Cheap flights from Ireland to Bulgaria from €39

In general, May is the cheapest month to fly from Ireland to Bulgaria. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €135. If you aren’t able to travel during the month of May, then book flights to Bulgaria from Ireland during November instead. Flights to Bulgaria in November, while not as cheap as those in May, still average around €139.

Fly from Dublin to Sofia for the best Ireland - Bulgaria flight prices

You are more likely to see cheaper flights to Bulgaria from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around €226 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Ireland for as low as €172 on momondo.

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

Ryanair is the most popular carrier operating from Ireland to Bulgaria

Lufthansa, Aer Lingus and Ryanair are the top three most popular airlines that fly to Bulgaria from Ireland according to our data. Lufthansa is the first choice among our users, with 53% of people opting to fly with this airline when travelling to Bulgaria. Keep in mind that there are 3 different airlines that fly to Bulgaria on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% of flights between Ireland and Bulgaria have experienced a delay on any given week. The average delay length over the past 12 months has been 108 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.

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 9% of their flights experiencing any sort of delay.

As of March 2026, there are 1 flights per week flying from Ireland to Bulgaria. The most common day of the week flights depart is Wed, with 100% of flights taking off on this day.

Flight times from Ireland to Bulgaria vary, but if you’re flying out of Dublin and flying into Sofia (one of the most popular routes), then the duration is 3h 40m on average. Another popular route from Ireland to Bulgaria is flying from Cork to Sofia, which will take roughly 25h 55m. Keep in mind that layovers or delays could extend your travel time.