- Must visit
Mary Rose Museum
World-class museum housing Henry VIII's raised flagship. See the preserved Tudor warship and immersive galleries on life aboard.
Flights from Dublin to Portsmouth depart on average 107 times per day, taking around 2h 34m. Cheap flight tickets for this journey start at $24 if you book in advance.
There are 59 flights per day. The earliest flight runs at 00:55, the last at 23:30. The fastest flight covers the 280 miles (451 km) distance in 1h 15m. October is the cheapest month to fly.
Distance 280 miles (451 km) |
Average flight duration 2h 34m |
Cheapest ticket price $24 |
Flights per day 107 |
Direct flights 59 |
Fastest flight 1h 15m |
First flight 12:55 AM |
Last flight 11:30 PM |
Cheapest Month Oct |
Cheapest Day Tue |
High Season Oct - Dec |
Low Season Jan - Mar |
Best time to book 5 days |
Cheapest price on Sep 20
$105
Average ticket price on Sep 20
$105
Fastest journey on Sep 20
1 h 25 m
Average journey duration on Sep 20
1 h 25 m
Flights on Sep 20
1
Distance
451 km
The best way to find a cheap flight ticket from Dublin to Portsmouth is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Dublin to Portsmouth will cost around $105 if you buy it on the day, but the cheapest tickets can be found for only $105.
On Sun, Sep 20, we found 1 flights from Dublin to Portsmouth, including 1 direct services.
On Sun, Sep 20 the direct flights cover the 451 km distance in an average of 1 h 25 m but if you time it right, some flights will get you there in just 1 h 25 m .
On Sun, Sep 20 the longest flights will take 1 h 25 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.


The table below shows live departures for Dublin to Portsmouth flights for today, Saturday, September 19. You can also manually refresh the results below to see updated flight journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 7:40 PM Dublin | 1h25 | 9:05 PM Portsmouth | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Discover the best of Portsmouth — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Portsmouth trip today.
World-class museum housing Henry VIII's raised flagship. See the preserved Tudor warship and immersive galleries on life aboard.
Museum dedicated to HMS Victory and Nelson's navy. Learn about the Battle of Trafalgar and life in the age of sail.
Historic ironclad from 1860 that changed naval warfare. Explore decks, engine spaces and displays in the Historic Dockyard.
Historic harbourfront quarter with cobbled lanes, old pubs, sea walls and major naval attractions. Ideal for first-time visitors on foot.
Atmospheric old quarter with narrow streets, Georgian houses and waterfront views. Great for history, churches and a quieter local feel.
Lively seafront district known for beach walks, gardens, castle and independent venues. A classic area for promenade views and relaxation.
A Portsmouth classic of battered cod or haddock with chips, tied to the city’s long naval and seafaring tradition and best eaten fresh by the waterfront.
Fresh crab landed on the south coast, often served simply in sandwiches or salads. It reflects Portsmouth’s harbour access and strong seafood culture.
Portsmouth sits by rich oyster waters, and oysters are a traditional local treat served raw or dressed, prized for their fresh, briny flavour.
Refined fine dining in Southsea known for modern British tasting menus, polished service, and a special-occasion atmosphere.
Lively Southsea venue famous for fresh seafood and shellfish, offering a casual setting popular with locals and visitors.
Historic waterside pub in Old Portsmouth serving cask ales and classic British dishes with harbour views and traditional character.
Moderate for the UK. Hotels often cost less than London, while dining and local transit are mid-range for a coastal city.
Tipping is optional. In restaurants, 10-12.5% is common if service is not included. Round up taxi fares. Cafes usually do not expect tips, but small change is appreciated.
Find answers to the most common questions about traveling from Dublin to Portsmouth by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Portsmouth, this guide helps you travel smarter and with confidence.

Most Dublin to Portsmouth flights use the Dublin Airport to London Heathrow Airport airport pair. Use this guide to compare Dublin and Portsmouth airports on this route, check city-centre transport, alongside checking practicalities like airport facilities and services.
Dublin Airport is 3 km from Dublin city centre. Public transport options include:
Dublin Airport has practical services for this route, including Wifi, Shopping, Parking, ATM, Taxis, Accessibility, WC, Shower, Lounge, and Lost and Found Office.
Free Wi-Fi available throughout the airport. ATMs are located in both terminals.
Lost and found is available at the station.
Available at Dublin Airport: Parking, Taxis, WC.
Accessibility facilities are available at Dublin Airport: Ramps, assistance.
Here are some other resources that might have the information you need