A crowd of more than 21,000 – a record for the semi-final stages – roared the team on to a 15-6 victory over Bath Rugby which secured progress to the final and a re-match with Saracens who beat Northampton Saints in the other semi-final.
“It’s a great achievement to get to a sixth final,” said head coach Cockerill.
“It shows the consistency of this club is second to none. The players have been fantastic, they have worked so hard all season to get to this stage and they have to take the credit.”
Tigers came from 6-0 down after just 20 minutes to turn the tide and Toby Flood’s five penalties sealed the win.
“At half-time we said it was going to be about doing the simple things well,” said Cockerill.
“I thought it would pay off if we kept going, stayed mentally strong enough and stuck to our game. It is about not panicking and keeping your composure and our lads do that pretty well.
“It was close, there were two good sides out here, but we just managed to put them under enough pressure in the second half to edge it.”