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Cheap flights from Ireland to Southampton from £42

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SOU
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to Southampton

Keep the following information in mind while searching for Ireland to Southampton flight deals. Data was last updated 25 November 2025.

Round-trip from

£81

One-way from

£42

Popular in

April

Cheapest in

January

Average price

£85

Good round-trip deal

£100 or less

Good one-way deal

£53 or less
Aer Lingus
  • Aer Lingus
  • 11/12-15/12
  • Nonstop
  • 3h 25m total
  • Ireland to Southampton
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Aer Lingus
  • Aer Lingus
  • 8/1
  • Nonstop
  • 1h 45m total
  • Ireland to Southampton
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Ireland to Southampton Eastleigh.
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Price to beat on a one-way flight from Ireland to Southampton Eastleigh.
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Find flight deals from Ireland to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to Southampton
Explore the most affordable flight options available from Ireland to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 November 2025.

Tue 2/1210:10DUB - SOU
Nonstop1h 45mAer Lingus
Wed 3/1220:10SOU - DUB
Nonstop1h 40mAer Lingus
Deal found 23/11£81
Thu 11/1207:00DUB - SOU
Nonstop1h 45mAer Lingus
Mon 15/1220:10SOU - DUB
Nonstop1h 40mAer Lingus
Deal found 22/11£82
Thu 11/1207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Mon 15/1219:55SOU - DUB
1 stop16h 45mMultiple Airlines
Deal found 23/11£112
Sat 13/1207:00DUB - SOU
Nonstop1h 45mAer Lingus
Tue 16/1212:25SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 24/11£116
Mon 1/1207:00DUB - SOU
Nonstop1h 45mAer Lingus
Mon 8/1220:10SOU - DUB
Nonstop1h 40mAer Lingus
Deal found 24/11£119
Fri 19/1207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Fri 19/1217:45SOU - DUB
1 stop6h 20mMultiple Airlines
Deal found 23/11£127
Sat 13/1207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Mon 15/1219:55SOU - DUB
1 stop16h 45mMultiple Airlines
Deal found 23/11£133
Sat 13/1207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Tue 16/1209:20SOU - DUB
1 stop12h 10mMultiple Airlines
Deal found 24/11£138
Wed 10/1210:10DUB - SOU
Nonstop1h 45mAer Lingus
Sun 14/1220:10SOU - DUB
Nonstop1h 40mAer Lingus
Deal found 24/11£144
Wed 10/1210:10DUB - SOU
Nonstop1h 45mMultiple Airlines
Sun 14/1218:20SOU - DUB
1 stop27h 10mMultiple Airlines
Deal found 24/11£149

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ireland to Southampton 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 25 November 2025.
Use the filters below to find and compare flights from Ireland to Southampton that are best for you.

Fly from

Ireland

Fly to

Southampton

Route

Depart

Return

Price

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 6/1

10:10-11:55

Nonstop1h 45m

Southampton Eastleigh

Tue 13/1

12:25-14:00

Nonstop1h 35m

£86

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 13/1

10:10-11:55

Nonstop1h 45m

Southampton Eastleigh

Fri 16/1

20:10-21:50

Nonstop1h 40m

£86

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 8/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 11/1

20:10-21:50

Nonstop1h 40m

£86

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Wed 7/1

10:10-11:55

Nonstop1h 45m

Southampton Eastleigh

Wed 14/1

12:25-14:00

Nonstop1h 35m

£86

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 12/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 12/1

20:10-21:50

Nonstop1h 40m

£87

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 12/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 12/1

12:05-21:30

1 stop9h 25m

£105

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 30/1

18:00-19:40

Nonstop1h 40m

Southampton Eastleigh

Mon 2/2

20:10-21:50

Nonstop1h 40m

£105

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 8/1

09:05-17:20

1 stop8h 15m

Southampton Eastleigh

Thu 15/1

17:55-22:25

1 stop4h 30m

£111

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 11/12

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 15/12

19:55-12:40

1 stop16h 45m

£112

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sun 25/1

06:40-17:45

1 stop11h 05m

Southampton Eastleigh

Wed 28/1

12:25-14:00

Nonstop1h 35m

£121

Flights are sorted by cheapest return flights first.

