Journey information
Overview: Dublin to Portsmouth flight
Flights from Dublin to Portsmouth depart on average 86 times per day, taking around 1h 32m. Cheap flight tickets for this journey start at £23 if you book in advance.
There are 45 flights per day. The earliest flight runs at 00:55, the last at 23:30. The fastest flight covers the 451 km distance in 1h 10m. August is the cheapest month to fly.
Distance 451 km |
Average flight duration 1h 32m |
Cheapest ticket price £23 |
Flights per day 86 |
Direct flights 45 |
Fastest flight 1h 10m |
Cheapest month to travel August |
First flight 00:55 |
Last flight 23:30 |
The cheapest and fastest flights from Dublin to Portsmouth
Cheapest price
£76
Average price
£76
Fastest journey
1 h 20 m
Average duration
1 h 20 m
Flights per day
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 travelling at rush hour.
The average ticket from Dublin to Portsmouth will cost around £76 if you buy it on the day, but you can find cheap flight tickets today for only £76.
Of the 1 flights that leave Dublin for Portsmouth every day 1 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
These direct flights cover the 451 km distance in an average of 1 h 20 m but if you time it right, some flights will get you there in just 1 h 20 m .
The slowest flights will take 1 h 20 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.


Live departures
Dublin to Portsmouth flight times
The table below shows live departures for Dublin to Portsmouth flights for tomorrow, Monday 15 December. You can also manually refresh the results below to see updated flight journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
![]() | 05:30 Dublin | 1h20 | 06:50 Portsmouth | 0 changesdirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Dublin to Portsmouth by flight
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.
15 Dec
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21 Dec
Airlines: Ryanair, Aer Lingus, British Airways from Dublin to PortsmouthFind the best flights between Dublin to Portsmouth with Omio's travel partners Ryanair, Aer Lingus, British Airways from £23. We can find you the best deals, schedules and tickets when comparing and booking the best trip.
British Airways
Aer Lingus
Ryanair
FAQs: Dublin to Portsmouth flights
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.

popular airports
Important Stations and Airports in Dublin and Portsmouth
- Free Wi-Fi available throughout the airport.
- Shops in both terminals, includes WHSmith and The Loop.
- Short-term and long-term parking available, short-term from 3€ per hour.
- Available outside the terminal.
- Ramps, assistance.
- Available throughout the airport.
- Yes
- Several lounges including the DAA Executive Lounge.
- Located in both terminals.
- Bus: 16, 41, 102, 747
- Train: NA
- Metro: NA
Most popular flights from Dublin
More options for your journey from Dublin to Portsmouth
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