What is the cheapest airline that flies from Southampton Eastleigh to Ireland?

Aer Lingus, KLM, and British Airways are the most popular carriers operating from Southampton Eastleigh to Ireland

How many flights depart from Southampton to Ireland on average per day?

4 flights are operational daily from Southampton to Ireland as of August 2025. The most popular departure time for this route is 09:00, with 53% of flights per day taking off at midday.

How many flights depart from Southampton to Ireland on average per week?

34 flights are operational weekly from Southampton to Ireland as of August 2025. The most popular departure day for this route is Thu, with 21% of flights per week taking off on this day.

Which airlines fly to Ireland?

Ryanair, Aer Lingus and British Airways are the top three most popular airlines that fly to Ireland from Southampton according to our data. Ryanair is the first choice among our users, with 68% of people opting to fly with this airline when travelling to Ireland. Keep in mind that there are 4 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Southampton Eastleigh Airport to Ireland?

Prices for flights from Southampton Eastleigh Airport to Ireland refresh daily.

How many operators does momondo search for flights from Southampton Eastleigh Airport to Ireland?

The number of operators available for flights from Southampton Eastleigh Airport to Ireland is 4 as of August 2025.

How old do you have to be to fly from Southampton Eastleigh Airport to Ireland?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Southampton Eastleigh Airport to Ireland.

What documentation or ID do you need to fly to Ireland?

The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£45 Cheap Flights from Southampton to Ireland in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Southampton to Ireland

