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Cheap flights from Dublin to Portsmouth, New Hampshire

DUB — PSM
2 Oct — 9 Oct1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Dublin to Portsmouth

Popular in

July

Cheapest in

February

Average price

£406
Highest demand for flights based on searches. 23% potential increase in price (£101 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Best time to book a flight from Dublin to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Dublin with our price prediction graph.
Estimated return price

Related info for your journey

  • Can I find deals for flights from Dublin to Portsmouth that include hotel bookings?

    Yes. In addition to deals on Dublin to Portsmouth flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Portsmouth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Portsmouth.

  • Can I find deals for business class flights from Dublin to Portsmouth?

    Yes. Cheapflights offers flight deals from Dublin 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.

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Alternative routes for Dublin to Portsmouth

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Can Cheapflights find flights from Dublin to Portsmouth with no change fees?

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