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Cheap flights from Ireland to Southampton from £48

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SOU
27 Apr — 4 May1
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 28 March 2026.

Sun 10/506:55
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Sun 17/520:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Deal found 26/3£98
Mon 11/515:10
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Mon 18/517:20
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Deal found 27/3£98
Sat 4/417:50
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Sun 5/417:20
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Deal found 27/3£101
Fri 24/407:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Mon 27/420:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Deal found 24/3£101
Sat 11/417:50
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Mon 13/420:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Deal found 26/3£103
Fri 24/407:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Fri 1/517:20
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Deal found 27/3£104
Wed 22/419:30
DUB
-
SOU
1 stop13h 05m
Multiple Airlines
Wed 29/412:30
SOU
-
DUB
1 stop11h 05m
Multiple Airlines
Deal found 25/3£106
Fri 8/507:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Fri 15/520:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Deal found 24/3£107
Mon 27/407:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Wed 29/409:20
SOU
-
DUB
Nonstop1h 40m
Aer Lingus
Deal found 24/3£110
Wed 29/406:20
DUB
-
SOU
1 stop5h 40m
Multiple Airlines
Sun 3/509:20
SOU
-
DUB
Nonstop1h 40m
Multiple Airlines
Deal found 27/3£110
Tue 12/505:45
ORK
-
SOU
1 stop11h 30m
Multiple Airlines
Tue 19/518:10
SOU
-
ORK
1 stop14h 35m
Multiple Airlines
Deal found 28/3£145
Fri 8/514:15
ORK
-
SOU
2 stops17h 05m
Multiple Airlines
Fri 15/506:50
SOU
-
ORK
1 stop10h 20m
Multiple Airlines
Deal found 24/3£185

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 28 March 2026.

Round-trip from

£98

One-way from

£48

Popular in

June

Cheapest in

January

Average price

£77

Good round-trip deal

£193 or less
Aer Lingus
  • Aer Lingus
  • 10/5-17/5
  • Nonstop
  • 3h 15m total
  • Ireland to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 20/5
  • Nonstop
  • 1h 40m total
  • Ireland to Southampton
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip 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 28 March 2026.
Use the filters below to find and compare flights from Ireland to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkSouthampton

ORK - SOU

ORKSOU

Cork

Tue 12/5

05:45-17:15

1 stop11h 30m

Southampton Eastleigh

Tue 19/5

18:10-08:45

1 stop14h 35m

£145
Fastest return journey

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 4/5

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 4/5

20:00-21:35

Nonstop1h 35m

£146

CorkSouthampton

ORK - SOU

ORKSOU

Cork

Fri 8/5

14:15-07:20

2 stops17h 05m

Southampton Eastleigh

Fri 15/5

06:50-17:10

1 stop10h 20m

£185

KnockSouthampton

NOC - SOU

NOCSOU

Knock Intl

Mon 13/4

09:00-19:30

2 stops10h 30m

Southampton Eastleigh

Fri 17/4

12:20-08:00

2 stops19h 40m

£193

CorkSouthampton

ORK - SOU

ORKSOU

Cork

Sat 11/4

16:50-07:55

1 stop15h 05m

Southampton Eastleigh

Wed 15/4

12:30-09:25

2 stops20h 55m

£205

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 9/4

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 13/4

20:00-21:35

Nonstop1h 35m

£246

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 12/5

12:45-20:45

1 stop8h 00m

Southampton Eastleigh

Wed 13/5

20:00-21:35

Nonstop1h 35m

£307

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sun 21/6

15:10-16:50

Nonstop1h 40m

Southampton Eastleigh

Fri 26/6

06:50-15:30

1 stop8h 40m

£313

CorkSouthampton

ORK - SOU

ORKSOU

Cork

Sat 9/5

17:10-08:45

1 stop15h 35m

Southampton Eastleigh

Wed 13/5

17:20-16:35

1 stop23h 15m

£332

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sun 21/6

05:55-16:50

1 stop10h 55m

Southampton Eastleigh

Fri 26/6

17:20-22:25

1 stop5h 05m

£340

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 28 resultsSorted by cheapest first
1
2
3

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, May is the cheapest month in which you can book a flight from Ireland to Southampton (average of £28). Flying from Ireland to Southampton in December is currently the most expensive (average of £41). 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 28 March 2026.

When flying from Ireland to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 102 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 16% 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 28 March 2026.
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
1,491 reviews
Check prices

Food

6.6

Crew

8.1

Boarding

7.4

Comfort

7.2

Overall

7.2

Entertainment

7.0

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
1,491 reviews
Aer Lingus
7.2
Good
1,491 reviews
Check prices

Food

6.6

Crew

8.1

Boarding

7.4

Comfort

7.2

Overall

7.2

Entertainment

7.0

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, 91 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 40m. 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 (79%), Emerald Airlines (79%) or British Airways (79%) 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 £170. While the most popular route (Dublin - Southampton Eastleigh) can be booked for £98 on average, our data indicates £199 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, May is the cheapest month in which you can book a flight from Ireland to Southampton (average of £28). Flying from Ireland to Southampton in December is currently the most expensive (average of £41). 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 28 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£84Average£153FlexibilityNo 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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