Bradford Bulls 14 Tries: Evans, Tupou, Vagana Goals: Deacon
St Helens 35 Tries: Talau, Meli, Gidley, Clough, Pryce, Bennett Goals: Long 3, Pryce, Wellens Drop Goal: Long
St Helens opened up a 17-4 lead at half time thanks to tries from Francis Meli, Willie Talau and Matt Gidley. James Evans was the Bulls scorer.
Bradford scored the first try of the second half courtesy of Tame Tupou.
But, Saints upped the tempo and with tries from Paul Clough, Leon Pryce and Mike Bennett, they completed a comfortable win to become the first team to make the final at Wembley since 1999 and look favourites to defend their trophy.
Catalans Dragons 37 Tries: McGuire, Wilson, Mogg, Duport 2, Croker Goals: Jones 6 Drops Goals: Jones
Wigan Warriors 24 Tries: Leuluai, Higham, Goulding, Calderwood Goals: Richards 4
Catalans Dragons stunned the Rugby League World by becoming the first non-British team to reach the Challenge Cup final thanks to a shock win over Wigan Warriors at the Halliwell-Jones Stadium Warrington.
The French underdogs raced into an amazing 22-0 lead inside the first quarter of the game with tries from Casey McGuire, John Wilson, Adam Mogg and Vincent Duport. Wigan did get on the score-sheet through Thomas Leuluai but they trailed 22-6 at the interval.
The Warriors hit back after the break to reduce the deficit to seven points.
But Jason Croker's try from a Stacey Jones kick sealed victory for the Dragons and booked a trip to Wembley to play holders St Helens.