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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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SOU
8 Jan — 15 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 9 December 2025.

Thu 11/1207:00DUB - SOU
Nonstop1h 45mAer Lingus
Mon 15/1216:05SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 7/12£119
Thu 11/1207:00DUB - SOU
Nonstop1h 45mMultiple Airlines
Mon 15/1219:55SOU - DUB
1 stop11h 35mMultiple Airlines
Deal found 7/12£122
Thu 18/1210:45ORK - SOU
1 stop27h 00mMultiple Airlines
Sun 21/1216:35SOU - ORK
1 stop14h 35mMultiple Airlines
Deal found 8/12£203
Mon 8/1207:00DUB - SOU
Nonstop1h 45mBritish Airways
Wed 10/1220:10SOU - DUB
Nonstop1h 40mBritish Airways
Deal found 7/12£234
Fri 12/1207:00DUB - SOU
Nonstop1h 45mBritish Airways
Mon 15/1220:10SOU - DUB
Nonstop1h 40mBritish Airways
Deal found 7/12£293
Sat 13/1207:00DUB - SOU
Nonstop1h 45mBritish Airways
Mon 15/1220:10SOU - DUB
Nonstop1h 40mBritish Airways
Deal found 7/12£338
Sat 27/1206:30DUB - SOU
1 stop5h 35mBritish Airways
Sun 28/1220:10SOU - DUB
Nonstop1h 40mBritish Airways
Deal found 8/12£388

Find flight deals from Ireland to Southampton

Keep the following information in mind while searching for Ireland to Southampton flight deals. Data was last updated 9 December 2025.

Round-trip from

£77

One-way from

£42

Popular in

April

Cheapest in

January

Average price

£88

Good round-trip deal

£81 or less

Good one-way deal

£44 or less
Aer Lingus
  • Aer Lingus
  • 21/1-28/1
  • Nonstop
  • 3h 20m total
  • Ireland to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 21/1
  • 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 (£1 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Ireland to Southampton Eastleigh.
Search Deals
Price to beat on a one-way flight from Ireland to Southampton Eastleigh.
Search Deals

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 9 December 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

Wed 21/1

10:10-11:55

Nonstop1h 45m

Southampton Eastleigh

Wed 28/1

12:25-14:00

Nonstop1h 35m

£77

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 15/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 19/1

20:10-21:50

Nonstop1h 40m

£82

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 22/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Thu 29/1

20:10-21:50

Nonstop1h 40m

£85

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

Fri 13/2

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 15/2

20:10-21:50

Nonstop1h 40m

£89

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 8/1

09:05-17:20

1 stop8h 15m

Southampton Eastleigh

Sun 11/1

20:10-21:50

Nonstop1h 40m

£119

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 5/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 12/1

12:05-20:20

2 stops8h 15m

£128

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 15/1

21:30-13:45

2 stops16h 15m

Southampton Eastleigh

Mon 19/1

12:05-21:30

1 stop9h 25m

£128

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 22/1

21:30-13:45

2 stops16h 15m

Southampton Eastleigh

Thu 29/1

17:55-22:25

1 stop4h 30m

£136

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Wed 21/1

10:10-11:55

Nonstop1h 45m

Southampton Eastleigh

Wed 28/1

12:00-21:10

1 stop9h 10m

£141

Flights are sorted by cheapest return flights first.

Deals found on 8/12

Showing 1-10 of 20 results
1
2

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 £33). 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 9 December 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 9 December 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 18% 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 early afternoon 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 9 December 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
1,389 reviews
Check prices

Crew

8.0

Boarding

7.4

Entertainment

6.9

Food

6.6

Comfort

7.1

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,389 reviews
Aer Lingus
7.2
Good
1,389 reviews
Check prices

Crew

8.0

Boarding

7.4

Entertainment

6.9

Food

6.6

Comfort

7.1

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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, 101 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 Aer Lingus (71%), Emerald Airlines (71%) or British Airways (71%) 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 £41. While the most popular route (Dublin - Southampton Eastleigh) can be booked for £83 on average, our data indicates £112 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 £33). 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 9 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£81Average£152FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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 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.

Can Cheapflights notify me if prices for flights from Ireland to Southampton become cheaper?

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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