€48 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 17/10. 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 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, 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
€73Aer Lingus
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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
€74Aer Lingus
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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
€74Aer Lingus
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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
€78Aer 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
€142
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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
€143
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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
€201KLM
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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
€233KLM
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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
€268British 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
€269British Airways
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Useful Info

Good to know – Book Cheap Portsmouth Plane Tickets

Low seasonFebruary
High seasonJune
Cheapest flight€48
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

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Dublin1h 37m
  • 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 €126
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.

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

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

4.0 OkayLeo, May 2025DUB - LHR
Read more Aer Lingus reviews

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.

Seats weren't very comfortable for a long haul flight but the service made up for it.

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.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

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 to Portsmouth

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