Cheap flights from Portsmouth to Ireland from £65
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Portsmouth to Ireland
Keep the following information in mind while searching for Portsmouth to Ireland flight deals. Data was last updated 2 July 2025.
Round-trip from | £106 |
---|---|
One-way from | £65 |
Popular in | December |
Cheapest in | September |
Average price | £62 |
Find flight deals from Portsmouth to Ireland
Cheapest flights from Portsmouth to IrelandExplore the most affordable flight options available from Portsmouth to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.
Explore the most affordable flight options available from Portsmouth to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Portsmouth to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 July 2025.
Use the filters below to find and compare flights from Portsmouth to Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Tue 26/8
20:00-21:35
Nonstop1h 35m
Dublin
Sun 31/8
06:55-08:35
Nonstop1h 40m
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Mon 6/10
11:05-22:50
1 stop11h 45m
Dublin
Thu 9/10
07:00-08:40
Nonstop1h 40m
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Wed 20/8
09:20-20:15
1 stop10h 55m
Dublin
Tue 26/8
20:45-08:45
1 stop12h 00m
SouthamptonCork
SOU - ORK
SOUORK
Southampton Eastleigh
Wed 20/8
18:25-22:25
1 stop4h 00m
Cork
Sat 23/8
17:15-08:45
1 stop15h 30m
SouthamptonCork
SOU - ORK
SOUORK
Southampton Eastleigh
Mon 28/7
20:30-00:30
1 stop28h 00m
Cork
Mon 4/8
14:00-08:25
2 stops18h 25m
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Wed 5/11
16:05-17:40
Nonstop1h 35m
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Mon 29/9
12:10-10:55
1 stop22h 45m
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Wed 5/11
17:20-22:00
1 stop4h 40m
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Mon 1/9
20:00-21:35
Nonstop1h 35m
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Mon 1/9
15:05-12:00
1 stop20h 55m
Best time to book a flight from Portsmouth to Ireland
Have a flexible travel schedule? Discover the best time to fly to Ireland from Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portsmouth to Ireland
What is the cheapest month to book a flight from Portsmouth to Ireland?
Currently, January is the cheapest month in which you can book a flight from Portsmouth to Ireland (average of £71). Flying from Portsmouth to Ireland in August is currently the most expensive (average of £93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from P0R to IE?
Find hourly flight availability from Portsmouth to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 July 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Ireland as you normally would.
What is the cheapest day to fly from Portsmouth to Ireland?
Use this chart to determine the cheapest time to fly return from Portsmouth to Ireland. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Portsmouth to Ireland flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Portsmouth to Ireland
Explore weekly flight availability from Portsmouth to Ireland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 2 July 2025.
The most flights from P0R to IE0 are scheduled on a Monday (66 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (29 on average).
Reviews of airlines servicing Ireland
Get insights into the airlines that provide service to Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ireland. Reviews last updated 2 July 2025.
See what other customers who have flown with KLM, Aer Lingus, andBritish Airways from Portsmouth to Ireland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Related info for your journey
Find useful and relevant information for your journey from Portsmouth to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Portsmouth to Ireland
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Portsmouth to Ireland
Discover the top 4 airlines that operate flights from Portsmouth to Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 July 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Portsmouth to Ireland?
When you search for this flight from Portsmouth to Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Ireland?
Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Portsmouth to Ireland with no change fees?
Yes! Cheapflights helps users easily find flights from Portsmouth to Ireland with no change fees.
Can Cheapflights notify me if prices for flights from Portsmouth to Ireland become cheaper?
Of course! You can now track prices for flights from Portsmouth to Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.