Cheap flights from Belgium to Dublin from €30

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

Our data shows that Sunday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €113. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around €569. 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 Belgium to Dublin flights are usually those with departure times in the evening. Our users have found flights to Dublin in the evening for as low as €154. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are €200 on average. Flights to Dublin from Belgium in the morning 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 Belgium - Dublin flight prices

You are more likely to see cheaper flights to Dublin from Belgium 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 Belgium for as low as €72 on momondo.

There is only 1 cabin class available to choose from on Belgium 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 23% of flights between Belgium 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.

As of August 2026, 5 flights take off from Belgium and land in Dublin each day. The most common flight departure time for this route is 10:00, with 72% of daily flights taking off at midday.

As of August 2026, 41 flights take off from Belgium and land in Dublin each week. The most common flight departure day for this route is Fri, with 22% of weekly flights taking off on this day.