Cheap flights from Dublin to Portsmouth

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How to find the cheapest flight from
Dublin (DUB) to Portsmouth (PSM)

All the information you need to plan the best DUB to PSM flight in 2022: compare Dublin to Portsmouth flight prices with the expected peak season, weather and rainfall in Portsmouth.
What is the cheapest month to fly from Dublin to Portsmouth, New Hampshire?

The best pricing can be found in the month of March. Prices to Portsmouth, New Hampshire from Dublin average £341. You can even find prices in March for less than £341, as users have found deals to Portsmouth, New Hampshire from as low as £261. The month of July appears to be one of the more expensive times to travel to Portsmouth, New Hampshire from Dublin. Flying in the targeted month can save you up to 29%.

When is the cheapest time to fly from Dublin to Portsmouth, New Hampshire (DUB - PSM)?

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

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

To save up to 50% on this flight, we recommend booking at least 37 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Dublin to Portsmouth, New Hampshire from £385 1-2 weeks out and tickets from £501 for flights departing within the next 72 hours.

Related info for your journey

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

COVID Restrictions

View COVID Travel Restrictions for Portsmouth, NH

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

Information is based on travel restrictions from Dublin to Portsmouth Pease Intl

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

COVID-19 testing requirements
Visitors from Dublin must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Portsmouth Pease Intl.

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

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

Returning to Dublin 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 Dublin.

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

Hide COVID Travel Restrictions for Portsmouth, NH

Alternative routes for Dublin to Portsmouth

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

Destination information for Portsmouth

Things to know before you go - useful duration and weather info for your trip from Dublin to Portsmouth.
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Airports servicing Dublin

Airports servicing Portsmouth

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