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Cheap flights from Southampton to Ireland from £51

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — DUB
22 Jul — 29 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Ireland
Explore the most affordable flight options available from Southampton to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 June 2026.

Wed 15/709:20
SOU
-
DUB
Nonstop1h 40m
Aer Lingus
Wed 22/706:25
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 17/6£97
Thu 2/720:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Mon 6/707:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 18/6£98
Fri 14/817:20
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Sun 16/806:55
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 17/6£99
Mon 20/720:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Wed 22/706:25
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 17/6£100
Tue 4/820:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Tue 11/815:10
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 20/6£103
Thu 23/720:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Thu 30/707:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 19/6£105
Tue 11/820:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Thu 13/807:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 19/6£106
Mon 20/717:20
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Mon 27/707:00
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 20/6£107
Mon 24/820:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Wed 26/817:50
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 20/6£110
Thu 9/720:00
SOU
-
DUB
Nonstop1h 35m
Aer Lingus
Sun 26/706:55
DUB
-
SOU
Nonstop1h 40m
Aer Lingus
Deal found 18/6£113
Wed 2/910:45
SOU
-
ORK
2 stops22h 40m
Multiple Airlines
Fri 11/906:05
ORK
-
SOU
2 stops25h 15m
Multiple Airlines
Deal found 21/6£162
Mon 20/720:40
SOU
-
ORK
2 stops25h 05m
Multiple Airlines
Mon 27/721:05
ORK
-
SOU
2 stops22h 25m
Multiple Airlines
Deal found 20/6£173

Find flight deals from Southampton to Ireland

Keep the following information in mind while searching for Southampton to Ireland flight deals. Data was last updated 22 June 2026.

Round-trip from

£97

One-way from

£51

Popular in

December

Cheapest in

January

Average price

£81

Good round-trip deal

£138 or less

Good one-way deal

£91 or less
Aer Lingus
  • Aer Lingus
  • 15/7-22/7
  • Nonstop
  • 3h 20m total
  • Southampton to Ireland
Search Deals
Aer Lingus
  • Aer Lingus
  • 9/8
  • Nonstop
  • 1h 40m total
  • Southampton to Ireland
Search Deals
High demand for flights, 7% potential price rise
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 June 2026
Search Deals
Price to beat on a round-trip flight from Southampton Eastleigh to Ireland.
Search Deals
Price to beat on a one-way flight from Southampton Eastleigh to Ireland.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Ireland 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 22 June 2026.
Use the filters below to find and compare flights from Southampton to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 27/8

09:20-11:00

Nonstop1h 40m

Dublin

Tue 1/9

19:15-10:15

1 stop15h 00m

£136

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 14/8

20:00-21:35

Nonstop1h 35m

Dublin

Sun 16/8

20:30-08:20

1 stop11h 50m

£137

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 19/11

17:30-22:15

1 stop4h 45m

Dublin

Tue 24/11

13:25-17:00

1 stop3h 35m

£169

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Mon 20/7

20:40-21:45

2 stops25h 05m

Cork

Mon 27/7

21:05-19:30

2 stops22h 25m

£173

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Wed 2/9

10:45-18:50

1 stop8h 05m

Cork

Fri 11/9

19:20-07:20

1 stop12h 00m

£174

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Wed 29/7

18:25-23:55

1 stop5h 30m

Cork

Tue 4/8

08:15-10:15

2 stops26h 00m

£183

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Wed 8/7

09:20-23:55

2 stops14h 35m

Cork

Mon 13/7

07:30-19:30

2 stops12h 00m

£192

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Fri 7/8

20:00-10:55

2 stops14h 55m

Cork

Mon 10/8

20:55-16:50

2 stops19h 55m

£199

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Sun 5/7

14:45-22:45

1 stop8h 00m

Dublin

Sun 12/7

06:55-08:35

Nonstop1h 40m

£199

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Mon 17/8

18:25-08:05

1 stop13h 40m

Cork

Thu 27/8

21:00-07:20

2 stops34h 20m

£214

Flights are sorted by cheapest return flights first.

Deals found on 18/6

Showing 1-10 of 32 resultsSorted by cheapest first
1
2
3
4

Best time to book a flight from Southampton to Ireland

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

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

Currently, December is the cheapest month in which you can book a flight from Southampton to Ireland (average of £32). Flying from Southampton to Ireland in March is currently the most expensive (average of £101). 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 SOU to IE?

Find hourly flight availability from Southampton to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 June 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to Ireland as you normally would.

Weekly flight availability from Southampton to Ireland

Explore weekly flight availability from Southampton to Ireland. 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 22 June 2026.

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

How far ahead should I book a flight from Southampton to Ireland?

The best time to book flights from Southampton to Ireland is 66 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.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated 22 June 2026.
Read reviews from past customers who have flown with KLM,Aer Lingus, andRyanair from Southampton to Ireland. 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.
KLM
7.8
Good
1,530 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,530 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Aer Lingus
7.3
Good
1,613 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Ryanair
6.9
Okay
5,417 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,064 reviews
KLM
7.8
Good
1,530 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

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

    Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to Ireland. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

  • How popular is this Southampton to Ireland flight route?

    The Southampton Eastleigh to Ireland flight path was viewed by 983 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Southampton to Ireland?

    KLM and British Airways can get you from Southampton to Ireland in just under 1h 35m. Your travel time can differ by up to 3h 10m. There are 268 mi between Southampton and Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    No one likes to see their flight delayed. When booking a flight from Southampton to Ireland consider choosing Qatar Airways (93%), Aer Lingus (90%) or Emerald Airlines (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Southampton to Ireland?

    Looking for the cheapest flight from Southampton to Ireland? While on average our users pay £147, our data indicates the cheapest price to be £58. The most popular route (Southampton Eastleigh - Dublin), is priced around £103.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Southampton to Ireland (average of £32). Flying from Southampton to Ireland in March is currently the most expensive (average of £101). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Southampton to Ireland

Discover the top 4 airlines that operate flights from Southampton to Ireland. 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 22 June 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£34Average£53FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£98Average£146FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£107Average£217FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£123Average£171FlexibilityNo cancel feeOn-time75%
Search KLM 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 Southampton to Ireland?

Cheapflights helps you search for flights from Southampton to Ireland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Ireland?

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 Southampton to Ireland.

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

Certainly. Search results for flights to Ireland from Southampton 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 Southampton to Ireland become cheaper?

Yes, Cheapflights offers price alerts on Southampton to Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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