Deals found on 24/11

Showing 1-10 of 25 results
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Best time to book a flight from Ireland to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Ireland 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 Ireland to Southampton

What is the cheapest month to book a flight from Ireland to Southampton?

Currently, January is the cheapest month in which you can book a flight from Ireland to Southampton (average of £21). Flying from Ireland to Southampton in April is currently the most expensive (average of £34). 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 IE to SOU?

Find hourly flight availability from Ireland to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 November 2025.

It’s typically best to fly out from Ireland to Southampton in the evening. Doing so could potentially save you 70% on the flight price compared to flying at midday, which is usually more expensive.

Weekly flight availability from Ireland to Southampton

Explore weekly flight availability from Ireland to Southampton. 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 25 November 2025.

The most flights from IE0 to SOU are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Ireland to Southampton delayed?

About 17% of weekly flights between Ireland and Southampton have experienced delays in the past year, with the average delay time being 100 minutes.

What is the most punctual flight time for Ireland to Southampton flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Southampton flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 17% of flights being delayed.

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. 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 Southampton. Reviews last updated 25 November 2025.
Check out reviews from past customers who have flown with Aer Lingus from Ireland to Southampton to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,381 reviews
Check prices

Food

6.6

Entertainment

6.9

Overall

7.2

Comfort

7.1

Crew

8.0

Boarding

7.4

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Aer Lingus
7.2
Good
1,381 reviews
Aer Lingus
7.2
Good
1,381 reviews
Check prices

Food

6.6

Entertainment

6.9

Overall

7.2

Comfort

7.1

Crew

8.0

Boarding

7.4

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Southampton. 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 Southampton from Ireland?

    Located just 3.5 mi from the city center, Southampton Eastleigh (SOU) is the airport most travelers will use when flying to Southampton from Ireland.

  • How popular is this Ireland to Southampton flight route?

    Within the past month, 104 users have taken a look at flights from Ireland to Southampton Eastleigh.

  • How long is the flight from Ireland to Southampton?

    Departing from Ireland to Southampton will take you 1h 45m. The distance from Ireland to Southampton is about 268 mi. Generally, flights for this route are direct.

  • What are the most popular routes from Ireland to Southampton?

    While some choose either Cork - Southampton Eastleigh or Knock Intl - Southampton Eastleigh, Dublin - Southampton Eastleigh is the most popular route from Ireland to Southampton.

  • What are the most reliable airlines from Ireland to Southampton?

    No one likes to see their flight delayed. When booking a flight from Ireland to Southampton consider choosing Qatar Airways (70%), Aer Lingus (70%) or Emerald Airlines (70%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Ireland to Southampton?

    Looking at all options, your cheapest flight can be booked for £40. While the most popular route (Dublin - Southampton Eastleigh) can be booked for £86 on average, our data indicates £102 when flying from Ireland to Southampton.

  • Can I find deals for flights from Ireland to Southampton that include hotel bookings?

    Yes. In addition to deals on Ireland to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Southampton.

  • Can I find deals for business class flights from Ireland to Southampton?

    Yes. Cheapflights offers flight deals from Ireland to Southampton 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 Ireland to Southampton?

    Currently, January is the cheapest month in which you can book a flight from Ireland to Southampton (average of £21). Flying from Ireland to Southampton in April is currently the most expensive (average of £34). 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.

See more FAQs

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Alternative routes for Ireland to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Ireland to Southampton

Discover the top airline that operate flights from Ireland to Southampton. 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 25 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£83Average£152FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ireland to Southampton?

When you search for this flight from Ireland to Southampton, 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 Ireland to Southampton?

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 Ireland to Southampton.

Can Cheapflights find flights from Ireland to Southampton with no change fees?

Certainly. Search results for flights to Southampton from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Of course! You can now track prices for flights from Ireland to Southampton 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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