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Cheap flights from Southampton to Ireland from £45

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — DUB
1 Sep — 8 Sep1
1 adult

Cheap flight deals from Southampton to Ireland

Keep the following information in mind while searching for Southampton to Ireland flight deals. Data was last updated 27 August 2025.

Round-trip from

£111

One-way from

£45

Popular in

December

Cheapest in

January

Average price

£82

Good round-trip deal

£131 or less

Good one-way deal

£89 or less
Aer Lingus
  • Aer Lingus
  • 26/9-2/10
  • 1 total stop
  • 16h 40m total
  • Southampton to Ireland
Search Deals
Aer Lingus
  • Aer Lingus
  • 9/10
  • Nonstop
  • 1h 35m total
  • Southampton to Ireland
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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

Find flight deals from Southampton to Ireland

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 27 August 2025.

Fri 26/920:15SOU - DUB
1 stop15h 00mMultiple Airlines
Thu 2/1007:00DUB - SOU
Nonstop1h 40mMultiple Airlines
Deal found 26/8£111
Fri 14/1120:10SOU - DUB
Nonstop1h 40mAer Lingus
Sun 16/1107:00DUB - SOU
Nonstop1h 45mAer Lingus
Deal found 26/8£112
Fri 10/1020:00SOU - DUB
Nonstop1h 35mMultiple Airlines
Tue 14/1021:00DUB - SOU
1 stop11h 30mMultiple Airlines
Deal found 25/8£116
Fri 26/920:00SOU - DUB
Nonstop1h 35mAer Lingus
Sun 28/906:55DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 25/8£117
Fri 26/920:00SOU - DUB
Nonstop1h 35mAer Lingus
Tue 30/906:35DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 26/8£117
Thu 9/1020:00SOU - DUB
Nonstop1h 35mMultiple Airlines
Thu 16/1019:55DUB - SOU
1 stop23h 00mMultiple Airlines
Deal found 24/8£119
Mon 15/917:15SOU - DUB
Nonstop1h 35mAer Lingus
Wed 17/906:25DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 25/8£121
Mon 22/908:05SOU - DUB
1 stop11h 55mMultiple Airlines
Sun 29/306:55DUB - SOU
Nonstop1h 40mMultiple Airlines
Deal found 25/8£122
Mon 22/920:00SOU - DUB
Nonstop1h 35mAer Lingus
Sun 29/306:55DUB - SOU
Nonstop1h 40mAer Lingus
Deal found 25/8£126
Sat 11/1018:05SOU - ORK
1 stop4h 20mKLM
Sun 12/1017:10ORK - SOU
1 stop15h 35mKLM
Deal found 25/8£200
Wed 3/909:00SOU - ORK
2 stops24h 30mMultiple Airlines
Wed 10/918:50ORK - SOU
2 stops25h 25mMultiple Airlines
Deal found 26/8£221
Fri 10/1020:15SOU - ORK
2 stops17h 00mMultiple Airlines
Fri 17/1008:30ORK - SOU
2 stops10h 25mMultiple Airlines
Deal found 26/8£225

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 27 August 2025.
Use the filters below to find and compare flights from Southampton to Ireland that are best for you.

Fly from

Southampton

Fly to

Ireland

Route

Depart

Return

Price

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 26/9

20:15-11:15

1 stop15h 00m

Dublin

Thu 2/10

07:00-08:40

Nonstop1h 40m

£111

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 14/11

20:10-21:50

Nonstop1h 40m

Dublin

Sun 16/11

07:00-08:45

Nonstop1h 45m

£112

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 26/9

20:00-21:35

Nonstop1h 35m

Dublin

Thu 2/10

07:00-08:40

Nonstop1h 40m

£113

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 10/10

20:00-21:35

Nonstop1h 35m

Dublin

Tue 14/10

21:00-08:30

1 stop11h 30m

£116

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Wed 19/11

20:10-21:50

Nonstop1h 40m

Dublin

Sat 22/11

07:00-08:45

Nonstop1h 45m

£116

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 26/9

20:00-21:35

Nonstop1h 35m

Dublin

Sun 28/9

06:55-08:35

Nonstop1h 40m

£117

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 20/11

20:10-21:50

Nonstop1h 40m

Dublin

Sat 22/11

07:00-08:45

Nonstop1h 45m

£117

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 26/9

20:00-21:35

Nonstop1h 35m

Dublin

Tue 30/9

06:35-08:15

Nonstop1h 40m

£117

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Sat 11/10

18:05-22:25

1 stop4h 20m

Cork

Sun 12/10

17:10-08:45

1 stop15h 35m

£200

SouthamptonCork

SOU - ORK

SOUORK

Southampton Eastleigh

Sat 11/10

18:05-22:25

1 stop4h 20m

Cork

Mon 13/10

17:05-08:45

1 stop15h 40m

£221

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 25 results
1
2
3

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, January is the cheapest month in which you can book a flight from Southampton to Ireland (average of £71). Flying from Southampton to Ireland in August is currently the most expensive (average of £94). 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 27 August 2025.

It’s optimal to fly from Southampton to Ireland in the afternoon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the morning.

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 27 August 2025.
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
1,384 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,384 reviews
KLM
7.8
Good
1,384 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.2
Good
1,238 reviews
KLM
7.8
Good
1,384 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Ryanair
6.9
Okay
5,152 reviews
KLM
7.8
Good
1,384 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.7
Okay
7,310 reviews
KLM
7.8
Good
1,384 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 1,485 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?

    Aer Lingus and KLM can get you from Southampton to Ireland in just under 1h 40m. Your travel time can differ by up to 2h 40m. 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 (90%), Aer Lingus (78%) or Emerald Airlines (78%) 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 £134, our data indicates the cheapest price to be £66. The most popular route (Southampton Eastleigh - Dublin), is priced around £79.

  • 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, January is the cheapest month in which you can book a flight from Southampton to Ireland (average of £71). Flying from Southampton to Ireland in August is currently the most expensive (average of £94). 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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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 27 August 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£25Average£50FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£71Average£211FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£82Average£138FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
KLMCheapest£126Average£179FlexibilityNo 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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