€56 Find Cheap Flights to Portsmouth

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 15/4. 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
€79
Overall average: €153
Aer Lingus
Wed 8/4Wed 22/4
DUB - SOU • Direct
Cheapest one-way flight
€56
Typical prices: €60-€123
Aer Lingus
Wed 15/4
DUB - SOU • Direct
Arrival airport
Southampton (SOU)
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, 8 Apr - Wed, 22 Apr
Aer Lingus Logo
06:25 - 08:05
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€79Aer Lingus
Wed, 15 Apr - Wed, 22 Apr
Aer Lingus Logo
06:25 - 08:05
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€113Aer Lingus
Wed, 8 Apr - Wed, 22 Apr
Aer Lingus Logo
06:25 - 08:05
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€116Aer Lingus
Thu, 23 Apr - Mon, 27 Apr
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€129Aer Lingus
Thu, 23 Apr - Mon, 27 Apr
Aer Lingus Logo
07:00 - 08:40
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€129Aer Lingus
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
19:30 - 08:35
DUB
-
SOU
13h 05m
1 stop
Multiple Airlines Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€130Multiple Airlines
Wed, 8 Apr - Wed, 22 Apr
Aer Lingus Logo
06:25 - 08:05
DUB
-
SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35
SOU
-
DUB
1h 35mdirect
€133Aer Lingus
Tue, 31 Mar - Sat, 4 Apr
KLM Logo
17:10 - 08:35
ORK
-
SOU
15h 25m
1 stop
KLM Logo
09:15 - 10:20
SOU
-
ORK
25h 05m
1 stop
€331KLM
Sun, 10 May - Sat, 16 May
KLM Logo
06:15 - 08:35
ORK
-
SOU
26h 20m
1 stop
KLM Logo
09:15 - 16:35
SOU
-
ORK
7h 20m
1 stop
€360KLM
Sun, 10 May - Thu, 14 May
KLM Logo
06:15 - 08:35
ORK
-
SOU
26h 20m
1 stop
KLM Logo
09:05 - 10:20
SOU
-
ORK
25h 15m
1 stop
€362KLM
Useful Info

Good to know – Book Cheap Portsmouth Plane Tickets

Low seasonJanuary
Cheapest flight€56
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (25% more expensive on average)
Flight from Dublin to Southampton

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Dublin1h 37m

  • 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.
  • 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.
7.2
Aer LingusOverall score based on 1477 reviews
7.4Boarding
7.1Comfort
6.6Food
8.1Crew
7.0Entertainment
Airline reviews

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!!

2.0 MediocreAnonymous, Mar 2026
BHD - MAN
Read more Aer Lingus reviews

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!!

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

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

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

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

Everything you need to know for your flight to Portsmouth