€47 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 7/10. 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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Flight Deals

Best Ireland Flight Deals from Southampton

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect€110
Cork
Cork1 stop€221
Dublin
Dublindirect€110
Cork
Cork1 stop€221

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

Sat, 13 Dec - Tue, 16 Dec
Aer Lingus Logo
09:30 - 11:10SOU-DUB
1h 40mdirect
Aer Lingus Logo
13:55 - 15:35DUB-SOU
1h 40mdirect
€110Aer Lingus
Find Deal
Tue, 7 Oct - Wed, 29 Oct
 Logo
12:25 - 16:55SOU-DUB
4h 30m1 stop
 Logo
10:10 - 11:55DUB-SOU
1h 45mdirect
€111
Find Deal
Sat, 13 Dec - Mon, 15 Dec
Aer Lingus Logo
09:30 - 11:10SOU-DUB
1h 40mdirect
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
€112Aer Lingus
Find Deal
Sat, 13 Dec - Sun, 14 Dec
Aer Lingus Logo
09:30 - 11:10SOU-DUB
1h 40mdirect
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
€113Aer Lingus
Find Deal
Wed, 8 Oct - Sun, 12 Oct
 Logo
09:00 - 17:15SOU-DUB
8h 15m1 stop
 Logo
06:55 - 08:35DUB-SOU
1h 40mdirect
€115
Find Deal
Wed, 15 Oct - Tue, 21 Oct
 Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
 Logo
18:20 - 08:30DUB-SOU
14h 10m1 stop
€116
Find Deal
Fri, 10 Oct - Sun, 12 Oct
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
Aer Lingus Logo
06:55 - 08:35DUB-SOU
1h 40mdirect
€117Aer Lingus
Find Deal
Fri, 13 Feb - Mon, 16 Feb
KLM Logo
17:30 - 16:20SOU-DUB
22h 50m1 stop
KLM Logo
13:25 - 08:50DUB-SOU
19h 25m1 stop
€187KLM
Find Deal
Sun, 12 Oct - Sun, 19 Oct
KLM Logo
09:20 - 22:25SOU-ORK
13h 05m1 stop
KLM Logo
17:10 - 08:45ORK-SOU
15h 35m1 stop
€221KLM
Find Deal
Thu, 30 Oct - Thu, 6 Nov
KLM Logo
18:05 - 23:25SOU-ORK
5h 20m1 stop
KLM Logo
06:00 - 08:05ORK-SOU
26h 05m1 stop
€270KLM
Find Deal
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Southampton found in the last 72 hours was to Dublin, at €1,618 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 €1,618.

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 €123 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €203 and €180 respectively.

What’s the cheapest day of the week to fly from Southampton to Ireland?

The average price of all round-trip flights from Southampton to Ireland clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ireland on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Southampton to Ireland. For your return ticket, we recommend flying on a Tuesday and avoiding Wednesdays for the best deals.

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 a flight from Southampton to Ireland, you should book around 4 weeks before departure, which saves you about 28% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight€47
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 2% lower 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 €399.

Reviews of the 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.
7.2
Aer LingusOverall score based on 1270 reviews
7.1Comfort
6.9Entertainment
6.5Food
8.0Crew
7.3Boarding
Airline reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

6.0 GoodAnonymous, Sept 2025IND - DUB
Read more Aer Lingus reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Coming from the EU to the USA, Aer Lingus is a very good choice. You clear U.S. border control while still at the departure airport, so when you land in the States, you don’t need to go through the entry process again — very efficient and fast. In terms of comfort, Aer Lingus is better than the usual EU carriers like KLM, Lufthansa, or Air France, and also better than United. There’s more legroom, and the crew is helpful and kind. The food is average but slightly better than most airlines. Overall, the crew is definitely better than on American Airlines, though not quite at the level of Virgin.

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

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

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