Warrington Wolves booked their place with a 24-10 quarter-final success against Leigh Leopards at The Halliwell Jones Stadium on Saturday.
They will go on to meet Hull KR in the last four on the weekend of May 9/10.
Facing Hull KR is a repeat of last year’s final at Wembley where the Robins snatched the silverware in the closing minutes.
The last time the two sides met in the semi-finals was in 2015, when Rovers were surprise victors at Headingley.
St Helens will face Wakefield Trinity or Wigan Warriors in the other semi-final.