Cheap flights from Brussels to Dublin from €16

If you aren’t able to travel during the month of January, then book flights to Dublin from Brussels during February instead. Flights to Dublin in February, while not as cheap as those in January, still average around €75.

Our data shows that Thursday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €161. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around €566. 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 Brussels to Dublin flights are usually those with departure times in the morning. Our users have found flights to Dublin in the morning for as low as €161. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €168 on average. Flights to Dublin from Brussels in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Brussels Bruxelles-National to Dublin for the best Brussels - Dublin flight prices

You are more likely to see cheaper flights to Dublin from Brussels when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €103 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 Brussels for as low as €73 on momondo.

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

Historically, on average around 22% of flights between Brussels and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 103 minutes.

Generally, flights departing in the evening 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. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 21% of their flights experiencing any sort of delay.

6 flights are operational daily from Brussels to Dublin as of August 2026. The most popular departure time for this route is 10:00, with 64% of flights per day taking off at midday.

45 flights are operational weekly from Brussels to Dublin as of August 2026. The most popular departure day for this route is Fri, with 20% of flights per week taking off on this day.