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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
11 Jan — 18 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Portsmouth to Dublin are usually found in January or February, booked 49 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from Portsmouth to Dublin
Enter your travel dates to find the best prices.
Cheapest flights from Portsmouth to Dublin
Explore the most affordable flight options available from Portsmouth to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.
Tue 16/1212:25SOU - DUB
Nonstop1h 35mAer Lingus
Tue 16/1218:00DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 11/12£122
Fri 26/1217:30SOU - DUB
1 stop4h 40mKLM
Wed 31/1217:15DUB - SOU
1 stop15h 05mKLM
Deal found 10/12£137
Tue 16/1216:05SOU - DUB
Nonstop1h 35mMultiple Airlines
Thu 18/1221:30DUB - SOU
2 stops16h 15mMultiple Airlines
Deal found 11/12£143
Fri 26/1220:10SOU - DUB
Nonstop1h 40mMultiple Airlines
Mon 29/1206:55DUB - SOU
1 stop25h 55mMultiple Airlines
Deal found 10/12£153
Sat 27/1209:25SOU - DUB
1 stop22h 40mKLM
Wed 31/1217:15DUB - SOU
1 stop15h 05mKLM
Deal found 10/12£173
Tue 30/1220:10SOU - DUB
Nonstop1h 40mAer Lingus
Fri 2/107:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 11/12£179
Fri 26/1220:10SOU - DUB
Nonstop1h 40mMultiple Airlines
Wed 31/1206:45DUB - SOU
1 stop4h 10mMultiple Airlines
Deal found 10/12£185
Fri 26/1220:10SOU - DUB
Nonstop1h 40mAer Lingus
Wed 31/1213:55DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 10/12£196
Fri 26/1216:05SOU - DUB
Nonstop1h 35mMultiple Airlines
Tue 30/1206:10DUB - SOU
2 stops26h 40mMultiple Airlines
Deal found 10/12£202
Sun 28/1220:10SOU - DUB
Nonstop1h 40mMultiple Airlines
Mon 29/1222:10DUB - SOU
1 stop10h 40mMultiple Airlines
Deal found 10/12£203
Fri 26/1208:40SOU - DUB
1 stop7h 40mKLM
Mon 29/1208:50DUB - SOU
1 stop23h 20mKLM
Deal found 10/12£205
Best flights from Portsmouth to Dublin
Discover carefully curated flight deals from Portsmouth to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.
Sat 7/209:30SOU - DUB
Nonstop1h 40mAer Lingus
Sun 8/207:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 12/12£108
Thu 8/117:55SOU - DUB
1 stop4h 30mMultiple Airlines
Mon 12/107:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Deal found 11/12£111
Fri 9/117:45SOU - DUB
1 stop5h 05mMultiple Airlines
Sun 11/107:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Deal found 11/12£114
Mon 5/116:05SOU - DUB
Nonstop1h 35mAer Lingus
Thu 8/113:55DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 12/12£119
Mon 5/112:05SOU - DUB
1 stop9h 25mMultiple Airlines
Thu 8/107:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Deal found 12/12£114
Fri 9/120:10SOU - DUB
Nonstop1h 40mMultiple Airlines
Thu 15/120:40DUB - SOU
2 stops17h 05mMultiple Airlines
Deal found 11/12£121
Fri 2/120:10SOU - DUB
Nonstop1h 40mAer Lingus
Sun 4/107:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 12/12£134
Thu 8/117:55SOU - DUB
1 stop4h 30mMultiple Airlines
Thu 15/120:40DUB - SOU
2 stops17h 05mMultiple Airlines
Deal found 11/12£122
Fri 6/214:25SOU - DUB
1 stop5h 35mMultiple Airlines
Sun 8/207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Deal found 12/12£125
Sun 25/118:20SOU - DUB
1 stop21h 15mMultiple Airlines
Sun 1/207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Deal found 11/12£125
Mon 26/120:10SOU - DUB
Nonstop1h 40mMultiple Airlines
Fri 30/106:55DUB - SOU
1 stop10h 15mMultiple Airlines
Deal found 12/12£128
Direct flights from Portsmouth to Dublin
Explore direct flight options from Portsmouth to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 December 2025.
