DUB

£58 Find Cheap Flights from Portsmouth to Dublin

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 Dublin departing on 7/5. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£99
Typical prices: £185-£111
Aer Lingus
Mon 27/4Sun 10/5
SOU - DUB • Direct
Cheapest one-way flight
£58
Typical prices: £81-£143
Aer Lingus
Thu 7/5
SOU - DUB • Direct
Direct flights
You can fly direct with Ryanair, Norwegian, and others. Average duration is 0
Direct flights
Direct flights
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Portsmouth to Dublin

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portsmouth to Dublin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portsmouth to Dublin

Mon, 27 Apr - Sun, 10 May
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
Aer Lingus Logo
06:55 - 08:35
DUB
-
SOU
1h 40mdirect
£99Aer Lingus
Thu, 30 Apr - Mon, 4 May
Aer Lingus Logo
17:20 - 18:55
SOU
-
DUB
1h 35mdirect
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
£102Aer Lingus
Sat, 25 Apr - Wed, 29 Apr
Multiple Airlines Logo
07:50 - 12:10
SOU
-
DUB
4h 20m
1 stop
Multiple Airlines Logo
06:20 - 12:00
DUB
-
SOU
5h 40m
1 stop
£102Multiple Airlines
Fri, 15 May - Fri, 22 May
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
£103Aer Lingus
Wed, 13 May - Wed, 20 May
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
Aer Lingus Logo
06:25 - 08:05
DUB
-
SOU
1h 40mdirect
£104Aer Lingus
Mon, 13 Apr - Wed, 15 Apr
Multiple Airlines Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
Multiple Airlines Logo
19:30 - 08:35
DUB
-
SOU
13h 05m
1 stop
£105Multiple Airlines
Thu, 14 May - Thu, 21 May
Aer Lingus Logo
09:20 - 11:00
SOU
-
DUB
1h 40mdirect
Aer Lingus Logo
15:10 - 16:50
DUB
-
SOU
1h 40mdirect
£105Aer Lingus
Thu, 14 May - Thu, 21 May
Aer Lingus Logo
17:20 - 18:55
SOU
-
DUB
1h 35mdirect
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
£107Aer Lingus
Wed, 13 May - Wed, 20 May
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
Aer Lingus Logo
06:25 - 08:05
DUB
-
SOU
1h 40mdirect
£108Aer Lingus
Sat, 18 Apr - Sun, 19 Apr
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
Aer Lingus Logo
06:55 - 08:35
DUB
-
SOU
1h 40mdirect
£108Aer Lingus
Useful Info

Good to know - Cheap tickets from Portsmouth to Dublin

Low seasonJanuary
Cheapest flight£58
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flight from Southampton to Dublin

When to book flights from Portsmouth to Dublin

Are your dates flexible? Find out the best times to travel from Portsmouth to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking flights from Portsmouth to Dublin

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

    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 Dublin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin 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 Dublin?

    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 Dublin 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 Dublin?

    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 Dublin from Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines flying from Portsmouth to Dublin

 
Need help choosing which airline to fly with from Portsmouth to Dublin? 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.
7.7
KLMOverall score based on 1485 reviews
7.8Boarding
7.3Food
7.1Entertainment
7.6Comfort
8.4Crew
Airline reviews

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

10.0 Excellentsmit, Mar 2026
BLR - AMS
Read more KLM reviews

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

It was really nice journey i personally recommend klm flight

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

The check in process at the front desk felt slow and it was frustrating that we could not check in online. Everything about the actual flight was great, including very kind flight attendants and a nice larger bathroom. Only thing is that it was very cold in the plane!

I flew economy class. Seats were very good and the crew was excellent

I had a great experience. I would definitely use them again

The pre-check (passport control) for all US flights from Dublin airport is brilliant, meaning these flights come into the domestic airport in the US - it was so quick and easy getting to my hotel once we landed. The plane itself was great, staff were lovely and food was fine.

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

One of the best flight experience I have had in along time. Would fly with them again.

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

I didn't eat any food so can't comment on that. The prices on the plane are extortionate (as are all prices on planes). Everything else was seemless and a great experience

I need assistance and I could not fault it at all. I suffer anxiety and I was always put at ease by assistance staff, and the banter was good. On board the staff was so very nice and kind and showed empathy. Thank you to them. It was my first time travelling since I lost my husband and was so grateful to them.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Great flight just took some time to board even when lining up early for the flight, even taking off took longer then expected.

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

On time arrival but the aircraft had seen better days and needed a deep clean.

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

food options were terrible. for a 10-hour flight, there should be 2 decent meals. Also, flight attendants should come around with drinks more than just at the meals.

Smooth flight. The seats were comfortable but the reclining mechanism didn't work very well. My wife's seat required the flight attendant to push the seat forward while she pushed the button. The leg support didn't want to return to its home under the seat. I ordered the diabetic meal which was full of carbs. It was low in sugar but carbs turn into sugar so was it really diabetic? Overall the flight was pleasant, long but pleasant.

Crew were nice, food was good. Boarding was horrendous. We were driven around the airport in a bus forced to climb a long flight of very steep stairs with no adequate handrails to board the plane . In many many years of flying to the US I have never been required to do this . There was no assistance for those needing help getting up the stairs to the plane. A fellow passenger helped me. No idea how other elderly, physically limited passengers or those with young children managed . It was a full flight with crowds trying to get up the stairs. It was an accident waiting to happen.

Food options limited and quality wasn’t very good. I was I was in premium economy and the people in front of me pushed their seats back to fully reclined position which made it difficult for me. My seat wouldn’t recline at all. I suggest that BA restrict the recliner more. Also, the audio in my headset didn’t work unless I held it in all the time. Entertainment choices were good. Customer services is excellent. Thank you to BA team.

Horrible, the plane is just old and junky...Filthy restroom, seat was as hard as rock. The food, mystery side dish, inedible..geez..just Horrible. Never flying BA again

Club Europe is always lovely. I really enjoy everything about it. One thing that has changed in recent years though, is the swap to Prosecco from Champagne in the lounges. This is really disappointing. I really don’t like Prosecco, and always looked forward to a lovely glass of champagne in the lounge. Is it possible to change back? It does make the whole experience a little more of a luxury experience.

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

You will pay for everything and feels like the airplane is old

The luggage problem I previously mentioned was actually this flight

Everything you need to know for your flight from Portsmouth to Dublin

Information on your arrival and departure airports