€43 Find Cheap Flights from Southampton to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Southampton to Ireland departing on 29/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flights Deals

Best Ireland Flight Deals from Southampton

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect€75
Cork
Cork1 stop€220
Dublin
Dublindirect€75
Cork
Cork1 stop€220

Cheap Flights from Southampton to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Southampton to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Southampton to Ireland

Wed, 9 Jul - Wed, 16 Jul
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
Aer Lingus Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
€75Aer Lingus
Find Deal
Mon, 1 Sep - Thu, 4 Sep
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
Aer Lingus Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
€85Aer Lingus
Find Deal
Thu, 24 Jul - Tue, 29 Jul
 Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
 Logo
18:20 - 10:20DUB-SOU
16h 00m1 stop
€132
Find Deal
Wed, 9 Jul - Wed, 16 Jul
 Logo
10:50 - 09:10SOU-DUB
22h 20m1 stop
 Logo
06:25 - 08:05DUB-SOU
1h 40mdirect
€154
Find Deal
Wed, 2 Jul - Mon, 7 Jul
KLM Logo
09:20 - 16:40SOU-DUB
7h 20m1 stop
KLM Logo
20:45 - 08:50DUB-SOU
12h 05m1 stop
€182KLM
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Thu, 24 Jul - Mon, 28 Jul
KLM Logo
09:20 - 20:15SOU-DUB
10h 55m1 stop
KLM Logo
20:45 - 08:50DUB-SOU
12h 05m1 stop
€183KLM
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Fri, 25 Jul - Mon, 28 Jul
British Airways Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
British Airways Logo
17:50 - 19:30DUB-SOU
1h 40mdirect
€257British Airways
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Wed, 2 Jul - Thu, 3 Jul
British Airways Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
British Airways Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
€259British Airways
Find Deal
Thu, 24 Jul - Mon, 28 Jul
Blue Islands Logo
19:20 - 12:20SOU-DUB
17h 00m1 stop
Blue Islands Logo
13:00 - 08:05DUB-SOU
19h 05m1 stop
€624Blue Islands
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Thu, 24 Jul - Mon, 28 Jul
Blue Islands Logo
19:20 - 12:20SOU-DUB
17h 00m1 stop
Blue Islands Logo
13:00 - 08:05DUB-SOU
19h 05m1 stop
€625Blue Islands
Find Deal
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KAYAK's insights & trends for Southampton to Ireland flights

Get data-powered insights and trends into flights from Southampton to Ireland to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest Southampton to Ireland flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Southampton to Ireland.

The cheapest ticket to Ireland from Southampton found in the last 72 hours was to Dublin, at €124 return. The most popular route is from Southampton (SOU) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €124.

What is the cheapest month to fly from Southampton to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Southampton to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Southampton to Ireland is January, when tickets cost €124 (return) on average. On the other hand, the most expensive months are June and August, when the average cost of return tickets is €196 and €184 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Southampton to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Southampton to Ireland, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.


Good to know

Low seasonJuly
High seasonApril
Cheapest flight€43
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly (1% more expensive on average)
Flight from Southampton to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Southampton to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Southampton to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Southampton to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Southampton to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Southampton to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Southampton to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southampton to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Southampton to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally at night, when retur flights cost €165 on average. The most expensive time of day to fly to Ireland is generally in the morning, which is peak travel time and where the average cost of a ticket is €178.

Top airline flying from Southampton to Ireland

 
Need help choosing which airline to fly with from Southampton to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Aer LingusOverall score based on 1117 reviews
7.2Boarding
6.4Food
7.9Crew
7.0Comfort
6.8Entertainment
Airline reviews

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

10.0 ExcellentAnonymous, Jun 2025MAN - MCO
Read more Aer Lingus reviews

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Everything you need to know for your flight from Southampton to Ireland

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