Mon 5/109:30SOU - DUB
Nonstop1h 40mAer Lingus
Fri 9/107:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 11/12£101
Mon 26/120:10SOU - DUB
Nonstop1h 40mAer Lingus
Fri 30/118:00DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 11/12£107
Sat 7/209:30SOU - DUB
Nonstop1h 40mAer Lingus
Sun 8/207:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 12/12£108
Mon 5/116:05SOU - DUB
Nonstop1h 35mAer Lingus
Thu 8/113:55DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 12/12£119
Sun 25/120:10SOU - DUB
Nonstop1h 40mAer Lingus
Sun 1/207:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 11/12£130
Fri 2/120:10SOU - DUB
Nonstop1h 40mAer Lingus
Sun 4/107:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 12/12£134
Sat 18/409:10SOU - DUB
Nonstop1h 40mAer Lingus
Mon 20/407:00DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 11/12£134
Fri 17/420:00SOU - DUB
Nonstop1h 35mAer Lingus
Sun 19/406:55DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 11/12£137
Fri 30/120:10SOU - DUB
Nonstop1h 40mAer Lingus
Mon 2/207:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 11/12£146
Last-minute flights from Portsmouth to Dublin
Discover last-minute flight deals from Portsmouth to Dublin. Data last updated 12 December 2025 and is based on user searches.
Sat 20/1209:30SOU - DUB
1 stop8h 55mMultiple Airlines
Sun 21/1207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Deal found 10/12£237
Sat 20/1209:30SOU - DUB
Nonstop1h 40mAer Lingus
Sun 21/1207:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 10/12£317
Sun 21/1216:35SOU - DUB
1 stop6h 10mMultiple Airlines
Tue 23/1218:00DUB - SOU
Nonstop1h 40mMultiple Airlines
Deal found 10/12£243
Sun 21/1209:30SOU - DUB
1 stop6h 50mKLM
Tue 23/1208:50DUB - SOU
1 stop8h 10mKLM
Deal found 10/12£253
Sun 21/1220:10SOU - DUB
Nonstop1h 40mAer Lingus
Tue 23/1210:10DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 10/12£255
Sun 21/1220:10SOU - DUB
Nonstop1h 40mBritish Airways
Sat 3/107:00DUB - SOU
Nonstop1h 45mBritish Airways
Deal found 12/12£301
Mon 22/1208:30SOU - DUB
1 stop14h 25mMultiple Airlines
Tue 23/1218:00DUB - SOU
Nonstop1h 40mMultiple Airlines
Deal found 10/12£214
Mon 22/1208:40SOU - DUB
1 stop13h 30mKLM
Tue 23/1208:50DUB - SOU
1 stop23h 20mKLM
Deal found 10/12£220
Mon 22/1209:30SOU - DUB
Nonstop1h 40mAer Lingus
Tue 23/1218:00DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 10/12£266
One-way flights from Portsmouth to Dublin
Search for one-way flight options from Portsmouth to Dublin. Find affordable one-way fares based on user searches. Data last updated 12 December 2025.
Tue 13/112:25SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 11/12£49
Sun 25/118:20SOU - DUB
1 stop23h 20mMultiple Airlines
Deal found 11/12£64
Tue 13/115:20SOU - DUB
1 stop18h 50mMultiple Airlines
Deal found 11/12£65
Sun 25/116:05SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 11/12£78
Sat 30/509:10SOU - DUB
Nonstop1h 40mAer Lingus
Deal found 12/12£104
Wed 24/1212:25SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 10/12£106
Sat 30/507:50SOU - DUB
2 stops7h 55mMultiple Airlines
Deal found 12/12£137
Sat 6/617:05SOU - DUB
Nonstop1h 50mAer Lingus
Deal found 10/12£143
Mon 22/1208:30SOU - DUB
1 stop7h 25mMultiple Airlines
Deal found 10/12£146
Find flight deals from Portsmouth to Dublin
Keep the following information in mind while searching for Portsmouth to Dublin flight deals. Data was last updated 12 December 2025.
Customise your flight search to find flights from Portsmouth to Dublin 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 12 December 2025.
Use the filters below to find and compare flights from Portsmouth to Dublin that are best for you.
