€52 Find Cheap Flights to Portsmouth – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Portsmouth departing on 30/9. 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
€111
Typical prices: €181-€266
Aer Lingus
Wed 22/7Wed 29/7
DUB - SOU • Direct
Cheapest one-way flight
€52
Typical prices: €52-€131
Aer Lingus
Wed 30/9
DUB - SOU • Direct
Arrival airport
You can’t fly directly to Portsmouth. It is served by Southampton (SOU), located 23.6 km from Portsmouth.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights to Portsmouth

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

Wed, 22 Jul - Wed, 29 Jul
Aer Lingus Logo
06:25 - 08:05
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€111Aer Lingus
Thu, 20 Aug - Thu, 27 Aug
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
17:20 - 18:55
SOU
-
DUB
1h 35mdirect
€114Aer Lingus
Thu, 23 Jul - Sun, 26 Jul
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
09:20 - 11:00
SOU
-
DUB
1h 40mdirect
€115Aer Lingus
Thu, 23 Jul - Tue, 28 Jul
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
17:20 - 18:55
SOU
-
DUB
1h 35mdirect
€116Aer Lingus
Mon, 17 Aug - Mon, 24 Aug
Aer Lingus Logo
17:50 - 19:30
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€117Aer Lingus
Thu, 23 Jul - Sun, 26 Jul
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
09:20 - 11:00
SOU
-
DUB
1h 40mdirect
€117Aer Lingus
Thu, 23 Jul - Sun, 26 Jul
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
09:20 - 11:00
SOU
-
DUB
1h 40mdirect
€118Aer Lingus
Tue, 11 Aug - Tue, 18 Aug
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€119Aer Lingus
Sat, 22 Aug - Sat, 29 Aug
Multiple Airlines Logo
18:00 - 08:35
ORK
-
SOU
14h 35m
2 stops
Multiple Airlines Logo
12:15 - 08:45
SOU
-
ORK
20h 30m
2 stops
€199Multiple Airlines
Wed, 5 Aug - Wed, 12 Aug
Multiple Airlines Logo
17:40 - 08:45
NOC
-
SOU
15h 05m
1 stop
Multiple Airlines Logo
09:20 - 08:30
SOU
-
NOC
23h 10m
2 stops
€207Multiple Airlines
Useful Info

Good to know – Book Cheap Portsmouth Plane Tickets

Low seasonJanuary
Cheapest flight€52
Most popular time to fly (24% more expensive on average)
Flight from Dublin to Southampton

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Dublin1h 40m
  • Which airlines fly to Southampton?

    Many airlines fly to Southampton, the most common ones being Ryanair, Aer Lingus, and British Airways. See the amount of flights per week for popular airlines flying to Southampton.

  • How to fly to Portsmouth?

    You cannot fly directly to Portsmouth. KAYAK recommends you fly to Southampton Eastleigh (SOU) (23.61 km from Portsmouth). From there you can hire a car or take a taxi.

  • What airports are near Portsmouth?

    The closest airport is Southampton Eastleigh (SOU) (23.61 km). Other nearby airports are London Gatwick (LGW) (73.89 km), London Heathrow (LHR) (84.73 km) or London All airports (LON) (101.61 km). KAYAK recommends you fly to Southampton Eastleigh.

  • How far is Southampton Eastleigh Airport from central Southampton?

    The city centre of Southampton is 6 km from Southampton.

  • What is the name of Southampton’s airport?

    When flying to Southampton, you'll arrive at Southampton Eastleigh Airport (SOU). The airport is also known as Eastleigh or Southampton.

  • How does KAYAK find such low prices on flights 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 to Portsmouth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Portsmouth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portsmouth with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Portsmouth

  • There is no major airport in Portsmouth,it is instead served by London's airports. We recommend you fly to London Heathrow Airport Airport, however you can also fly to London Gatwick Airport airport, London City Airport airport, London Luton Airport airport, London Stansted Airport airport or London Southend Airport airport.
  • Looking for cheap airfare to Portsmouth? 25% of our users found return tickets to Portsmouth for the following prices or less: From Dublin €130
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.

Reviews of the top airline flying to Portsmouth

 
Need help choosing which airline to fly with from Ireland 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.
7.3
Aer LingusOverall score based on 1650 reviews
8.1Crew
7.2Comfort
6.7Food
7.0Entertainment
7.4Boarding
Airline reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

2.0 MediocreGeorge Craig, Jul 2026
DUB - LHR
Read more Aer Lingus reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

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

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Short flight so not much to rate. Surprised I had to pay for a soda.

Very good need to offer better choice of food for business

Air Lingus flights were delayed on each of the three flights we took. Not a very good , and organized airline.

Everything you need to know for your flight to Portsmouth