$60 Cheap Flights from Southampton (SOU) to Dublin (DUB)

Popular airlines from Southampton (SOU) to Dublin Airport (DUB)

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Cheap Flights from Southampton to Dublin (SOU-DUB)

Prices were available within the past 7 days and start at $60 for one-way flights and $137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
Aer Lingus
KLM
British Airways

Find the cheapest month to fly from Southampton (SOU) to Dublin (DUB)

May is typically the cheapest month to fly

From $85 - $252 per traveler.

Graph displaying average flight prices per month

Alternative airports near Dublin

Prices were available within the past 7 days. Prices and availability are subject to change.

Flights from Southampton (SOU) to Dublin (DUB)
Origin airport
Southampton
Destination airport
Dublin
Airlines serving
Aer Lingus, British Airways, KLM
Roundtrip price
$136
Distance
268 mi
Average flight time
1 hour 36 mins

Southampton to Dublin Flights

The cheapest times to fly from Southampton to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Southampton to Dublin are during the month of September. You can find some of the cheapest flights from Southampton to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Southampton to Dublin

Sunday is one of the best days to book for cheap flights from Southampton to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Southampton to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Southampton to Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from $60 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Southampton to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Southampton to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Southampton Airport (SOU) to Dublin Airport (DUB) cost?
You'll find affordable return tickets from Southampton Airport (SOU) to Dublin Airport (DUB) starting from $121. Grab your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Aer Lingus flight leaving SOU on August 13 2025 and touching down at DUB. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from SOU to DUB?
The cheapest flights from SOU to DUB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Southampton Airport (SOU) to Dublin Airport (DUB)?
When departing from Southampton Airport (SOU), you can board a direct flight to Dublin Airport (DUB) with Aer Lingus.
What is the cheapest airline that flies from SOU to DUB?
Currently, the cheapest carrier offering one-way flights from SOU to DUB is Aer Lingus. You can jet off on this route from $60. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SOU on September 12 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Southampton Airport (SOU) to Dublin Airport (DUB)?
When flying out of Southampton Airport (SOU), you'll have a choice from an average of 2 daily nonstop flights to Dublin Airport (DUB).
What are the most popular departure times for flights from Southampton Airport (SOU) to Dublin Airport (DUB)?
Flights between SOU and DUB tend to be busiest at 9 AM. For a quieter experience and potentially cheaper prices, look for a time when demand is lower.
What day of the week has the most flights from SOU to DUB?
If you depart on a Friday, you'll get the widest range of choices for flights from Southampton Airport (SOU) to Dublin Airport (DUB).
What is the earliest flight from Southampton Airport (SOU) to Dublin Airport (DUB)?
Catch the earliest flight at around 9:25AM UTC+0, heading out of Southampton Airport (SOU). You'll be traveling for around 1h 40m, reaching Dublin Airport (DUB) at approximately 11:05AM UTC+0.
How long does it take to fly from Southampton Airport (SOU) to Dublin Airport (DUB)?
It takes around 1 hour and 39 minutes to travel the 270 mi from SOU to DUB.
What airline has the least delays from SOU to DUB?
Consider traveling with British Airways if you'd like to fly straight from Southampton Airport (SOU) to Dublin Airport (DUB) without any delays. This airline has the strongest track record for punctuality, with an on-time score of 100%. Want to get notified of any changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Southampton Airport (SOU) to Dublin Airport (DUB)?
To avoid potential delays on the Southampton Airport (SOU) to Dublin Airport (DUB) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Dublin from Southampton Airport (SOU)?
If you're taking a direct flight from Southampton Airport (SOU) to Dublin, Dublin Airport (DUB) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Southampton Airport (SOU) to Dublin Airport (DUB) last-minute?
Booking your ticket from SOU to DUB shortly before your trip is usually more expensive. But if you're flexible with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a SOU to DUB flight and hotel package?
Booking a SOU to DUB flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Southampton Airport (SOU) to Dublin Airport (DUB)?
In most instances, you can cancel or modify your SOU to DUB flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like further details, go to our Customer Service portal.
*Available to One Key members.