Town will face Bohemians in the decider next month.
Athlone Town have booked their place in the final of the Women's FAI Cup.
Town secured a 2-0 win away to Shamrock Rovers in Tallaght Stadium yesterday to confirm their spot in the decider for the fourth year in a row.
Kelly Brady scored a penalty just before half time, with Madison Gibson sealing victory with her side's second on the 73rd minute.
The club will now face Bohemians on October 19th after they defeated Treaty United 2-0 on Saturday night.
Defender Shauna Brennan says her side put in a strong performance:
Brennan spoke to Liam White after the game says they are looing forward to the week's ahead:
Full Interview: Portarlington Footballer Ronan Coffey
Full Interview: The Down's Manager Dermot Power
St Brigid's And St Joseph's Aiming To Reach Leinster Semi-Finals
Ballinagar And Milltown To Meet In Leinster Intermediate Quarter-Final
Ronan Coffey Praises Portarlington’s Young Guns Ahead Of Leinster Quarter-Final
Mauricio Pochettino Set To Be Appointed Manchester United Manager
Darragh Murray Named In Irish Squad For Fiji Clash
Portlaoise Panthers Aiming To Bounce Back In Division One
Portarlington On The Road In Leinster
The Down's Building Towards Leinster Football Quarter-Final
Laois Provisional League Fixtures Revealed
The Harps Manager Praises His Sides Efforts In Leinster
Buccaneers Claim Back To Back AIL Wins
Kilcormac Killoughey Captain Full Of Praise For Goalkeeper
Lough Lene Gaels Suffer Late Heartbreak In Leinster Quarter-Final
Crookedwood Win Leinster Junior Camogie Title
Conor Slevin Wins Dramatic Leinster Quarter-Final For Kilcormac Killoughey
Ireland Secure Comfortable Win Over Argentina
Kilcormac Killoughey Seal Win But Heartbreak For Lough Lene Gaels And The Harps