Cheap flights from the United Kingdom to Dublin from €17

If you aren’t able to travel during the month of January, then book flights to Dublin from United Kingdom during September instead. Flights to Dublin in September, while not as cheap as those in January, still average around €63.

Our data shows that Wednesday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €105. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around €312. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

Our data shows that the cheapest United Kingdom to Dublin flights are usually those with departure times in the afternoon. Our users have found flights to Dublin in the afternoon for as low as €138. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are €166 on average. Flights to Dublin from United Kingdom in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from London Luton to Dublin for the best United Kingdom - Dublin flight prices

You are more likely to see cheaper flights to Dublin from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €151 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from United Kingdom for as low as €111 on momondo.

There are 3 cabin classes available to choose from on United Kingdom to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair, British Airways, and KLM are the most popular carriers operating from United Kingdom to Dublin

Aer Lingus, British Airways and Ryanair are the top three most popular airlines that fly to Dublin from United Kingdom according to our data. Aer Lingus is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Dublin. Keep in mind that there are 3 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between United Kingdom and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 100 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of April 2026, 116 flights take off from United Kingdom and land in Dublin each day. The most common flight departure time for this route is 08:00, with 42% of daily flights taking off at midday.

The number of flights available between United Kingdom and Dublin is 815 per week as of April 2026. The most frequent departure day is Thu, with 22% of weekly flights leaving on this day.