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Cheap flights from Dublin to London 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 Dublin to London departing on 12/10. 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 Dublin to London (DUB-SOU)

Cheap return flights

Aer Lingus Logo
07:30 - 09:10DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€75Aer Lingus
Find Deal
Mon, 6 Oct - Tue, 21 Oct
Aer Lingus Logo
07:30 - 09:10DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€86Aer Lingus
Find Deal
Mon, 6 Oct - Mon, 13 Oct
Aer Lingus Logo
07:30 - 09:10DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€87Aer Lingus
Find Deal
Mon, 6 Oct - Tue, 21 Oct
Aer Lingus Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
Aer Lingus Logo
20:00 - 21:35SOU-DUB
1h 35mdirect
€88Aer Lingus
Find Deal
Thu, 9 Oct - Mon, 13 Oct
Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
Logo
20:30 - 20:55SOU-DUB
24h 25m2 stops
€129
Find Deal
Thu, 9 Oct - Mon, 13 Oct
Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
Logo
20:30 - 20:55SOU-DUB
24h 25m2 stops
€135
Find Deal
Thu, 9 Oct - Mon, 13 Oct
KLM Logo
20:45 - 08:45DUB-SOU
12h 00m1 stop
KLM Logo
18:05 - 22:25SOU-DUB
4h 20m1 stop
€204KLM
Find Deal
Wed, 24 Sep - Sat, 27 Sep
KLM Logo
20:45 - 08:45DUB-SOU
12h 00m1 stop
KLM Logo
09:20 - 20:15SOU-DUB
10h 55m1 stop
€205KLM
Find Deal
Fri, 3 Oct - Sun, 5 Oct
British Airways Logo
14:10 - 15:45DUB-SOU
1h 35mdirect
British Airways Logo
16:05 - 17:40SOU-DUB
1h 35mdirect
€271British Airways
Find Deal
Sat, 25 Oct - Mon, 27 Oct
British Airways Logo
07:00 - 08:40DUB-SOU
1h 40mdirect
British Airways Logo
09:10 - 10:50SOU-DUB
1h 40mdirect
€272British Airways
Find Deal
Fri, 17 Oct - Sun, 19 Oct

KLM flights from Dublin to Southampton

Our best KLM deals on Dublin to Southampton flight tickets
KLM
24 Sept
DUB20:45Dublin
12h 00m
1 stop
SOU08:45Southampton Eastleigh
27 Sept
SOU18:05Southampton Eastleigh
4h 20m
1 stop
DUB22:25Dublin
€204
Find similar
KLM
3 Oct
DUB20:45Dublin
12h 00m
1 stop
SOU08:45Southampton Eastleigh
5 Oct
SOU09:20Southampton Eastleigh
10h 55m
1 stop
DUB20:15Dublin
€205
Find similar
KLM
5 Sept
DUB20:45Dublin
12h 00m
1 stop
SOU08:45Southampton Eastleigh
9 Sept
SOU17:35Southampton Eastleigh
4h 50m
1 stop
DUB22:25Dublin
€260
Find similar

Aer Lingus flights from Dublin to Southampton

Our best Aer Lingus deals on Dublin to Southampton flight tickets
Aer Lingus
6 Oct
DUB07:30Dublin
1h 40m
SOU09:10Southampton Eastleigh
21 Oct
SOU20:00Southampton Eastleigh
1h 35m
DUB21:35Dublin
€75
Find similar
Aer Lingus
6 Oct
DUB07:30Dublin
1h 40m
SOU09:10Southampton Eastleigh
13 Oct
SOU20:00Southampton Eastleigh
1h 35m
DUB21:35Dublin
€86
Find similar
Aer Lingus
6 Oct
DUB07:30Dublin
1h 40m
SOU09:10Southampton Eastleigh
21 Oct
SOU20:00Southampton Eastleigh
1h 35m
DUB21:35Dublin
€87
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 13,528 searches. Data last updated 29 August 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

Mon 6/10

07:30-09:10

Nonstop1h 40m

Southampton Eastleigh

Tue 21/10

20:00-21:35

Nonstop1h 35m

€75

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 6/10

07:30-09:10

Nonstop1h 40m

Southampton Eastleigh

Mon 13/10

20:00-21:35

Nonstop1h 35m

€86

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Mon 6/10

07:30-09:10

Nonstop1h 40m

Southampton Eastleigh

Tue 21/10

20:00-21:35

Nonstop1h 35m

€87

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 9/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 13/10

20:00-21:35

Nonstop1h 35m

€88

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 9/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 13/10

20:30-20:55

2 stops24h 25m

€129

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Thu 9/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Mon 13/10

20:30-20:55

2 stops24h 25m

€135

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Wed 24/9

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

Sat 27/9

18:05-22:25

1 stop4h 20m

€204

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 3/10

20:45-08:45

1 stop12h 00m

Southampton Eastleigh

Sun 5/10

09:20-20:15

1 stop10h 55m

€205

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sat 25/10

14:10-15:45

Nonstop1h 35m

Southampton Eastleigh

Mon 27/10

16:05-17:40

Nonstop1h 35m

€271

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 17/10

07:00-08:40

Nonstop1h 40m

Southampton Eastleigh

Sun 19/10

09:10-10:50

Nonstop1h 40m

€272

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 cheapest month to fly to Southampton from Dublin is in December. Flight prices, which tend to average around €108, 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 Dublin, when ticket prices are also cheap, with an average price of €109.

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

On average, the least expensive day to fly to Southampton from Dublin is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as €113. 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 €231.

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

Our data shows that the cheapest Dublin 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 €198. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 €147 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 €101 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 August 2025, prices for Dublin to Southampton flights are approximately 64% 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

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Southampton

1 airport
The fastest flight from Dublin to Southampton takes 1h 35m
Direct flights go from Dublin to Southampton every day.
There is 1 airport near Southampton: Southampton Eastleigh (SOU)
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  • How far is Dublin to Southampton Eastleigh by plane?

    Southampton Eastleigh is 427.7 km away from Dublin. 1h 35m is a normal flight duration for this route.

  • 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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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 you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • 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 €92Free CancellationRating
7.2
1,240 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From Dublin to Southampton

    Aer Lingus operates around 13 flights from Dublin to Southampton every week. The average price of these flights found in the last 72 hours has been €156, but momondo users have found Aer Lingus deals from Dublin to Southampton from as low as €107 round-trip. Aer Lingus has been scored 7.2/10 in 1,240 reviews.

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?

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

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

Once you have performed a search for Dublin to Southampton flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Southampton, momondo offers a useful price alert feature which will track prices for flights to Southampton from Dublin and alert you when they change.

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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