€252 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 3/4. 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.
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Good to know

Low season

January

High season

June

Cheapest flight

€252
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from Dublin to Boston

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Dublin6h 35m
    Flights from Shannon6h 25m
  • What is the cheapest flight to Boston?

    In the last 3 days, the cheapest flight deal to Boston was found on the route from Dublin, at €246 return. The most popular connection is from Shannon to Boston and KAYAK users have found return deals for as low as €347 in the last 3 days.

  • How to fly to Portsmouth?

    You cannot fly directly to Portsmouth. KAYAK recommends you fly to Boston Logan Intl (BOS) (80.99 km from Portsmouth). From there you can hire a car or take a taxi.

  • What airports are near Portsmouth?

    The closest airport is Manchester (MHT) (57.11 km). Another nearby airport is Portland (PWM) (73.67 km) KAYAK recommends you fly to Boston Logan Intl.

  • How far is Boston Logan Intl Airport from central Boston?

    You’ll need to travel 4 km to reach the Boston city centre from Boston Logan Intl Airport.

  • What is the name of Boston’s airport?

    When flying to Boston, you'll arrive at Boston Logan Intl Airport (BOS). The airport is also known as Boston Logan, General Edward Lawrence Logan Intl, or Logan Intl.

  • 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 Boston Logan Intl Airport.
  • Looking for cheap airfare to Portsmouth? 25% of our users found return tickets to Portsmouth for the following prices or less: From Shannon €560, from Dublin €850
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly from Ireland is February.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.
See more tips

Top 5 airlines 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.
7.8
KLMOverall score based on 1341 reviews
7.7Comfort
7.8Boarding
7.2Entertainment
7.3Food
8.4Crew
Airline reviews

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

2.0 Mediocrejack, Jan 2025CPT - AMS
Read more KLM reviews

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

The food & entertainment really stood out in terms of quality. The nasi goreng & chicken satay were absolutely delicious. It’s great that KLM feature international cuisine.

Seats were comfortable crew members support was very good but AVML ordered or selected by us needs a lot of improvement.

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

Flight left a few minutes late, but that's it. I wish the seats could be wider and recline more.

The IFE was quite old, but it worked fine and the content was good. The cabin crew were excellent and the food was as also very good

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

Love the mosaic program, being able to move to an extra space seat for free is awesome

I rate it is good we had a 4-hour travel delay at one point but JetBlue gave out food vouchers and travel points credits for another flight so they try to make up for it

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

I wish that the meal included a vegetable or even a salad instead of couscous! Why serve chicken with rice AND couscous? Service was good overall though a bit lacking in friendliness. Usually on air france I've been offered a glass of champagne before dinner, wine with dinner, and a digestif after dinner. We were only offered wine this time!

My wife and I had a row to ourselves after moving seats. There were no TVs and you had to buy food. So we did nothing but had a quick nap. Flight was fine.

The plane was old Only 3 bathrooms available for economy The entertainment was old and the selection was poor

Georgian Airways check in staff initially denied us, because they thought passengers required transit visas to transfer on connecting flights. This required 70 minutes for them to call multiple people to confirm how transfers worked. They did not apologize once accepting our check in. Onboard, the four hour flight gave stale bread with spam slices as lunch. The only included drinks were still or sparkling water.

I did not get my baggage at my final destination..poor coordination with connecting flights with partner airlines (Saudi airways). Also the food was very mediocre.

Not a good one this time. The absence of internet without any information/notification ahead was really the unacceptable part. Also this new A350-900 has a serious legroom challenge for economy seats. It’s more like a medium-haul flight legroom configuration.

Not great , just ok . I expected better food but it did not deliver . Flight staff was ok . The guy at the drop off bag counter was the only saving grace in this whole trip . He was pleasant, friendly and very helpful . You couldn’t ask for a better assistance from him .

Boarding was a disaster being moved by Air France by bus to the plane. The plane should have been at the right gate.

They lost my baggage and I still have not got it back. Disgrace

They lost my lauggage and I STILL HAVE NOT RECEIVED IT. NO ONE IS HELPING! PLEASE HELP FIND MY LOST LAUGGAGE

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.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

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.

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.

It would have been better to have USB charging ports available on the longer haul Flight that one of 2 hours

Was very good Staff was great. No tv monitors tho. So long flights make it longer

The worst. No free beverages. No entertainment on an overseas flight. Not enough space. Never again.

Play is affordable! Only way we fly from the states to Europe. Left late but arrived on time

have screens on backs of chairs...offer free snacks and water

Boarding and crew was great. Flight was cold, need layers. Deplaning was hard. We had to take stairs off the plane and I was separated from my travel companion because we were not seated together and they would not let him wait for me to get off so we were forced onto different shuttles.

