According to the Dublin Airport Authority, 46 extra flights have been laid on - meaning more than 130 flights in total will be carrying supporters to the joint-host nation.

And the airport's terminals have been decked out to ensure fans get in the spirit of the tournament early.

"Dublin Airport is delighted to be the key departure point for Irish fans travelling to Euro 2012, as it was for Euro 88 and the World Cup finals in 1990, 1994 and 2002," spokeswoman Siobhan Moore said.

Twenty-three of the flights are scheduled to depart this Friday and Saturday, ahead of the Republic's first game against Croatia in Poznan on Sunday evening.

Fans are reminded to check which terminal their flight departs from and to arrive at least 90 minutes before their departure time, even if they've checked in online.

Earlier this week, the Tánaiste announced consular arrangements for Irish fans travelling to watch the Group C games in Poland, with round-the-clock emergency support offered in both Poznan and Gdansk.

Eamon Gilmore reminded those making the journey to keep a separate copy of the details page of their passport in case it's lost or stolen and to ensure they have adequate travel insurance to cover accidents or illness.

He also urged caution on Poland's roads, as 65 people were killed and 1,218 injured in the country during this year's May Bank Holiday weekend.

"Border controls at road and rail borders are to be reintroduced for the duration of Euro 2012," Mr Gilmore added.

"Those driving to Poland should expect delays, which could be lengthy, and allow plenty of time to get to matches. Remember to bring some Polish currency (zloty) with you, if you plan to use the tolled motorways."

Among the guidance offered by the Irish Department of Foreign Affairs is a warning that Poland operates a zero tolerance policy on public drunkenness and that the authorities have the right to detain offenders in detoxification centres - something which has been known to lead to missed flights by tourists.