Fly from
Portsmouth
Fly to
Dublin
Route
Depart
Return
Price
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Sat 7/2
09:30-11:10
Nonstop1h 40m
Dublin
Sun 8/2
07:00-08:45
Nonstop1h 45m
£108
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Thu 8/1
17:55-22:25
1 stop4h 30m
Dublin
Mon 12/1
07:00-08:45
Nonstop1h 45m
£111
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Fri 9/1
17:45-22:50
1 stop5h 05m
Dublin
Sun 11/1
07:00-08:45
Nonstop1h 45m
£114
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Mon 5/1
12:05-21:30
1 stop9h 25m
Dublin
Thu 8/1
07:00-08:45
Nonstop1h 45m
£114
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Mon 5/1
16:05-17:40
Nonstop1h 35m
Dublin
Thu 8/1
13:55-15:35
Nonstop1h 40m
£119
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Fri 9/1
20:10-21:50
Nonstop1h 40m
Dublin
Thu 15/1
20:40-13:45
2 stops17h 05m
£121
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Thu 8/1
17:55-22:25
1 stop4h 30m
Dublin
Thu 15/1
20:40-13:45
2 stops17h 05m
£122
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Fri 6/2
14:25-20:00
1 stop5h 35m
Dublin
Sun 8/2
07:00-08:45
Nonstop1h 45m
£125
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Sun 25/1
18:20-15:35
1 stop21h 15m
Dublin
Sun 1/2
07:00-08:45
Nonstop1h 45m
£125
SouthamptonDublin
SOU - DUB
SOUDUB
Southampton Eastleigh
Mon 26/1
20:10-21:50
Nonstop1h 40m
Dublin
Fri 30/1
06:55-17:10
1 stop10h 15m
£128
Flights are sorted by cheapest return flights first.
Deals found on 11/12
Showing 1-10 of 21 results
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Best time to book a flight from Portsmouth to Dublin
Have a flexible travel schedule? Discover the best time to fly to Dublin from Portsmouth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Portsmouth to Dublin
How far ahead should I book a flight from Portsmouth to Dublin?
Use this chart to determine the optimal time to book a return flight from Portsmouth to Dublin. Price data was last updated on 5 December 2025.
The best time to book flights from Portsmouth to Dublin is 25 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Portsmouth to Dublin?
Currently, February is the cheapest month in which you can book a flight from Portsmouth to Dublin (average of £24). Flying from Portsmouth to Dublin in December is currently the most expensive (average of £39). 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 DUB?
Find hourly flight availability from Portsmouth to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
A simple way to save on the total cost of your ticket is to fly from Portsmouth to Dublin in the afternoon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Portsmouth to Dublin?
Use this chart to determine the cheapest time to fly return from Portsmouth to Dublin. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Portsmouth to Dublin flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Portsmouth to Dublin
Explore weekly flight availability from Portsmouth to Dublin. 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 12 December 2025.
The most flights from P0R to DUB are scheduled on a Friday (70 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (34 on average).
Reviews of airlines servicing Dublin
Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 12 December 2025.
Read reviews from past customers who have flown with KLM, Aer Lingus, andRyanair
from Portsmouth to Dublin. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Not literally sitting in the very last row in the middle
Related info for your journey
Find useful and relevant information for your journey from Portsmouth to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Dublin from Portsmouth?
If you book a flight to Dublin from Portsmouth, you will be flying to Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 6 flights from Portsmouth to Dublin per day from 4 different airlines.
How long is the flight from Portsmouth to Dublin?
There are many flights that can get you from Portsmouth to Dublin in 1h 40m. Fly via Aer Lingus to get the fastest option. Airlines will cover a distance of 268 mi. Most flights are nonstop.
What are the most reliable airlines from Portsmouth to Dublin?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portsmouth to Dublin on time: Kenya Airways (80%), LATAM Airlines (79%), Air Canada (77%).
What are the cheapest flights from Portsmouth to Dublin?
Looking at all options, your cheapest flight can be booked for £64. While the most popular route (Southampton Eastleigh - Dublin) can be booked for £86 on average, our data indicates £374 when flying from Portsmouth to Dublin.
Can I find deals for business class flights from Portsmouth to Dublin?
Yes. Cheapflights offers flight deals from Portsmouth to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Portsmouth to Dublin?
Currently, February is the cheapest month in which you can book a flight from Portsmouth to Dublin (average of £24). Flying from Portsmouth to Dublin in December is currently the most expensive (average of £39). 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.
Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Discover the top 4 airlines that operate flights from Portsmouth to Dublin. 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 12 December 2025.
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 Dublin?
Cheapflights makes it easy to find Portsmouth to Dublin flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Dublin?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portsmouth to Dublin.
Can Cheapflights find flights from Portsmouth to Dublin with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Dublin flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Portsmouth to Dublin become cheaper?
Of course! You can now track prices for flights from Portsmouth to Dublin 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.
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