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Cheap flights from Ireland to Southampton from £29

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SOU
8 Sep — 15 Sep1
1 adult

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 3 September 2025.

Round-trip from

£66

One-way from

£29

Popular in

August

Cheapest in

January

Average price

£65

Good round-trip deal

£114 or less

Good one-way deal

£132 or less
Aer Lingus
  • Aer Lingus
  • 6/10-8/10
  • Nonstop
  • 3h 15m total
  • Ireland to Southampton
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Aer Lingus
  • Aer Lingus
  • 12/10
  • Nonstop
  • 1h 40m total
  • Ireland to Southampton
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£2 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 September 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

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 3 September 2025.

Mon 6/1007:30DUB - SOU
Nonstop1h 40mAer Lingus
Wed 8/1020:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 3/9£66
Mon 6/1007:30DUB - SOU
Nonstop1h 40mAer Lingus
Tue 7/1020:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 3/9£69
Thu 9/1007:00DUB - SOU
Nonstop1h 40mAer Lingus
Mon 13/1020:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 2/9£80
Fri 17/1007:00DUB - SOU
Nonstop1h 40mAer Lingus
Fri 24/1020:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 2/9£88
Sun 12/1006:55DUB - SOU
Nonstop1h 40mAer Lingus
Sun 12/1020:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 3/9£90
Mon 6/1007:30DUB - SOU
Nonstop1h 40mMultiple Airlines
Wed 8/1009:00SOU - DUB
1 stop7h 55mMultiple Airlines
Deal found 3/9£99
Thu 18/907:00DUB - SOU
Nonstop1h 40mAer Lingus
Thu 18/920:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 3/9£101
Fri 17/1007:00DUB - SOU
Nonstop1h 40mMultiple Airlines
Mon 20/1020:30SOU - DUB
2 stops24h 25mMultiple Airlines
Deal found 2/9£104
Mon 29/1207:00DUB - SOU
Nonstop1h 45mAer Lingus
Sun 4/120:10SOU - DUB
Nonstop1h 40mAer Lingus
Deal found 3/9£107
Mon 6/1007:30DUB - SOU
Nonstop1h 40mMultiple Airlines
Tue 7/1012:25SOU - DUB
1 stop4h 50mMultiple Airlines
Deal found 3/9£107
Sat 27/907:00DUB - SOU
Nonstop1h 40mAer Lingus
Tue 30/920:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 3/9£108
Sat 11/1014:10DUB - SOU
Nonstop1h 35mAer Lingus
Mon 13/1020:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 3/9£109

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 3 September 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

Mon 6/10

07:30-09:10

Nonstop1h 40m

Southampton Eastleigh

Wed 8/10

20:00-21:35

Nonstop1h 35m

£66

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 6/10

07:30-09:10

Nonstop1h 40m

Southampton Eastleigh

Tue 7/10

20:00-21:35

Nonstop1h 35m

£69

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 9/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 13/10

20:00-21:35

Nonstop1h 35m

£80

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 17/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Fri 24/10

20:00-21:35

Nonstop1h 35m

£88

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sun 12/10

06:55-08:35

Nonstop1h 40m

Southampton Eastleigh

Sun 12/10

20:00-21:35

Nonstop1h 35m

£90

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 23/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Fri 24/10

20:00-21:35

Nonstop1h 35m

£90

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 6/10

07:30-09:10

Nonstop1h 40m

Southampton Eastleigh

Wed 8/10

09:00-16:55

1 stop7h 55m

£99

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 18/9

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Thu 18/9

20:00-21:35

Nonstop1h 35m

£101

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 17/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 20/10

20:30-20:55

2 stops24h 25m

£104

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 29/12

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 4/1

20:10-21:50

Nonstop1h 40m

£107

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 27 results
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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, September is the cheapest month in which you can book a flight from Ireland to Southampton (average of £203). Flying from Ireland to Southampton in November is currently the most expensive (average of £262). 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 3 September 2025.

It’s typically best to fly out from Ireland to Southampton in the morning. Doing so could potentially save you 12% 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 3 September 2025.

The most flights from IE0 to SOU are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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 3 September 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
1,250 reviews
Check prices

Food

6.5

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.3

Comfort

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Aer Lingus
7.2
Good
1,250 reviews
Aer Lingus
7.2
Good
1,250 reviews
Check prices

Food

6.5

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.3

Comfort

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.

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, 102 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 (76%), Emerald Airlines (76%) or British Airways (76%) 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 £62. While the most popular route (Dublin - Southampton Eastleigh) can be booked for £116 on average our data indicates £148 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, September is the cheapest month in which you can book a flight from Ireland to Southampton (average of £203). Flying from Ireland to Southampton in November is currently the most expensive (average of £262). 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

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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 3 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£80Average£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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