€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 8/2. 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.
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Good to know

Low season

January

High season

August

Cheapest flight

€40
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly and prices are also 0% lower 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.

See more FAQs

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 €89
  • 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 from Ireland is January.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.
See more tips

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 1082 reviews
7.0Comfort
7.3Boarding
8.0Crew
6.8Entertainment
6.4Food
Airline reviews

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

2.0 MediocreGino, Jan 2025DUB - BOS
Read more Aer Lingus reviews

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

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

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

Book Cheap Portsmouth Plane Tickets

Recent return flight deals

6/3Thu
directAer Lingus
1h 45mDUB-SOU
10/3Mon
directAer Lingus
1h 40mSOU-DUB
€96
6/3Thu
directAer Lingus
1h 45mDUB-SOU
10/3Mon
directAer Lingus
1h 40mSOU-DUB
€97
13/2Thu
directAer Lingus
1h 45mDUB-SOU
17/2Mon
directAer Lingus
1h 40mSOU-DUB
€98
6/3Thu
directAer Lingus
1h 45mDUB-SOU
10/3Mon
directAer Lingus
1h 40mSOU-DUB
€100
6/3Thu
direct
1h 45mDUB-SOU
10/3Mon
1 stop
5h 25mSOU-DUB
€149
6/3Thu
direct
1h 45mDUB-SOU
10/3Mon
1 stop
6h 35mSOU-DUB
€159
23/5Fri
1 stopKLM
8h 05mDUB-SOU
31/5Sat
1 stopKLM
7h 20mSOU-DUB
€205
6/3Thu
1 stopKLM
10h 55mDUB-SOU
10/3Mon
1 stopKLM
4h 45mSOU-DUB
€209
6/2Thu
directBritish Airways
1h 45mDUB-SOU
10/2Mon
directBritish Airways
1h 40mSOU-DUB
€267
13/2Thu
directBritish Airways
1h 45mDUB-SOU
17/2Mon
directBritish Airways
1h 40mSOU-DUB
€269

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Recent one-way flight deals

8/2Sat
directAer Lingus
1h 45mDUB-SOU
€40
7/3Fri
directAer Lingus
1h 45mDUB-SOU
€43
7/3Fri
1 stop
27h 10mDUB-SOU
€84
30/5Fri
directAer Lingus
1h 35mDUB-SOU
€95
6/3Thu
2 stops
19h 55mORK-SOU
€109
1/2Sat
2 stops
37h 35mDUB-SOU
€116
3/2Mon
directBritish Airways
1h 45mDUB-SOU
€120
18/2Tue
directBritish Airways
1h 45mDUB-SOU
€130
30/5Fri
1 stopKLM
12h 00mDUB-SOU
€131
8/2Sat
1 stopKLM
10h 55mDUB-SOU
€149

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Last minute flights to Portsmouth

Last minute flight, train and bus deals

23/1Thu
multi-stop
10h 40mDUB-SOU
23/1Thu
direct
1h 40mSOU-DUB
€178
23/1Thu
multi-stop
7h 20mDUB-SOU
23/1Thu
direct
1h 40mSOU-DUB
€443
25/1Sat
multi-stop
15h 30mORK-SOU
27/1Mon
multi-stop
6h 45mSOU-ORK
€453
25/1Sat
multi-stop
16h 40mORK-SOU
27/1Mon
multi-stop
6h 45mSOU-ORK
€511
24/1Fri
directBritish Airways
1h 45mDUB-SOU
26/1Sun
multi-stopBritish Airways
5h 40mSOU-DUB
€565
25/1Sat
multi-stopAer Lingus
16h 40mORK-SOU
27/1Mon
multi-stopAer Lingus
7h 20mSOU-ORK
€576
23/1Thu
multi-stop
10h 40mDUB-SOU
23/1Thu
multi-stop
22h 35mSOU-DUB
€665
24/1Fri
multi-stopBritish Airways
8h 15mDUB-SOU
26/1Sun
directBritish Airways
1h 40mSOU-DUB
€692
24/1Fri
multi-stopBritish Airways
7h 20mDUB-SOU
26/1Sun
multi-stopBritish Airways
5h 40mSOU-DUB
€1,054
25/1Sat
multi-stop
36h 55mORK-SOU
27/1Mon
multi-stop
17h 50mSOU-ORK
€1,916

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Everything you need to know for your flight to Portsmouth

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