Round-trip

One-way

Last minute

Direct

Cheap return flights

20:00 - 21:35SOU-DUB

1h 35mdirect

07:00 - 08:40DUB-SOU

1h 40mdirect

£111Aer Lingus

Find Deal

Thu, 25 Sep - Fri, 26 Sep

20:10 - 21:50SOU-DUB

1h 40mdirect

07:00 - 08:45DUB-SOU

1h 45mdirect

£112Aer Lingus

Find Deal

Fri, 14 Nov - Sun, 16 Nov

20:10 - 21:50SOU-DUB

1h 40mdirect

07:00 - 08:45DUB-SOU

1h 45mdirect

£113Aer Lingus

Find Deal

Fri, 14 Nov - Sun, 16 Nov

20:00 - 21:35SOU-DUB

1h 35mdirect

14:10 - 15:45DUB-SOU

1h 35mdirect

£115Aer Lingus

Find Deal

Thu, 25 Sep - Sat, 27 Sep

20:00 - 21:35SOU-DUB

1h 35mdirect

06:55 - 08:35DUB-SOU

1h 40mdirect

£116Aer Lingus

Find Deal

Fri, 26 Sep - Sun, 28 Sep

20:00 - 21:35SOU-DUB

1h 35mdirect

06:35 - 08:15DUB-SOU

1h 40mdirect

£117Aer Lingus

Find Deal

Fri, 26 Sep - Tue, 30 Sep

20:00 - 21:35SOU-DUB

1h 35mdirect

08:10 - 18:55DUB-SOU

10h 45m1 stop

£121

Find Deal

Fri, 3 Oct - Fri, 10 Oct

09:20 - 16:40SOU-DUB

7h 20m1 stop

05:55 - 17:30DUB-SOU

11h 35m1 stop

£159KLM

Find Deal

Sat, 4 Oct - Sat, 11 Oct

17:30 - 16:20SOU-DUB

22h 50m1 stop

05:55 - 08:10DUB-SOU

26h 15m1 stop

£163KLM

Find Deal

Fri, 14 Nov - Sun, 16 Nov

17:35 - 22:25SOU-DUB

4h 50m1 stop

20:45 - 08:45DUB-SOU

12h 00m1 stop

£169KLM

Find Deal

Fri, 10 Oct - Sun, 12 Oct

Aer Lingus flights from Southampton to Ireland

Our best Aer Lingus deals on Southampton to Ireland flight tickets

Aer Lingus

25 Sept

SOU20:00Southampton Eastleigh

1h 35m

DUB21:35Dublin

26 Sept

DUB07:00Dublin

1h 40m

SOU08:40Southampton Eastleigh

£111

Find similar

Aer Lingus

14 Nov

SOU20:10Southampton Eastleigh

1h 40m

DUB21:50Dublin

16 Nov

DUB07:00Dublin

1h 45m

SOU08:45Southampton Eastleigh

£112

Find similar

Aer Lingus

14 Nov

SOU20:10Southampton Eastleigh

1h 40m

DUB21:50Dublin

16 Nov

DUB07:00Dublin

1h 45m

SOU08:45Southampton Eastleigh

£113

Find similar

KLM flights from Southampton to Ireland

Our best KLM deals on Southampton to Ireland flight tickets

KLM

4 Oct

SOU09:20Southampton Eastleigh

7h 20m

1 stop

DUB16:40Dublin

11 Oct

DUB05:55Dublin

11h 35m

1 stop

SOU17:30Southampton Eastleigh

£159

Find similar

KLM

14 Nov

SOU17:30Southampton Eastleigh

22h 50m

1 stop

DUB16:20Dublin

16 Nov

DUB05:55Dublin

26h 15m

1 stop

SOU08:10Southampton Eastleigh

£163

Find similar

KLM

10 Oct

SOU17:35Southampton Eastleigh

4h 50m

1 stop

DUB22:25Dublin

12 Oct

DUB20:45Dublin

12h 00m

1 stop

SOU08:45Southampton Eastleigh

£169

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 25/9

20:00-21:35

Nonstop1h 35m

Dublin

Fri 26/9

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 14/11

20:10-21:50

Nonstop1h 40m

Dublin

Sun 16/11

07:00-08:45

Nonstop1h 45m

£113

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Thu 25/9

20:00-21:35

Nonstop1h 35m

Dublin

Sat 27/9

14:10-15:45

Nonstop1h 35m

£115

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

£116

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

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 3/10

20:00-21:35

Nonstop1h 35m

Dublin

Fri 10/10

08:10-18:55

1 stop10h 45m

£121

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Sat 4/10

09:20-16:40

1 stop7h 20m

Dublin

Sat 11/10

05:55-17:30

1 stop11h 35m

£159

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 14/11

17:30-16:20

1 stop22h 50m

Dublin

Sun 16/11

05:55-08:10

1 stop26h 15m

£163

SouthamptonDublin

SOU - DUB

SOUDUB

Southampton Eastleigh

Fri 10/10

17:35-22:25

1 stop4h 50m

Dublin

Sun 12/10

20:45-08:45

1 stop12h 00m

£169

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Southampton to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ireland?

The month of January is, on average, the cheapest month to fly to Ireland from Southampton, with most prices found around £106. If you’re not able to fly to Ireland in January, then February is your next best option. Flight prices from Southampton to Ireland during February average around £122.

What is the cheapest day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Thursday when prices can be found for as low as £138. This is often the case because there is less demand to fly during this day of the week. Flights from Southampton to Ireland on a Sunday will generally be more expensive and average around £164. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ireland?

At midday is the cheapest time of day to fly from Southampton to Ireland when you can find flight prices for as low as £80. Flying to Ireland at midday is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly in the morning, with an average ticket price of £157. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Southampton Eastleigh to Ireland flight route?

Fly from Southampton Eastleigh to Dublin for the best Southampton Eastleigh - Ireland flight prices

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

You are more likely to see cheaper flights to Ireland from Southampton when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around £139 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Southampton for as low as £116 on momondo.

What cabin class options are available on Southampton Eastleigh to Ireland flights?

There are 2 cabin classes available to choose from on Southampton Eastleigh to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Southampton to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to Ireland

Best price found	£89
Fastest flight time	1h 35m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Ireland	1 airport

The best one-way flight to Ireland from Southampton in the past 72 hours is £89. The best return flight deal from Southampton to Ireland found on momondo in the last 72 hours is £128.

The fastest flight from Southampton to Ireland takes 1h 35m

Direct flights go from Southampton to Ireland on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airline offering direct flights is British Airways..

