Question 1

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

Accepted Answer

Travellers seeking maximum savings on their Portsmouth to Ireland flight should consider departing on Monday at midday when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 2

Weekly flight availability from Portsmouth to Ireland

Accepted Answer

The most flights from P0R to IE0 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 Ireland 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 Ireland when rainfall is around 49.0 mm.

Question 4

E

Accepted Answer

If weather is an important factor for your trip to Ireland, 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 Ireland?

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 Ireland.

Question 6

What are the most reliable airlines from Portsmouth to Ireland?

Accepted Answer

Consider Air Canada (88%), Aer Lingus (80%) or Qatar Airways (80%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Ireland.

Question 7

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

Accepted Answer

It’s typically best to fly out from Portsmouth to Ireland in the afternoon. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.

Question 8

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

Accepted Answer

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

Question 9

How can I find direct flights from Portsmouth to Ireland?

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 Ireland.

Question 10

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

Accepted Answer

Yes. Cheapflights offers flight deals from Portsmouth to Ireland 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 11

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

Accepted Answer

When you search for this flight from Portsmouth to Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Question 12

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

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Ireland 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.

Question 13

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

Accepted Answer

Yes! Cheapflights helps users easily find flights from Portsmouth to Ireland with no change fees.

Question 14

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

Accepted Answer

Of course! You can now track prices for flights from Portsmouth to Ireland 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	December
Cheapest in	January
Average price	£85

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£29	Average£72	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
British Airways	Cheapest£70	Average£187	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£83	Average£150	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Cheap flights from Portsmouth to Ireland

Find flight deals from Portsmouth to Ireland

Popular in

Cheapest in

Average price

Cheapflights Insights

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

It’s typically best to fly out from Portsmouth to Ireland in the afternoon. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.

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

Travellers seeking maximum savings on their Portsmouth to Ireland flight should consider departing on Monday at midday when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Ireland

The most flights from P0R to IE0 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 Ireland

See what other customers who have flown with Aer Lingus and British Airways from Portsmouth to Ireland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the most reliable airlines from Portsmouth to Ireland?

What are the cheapest flights from Portsmouth to Ireland?

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

How can I find direct flights from Portsmouth to Ireland?

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

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 Ireland

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

Complete your trip

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

Direct flights to

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

Search flights from Portsmouth to Ireland by cabin class

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

Portsmouth and Ireland flights

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

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Ireland

Find the right flight back to Portsmouth after your stay in Ireland

Portsmouth to Ireland flights

Consider these flights travelling from Portsmouth to Ireland.

Fly to Ireland regions

Consider these flights travelling to Ireland regions.

Top 3 airlines flying from Portsmouth to Ireland

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart