£56 Find Cheap Flights from Dublin to Portsmouth

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dublin to Portsmouth departing on 2/6. 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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Cheap Flight Deals from Dublin to Portsmouth (DUB-SOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dublin to Portsmouth 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 Dublin to Portsmouth

KAYAK's recommended return flight deals from the most popular airlines that fly from Dublin to Portsmouth.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Aer Lingus Logo
07:30 - 09:10DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
£56Aer Lingus
Find Deal
Mon, 2 Jun - Thu, 5 Jun
Aer Lingus Logo
07:30 - 09:10DUB-SOU
1h 40mdirect
Aer Lingus Logo
09:10 - 10:50SOU-DUB
1h 40mdirect
£59Aer Lingus
Find Deal
Mon, 2 Jun - Wed, 4 Jun
 Logo
07:30 - 09:10DUB-SOU
1h 40mdirect
 Logo
09:00 - 18:30SOU-DUB
9h 30m1 stop
Mon, 2 Jun - Wed, 4 Jun
 Logo
10:20 - 11:45DUB-SOU
25h 25m1 stop
 Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
Mon, 2 Jun - Thu, 5 Jun
KLM Logo
20:45 - 08:45DUB-SOU
12h 00m1 stop
KLM Logo
09:20 - 16:40SOU-DUB
7h 20m1 stop
£177KLM
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Thu, 22 May - Thu, 29 May
KLM Logo
20:45 - 08:45DUB-SOU
12h 00m1 stop
KLM Logo
18:25 - 22:25SOU-DUB
4h 00m1 stop
£188KLM
Find Deal
Thu, 12 Jun - Sun, 15 Jun
British Airways Logo
14:45 - 16:35DUB-SOU
1h 50mdirect
British Airways Logo
17:15 - 18:50SOU-DUB
1h 35mdirect
£234British Airways
Find Deal
Thu, 12 Jun - Mon, 16 Jun
British Airways Logo
17:50 - 19:30DUB-SOU
1h 40mdirect
British Airways Logo
09:40 - 11:20SOU-DUB
1h 40mdirect
£235British Airways
Find Deal
Thu, 22 May - Thu, 29 May
Aurigny Air Logo
12:45 - 07:30DUB-SOU
18h 45m1 stop
Aurigny Air Logo
08:00 - 12:00SOU-DUB
4h 00m1 stop
£327Aurigny Air
Find Deal
Tue, 17 Jun - Tue, 24 Jun
Aurigny Air Logo
12:45 - 07:30DUB-SOU
18h 45m1 stop
Aurigny Air Logo
10:00 - 13:35SOU-DUB
3h 35m1 stop
£334Aurigny Air
Find Deal
Tue, 17 Jun - Sun, 22 Jun

Good to know - Cheap tickets from Dublin to Portsmouth

Low season

February

High season

August

Cheapest flight

£56
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flight from Dublin to Southampton

When to book flights from Dublin to Portsmouth

Are your dates flexible? Find out the best times to travel from Dublin to Portsmouth 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 Dublin to Portsmouth

  • Which airports will I be using when flying from Dublin to Portsmouth?

    When flying out of Dublin you’ll be using Dublin. Portsmouth does not have its own airport so you’ll be flying into nearby Southampton Eastleigh airport, which is 14.7 mi away.

  • How long does a flight from Dublin to Portsmouth take?

    Direct flights cover the 268 miles separating Dublin and Portsmouth in about 1h 35m.

  • How many flights are there between Dublin and Portsmouth?

    5 direct flights run between Dublin and Portsmouth on a daily basis. On average, there are about 40 departures each week.

  • What’s the cheapest day of the week to fly between Dublin and Portsmouth?

    Consider leaving on a Monday and avoid Wednesdays if you're looking for the best rates. For your return to Dublin, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

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

    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 Dublin to Portsmouth.

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

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

    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 Portsmouth with an airline and back to Dublin with another airline.

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

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

  • Which airlines provide the cheapest flights from Dublin to Portsmouth?

    In the last 72 hours, the cheapest one-way ticket between Dublin and Portsmouth found on KAYAK was with Aer Lingus for £56. Aer Lingus offered a return connection from £56 and KLM from £177.

See more FAQs

Top tips for finding cheap flights from Dublin to Portsmouth

  • There is no airport in Portsmouth. Instead, you’ll be flying into Southampton Airport when flying between Dublin and Portsmouth.
  • The cheapest flight from Dublin to Portsmouth was found 34 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is December.
See more tips

Top airline flying from Dublin to Portsmouth

Need help choosing which airline to fly with from Dublin to Portsmouth? 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.
7.0
Aer LingusOverall score based on 1068 reviews
7.0Comfort
6.7Entertainment
7.2Boarding
7.9Crew
6.4Food
Airline reviews

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.

8.0 ExcellentAnonymous, Apr 2025DUB - LAX
Read more Aer Lingus reviews

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.

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

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.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

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.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

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.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

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

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