Cheap flights from Dublin to Brussels from £20

If you don’t want to visit Brussels Bruxelles-National Airport in January, then you should wait until February to fly from Dublin, when ticket prices are also cheap, with an average price of £77.

Our data shows that Thursday is the least expensive day to fly to Brussels Bruxelles-National Airport. Tickets to fly out on this day can be as low as £77. On the other hand, Wednesday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £138.

Our data shows that the cheapest Dublin to Brussels Bruxelles-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Brussels Bruxelles-National Airport in the afternoon for as low as £73. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £110 on average. Flights to Brussels Bruxelles-National Airport from Dublin at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around £99 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels Bruxelles-National Airport from Dublin for as low as £56 on momondo.

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

No. A direct flight is the cheapest option for a flight between Dublin to Brussels Bruxelles-National Airport.

As of October 2026, prices for Dublin to Brussels Bruxelles-National Airport flights are approximately 0% more expensive when compared to flights at the same time last year.

Historically, on average around 11% of flights between Dublin and Brussels have experienced a delay on any given week. The average delay length over the past 12 months has been 110 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday 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 10% of their flights experiencing any sort of delay.

As of October 2026, 5 flights take off from Dublin and land in Brussels Bruxelles-National Airport each day. The most common flight departure time for this route is 06:00, with 57% of daily flights taking off at midday.

As of October 2026, 36 flights take off from Dublin and land in Brussels Bruxelles-National Airport each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off on this day.