Flying from Southampton to Dublin? Read this to arrive on time

The top performing Southampton to Dublin flight is the earliest flight of the day at 09:30, arriving on time at a very respectable rate of 91.07%. If you're under time pressure to be in a certain place, this is the flight for you.

If you're travelling for leisure and don't mind waiting a little longer for your first Guinness, either of the other flights will work well for you. The 16:05 and 20:10 departures can struggle with their punctuality, like that friend who would be late for their own funeral. Still, they will get you there as promised between 71% and 73% of the time — so in plain English, 1 in 4 passengers will be made wait slightly longer for their Dublin experience.

The flight itself takes 1 hour 40 minutes — short enough that a delay feels all the more frustrating. The FAQ section below covers everything else you need to know.

Flight	Departure	On-Time %
EI3301	09:30	91.07%
EI3309	20:10	72.97%
EI3305	16:05	71.43%

What about your return flight? Dublin to Southampton flights usually go three times per day and take an hour and 40 minutes. As with the outward journey, the eye-watering 07:00 Dublin to Southampton flight back to the South Coast is most likely to be punctual, arriving on time 96.6% of the time. This is not for the faint-hearted, especially if you plan on having a good night in Dublin before returning home. The afternoon and evening departures are no slouches either — arriving on time over 9 times in 10 and 5 times in 6 respectively. If a leisurely Dublin morning matters more than an early escape, either of these will serve you well.

Dublin to Southampton

Flight	Departure	On-Time %
EI3300	07:00	96.6%
EI3304	15:10	91.5%
EI3308	17:50	83.3%

Frequently asked questions

What time should I fly from Southampton to Dublin to arrive on time?

The 09:30 departure is the most punctual Southampton to Dublin flight, arriving on time 91% of the time. If punctuality matters to you, book the earliest flight of the day.

How long is the flight from Southampton to Dublin?

The Southampton to Dublin flight time is 1 hour 40 minutes.

Which airline flies Southampton to Dublin?

The Southampton to Dublin route is operated by Aer Lingus, with flights run by Emerald Airlines. There are three daily departures throughout the day.

Are Southampton to Dublin flights often delayed?

It depends on which flight you choose. Based on 60 days of tracked data, the morning departure runs on time over 91% of the time. The afternoon and evening departures are less reliable, arriving on time roughly 7 in 10 flights.

What is the most punctual Dublin to Southampton flight?

The 07:00 departure from Dublin is the standout performer, arriving on time 96.6% of the time. The afternoon and evening flights are also reliable, with on-time rates of 91.5% and 83.3% respectively.

How long is the flight from Dublin to Southampton?

The Dublin to Southampton flight takes 1 hour 40 minutes. Flights are operated by Aer Lingus using Emerald Airlines from Dublin Airport (DUB) to Southampton Airport (SOU).

Is it worth flying from Southampton to Dublin rather than a London airport?

For passengers in the south of England, Southampton avoids the hassle of travelling into London and dealing with larger, busier airports. With three daily flights operated by Aer Lingus, it is a convenient and well-connected option — just pick the right departure time.

How far in advance should I book Southampton to Dublin flights?

Aer Lingus typically releases fares up to 6 months in advance. Booking early generally gets you the best price, but the flight time you choose matters more than the price if arriving on time is a priority.