Cheap flights from Dublin to Portsmouth, New Hampshire
Cheap flight deals from Dublin to Portsmouth
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Portsmouth (PSM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 July 2025.
Popular in | July |
|---|---|
Cheapest in | February |
Average price | £547 |
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.
Related info for your journey
Find useful and relevant information for your journey from Dublin to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Dublin to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Dublin to Portsmouth?
Cheapflights makes it easy to find Dublin to Portsmouth flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Dublin to Portsmouth?
Cheapflights simply makes it quick and affordable to book flights from Dublin to Portsmouth by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Dublin to Portsmouth with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Portsmouth flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Dublin to Portsmouth become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!