£62 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 16/7. 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

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Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dublin to Portsmouth

Wed, 16 Jul - Thu, 24 Jul
Aer Lingus Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
£62Aer Lingus
Find Deal
Wed, 2 Jul - Wed, 9 Jul
Aer Lingus Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
Aer Lingus Logo
09:10 - 10:50SOU-DUB
1h 40mdirect
£63Aer Lingus
Find Deal
Wed, 2 Jul - Wed, 9 Jul
Aer Lingus Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
Aer Lingus Logo
09:10 - 10:50SOU-DUB
1h 40mdirect
£63Aer Lingus
Find Deal
Wed, 23 Jul - Thu, 24 Jul
Aer Lingus Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
£66Aer Lingus
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Tue, 22 Jul - Tue, 29 Jul
Logo
14:05 - 10:20DUB-SOU
20h 15m1 stop
Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
£121
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Wed, 23 Jul - Thu, 24 Jul
Logo
06:50 - 10:20DUB-SOU
3h 30m1 stop
Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
£121
Find Deal
Wed, 16 Jul - Thu, 24 Jul
KLM Logo
20:45 - 08:45DUB-SOU
12h 00m1 stop
KLM Logo
09:20 - 20:15SOU-DUB
10h 55m1 stop
£171KLM
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Sun, 27 Jul - Sun, 3 Aug
KLM Logo
13:20 - 08:45DUB-SOU
19h 25m1 stop
KLM Logo
09:20 - 08:20SOU-DUB
23h 00m1 stop
£198KLM
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Tue, 24 Jun - Mon, 4 Aug
British Airways Logo
06:35 - 08:15DUB-SOU
1h 40mdirect
British Airways Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
£228British Airways
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Thu, 24 Jul - Mon, 28 Jul
British Airways Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
British Airways Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
£229British Airways
Find Deal
Useful Info

Good to know - Cheap tickets from Dublin to Portsmouth

Low seasonFebruary
High seasonJune
Cheapest flight£40
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (41% 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 40m.

  • 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 Wednesday and avoid Tuesdays if you're looking for the best rates. For your return to Dublin, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

  • 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 £40. Aer Lingus offered a return connection from £62 and KLM from £171.

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 47 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.

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.
7.1
Aer LingusOverall score based on 1117 reviews
6.8Entertainment
7.0Comfort
6.4Food
7.2Boarding
7.9Crew
Airline reviews

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.

10.0 ExcellentAnonymous, Jun 2025MAN - MCO
Read more Aer Lingus reviews

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.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

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.

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.

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

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

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