Question 1

What is the cheapest day to fly from Portsmouth to Dublin?

Accepted Answer

Travellers seeking maximum savings on their Portsmouth to Dublin flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 2

Weekly flight availability from Portsmouth to Dublin

Accepted Answer

The most flights from P0R to DUB are scheduled on a Friday (67 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (37 on average).

Question 3

E

Accepted Answer

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Dublin when rainfall is around 49.0 mm.

Question 4

E

Accepted Answer

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Question 5

What are the cheapest flights from Portsmouth to Dublin?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £54. While the most popular route (Southampton Eastleigh - Dublin) can be booked for £103 on average, our data indicates £502 when flying from Portsmouth to Dublin.

Question 6

What are the most reliable airlines from Portsmouth to Dublin?

Accepted Answer

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portsmouth to Dublin on time: Air Canada (88%), Aer Lingus (80%), Qatar Airways (80%).

Question 7

What is the cheapest time of day to fly from P0R to DUB?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Dublin in the afternoon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the morning.

Question 8

What airport do you fly into for flights to Dublin from Portsmouth?

Accepted Answer

If you book a flight to Dublin from Portsmouth, you will be flying to Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 6 flights from Portsmouth to Dublin per day from 3 different airlines.

Question 9

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

Accepted Answer

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

Question 10

How can I find direct flights from Portsmouth to Dublin?

Accepted Answer

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

Question 11

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

Accepted Answer

Yes. Cheapflights offers flight deals from Portsmouth to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 12

How does Cheapflights help users find flights from Portsmouth to Dublin?

Accepted Answer

Cheapflights makes it easy to find Portsmouth to Dublin 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.

Question 13

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Dublin?

Accepted Answer

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portsmouth to Dublin.

Question 14

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

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Dublin flexibly with Cheapflights today.

Question 15

Can Cheapflights notify me if prices for flights from Portsmouth to Dublin become cheaper?

Accepted Answer

Of course! You can now track prices for flights from Portsmouth to Dublin and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Popular in	June
Cheapest in	January
Average price	£141

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£32	Average£70	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
British Airways	Cheapest£70	Average£176	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£98	Average£145	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Cheap flights from Portsmouth to Dublin

Find flight deals from Portsmouth to Dublin

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from P0R to DUB?

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Dublin in the afternoon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Portsmouth to Dublin?

Travellers seeking maximum savings on their Portsmouth to Dublin flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Dublin

The most flights from P0R to DUB are scheduled on a Friday (67 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (37 on average).

Reviews of airlines servicing Dublin

Read reviews from past customers who have flown with Aer Lingus and British Airways from Portsmouth to Dublin. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Dublin from Portsmouth?

What are the most reliable airlines from Portsmouth to Dublin?

What are the cheapest flights from Portsmouth to Dublin?

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

How can I find direct flights from Portsmouth to Dublin?

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

Travelling to a place near Dublin?

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 Portsmouth to Dublin

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

Complete your trip

Complete your trip to Dublin by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Ireland

Book a non-stop flight to one of these other cities located in Ireland.

Other flights to Dublin

Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 October 2026.

Search flights from Portsmouth to Dublin by cabin class

Find flights from Portsmouth to Dublin, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portsmouth and Dublin flights

Browse other Portsmouth and Dublin flight options. Last updated on 11 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Portsmouth to Dublin flights

Consider these flights travelling from Portsmouth to Dublin.

Top 3 airlines flying from Portsmouth to Dublin

Fly with Cheapflights

How does Cheapflights help users find flights from Portsmouth to Dublin?

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Dublin?

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

Can Cheapflights notify me if prices for flights from Portsmouth to Dublin become cheaper?

100% Free

Book with Flexibility

Travel Smart