£64 Find Cheap Flights from Portsmouth to Ireland

1 adult
1 adult, Economy

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Good to know - Cheap tickets from Portsmouth to Ireland

Low seasonJanuary
High seasonAugust
Cheapest flight£37
Best time to beat the crowds (34% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flight from Southampton to Dublin

FAQs for booking flights from Portsmouth to Ireland

  • How does KAYAK find such low prices on flights from Portsmouth to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portsmouth to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portsmouth to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ireland from Portsmouth is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portsmouth to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Ireland with an airline and back to Portsmouth with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portsmouth to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ireland from Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 3 airlines serving from Portsmouth to Ireland

 
Need help choosing which airline to fly with from Portsmouth to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1358 reviews
7.2Food
7.8Boarding
7.7Comfort
7.1Entertainment
8.4Crew
Airline reviews

Klm start boarding while somw air issue in the plan

8.0 ExcellentA, Jun 2025AMS - YYZ
Read more KLM reviews

Klm start boarding while somw air issue in the plan

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

I didn’t have food and they don’t include entertainment. Not much leg room at all. Staff were great.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

Business class was nothing more than Economy with middle seat empty. Uncomfortable seat and leg room. A mom behind me had a 18 month/2 yr old on her lap, who had his feet on my back all the time- while middle seat remained empty. Pretty much not worth the fare. Very disappointed.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

charging port did not work, no entertainment system. Other than that the flight was good and safe.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

When Stephen arrived with our wheel chairs - we were in excellent hands! He was such great help with getting our rental car and then reporting our missing luggage. When you are exhausted from traveling for too many hours, he was just what we needed to navigate everything! Give that guy a raise!

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

Gate information deliberately delayed to only one hour B4 flight, lack of info finding gate.

Book cheap flights from Portsmouth to Ireland

Cheapest flights to Ireland from Portsmouth found in 2025

Recent return flight deals

9/7Wed
directAer Lingus
1h 35mSOU-DUB
16/7Wed
directAer Lingus
1h 40mDUB-SOU
£64
24/7Thu
directAer Lingus
1h 35mSOU-DUB
29/7Tue
directAer Lingus
1h 40mDUB-SOU
£81
24/7Thu
direct
1h 35mSOU-DUB
29/7Tue
1 stop
16h 00mDUB-SOU
£113
9/7Wed
1 stop
22h 20mSOU-DUB
16/7Wed
direct
1h 40mDUB-SOU
£131
2/7Wed
1 stopKLM
7h 20mSOU-DUB
7/7Mon
1 stopKLM
12h 05mDUB-SOU
£155
24/7Thu
1 stopKLM
10h 55mSOU-DUB
28/7Mon
1 stopKLM
12h 05mDUB-SOU
£156
25/7Fri
directBritish Airways
1h 35mSOU-DUB
28/7Mon
directBritish Airways
1h 40mDUB-SOU
£219
2/7Wed
directBritish Airways
1h 35mSOU-DUB
3/7Thu
directBritish Airways
1h 40mDUB-SOU
£220
24/7Thu
1 stopBlue Islands
17h 00mSOU-DUB
28/7Mon
1 stopBlue Islands
19h 05mDUB-SOU
£531
24/7Thu
1 stopBlue Islands
17h 00mSOU-DUB
28/7Mon
1 stopBlue Islands
19h 05mDUB-SOU
£531

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Recent one-way flight deals

29/7Tue
directAer Lingus
1h 35mSOU-DUB
£37
10/9Wed
directAer Lingus
1h 35mSOU-DUB
£40
9/9Tue
1 stop
9h 05mSOU-DUB
£71
8/9Mon
1 stop
22h 45mSOU-DUB
£85
5/8Tue
1 stopKLM
4h 00mSOU-DUB
£96
14/7Mon
1 stopKLM
13h 55mSOU-DUB
£102
3/8Sun
directBritish Airways
1h 35mSOU-DUB
£114
10/9Wed
directBritish Airways
1h 40mSOU-DUB
£115
1/9Mon
1 stopAurigny Air
16h 10mSOU-DUB
£140
1/9Mon
1 stopAurigny Air
16h 10mSOU-DUB
£141

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Last minute flights from Portsmouth to Ireland

Last minute flight, train and bus deals

16/6Mon
directAer Lingus
1h 35mSOU-DUB
17/6Tue
directAer Lingus
1h 40mDUB-SOU
£142
16/6Mon
directAer Lingus
1h 35mSOU-DUB
18/6Wed
directAer Lingus
1h 40mDUB-SOU
£143
16/6Mon
multi-stop
11h 25mSOU-DUB
18/6Wed
direct
1h 40mDUB-SOU
£154
15/6Sun
directAer Lingus
1h 40mSOU-DUB
18/6Wed
directAer Lingus
1h 40mDUB-SOU
£155
13/6Fri
directAer Lingus
1h 35mSOU-DUB
15/6Sun
directAer Lingus
1h 40mDUB-SOU
£159
16/6Mon
multi-stop
28h 10mSOU-DUB
18/6Wed
direct
1h 40mDUB-SOU
£162
13/6Fri
directBritish Airways
1h 35mSOU-DUB
15/6Sun
directBritish Airways
1h 40mDUB-SOU
£249
17/6Tue
multi-stopKLM
10h 55mSOU-DUB
18/6Wed
multi-stopKLM
12h 00mDUB-SOU
£296
14/6Sat
directBritish Airways
1h 40mSOU-DUB
16/6Mon
directBritish Airways
1h 40mDUB-SOU
£326
16/6Mon
multi-stopKLM
7h 20mSOU-DUB
18/6Wed
multi-stopKLM
23h 50mDUB-SOU
£401

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Everything you need to know for your flight to Ireland

Cabin class types available on flights to Portsmouth

Cabin classes available on flights to Portsmouth. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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