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Cheap flights from Ireland to London from €52

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to London departing on 28/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to London

Recent return flight deals from Ireland to London

Aer Lingus Logo
06:35 - 08:15DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€76Aer Lingus
Find Deal
Tue, 7 Oct - Tue, 21 Oct
Aer Lingus Logo
06:35 - 08:15DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€89Aer Lingus
Find Deal
Tue, 7 Oct - Tue, 21 Oct
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
€97Aer Lingus
Find Deal
Mon, 9 Feb - Thu, 12 Feb
Aer Lingus Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€98Aer Lingus
Find Deal
Thu, 2 Oct - Mon, 6 Oct
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
€99Aer Lingus
Find Deal
Mon, 9 Feb - Fri, 13 Feb
Aer Lingus Logo
10:10 - 11:55DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
€105Aer Lingus
Find Deal
Tue, 10 Feb - Thu, 12 Feb
Multiple Airlines Logo
21:00 - 08:30DUB-SOU
11h 30m1 stop
Multiple Airlines Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€120Multiple Airlines
Find Deal
Tue, 14 Oct - Tue, 21 Oct
KLM Logo
08:50 - 17:00DUB-SOU
8h 10m1 stop
KLM Logo
17:30 - 22:10SOU-DUB
4h 40m1 stop
€199KLM
Find Deal
Tue, 10 Feb - Fri, 13 Feb
KLM Logo
08:55 - 17:00DUB-SOU
8h 05m1 stop
KLM Logo
17:35 - 22:25SOU-DUB
4h 50m1 stop
€203KLM
Find Deal
Thu, 2 Oct - Mon, 6 Oct
KLM Logo
20:45 - 08:45DUB-SOU
12h 00m1 stop
KLM Logo
09:20 - 20:15SOU-DUB
10h 55m1 stop
€204KLM
Find Deal
Fri, 3 Oct - Tue, 7 Oct

KLM flights from Ireland to Southampton

Our best KLM deals on Ireland to Southampton flight tickets
KLM
10 Feb
DUB08:50Dublin
8h 10m
1 stop
SOU17:00Southampton Eastleigh
13 Feb
SOU17:30Southampton Eastleigh
4h 40m
1 stop
DUB22:10Dublin
€199
Find similar
KLM
2 Oct
DUB08:55Dublin
8h 05m
1 stop
SOU17:00Southampton Eastleigh
6 Oct
SOU17:35Southampton Eastleigh
4h 50m
1 stop
DUB22:25Dublin
€203
Find similar
KLM
3 Oct
DUB20:45Dublin
12h 00m
1 stop
SOU08:45Southampton Eastleigh
7 Oct
SOU09:20Southampton Eastleigh
10h 55m
1 stop
DUB20:15Dublin
€204
Find similar

British Airways flights from Ireland to Southampton

Our best British Airways deals on Ireland to Southampton flight tickets
British Airways
19 Sept
DUB14:00Dublin
1h 35m
SOU15:35Southampton Eastleigh
16 Oct
SOU20:00Southampton Eastleigh
1h 35m
DUB21:35Dublin
€523
Find similar
British Airways
19 Sept
DUB11:25Dublin
8h 00m
1 stop
SOU19:25Southampton Eastleigh
16 Oct
SOU20:00Southampton Eastleigh
1h 35m
DUB21:35Dublin
€654
Find similar
British Airways
19 Sept
DUB11:25Dublin
8h 00m
1 stop
SOU19:25Southampton Eastleigh
16 Oct
SOU16:50Southampton Eastleigh
4h 55m
1 stop
DUB21:45Dublin
€1,005
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Southampton 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, momondo users made 13,528 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Ireland to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 7/10

06:35-08:15

Nonstop1h 40m

Southampton Eastleigh

Tue 21/10

20:00-21:35

Nonstop1h 35m

€76

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 7/10

06:35-08:15

Nonstop1h 40m

Southampton Eastleigh

Tue 21/10

20:00-21:35

Nonstop1h 35m

€89

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 9/2

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Thu 12/2

20:10-21:50

Nonstop1h 40m

€97

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 2/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 6/10

20:00-21:35

Nonstop1h 35m

€98

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 9/2

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Fri 13/2

20:10-21:50

Nonstop1h 40m

€99

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 10/2

10:10-11:55

Nonstop1h 45m

Southampton Eastleigh

Thu 12/2

20:10-21:50

Nonstop1h 40m

€105

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 14/10

21:00-08:30

1 stop11h 30m

Southampton Eastleigh

Tue 21/10

20:00-21:35

Nonstop1h 35m

€120

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Tue 10/2

08:50-17:00

1 stop8h 10m

Southampton Eastleigh

Fri 13/2

17:30-22:10

1 stop4h 40m

€199

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 2/10

08:55-17:00

1 stop8h 05m

Southampton Eastleigh

Mon 6/10

17:35-22:25

1 stop4h 50m

€203

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 3/10

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

Tue 7/10

09:20-20:15

1 stop10h 55m

€204

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Ireland to Southampton

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 Southampton?

The cheapest month to fly to Southampton from Ireland is in December. Flight prices, which tend to average around €106, are often lower during this time because this is during the off-season. If you don’t want to visit Southampton in December, then you should wait until January to fly from Ireland, when ticket prices are also cheap, with an average price of €107.

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

On average, the least expensive day to fly to Southampton from Ireland is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as €110. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Southampton on Wednesday is €229.

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

Our data shows that the cheapest Ireland to Southampton flights are usually those with departure times at midday. Our users have found flights to Southampton at midday for as low as €124. Try not to purchase tickets in the evening because they tend to be around €195. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Ireland to Southampton Eastleigh flight route?

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

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

You are more likely to see cheaper flights to Southampton from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Southampton for around €148 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southampton from Ireland for as low as €108 on momondo.

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

There is only 1 cabin class available to choose from on Ireland to Southampton Eastleigh flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Ireland to Southampton flight deals and tips

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

Fastest flight time

1h 40m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Southampton

1 airport
The fastest flight from Ireland to Southampton takes 1h 40m
Direct flights go from Ireland to Southampton on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights..
There is 1 airport near Southampton: Southampton Eastleigh (SOU)
Search flight deals

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

    Prices for flights from Ireland to Southampton Eastleigh Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The necessary travel and health documents for your Southampton Eastleigh Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Ireland to Southampton

Compare and see reviews for airlines that fly from Ireland to Southampton with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €91Free CancellationRating
7.2
1,281 reviews
Search Aer Lingus flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

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

It is quick and easy to find Ireland to Southampton flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Southampton that suits you.

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

Yes. All flights to Southampton from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Ireland to Southampton.

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

Price alerts on flights to Southampton from Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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