There is 1 airport near Ireland: Dublin (DUB)

Search flight deals

When did momondo last update prices for flights from Southampton Eastleigh Airport to Ireland?
Prices for flights from Southampton Eastleigh Airport to Ireland refresh daily.
How many operators does momondo search for flights from Southampton Eastleigh Airport to Ireland?
The number of operators available for flights from Southampton Eastleigh Airport to Ireland is 4 as of August 2025.
How old do you have to be to fly from Southampton Eastleigh Airport to Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Southampton Eastleigh Airport to Ireland.
What documentation or ID do you need to fly to Ireland?
The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Southampton to Ireland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Southampton to Ireland is ATR 72-201 / 202 (78.69% of total bookings). The next most popular plane models are Airbus A320neo (5.57%), Airbus A321neo (2.40%), and Boeing 737-800 Passenger/BBJ2 (winglets) (2.40%).

Best airlines flying from Southampton to Ireland

Compare and see reviews for airlines that fly from Southampton to Ireland with momondo

Airline	Rating	Free Cancellation	Price
Ryanair	PriceFrom £25	Free Cancellation	Rating 6.8 5,155 reviews	Search Ryanair flights
British Airways	PriceFrom £71	Free Cancellation	Rating 6.7 7,291 reviews	Search British Airways flights
Aer Lingus	PriceFrom £82	Free Cancellation	Rating 7.1 1,228 reviews	Search Aer Lingus flights
KLM	PriceFrom £125	Free Cancellation	Rating 7.8 1,388 reviews	Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Southampton to Ireland for you.

Can I find flights from Southampton to Ireland with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Southampton to Ireland flights to just show those with flexible booking policies.

How can momondo help me find flights from Southampton to Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Southampton to Ireland.

I’m not ready to book a flight from Southampton to Ireland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Southampton to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 26/8

Tue 2/9

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Popular Cities in Ireland

Flights to Dublinfrom £30

Flights to Corkfrom £32

Flights to Shannon, Clarefrom £31

Flights to Knockfrom £31

Flights to Milltown (Kerry)from £34

Flights to Donegalfrom £119

Cheap flights from Southampton to Ireland from £45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to Ireland departing on 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Southampton to Ireland

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Aer Lingus flights from Southampton to Ireland

Our best Aer Lingus deals on Southampton to Ireland flight tickets

KLM flights from Southampton to Ireland

Our best KLM deals on Southampton to Ireland flight tickets

momondo Fare Finder

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

See travel insights to Ireland from

How to get the cheapest flight ticket from Southampton to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is, on average, the cheapest month to fly to Ireland from Southampton, with most prices found around £106. If you’re not able to fly to Ireland in January, then February is your next best option. Flight prices from Southampton to Ireland during February average around £122.

What is the cheapest day to depart on your flight to Ireland?

What is the cheapest time of day to depart on your flight to Ireland?

What is the cheapest Southampton Eastleigh to Ireland flight route?

Fly from Southampton Eastleigh to Dublin for the best Southampton Eastleigh - Ireland flight prices

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

What cabin class options are available on Southampton Eastleigh to Ireland flights?

There are 2 cabin classes available to choose from on Southampton Eastleigh to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Southampton Eastleigh to Ireland?

Aer Lingus, KLM, and British Airways are the most popular carriers operating from Southampton Eastleigh to Ireland

Which airlines fly to Ireland?

How many flights depart from Southampton to Ireland on average per day?

4 flights are operational daily from Southampton to Ireland as of August 2025. The most popular departure time for this route is 09:00, with 53% of flights per day taking off at midday.

How many flights depart from Southampton to Ireland on average per week?

34 flights are operational weekly from Southampton to Ireland as of August 2025. The most popular departure day for this route is Thu, with 21% of flights per week taking off on this day.

Cheap Southampton to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to Ireland

Best price found

Fastest flight time

Direct flights

Airports in Ireland

When did momondo last update prices for flights from Southampton Eastleigh Airport to Ireland?

How many operators does momondo search for flights from Southampton Eastleigh Airport to Ireland?

How old do you have to be to fly from Southampton Eastleigh Airport to Ireland?

What documentation or ID do you need to fly to Ireland?

What is the most popular plane model from Southampton to Ireland?

Best airlines flying from Southampton to Ireland

Compare and see reviews for airlines that fly from Southampton to Ireland with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to Ireland?

Can I find flights from Southampton to Ireland with flexible booking policies on momondo?

How can momondo help me find flights from Southampton to Ireland?

I’m not ready to book a flight from Southampton to Ireland right now. Can momondo alert me if prices change?

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo