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Find cheap flights from Portsmouth to Ireland from £34

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Ireland departing on 31/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 16/6
Sun 23/6

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Good to know - Cheap tickets from Portsmouth to Ireland

Low season

January

High season

August

Cheapest flight

£34
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly and prices are also 1% lower 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.

See more FAQs

Top 5 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.
8.0
Eastern AirwaysOverall score based on 14 reviews
8.2Comfort
9.0Crew
8.0Boarding
7.5Food
6.7Entertainment
Airline reviews

The flight was excellent and we appreciate that they ran the flight even though only 9 of us were on board!

10.0 ExcellentAnonymous, Aug 2023SOU - ORY
Read more about Eastern Airways reviews

The flight was excellent and we appreciate that they ran the flight even though only 9 of us were on board!

Excellent round trip from London Gatwick to Newquay Cornwall! Personable staff and crew, bags made it, flights on time. For me it was 5 stars.

For a small aircraft the choice of food and drinks was excellent compared to other ATR 72 operators. Checked in baggage as standard means easy boarding and disembarking for all.

I shall never book a budget airline flight ever again. Saturday morning flight to Belfast cancelled, rescheduled for following day, arriving 25 minutes before scheduled departure flight. I made the mistake of buying a non-flexible, non-refundable ticket options were so much more expensive. Alternative options offered by KAYAK did not come close in any way to my original booking; My first and last attempt to book a flight through Kayak.

Every flight on this airline is delayed, generally upto 2 hours for an internal flight. Very poor and absolute logistical disaster.

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

The flight was delayed for 2 hrs. Because they didn’t have a crew to fly. And it is not a first time for klm to do that. Last time they cancelled my filght and rebooked me 3 days later. Not reliable airline

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

The worst airline. Cancelled flight 30 min before boarding and rebooked on flight after 3 days.

It was nice to be on a legacy airline, people try at least.

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I was pleasantly surprised - it has been awhile since I traveled with them - other than being delayed leaving Malaga everything ran very smoothly- yes I would travel with aer Lingus again and yes I would recommended

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Flight staff very friendly and helpful where possible. Late flight and travelling with young child, cabin lights remained on for the duration of the flight which was a little disappointing considering the time of the flight. Overall very happy to travel with Aer Lingus.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

Very good, everything went straight forward, boarding, during the flight, landing and all on time Well done

flight delayed, no information given until late on, Ryanair app said "on time" until 5 minutes before expected departure time, crew rushed us to board, when it was already 3 hours late

I got denied boarding bevause they said they "ran out of seats on a plane"

Speakers were blaring. It's like being in a Moroccan market and you keep getting shouted at with what's for sale

We missed the flight due to very slow security control and lack of last call announcement. We only found out at the gate that the gate is closed. Altogether 14 or 15 people missed the flight FR4500 from Cologne to Dublin.

Everything went according to plan. Check in, boarding etc all were very efficient.

What can you say Ryanair get you there,no frills Not so cheap anymore ..... but what is now days! Would use again as always. Good flight times for us.

Very unpleasant staff, disgusting service, ignoring requests, refusal to help

Late again rude staff at gate bullying passengers made us stand in the cold 3degrees for 40 mins before they let us board

The usual average Ryanair flight, but we landed 20 min before due time, which was very good.

Boarding good. Seats uncomfortable when lie flat. Food was awful. Tasted stale and chicken was dry. No live tv or flight map. Had to pay for internet.

Poor technical details on this plane. 1) There was no WiFi on an 8 hour long-haul flight. So no work could be done. That's below the standard expected for airlines these days. 2) The power outlet at my seat was busted and not working. 3) The headphone jack was loose and I had to keep adjusting my headphones to get good reception, or when it slipped out. - The flight was delayed to due mechanics. Sometimes this can't be avoided, I understand, and it's a big inconvenience to arrive that much later when traveling across time zones (then arriving at 4am from the prior time zone). - Also unique to this flight, the northern lights were visible on the right side of the aircraft, but I only found out after we landed (b/c again no wifi). I understand there are considerations about people being out of their seats to look, but I feel extremely disappointed and resentful that I wasn't told so that I could have a chance to look at this probably once-in-a-lifetime cosmic event from a view in the sky. - Flight crew was otherwise friendly and helpful.

