They overcame a battling Camden Town 2-1 on Sunday to secure a place in the Capital Cup Final.
Charlton will be waiting for Spurs in the final once again after beating QPR 5-0 in the second semi-final. The teams are already due to lock horns in the Ryman Cup Final on April 14.
Spurs remain on track in all four cup competitions with two finals in the bag, the League Cup quarter-final to follow against Brighton and the biggest game of the season next up on Sunday when they face Women's Super League 2 side Aston Villa in the Women's FA Cup.
"Reaching these two finals shows how hard everyone is working," said coach Juan Amoros. "We're using different players which shows the depth of the squad and the quality of the reserve team.
"We're all working for each other and now we look forward to the finals against Charlton. Hopefully we'll bring a trophy back to the club."
Below: Spurs Ladies ahead of kick-off against Camden on Sunday
CAPITAL CUP SEMI-FINAL
Spurs Ladies 2-1 Camden Town
Report from Khalid Karimullah at Cheshunt FC
Spurs Ladies can look forward to another cup final after coming through a tough semi-final at home against Camden Town on Sunday.
After a bright opening, the composed Rianna Soobadoo played a lovely pass into the path of Kelley Blanchflower, who placed her effort across the face of goal.
Minutes later, Mollie Kmita won possession before laying the ball back to Soobadoo whose dipping shot flew inches wide.
A rare break for the visitors almost saw a one-on-one opportunity but Alex Keown was there to make a vital challenge.
Blanchflower then found Rosie Kmita, who just couldn't get enough power on her header but the deserved lead arrived on 43 minutes with Blanchflower involved again, this time her precise pass found Wendy Martin just inside the area and her side foot attempt beat Kirsten Thomson.
Minutes after the restart Mollie Kmita combined with Bianca Baptiste and her dangerous ball went across the face of goal, just evading Martin. Not long after, the latter's half-volleyed attempt from just inside the area came back off the inside of the post.
Camden found themselves level with 19 minutes remaining as Sarah White was given time to fire home from outside the area.
The visitors' joy was short lived, however, as Spurs were back in front just two minutes later. Martin saw her effort blocked but the ball fell kindly to Soobadoo and the midfielder made no mistake for 2-1.
With the momentum now swaying back and forth, Lucia Leon arrowed agonisingly wide and with the last chance of note, Nicolle Houston fired wide for Camden.
Spurs Ladies: Toni-Anne Wayne, Alex Keown, Sydney Hinchcliffe, Lucia Leon, Mollie Kmita, Shannon Moloney (Shona Chitate-Samuriwo 83), Wendy Martin, Riana Soobadoo, Bianca Baptiste (Shakira Waithe 56), Rosie Kmita, Kelley Blanchflower (Leanne Mabey 67). Substitute (not used): Avilla Bergin.
All photographs courtesy of and thanks to www.wusphotography.com