€40 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 11/11. 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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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

czw., 4 gru - czw., 11 gru
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
€91Aer Lingus
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pon., 1 gru - pt., 5 gru
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
€93Aer Lingus
Find Deal
czw., 13 lis - pon., 17 lis
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
€94Aer Lingus
Find Deal
śr., 17 gru - czw., 18 gru
Aer Lingus Logo
13:55 - 15:35DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
€108Aer Lingus
Find Deal
pt., 21 lis - wt., 25 lis
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
12:25 - 14:00SOU-DUB
1h 35mdirect
€115Aer Lingus
Find Deal
pt., 21 lis - wt., 25 lis
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
16:05 - 17:40SOU-DUB
1h 35mdirect
€115Aer Lingus
Find Deal
czw., 13 lis - pon., 17 lis
Multiple Airlines Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Multiple Airlines Logo
19:55 - 07:30SOU-DUB
11h 35m1 stop
€125Multiple Airlines
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czw., 13 lis - pon., 17 lis
KLM Logo
05:55 - 17:25DUB-SOU
11h 30m1 stop
KLM Logo
18:05 - 22:10SOU-DUB
4h 05m1 stop
€201KLM
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pt., 5 gru - ndz., 7 gru
KLM Logo
06:00 - 08:50ORK-SOU
26h 50m1 stop
KLM Logo
09:30 - 10:45SOU-ORK
25h 15m1 stop
€304KLM
Find Deal
pon., 8 gru - ndz., 14 gru
KLM Logo
17:15 - 17:00ORK-SOU
23h 45m1 stop
KLM Logo
09:30 - 10:45SOU-ORK
25h 15m1 stop
€332KLM
Find Deal

Everything you should know

Cheapest return fare
€91
Overall average: €109
Aer Lingus
czw. 4/12czw. 11/12
DUB - SOU • Direct
Cheapest one-way flight
€41
Typical prices: €45-€73
Aer Lingus
wt. 11/11
DUB - SOU • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Portsmouth!
Useful Info

Good to know – Book Cheap Portsmouth Plane Tickets

Low seasonJanuary
Cheapest flight€40
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (38% more expensive on average)
Flight from Dublin to Southampton

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Dublin1h 41m

  • 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 €83
  • 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 1351 reviews
7.1Comfort
7.3Boarding
6.9Entertainment
6.5Food
8.0Crew
Airline reviews

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

10.0 ExcellentAnisha, Oct 2025DUB - EWR
Read more Aer Lingus reviews

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

They out me in the baby row so I was surrounded by toddlers, they also did not send my luggage and was not able to book my connecting flight

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

There was a mixup with our tickets. They said they did not receive payment for them but yet we had seat assignments. We had to purchase last-minute tickets which cost us three times as much. that’s why they got a rated of a one.

Everything you need to know for your flight to Portsmouth

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