Our flight was delayed by over 6 hours. We then had to deplane, stay overnight in a hotel then fly out the next day, 23 hours late.

I would have preferred something lighter for the second meal. Maybe a small sandwich .

They cancelled our flight the morning of departure at 4:30am.

Flight bumpy but good. 1 hr 20 mins for luggage not so good.

We were told to check our bags at the last minute, and the communication was poor.

Lost our luggage in Heathrow. Showed up 3 days into a 7 day vacation. Very inconvenient and disappointing!!

My luggage never arrived to Zurich. They can't confirm when it will arrive

Late again. 3 out of 4 late. One cancelled flight and one lost bag.

Book cheap flights from Portsmouth to Ireland

Cheapest flights to Ireland from Portsmouth found in 2024

Recent return flight deals

31/5Fri
directAer Lingus
1h 35mSOU-DUB
5/6Wed
directAer Lingus
1h 50mDUB-SOU
£64
12/9Thu
directAer Lingus
1h 35mSOU-DUB
17/9Tue
directAer Lingus
1h 50mDUB-SOU
£80
29/5Wed
directAer Lingus
1h 35mSOU-DUB
30/5Thu
directAer Lingus
1h 50mDUB-SOU
£93
14/8Wed
directAer Lingus
1h 35mSOU-DUB
18/8Sun
directAer Lingus
1h 50mDUB-SOU
£105
14/8Wed
1 stop
9h 05mSOU-DUB
18/8Sun
direct
1h 50mDUB-SOU
£114
31/5Fri
direct
1h 35mSOU-DUB
5/6Wed
2 stops
16h 30mDUB-SOU
£128
31/5Fri
1 stopKLM
5h 05mSOU-DUB
3/6Mon
1 stopKLM
10h 15mDUB-SOU
£137
1/6Sat
1 stopKLM
5h 05mSOU-DUB
3/6Mon
1 stopKLM
10h 15mDUB-SOU
£141
4/10Fri
directBritish Airways
1h 35mSOU-DUB
6/10Sun
directBritish Airways
1h 50mDUB-SOU
£218
21/6Fri
directBritish Airways
1h 35mSOU-DUB
24/6Mon
directBritish Airways
1h 50mDUB-SOU
£293

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Recent one-way flight deals

31/5Fri
directAer Lingus
1h 35mSOU-DUB
£34
31/5Fri
directAer Lingus
1h 35mSOU-DUB
£36
18/8Sun
1 stop
23h 35mSOU-DUB
£66
18/6Tue
1 stop
27h 10mSOU-DUB
£69
23/9Mon
1 stopKLM
5h 05mSOU-DUB
£85
26/5Sun
2 stopsKLM
44h 10mSOU-ORK
£110
10/7Wed
directBritish Airways
1h 35mSOU-DUB
£114
1/8Thu
directBritish Airways
1h 35mSOU-DUB
£143
10/7Wed
1 stopBlue Islands
18h 05mSOU-DUB
£201
22/5Wed
1 stopBlue Islands
22h 55mSOU-DUB
£271

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Last minute flights from Portsmouth to Ireland

Last minute flight, train and bus deals

18/5Sat
directAer Lingus
1h 40mSOU-DUB
18/5Sat
directAer Lingus
1h 35mDUB-SOU
£253
18/5Sat
direct
1h 35mSOU-DUB
18/5Sat
multi-stop
22h 25mDUB-SOU
£320
18/5Sat
direct
1h 40mSOU-DUB
18/5Sat
multi-stop
20h 45mDUB-SOU
£328
18/5Sat
directBritish Airways
1h 35mSOU-DUB
19/5Sun
multi-stopBritish Airways
5h 20mDUB-SOU
£413
18/5Sat
multi-stop
4h 40mSOU-DUB
18/5Sat
multi-stop
17h 55mDUB-SOU
£470
18/5Sat
multi-stopBritish Airways
8h 25mSOU-DUB
19/5Sun
multi-stopBritish Airways
5h 20mDUB-SOU
£570
18/5Sat
multi-stopBritish Airways
4h 40mSOU-DUB
19/5Sun
multi-stopBritish Airways
5h 20mDUB-SOU
£608

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Flights to Ireland

Return flight deals:

Ireland - Portsmouth

Cabin classes:

£178
£194
£184
£17