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Cheap flights from Dublin to London from £42

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to London departing on 15/1. 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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Cheap return flights

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Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
£82Aer Lingus
Find Deal
Thu, 11 Dec - Mon, 15 Dec
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
£86Aer Lingus
Find Deal
Thu, 8 Jan - Sun, 18 Jan
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
£88Aer Lingus
Find Deal
Sun, 4 Jan - Sun, 11 Jan
Aer Lingus Logo
18:00 - 19:40DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
£90Aer Lingus
Find Deal
Fri, 13 Feb - Sun, 15 Feb
Aer Lingus Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50SOU-DUB
1h 40mdirect
£96Aer Lingus
Find Deal
Sat, 17 Jan - Sun, 18 Jan
Multiple Airlines Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Multiple Airlines Logo
18:20 - 23:15SOU-DUB
4h 55m1 stop
£99Multiple Airlines
Find Deal
Thu, 8 Jan - Sun, 11 Jan
Multiple Airlines Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Multiple Airlines Logo
19:55 - 12:40SOU-DUB
16h 45m1 stop
£106Multiple Airlines
Find Deal
Thu, 11 Dec - Mon, 15 Dec
Multiple Airlines Logo
05:45 - 17:20DUB-SOU
11h 35m1 stop
Multiple Airlines Logo
18:20 - 23:15SOU-DUB
4h 55m1 stop
£109Multiple Airlines
Find Deal
Thu, 8 Jan - Sun, 11 Jan
Multiple Airlines Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Multiple Airlines Logo
18:20 - 23:15SOU-DUB
4h 55m1 stop
£114Multiple Airlines
Find Deal
Sun, 4 Jan - Sun, 11 Jan
Multiple Airlines Logo
07:00 - 08:45DUB-SOU
1h 45mdirect
Multiple Airlines Logo
19:55 - 12:40SOU-DUB
16h 45m1 stop
£116Multiple Airlines
Find Deal
Thu, 11 Dec - Mon, 15 Dec

Aer Lingus flights from Dublin to Southampton

Our best Aer Lingus deals on Dublin to Southampton flight tickets
Aer Lingus
11 Dec
DUB07:00Dublin
1h 45m
SOU08:45Southampton Eastleigh
15 Dec
SOU20:10Southampton Eastleigh
1h 40m
DUB21:50Dublin
£82
Find similar
Aer Lingus
8 Jan
DUB07:00Dublin
1h 45m
SOU08:45Southampton Eastleigh
18 Jan
SOU20:10Southampton Eastleigh
1h 40m
DUB21:50Dublin
£86
Find similar
Aer Lingus
4 Jan
DUB07:00Dublin
1h 45m
SOU08:45Southampton Eastleigh
11 Jan
SOU20:10Southampton Eastleigh
1h 40m
DUB21:50Dublin
£88
Find similar

KLM flights from Dublin to Southampton

Our best KLM deals on Dublin to Southampton flight tickets
KLM
22 Jan
DUB08:50Dublin
8h 15m
1 stop
SOU17:05Southampton Eastleigh
25 Jan
SOU17:45Southampton Eastleigh
4h 25m
1 stop
DUB22:10Dublin
£177
Find similar
KLM
10 Dec
DUB05:55Dublin
26h 25m
1 stop
SOU08:20Southampton Eastleigh
13 Dec
SOU17:30Southampton Eastleigh
22h 50m
1 stop
DUB16:20Dublin
£219
Find similar
KLM
10 Dec
DUB08:50Dublin
8h 10m
1 stop
SOU17:00Southampton Eastleigh
13 Dec
SOU17:30Southampton Eastleigh
14h 35m
1 stop
DUB08:05Dublin
£220
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Dublin 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 279,928 searches. Data last updated 21 November 2025.
Use the filters below to find and compare flights from Dublin to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 11/12

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 15/12

20:10-21:50

Nonstop1h 40m

£82

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 8/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 18/1

20:10-21:50

Nonstop1h 40m

£86

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sun 4/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 11/1

20:10-21:50

Nonstop1h 40m

£88

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 13/2

18:00-19:40

Nonstop1h 40m

Southampton Eastleigh

Sun 15/2

20:10-21:50

Nonstop1h 40m

£90

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sat 17/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 18/1

20:10-21:50

Nonstop1h 40m

£96

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 8/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 11/1

18:20-23:15

1 stop4h 55m

£99

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 11/12

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 15/12

19:55-12:40

1 stop16h 45m

£106

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 8/1

05:45-17:20

1 stop11h 35m

Southampton Eastleigh

Sun 11/1

18:20-23:15

1 stop4h 55m

£109

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sun 4/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 11/1

18:20-23:15

1 stop4h 55m

£114

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 11/12

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Mon 15/12

19:55-12:40

1 stop16h 45m

£116

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 Dublin 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 month of December is, on average, the cheapest month to fly to Southampton from Dublin, with most prices found around £96. If you’re not able to fly to Southampton in December, then January is your next best option. Flight prices from Dublin to Southampton during January average around £98.

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

Our data shows that Tuesday is the least expensive day to fly to Southampton. Tickets to fly out on this day can be as low as £98. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £158. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southampton.

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

According to our data, the cheapest time of day to fly to Southampton is in the afternoon. momondo users have found flights departing from Dublin to Southampton in the afternoon for as low as £137. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £156 on average. Flights to Southampton from Dublin at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Dublin to Southampton Eastleigh flight route?

Fly from Dublin to Southampton Eastleigh for the best Dublin - 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 Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Southampton for around £135 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 Dublin for as low as £110 on momondo.

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

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

How have Dublin to Southampton flight prices changed over time?

As of November 2025, prices for Dublin to Southampton flights are approximately 76% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to Southampton (DUB to SOU) flight deals and tips

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

Best price found

£53

Fastest flight time

1h 40m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Southampton

1 airport
The best one-way flight to Southampton from Dublin in the past 72 hours is £53. The best return flight deal from Dublin to Southampton found on momondo in the last 72 hours is £100.
The fastest flight from Dublin to Southampton takes 1h 40m
Direct flights go from Dublin to Southampton on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. Airline offering direct flights is Aer Lingus..
There is 1 airport near Southampton: Southampton Eastleigh (SOU)
Search flight deals

  • How far is Dublin to Southampton Eastleigh by plane?

    The distance between Dublin and Southampton Eastleigh is about 265.7 mi. In terms of flight time, this usually takes a little over 1h 40m.

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

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

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

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

    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 Dublin Airport to Southampton Eastleigh Airport.

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

    The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

  • What is the most popular airline from Dublin to Southampton?

Best airlines flying from Dublin to Southampton

Compare and see reviews for airlines that fly from Dublin to Southampton with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £83Free CancellationRating
7.2
1,377 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From Dublin to Southampton

    Aer Lingus is one of the most popular airlines flying from Dublin to Southampton, operating 19 flights/week on average for this route. A good Aer Lingus flight deal for Dublin to Southampton starts from £83 round-trip, up to an average price of £152. Our users have rated Aer Lingus at 7.2/10.

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 Dublin to Southampton?

Finding the right flight to Southampton from Dublin is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Southampton quick and easy, saving you time and money.

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

All flight searches from Dublin to Southampton on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Southampton from Dublin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Dublin to Southampton flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Southampton 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.
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