Check in and boarding was easy, crew was cheerful. Not much to read or do on the plane and our neighboring passengers were talking loudly so we could not sleep. But overall good. Great coffee.

Flyplay is the only way I travel to Europe. Had a 15 hr layover in Iceland. Normally this would suck, but I regret a car and saw the black sand beaches, several waterfalls and sky lagoon. And finished with lamb at cafe Loki.

did not get the seats we had specially paid for

This is a no frills airline. You cant expect much for the price. Low cost flight, clean, nice staff. That's all I need for the price. If you want more, book with another airline and pay more. For Europe trips, PLAY is the ONLY airline I use

Book Cheap Portsmouth Plane Tickets

Recent return flight deals

27/3Thu
1 stopPLAY
11h 00mDUB-BOS
30/3Sun
1 stopPLAY
9h 20mBOS-DUB
€255
1/2Sat
1 stopPLAY
11h 00mDUB-BOS
8/2Sat
1 stopPLAY
10h 20mBOS-DUB
€264
1/2Sat
directAer Lingus
7h 05mSNN-BOS
7/2Fri
directAer Lingus
5h 50mBOS-SNN
€347
11/3Tue
directAer Lingus
7h 05mSNN-BOS
18/3Tue
directAer Lingus
5h 50mBOS-SNN
€351
6/2Thu
1 stopDelta
12h 40mDUB-BOS
10/2Mon
2 stopsDelta
17h 05mBOS-DUB
€371
3/2Mon
1 stopKLM
29h 10mORK-BOS
10/2Mon
1 stopKLM
12h 44mBOS-ORK
€376
5/2Wed
2 stopsDelta
21h 32mDUB-BOS
9/2Sun
2 stopsDelta
17h 05mBOS-DUB
€378
12/3Wed
1 stopKLM
29h 00mORK-BOS
19/3Wed
1 stopKLM
19h 35mBOS-ORK
€475
6/3Thu
directJetBlue
7h 05mSNN-BOS
13/3Thu
directJetBlue
5h 50mBOS-SNN
€611
2/5Fri
directJetBlue
6h 45mSNN-BOS
6/5Tue
directJetBlue
5h 50mBOS-SNN
€647

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Recent one-way flight deals

3/4Thu
1 stopPLAY
11h 25mDUB-BOS
€252
17/3Mon
2 stops
32h 35mDUB-BOS
€254
9/3Sun
1 stopIcelandair
11h 15mDUB-BOS
€282
7/3Fri
1 stopIcelandair
28h 05mDUB-BOS
€283
8/2Sat
directAer Lingus
7h 14mDUB-BOS
€304
23/3Sun
2 stopsAer Lingus
22h 45mSNN-BOS
€342
7/3Fri
directBritish Airways
7h 15mDUB-BOS
€474
20/2Thu
2 stopsBritish Airways
14h 44mDUB-BOS
€476
17/4Thu
directJetBlue
6h 45mSNN-BOS
€744
27/4Sun
directJetBlue
6h 45mSNN-BOS
€1,065

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Last minute flights to Portsmouth

Last minute flight, train and bus deals

26/1Sun
multi-stopIberia
25h 30mDUB-BOS
2/2Sun
multi-stopIberia
9h 43mBOS-DUB
€400
26/1Sun
multi-stopBritish Airways
22h 30mDUB-BOS
2/2Sun
multi-stopBritish Airways
15h 44mBOS-DUB
€449
26/1Sun
multi-stop
12h 36mDUB-BOS
2/2Sun
direct
6h 05mBOS-DUB
€500
24/1Fri
multi-stop
25h 35mDUB-BOS
1/2Sat
multi-stop
10h 20mBOS-DUB
€537
24/1Fri
directAer Lingus
7h 14mDUB-BOS
31/1Fri
directAer Lingus
6h 05mBOS-DUB
€557
26/1Sun
directAmerican Airlines
7h 15mDUB-BOS
2/2Sun
directAmerican Airlines
6h 05mBOS-DUB
€570
24/1Fri
multi-stopUnited Airlines
14h 26mDUB-BOS
31/1Fri
multi-stopUnited Airlines
16h 30mBOS-DUB
€577
25/1Sat
directAer Lingus
7h 15mDUB-BOS
31/1Fri
directAer Lingus
6h 05mBOS-DUB
€580
25/1Sat
multi-stopUnited Airlines
17h 59mDUB-BOS
31/1Fri
multi-stopUnited Airlines
13h 48mBOS-DUB
€590
24/1Fri
directAmerican Airlines
7h 15mDUB-BOS
31/1Fri
multi-stopAmerican Airlines
13h 45mBOS-DUB
€608

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Everything you need to know for your flight to Portsmouth

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