DUB

£34 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 12/6. 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.
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Flights Deals

Cheap Flight Deals 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.

Recent return flight deals from Portsmouth to Dublin

KAYAK's recommended return flight deals from the most popular airlines that fly from Portsmouth to Dublin.
Discover the best prices for you by selecting your travel dates on KAYAK.
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
Aer Lingus Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
£63Aer Lingus
Find Deal
Tue, 10 Jun - Wed, 11 Jun
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
Aer Lingus Logo
07:30 - 09:10DUB-SOU
1h 40mdirect
£72Aer Lingus
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Thu, 12 Jun - Mon, 16 Jun
 Logo
09:00 - 18:30SOU-DUB
9h 30m1 stop
 Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
Wed, 4 Jun - Wed, 11 Jun
 Logo
12:25 - 18:30SOU-DUB
6h 05m1 stop
 Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
Tue, 10 Jun - Wed, 11 Jun
KLM Logo
09:20 - 16:40SOU-DUB
7h 20m1 stop
KLM Logo
08:55 - 17:00DUB-SOU
8h 05m1 stop
£155KLM
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Wed, 4 Jun - Wed, 11 Jun
KLM Logo
17:35 - 22:25SOU-DUB
4h 50m1 stop
KLM Logo
20:45 - 08:50DUB-SOU
12h 05m1 stop
£156KLM
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Thu, 19 Jun - Mon, 23 Jun
British Airways Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
British Airways Logo
06:35 - 08:15DUB-SOU
1h 40mdirect
£219British Airways
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Mon, 12 May - Tue, 13 May
British Airways Logo
09:10 - 10:50SOU-DUB
1h 40mdirect
British Airways Logo
17:50 - 19:30DUB-SOU
1h 40mdirect
£250British Airways
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Tue, 13 May - Tue, 13 May
Aurigny Air Logo
16:25 - 13:35SOU-DUB
21h 10m2 stops
Aurigny Air Logo
12:45 - 07:30DUB-SOU
18h 45m1 stop
£462Aurigny Air
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Sat, 16 Aug - Tue, 19 Aug
Aurigny Air Logo
08:00 - 12:00SOU-DUB
4h 00m1 stop
Aurigny Air Logo
14:20 - 10:30DUB-SOU
20h 10m2 stops
£562Aurigny Air
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Thu, 19 Jun - Sun, 22 Jun
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Good to know - Cheap tickets from Portsmouth to Dublin

Low season

January

High season

August

Cheapest flight

£34
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (3% 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.

Top 3 airlines serving 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.
7.8
KLMOverall score based on 1333 reviews
7.1Entertainment
7.8Boarding
7.2Food
8.4Crew
7.7Comfort
Airline reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

8.0 ExcellentShereen, Apr 2025AMS - YUL
Read more KLM reviews

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

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!

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.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

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

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

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.

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

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

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.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

When i booked my flight, my ticket shows that i have 2 pieces of luggage allowance. Once i got into the check in, i was informed that i needed to pay extra for my two suitcases, and was put into a very precarious situation, I had to pay close to £200 for my two suitcases and these were not extra burgages, I felt extremely disappointed. In case i never had the kind of money, it meant that i would have missed my flight

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

LCY airport is an amazing airport and I love the flight from LCY to FRA with BA. Efficient, easy, comfortable and great luggage allownace with BA. I iused to fly predominantley LH, but the service and price - benefit ratio of Lufthansa has deteriorated a lot over the last 5 years. Whereas BA keeps an excellent service level with friendly staff.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The airplane was old. Some things didn’t work out of middle seat was broken. The rest was OK.

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Very quick boarding. I was surprised we only got a small water and small thing of cookies, everything else was for purchase. No entertainment. Crew was excellent though.

Flight delayed in terms of boarding and Kayak was great in updating but the team on the groping at British Airways were really poor

A basic tea/ coffee and a snack could be provided especially for long distance flyers.

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