is the airport you will fly into if you book a flight from London Heathrow to Portsmouth. You should not have trouble finding flights to Pease Intl from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Portsmouth airport from London Heathrow. It is only a 3.2 mi journey from Pease Intl (PSM) to Portsmouth’s city center.

COVID Restrictions

View COVID Travel Restrictions for Portsmouth, NH

Do I need a COVID test to fly to Portsmouth from Heathrow?

Information is based on travel restrictions from London Heathrow to Portsmouth Pease Intl

Most visitors from London Heathrow need to provide a negative COVID-19 test result and/or quarantine to enter Portsmouth Pease Intl.

COVID-19 testing requirements
Visitors from London Heathrow are not required to present a negative COVID-19 PCR test or antigen result upon entering Portsmouth Pease Intl.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Portsmouth Pease Intl.

Do I need a test to fly back to Heathrow from Portsmouth?

Returning to London Heathrow from Portsmouth Pease Intl

COVID-19 testing requirements
Visitors from Portsmouth Pease Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering London Heathrow.

Quarantine requirements
Visitors from Portsmouth Pease Intl are not required to quarantine after entering London Heathrow.

Hide COVID Travel Restrictions for Portsmouth, NH

Alternative routes for Heathrow to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
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